MedWorm: Allopurinol

  A retrospective study of intravenous sodium stibogluconate alone and in combinations with allopurinol, rifampicin, and an immunomodulator in the treatment of Indian post-kala-azar dermal leishmaniasis

Conclusion: No major advantage was obtained using allopurinol, rifampicin or Mw vaccine along with SSG as compared to SSG alone. (Source: Indian Journal of Dermatology, Venereology and Leprology)

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  Serum Uric Acid Levels and Renal Damage in Hyperuricemic Hypertensive Patients Treated With Renin-Angiotensin System Blockers.

ConclusionsIn hyperuricemic hypertensives normal serum UA levels are associated with normal RV/RRI, integrated marker of tubulointerstitial damage and renal arteriolopathy, independently of RAS activation.American Journal of Hypertension 2010; doi:10.1038/ajh.2010.33. PMID: 20203626 [PubMed - as supplied by publisher] (Source: American Journal of Hypertension)

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  Relative efficacy of casein or soya protein combined with palm or safflower-seed oil on hyperuricaemia in rats.

Authors: Lo HC, Wang YH, Chiou HY, Lai SH, Yang Y Diets that ameliorate the adverse effects of uric acid (UA) on renal damage deserve attention. The effects of casein or soya protein combined with palm or safflower-seed oil on various serum parameters and renal histology were investigated on hyperuricaemic rats. Male Wistar rats administered with oxonic acid and UA to induce hyperuricaemia were fed with casein or soya protein plus palm- or safflower-seed oil-supplemented diets. Normal rats and hyperuricaemic rats with or without allopurinol treatment (150 mg/l in drinking water) were fed with casein plus maize oil-supplemented diets. After 8 weeks, allopurinol treatment and soya protein plus safflower-seed oil-supplemented diet significantly decreased serum UA in hyperuricaemic rats (o...

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  Antenatal allopurinol for reduction of birth asphyxia induced brain damage (ALLO-Trial); a randomized double blind placebo controlled multicenter study

DiscussionIn this trial we aim to answer the question whether antenatal allopurinol administration reduces hypoxic-ischaemic encephalopathy in neonates exposed to foetal hypoxia.Trial registration numberClinical Trials, protocol registration system: NCT00189007 (Source: BMC Pregnancy and Childbirth - Latest articles)

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  Crystal arthropathies

Abstract: Crystal arthropathies are a diverse group of disorders characterized by deposition of various minerals in joints and soft tissues leading to inflammation. The patterns of presentation for different types of crystal arthritis are often characteristic enough to differentiate them from each other and from other types of inflammatory arthropathies, but mistakes can be made, leading to delayed or incorrect management. Gout is the most common of all the crystal arthropathies, and its prevalence and clinical complexity appear to be increasing. In addition to gout, which is caused by monosodium urate crystal precipitation, two other main crystal types can be associated with inflammatory symptoms because of their deposition in and around joints. These are calcium pyrophosphate dihydrate, ...

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  Toxic epidermal necrolysis (Lyell's disease)

Abstract: Stevens–Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are severe adverse drug reactions, characterized by a low incidence but high mortality, initially described as separate entities, but today considered variants of the same pathologic process and differing only for severity.The majority of cases appear to be related to idiosyncratic drug reactions. The drugs most commonly involved are: antibiotics such as sulfonamides, β-lactam, tetracyclines and quinolones; anticonvulsants such as phenytoin, phenobarbital and carbamazapine; antiretroviral drugs; nonsteroidal anti-inflammatory drugs, allopurinol.There is common agreement to consider TEN as the manifestation of a disregulated immune reaction against epithelial cells. During the first stages of TEN, apoptosis med...

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  Childhood course of renal insufficiency in a family with a uromodulin gene mutation

This report provides a long-term characterization of renal functional decline in three children from one family with a novel UMOD mutation (c.891T>G, p.C297W) who received allopurinol and a low protein diet. While renal functional decline is slow in individuals with UMOD mutations, it may appear early in life and be associated with marked hyperuricemia. Anemia was also noted in this family. Content Type Journal ArticleCategory Brief ReportDOI 10.1007/s00467-009-1436-yAuthors Péter Schäffer, Heim Pál Children’s Hospital Department of Nephrology and Gastroenterology Budapest HungaryÉva Gombos, Heim Pál Children’s Hospital Department of Nephrology and Gastroenterology Budapest HungaryKrisztina Meichelbeck, Heim Pál Children’s Hospital Department of Nephrology and Gastroe...

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  Potential drug–drug interactions and radiodiagnostic procedures: an in-hospital survey

Conclusions Among patients undergoing radiological examination, types and predictors of potential DDIs appeared in agreement with other kind of in-hospital populations. Premedication revealed to be a proxy predictor for potential DDIs. Considering the poor capability of the prescriber in recognizing interactions, their systematic evaluation (using an informatics tool) in patients undergoing radiological examination might be helpful in preventing the occurrence of clinically relevant DDIs. Content Type Journal ArticleCategory Research ArticleDOI 10.1007/s11096-010-9370-4Authors F. Lapi, University of Florence Tuscan Regional Centre of Pharmacovigilance, Department of Pharmacology Viale G. Pieraccini No. 6 50139 Florence ItalyM. Vietri, University of Florence Tuscan Regional Centre o...

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  Gout Associated With Worse Heart Failure Outcomes

ORLANDO — Gout boosted the risk of death or hospitalization for heart failure in an observational, case-control study of more than 150,000 patients with heart failure. The analysis also showed that patients with heart failure and gout who were on long-term allopurinol treatment had a significantly reduced risk for death or heart failure hospitalization, Dr. George Thanassoulis said at the annual scientific sessions of the American Heart Association. (Source: Internal Medicine News)

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  Gout Associated With Worse Heart Failure Outcomes

ORLANDO — Gout boosted the risk of death or hospitalization for heart failure in an observational, case-control study of more than 150,000 patients with heart failure. Patients with heart failure and gout who were on long-term allopurinol treatment had a significantly reduced risk for death or heart failure hospitalization, Dr. George Thanassoulis said at the annual scientific sessions of the American Heart Association. (Source: Cardiology News)

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  Gout Linked to Increased Risk for Worse Heart Failure Outcomes

ORLANDO — Gout boosted the risk of death or hospitalization for heart failure in an observational, case-control study of more than 150,000 patients with heart failure. The analysis also showed that patients with heart failure and gout who were on long-term allopurinol treatment had a significantly reduced risk for death or heart failure hospitalization, Dr. George Thanassoulis said at the annual scientific sessions of the American Heart Association. (Source: Rheumatology News)

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  The Novel Cytoprotectant Hydrogen Sulfide Mitigates Ischemia-Reperfusion Injury via A Xanthine Oxidase-Mediated Pathway

Introduction: Hydrogen sulfide (HS) has been shown by our lab, and others, to significantly mitigate the damage caused by ischemia-reperfusion injury (IRI), but the mechanism of action remains poorly understood. As a partial inhibitor of oxidative phosphorylation (by reversible inhibition of cytochrome c oxidase), HS reduces ATP synthesis with a resultant increase in the activity of xanthine oxidase (XO) and the generation of reactive oxygen species (ROS). We hypothesize that that the low levels of ROS result in the upregulation of natural antioxidant and antiapoptotic pathways, thereby conferring protection against a subsequent profound ischemic event. As such, we hypothesize that the XO inhibitor allopurinol would negate the protective effects of HS previously demonstrated in our in vitr...

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  Meta-analysis: allopurinol in the prevention of postendoscopic retrograde cholangiopancreatography pancreatitis

Source: DARE Area: Evidence > Disease Focused Reviews CRD Summary: The review concluded that prophylactic allopurinol may not be useful for postendoscopic retrograde cholangiopancreatography [ERCP] pancreatitis. This was a reasonably well conducted review. The authors' conclusions reflected the results of the review and appear likely to be reliable, but the lack of study details and statistical heterogeneity should be borne in mind. CRD Commentary: This was a carefully conducted and well-reported systematic review addressing a clearly stated research question. Appropriate inclusion criteria were defined and measures were taken to avoid the introduction of error and bias during the review process. The literature search included a variety of relevant databases, but search terms were not ...

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  Effects of ammonia and allopurinol on rat hippocampal NMDA receptors

Ammonia is considered to be the main agent responsible for hepatic encephalopathy which progressively leads to altered mental status. N-methyl-D-aspartate (NMDA) is an ionotropic glutamate receptor, which is involved in synaptogenesis, memory and neurotoxicity. The aim of this study was to investigate the effects of ammonia intoxication and allopurinol, a xanthine oxidase (XO) inhibitor, on NMDA receptor subunits, NR2A and NR2B, in the hippocampus of rats. Thirty-six male rats were divided into three groups (n = 12/group) as follows: (1)control group (phosphate buffered saline (PBS) solution); (2)ammonia group (ammonium acetate, 2.5 mmol/kg), (3)ammonia + allopurinol group (ammonium acetate, 2.5 mmol/kg, allopurinol, 50 mg/kg). Each rat received intraperitoneal injection for 28 days. Weste...

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  Treatment of disseminated granuloma annulare with allopurinol: case report

Granuloma annulare (GA) is a rare disease characterized by granulomatous inflammation of the dermis. A variant form of the disease, disseminated granuloma annulare (DGA), can be observed in about 15% of affected patients. Localized GA is likely to resolve spontaneously within months or a few years, whereas DGA can persist for decades. Various therapies have been suggested in these cases, but none of them has been demonstrated to be consistently efficacious. Allopurinol has been successfully used in granulomatous diseases such as sarcoidosis or reactions to polymethylmethacrylate spheres; therefore, we decided to evaluate the possible efficacy of this drug in three patients with long-lasting, therapy-resistant DGA. (Source: Dermatologic Therapy)

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  Investigation of enhancement effects of nicotine on cholinergic neurotransmission in isolated rabbit gastric fundus: role of antioxidants

In conclusion, mannitol (5 × 10[minus]3 m) significantly reduced contractile response to nicotine on EFS only in high concentration. Whereas in small concentrations mannitol (10[minus]4 m) statistically did not cause any results. Deferoxamine and allopurinol also did not have any significant response. (Source: Autonomic and Autacoid Pharmacology)

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  Clinical study on treatment of hyperuricaemia by retention enema of Chinese herbal medicine combined with allopurinol

Conclusion  Retention enema with: Chinese herbal medicine combined with allopurinol could obviously reduce the uric acid level in blood, improve patients’ renal function and lipid metabolism, and alleviate the clinical symptoms in patients with HUE. Content Type Journal ArticleCategory Original ArticleDOI 10.1007/s11655-009-0431-2Authors Qian Chen, Traditional Chinese Medcine Hospital of Xinjiang Uigur Municipality Department of Endocrinology Urumqi 830000 ChinaLi Ma, Traditional Chinese Medcine Hospital of Xinjiang Uigur Municipality Department of Endocrinology Urumqi 830000 ChinaWupu Akebaier, Traditional Chinese Medcine Hospital of Xinjiang Uigur Municipality Department of Endocrinology Urumqi 830000 China Journal Chinese Journal of Integrative MedicineOnlin...

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  ALOPRIM (Allopurinol) Injection, Powder, Lyophilized, For Solution [Bioniche Pharma USA LLC]

Updated Date: Jan 15, 2010 EST (Source: DailyMed Drug Label Updates for the last seven days (since May 20, 2007 EST))

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  Xanthine dehydrogenase deficiency with novel sequence variations presenting as rheumatoid arthritis in a 78-year-old patient

Conclusion  Hereditary xanthinuria is a rare disorder, but it also needs to be considered in patients not originating from Mediterranean countries or the Near or Middle East. Urate concentration in serum and urine may provide an initial indication of XDH deficiency before high-performance liquid chromatography (HPLC) analysis is performed. The key to identifying the disorder is a greater awareness of XDH deficiency amongst primary care physicians, nephrologists, and urologists, but also rheumatologists. The diagnosis and therapeutic management requires a multidisciplinary approach. Content Type Journal ArticleCategory Research ReportDOI 10.1007/s10545-009-9011-zAuthors Agnieszka Jurecka, The Children’s Memorial Health Institute Department of Metabolic Diseases, End...

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  Allopurinol: Toxic epidermal necrolysis: case report

(Source: Reactions)

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  Ardea Biosciences Reports Positive Results For RDEA594, Its Lead Product Candidate For Gout, In Combination With Allopurinol Or Febuxostat

Ardea Biosciences, Inc. (Nasdaq: RDEA) announced additional positive results from a recently completed Phase 2a study of RDEA594, its lead product candidate for the treatment of hyperuricemia and gout, as well as additional positive results from the second panel of a Phase 1 drug-drug interaction and pharmacodynamic study of RDEA594 in combination with febuxostat (Uloric®, Takeda Pharmaceutical Company Limited; Adenuric®, Ipsen and Menarini)... (Source: Health News from Medical News Today)

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  Ardea Biosciences Reports Positive Results For RDEA594, Its Lead Product Candidate For Gout, In Combination With Allopurinol Or Febuxostat

Ardea Biosciences, Inc... (Source: Pharma Industry News From Medical News Today)

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  Ardea Biosciences Reports Positive Results for RDEA594, its Lead Product Candidate for Gout, in Combination with Allopurinol or Febuxostat

- 100% of patients reached target serum urate levels with the combination of RDEA594 and allopurinol - RDEA594 combined with febuxostat reduced serum urate levels in healthy volunteers by approximately 70% SAN DIEGO, Jan. 7 /PRNewswire-FirstCall/ --... (Source: Drugs.com - Clinical Trials)

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  A case of mexiletine-induced hypersensitivity syndrome presenting as eosinophilic pneumonia.

Authors: Lee SP, Kim SH, Kim TH, Sohn JW, Shin DH, Park SS, Yoon HJ An 82-yr-old man was presented with fever and cough accompanied by generalized erythematous rash. He had taken mexiletine for 5 months, as he had been diagnosed with dilated cardiomyopathy and ventricular arrhythmia. Laboratory studies showed peripheral blood eosinophilia and elevated liver transaminase levels. Chest radiographs showed multiple nodular consolidations in both lungs. Biopsies of the lung and skin lesions revealed eosinophilic infiltration. After a thorough review of his medication history, mexiletine was suspected as the etiologic agent. After discontinuing the mexiletine and starting oral prednisolone, the patient improved, and the skin and lung lesions disappeared. Subsequently, mexiletine was confirme...

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  Serum cystatin C is a potential endogenous marker for the estimation of renal function in male gout patients with renal impairment.

Authors: Choe JY, Park SH, Kim SK Serum creatinine level is the most commonly used indices for assessment of glomerular filtration rate (GFR), even though these indices have been shown to have some limitations in clinical practice. We investigated the diagnostic efficacy of serum cystatin C compared to that of serum creatinine levels and identified the relating factors associated with changes in serum cystatin C levels in gout patients with renal impairment. A total of 68 gouty patients with renal impairment were enrolled in this study. Diagnostic efficacy of serum cystatin C levels was evaluated through non-parametric receiver operating characteristic (ROC) analysis. The risk factors for changes in serum cystatin C levels were confirmed using multivariate regression analysis. With 24-...

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  Visceral leishmaniasis in a renal transplant recipient treated with allopurinol.

We report a case of visceral leishmaniasis in a 49-year-old male renal transplant recipient, a resident of the western part of Tunisia, which is an endemic zone for the disease. Just before and after the transplantation, the patient resided in Tunis, which is non-endemic for leishmaniasis. Visceral leishmaniasis occurred eight years after renal transplantation, and the clinical picture was characterized by fever and pancytopenia. Leish-maniae were detected by bone marrow aspiration. Pentavalent antimonal was used for 28 days and was substituted by allopurinol (20 mg/kg per day). One year after the infection, the patient remains totally asymptomatic. Our report suggests that visceral leishmaniasis may complicate the clinical course of organ transplantation and can be fatal, particularly whe...

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  The Dynamics of Chronic Gout Treatment: Medication Gaps and Return to Therapy

Abstract: Objective: To identify gaps in therapy with urate-lowering drugs for the treatment of gout as well as factors associated with resuming therapy.Methods: From 2 integrated delivery systems, we identified patients 18 years or older with a diagnosis of gout who initiated use of a urate-lowering drug from January 1, 2000 through June 30, 2006 and who had a gap in therapy. A gap was defined as a period of over 60 days after the completion of 1 prescription in which no refill for a urate-lowering drug was obtained. Survival curves were used to assess return to therapy of urate-lowering drugs. Cox proportional hazards analysis estimated the association between covariates and return to therapy.Results: There were 4166 new users of urate-lowering drugs (97% received allopurinol), of whom 2...

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  Dual energy computed tomography for quantification of tissue urate deposits in tophaceous gout: help from modern physics in the management of an ancient disease

We describe a difficult case of tophaceous gout notable for several reasons: utilization of rasburicase as uricolytic treatment to dramatically reduce tissue urate burden; treatment of gout flares with interleukin-1β inhibition; and quantification of tissue urate with novel dual energy computed tomography technology before and after uricolytic therapy. Content Type Journal ArticleCategory Case ReportDOI 10.1007/s00296-009-1295-7Authors A. Kirstin Bacani, Mayo Clinic Division of Rheumatology, Department of Medicine Rochester MN 55902 USACynthia H. McCollough, Mayo Clinic Department of Radiology Rochester MN 55902 USAKatrina N. Glazebrook, Mayo Clinic Department of Radiology Rochester MN 55902 USAJeffrey R. Bond, Mayo Clinic Department of Radiology Rochester MN 55902 USAClement J. M...

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  [Rasburicase versus allopurinol in the treatment of hyperuricaemia in tumour lysis syndrome.]

CONCLUSION: This study demonstrated that there is more rapid control and lower plasma uric acid levels in patients at high risk for tumour lysis syndrome who received rasburicase compared to allopurinol, as well as lower levels of creatinine and a lower percentage of haemodialysis. PMID: 20022572 [PubMed - as supplied by publisher] (Source: Anales de Pediatria)

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  ZYLOPRIM (Allopurinol) Tablet [Prometheus Laboratories Inc.]

Updated Date: Dec 16, 2009 EST (Source: DailyMed Drug Label Updates for the last seven days (since May 20, 2007 EST))

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  Allopurinol: Acute cytolytic hepatitis in an elderly patient: case report

(Source: Reactions)

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  Allopurinol: Gingival ulcer: case report

(Source: Reactions)

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  Low-dose azathioprine or mercaptopurine in combination with allopurinol can bypass many adverse drug reactions in patients with inflammatory bowel disease

Conclusion The combined experience from our centres is the largest reported experience of this combination therapy strategy in IBD, and the first to provide evidence for benefit in thiopurine and allopurinol co-therapy to avoid non-hepatitic adverse drug reactions. (Source: Alimentary Pharmacology and Therapeutics)

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  Effect of blind treatment on stone disease

Conclusions regarding the utility of drugs in the process of stone formation were made. The values were compared with those of patients not on medication and considering laboratory standards. Of the 350 patients studied, 96 patients were consuming potassium citrate in different doses, 50 were consuming allopurinol, 44 cystone, 27 potassium citrate + magnesium, 25 calcury, 24 rowatinex, 21 ayurvedic drugs, 17 dystone, 17 homeopathic medicines and 17 other drugs. The longest duration of compliance was for cystone—2.5 years. All other drugs were stopped by the patients themselves due to recurrence of symptoms. As much as 93% of the patients did not feel that there was any significant relief of symptoms. The side effects which prompted the patients to stop medicine were ...

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  Effect of blind treatment on stone disease.

Conclusions regarding the utility of drugs in the process of stone formation were made. The values were compared with those of patients not on medication and considering laboratory standards. Of the 350 patients studied, 96 patients were consuming potassium citrate in different doses, 50 were consuming allopurinol, 44 cystone, 27 potassium citrate + magnesium, 25 calcury, 24 rowatinex, 21 ayurvedic drugs, 17 dystone, 17 homeopathic medicines and 17 other drugs. The longest duration of compliance was for cystone-2.5 years. All other drugs were stopped by the patients themselves due to recurrence of symptoms. As much as 93% of the patients did not feel that there was any significant relief of symptoms. The side effects which prompted the patients to stop medicine were gastro intestinal upset...

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  Treatment of New World cutaneous leishmaniasis: a systematic review with a meta-analysis

Source: DARE Area: Evidence > Disease Focused Reviews CRD Summary: The authors concluded that although pentavalent antimonials were still effective for patients in Latin America with cutaneous leishmaniasis, cure rates were similar for pentamidine. Evidence appeared to support the authors' conclusions, but differences between studies and the small number of studies that directly compared treatments may have limited the strength of the evidence. [The included studies evaluated pentavalent antimonials, pentamidine, paromomycin (including topical and intravenous formulations) and other drugs including allopurinol and imidazole drugs. ] CRD Commentary: The review question was clearly stated and inclusion criteria defined for intervention, participants and outcome. Several relevant source...

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  Influence on Energy Kinetics and Histology of Different Preservation Solutions Seen During Cold Ischemia in the Liver

Conclusions: These results implied that cold ischemia in the liver is characterized by dynamic biochemical changes coincident with pathological injury which are initiated from the time of organ perfusion and influenced by the choice of the perfusion fluid. Allopurinol in UW and LS appears to be critical. We hypothesized that it may also affect the degree of subsequent reperfusion injury. The data supported the assertion that LS offerred improved preservation over UW, adding to the impetus to shorten ischemic times in clinical transplantation. (Source: Transplantation Proceedings)

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  Febuxostat or Allopurinol for Gout? It Depends

Estimates of how many patients with gout should be treated with febuxostat range from just 5% to millions, according to experts interviewed for this article. Febuxostat is clearly the second-line agent behind allopurinol, those same experts agreed. Allopurinol retains the top spot because of its substantially larger and longer track record and its dramatically lower cost. (Source: Internal Medicine News)

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  It May Be Time to Reconsider Allopurinol Dosing for Gout

PHILADELPHIA — A new study confirms what rheumatologists already know: Some patients with gout fail to achieve adequate reductions in serum urate levels with recommended levels of allopurinol. (Source: Internal Medicine News)

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  Vascular responses to nitrite are mediated by xanthine oxidoreductase and mitochondrial aldehyde dehydrogenase in the rat.

Authors: Golwala NH, Hodenette C, Murthy SN, Nossaman BD, Kadowitz PJ Sodium nitrite has been shown to have vasodilator activity in experimental animals and in human subjects. However, the mechanism by which nitrite anion is converted to vasoactive nitric oxide (NO) is uncertain. It has been hypothesized that deoxyhemoglobin, xanthine oxidoreductase, mitochondrial aldehyde dehydrogenase, and other heme proteins can reduce nitrite to NO, but studies in the literature have not identified the mechanism in the intact rat, and several studies report no effect of inhibitors of xanthine oxidoreductase. In the present study, the effects of the xanthine oxidoreductase inhibitor allopurinol and the mitochondrial aldehyde dehydrogenase inhibitor cyanamide on decreases in mean systemic arterial pr...

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  A survey on the management of gout in Malaysia

Conclusions: In Malaysia, anti-inflammatory agents are most commonly used for the treatment of acute and chronic gout, with corticosteroid usage at a low level. However, there are areas of concern regarding the diagnosis of gout and the usage of ALLO which are not consistent with current guidelines. (Source: APLAR Journal of Rheumatology)

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  Allopurinol/prednisone: Stevens-Johnson syndrome and other toxicities: case report

(Source: Reactions)

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  Some Gout Patients Need More Allopurinol

PHILADELPHIA — Increasing the dose of allopurinol above the recommended dose can lower serum urate to target levels in gout patients who do not respond to recommended doses, said Dr. Lisa Stamp, who presented her results at the annual meeting of the American College of Rheumatology. (Source: Family Practice News)

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  Update on gout and hyperuricemia

There have been recent advances in the understanding of underlying mechanisms and treatment of gout and chronic hyperuricemia, making this an important time to review the current state of the disease. The goal of this article is to provide a practical review of the current standard of care as well as discuss some new developments in the management. There is an increasing prevalence of gout and hyperuricemia worldwide. Gout confers a significant individual and societal burden and is often under-treated. Appropriate diagnosis and treatment of acute gout should be followed by aggressive and goal-oriented treatment of hyperuricemia and other risk factors. Allopurinol remains as a first-line treatment for chronic hyperuricemia, but uricosuric agents may also be considered in some patients. Febu...

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  ASN: Febuxostat Works in Gout Patients with Renal Impairment (CME/CE)

SAN DIEGO (MedPage Today) -- In patients with gout and preexisting mild to moderate renal impairment, febuxostat (Uloric) is more effective and as safe as allopurinol, the gold standard gout treatment, researchers found. (Source: MedPage Today Meeting Coverage)

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  Correction

The article “Febuxostat, Allopurinol Jockey for Role in Gout” (October 2009, p. 20) misrepresented the views of Dr. Naomi Schlesinger. She does not think that all gout patients with hyperuricemia and renal disease should be on febuxostat. She does not advise avoiding allopurinol altogether in patients with renal failure. We regret the error. (Source: Rheumatology News)

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  Allopurinol's Top Dose May Need To Be Increased

PHILADELPHIA — A new study confirms what rheumatologists already know: Some patients with gout fail to achieve adequate reductions in serum urate levels with recommended levels of allopurinol. (Source: Rheumatology News)

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  Allopurinol for Angina Improves Exercise Time

BARCELONA — Allopurinol treatment for 6 weeks significantly improved symptoms of chronic, stable angina in a randomized, placebo-controlled, crossover study of 60 patients. Allopurinol administered at labeled dosages produced three significant improvements during an exercise treadmill test, which were the study's primary end points: increased total exercise time, increased time to ST-segment depression, and increased time to angina, Dr. Awsan Noman said at the annual congress of the European Society of Cardiology. (Source: Cardiology News)

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  Allopurinol's Top Dose May Need an Increase

PHILADELPHIA — A new study confirms what rheumatologists often see in practice: Some patients with gout fail to achieve adequate reductions in serum urate levels with recommended levels of allopurinol. (Source: Rheumatology News International)

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  Allopurinol: Drug-induced hypersensitivity syndrome in an elderly patient: case report

(Source: Reactions)

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  Maternal Allopurinol During Fetal Hypoxia Lowers Cord Blood Levels of the Brain Injury Marker S-100B.

Page: 705DOI: 10.1097/01.ogx.0000361378.74763.4bAuthors: Torrance, Helen L.; Benders, Manon J.; Derks, Jan B.; Rademaker, Carin M. A.; Bos, Arie F.; Van Den Berg, Paul; Longini, Mariangela; Buonocore, Giuseppe; Venegas, Maria Elena; Baquero, Hernando; Visser, Gerard H. A.; Van Bel, Frank (Source: Obstetrical & Gynecological Survey)

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  Vasomotor dysfunction in the thoracic aorta of Marfan syndrome is associated with accumulation of oxidative stress.

Authors: Yang HH, van Breemen C, Chung AW We have described that the progression of thoracic aortic aneurysm in Marfan syndrome is accompanied with aortic vascular dysfunction. In the present study, w hypothesized that the impaired contractile function and endothelial-dependent relaxation could be resulted from oxidative stress in the thoracic aorta. Adrenergic contraction and cholinergic relaxation of thoracic aortae from mice (n=40; age=3, 6, 9months) heterozygous for FBN1 allele (Fbn1C(1039G/+)), a well-defined model of Marfan syndrome, were compared with those from control (n=40). The aortic 8-isoprostane level, an oxidative stress marker, was 32-50% greater in the Marfan group than in the control. Pre-incubation with superoxide dismutase (SOD) improved the phenylephrine-induced co...

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  ACR: Allopurinol Sensitivity More Likely in Patients with Renal Problems (CME/CE)

PHILADELPHIA (MedPage Today) -- Hypersensitivity to the anti-uricemic drug allopurinol, often leading to acute kidney failure, is up to three times as common in patients who already suffer renal impairment, according to research presented here. (Source: MedPage Today Meeting Coverage)

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  Higher doses of allopurinol may benefit gout patients

New research suggests that people with gout may benefit from taking more than the recommended dose of allopurinol, a drug that helps to lower the level of urate in the blood. (Source: Arthritis Research Campaign)

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  Health News of the Day

is a daily summary made from the selected links I post on Twitter. It is in a bullet points format with links to the original sources which include 350 RSS feeds that produce about 2,500 items per day:Meta-analysis finds 6-13% increased risk of diabetes in those who received statin therapy http://bit.ly/3iX7vd -- Although statin therapy greatly lowers vascular risk, relationship of statins to incident diabetes remains uncertain http://bit.ly/3BFQv5 -- "Statin-Induced Diabetes" - the headline of this editorial may be a bit premature considering the available evidence http://bit.ly/15L33KDiabetes drug liraglutide contains a satiety hormone that helps decrease appetite, it also lowers blood pressure. Liraglutide helps obese adults (without diabetes) lose more weight than the weight-loss drug...

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  ACR: Pump Up the Allopurinol to Prevent Gout (CME/CE)

PHILADELPHIA (MedPage Today) -- Going beyond the recommended dosing of allopurinol (Zyloprim) to treat patients with gout may help prevent recurrence safely, researchers contended here. (Source: MedPage Today Meeting Coverage)

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  Risk Factors for CKD in Persons With Kidney Stones: A Case-Control Study in Olmsted County, Minnesota

Conclusion: As in the general population, hypertension and diabetes are associated with increased risk of CKD in patients with kidney stones. However, other unique predictors were identified in patients with kidney stones that increased the possibility of CKD. Further studies are warranted to elucidate the nature of these associations. (Source: American Journal of Kidney Diseases)

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  A Case of Gingival Ulcer Thought to Be Caused by Allopurinol

Allopurinol is an oral therapeutic drug for hyperuricemia that has been used widely in clinical practice since 1963. Dermatitis develops at a frequency of 2% as an adverse drug reaction, and fever, headache, impaired glucose tolerance, and gastrointestinal disorder also occur in about 10%. A severe adverse drug reaction, allopurinol hypersensitivity syndrome, in which skin disorders, such as Stevens-Johnson syndrome and toxic epidermal necrosis, are accompanied by renal failure, hepatitis, vasculitis, and eosinophilia rarely occurs. Several cases regarding oral mucosal ulcer have been reported, but there has been no detailed report. We encountered a case of gingival ulcer attributable to this drug. We outline the case and present a literature review. (Source: Journal of Oral and Maxillofac...

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  Zyloric 100mg, 300mg tablets (allopurinol) - Revised SPC

Source: eMC (electronic Medicines Compendium) Area: Other Library Updates > SPC Changes Revised SPC to include updates to section 4.4 Special warnings and precautions for use and 4.8 Undesirable effects. Inclusion of Stevens-Johnson syndrome and toxic epidermal necrolysis. (Source: NeLM - SPC Changes)

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  Allopurinol: DRESS syndrome in an elderly patient: case report

(Source: Reactions)

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  [Crystal-induced activation of the inflammasome: gout and pseudogout.]

Authors: Winzer M, Tausche AK, Aringer M Crystals in tissues lead the innate immune system to the same kind of acute response seen with pathogens. Via activation of the inflammasome, interleukin-1 (IL-1) is released, which upregulates mediators such as cyclooxygenase, tumor necrosis factor, and IL-8 and induces an acute granulocytic inflammation. Therefore, in addition to nonsteroidal anti-inflammatory drugs (NSAIDs), steroids, and colchicine, IL-1 blockers appear to be effective. Large clinical trials have already been initiated. Such an approach could constitute a valuable alternative for patients with contraindications or insufficient response to NSAIDs. After the attack has subsided, control of uric acid metabolism is central. At least several of the responsible urate transporters ...

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  Allopurinol Aids Patients With Stable Angina

BARCELONA — Allopurinol treatment for 6 weeks significantly improved symptoms of chronic, stable angina in a randomized, placebo-controlled, crossover study of 60 patients. Allopurinol administered at labeled dosages produced three significant improvements during an exercise treadmill test, which were the study's primary end points: increased total exercise time, increased time to ST segment depression, and increased time to angina, Dr. Awsan Noman said at the annual congress of the European Society of Cardiology. (Source: Family Practice News)

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  Effect of allopurinol versus urate oxidase on methotrexate pharmacokinetics in children with newly diagnosed acute lymphoblastic leukemia

Allopurinol and urate oxidase are both effective in preventing or treating hyperuricemia during remission induction therapy for lymphoid malignancies, but to the authors' knowledge, their effects on concomitant anticancer drug therapy have not been compared.The authors compared plasma methotrexate pharmacokinetics in pediatric patients with newly diagnosed acute lymphoblastic leukemia who received concomitant allopurinol (n = 20) versus those treated with nonrecombinant or recombinant urate oxidase (n = 96) during high-dose methotrexate administration before conventional remission induction therapy.The minimum plasma concentration of uric acid was significantly (P < .0001) lower after urate oxidase treatment than the concentration after allopurinol treatment. Methotrexate clearance was sig...

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  Drug dosage protocol for calcium oxalate stone.

The objective of this study is to identify the most effective directed medical treatment of urinary stones. The drug dose adjustment was based on clinical, radiological, biochemical, and microscopic parameters. 444 patients with proved calcium oxalate stone disease who were getting a combination of allopurinol and pyridoxine for a minimum period of 36 months were enrolled in this prospective study. The dosage schedule of these patients was recorded. Dosage adjustment was made depending upon the various clinical, biochemical, microscopic, and radiological changes during the study period. The dosage schedules were in six categories, namely very high dose chemotherapy (VHDC), i.e. allopurinol 600 mg/day and pyridoxine 240 mg/day, high-dose chemotherapy (HDC), i.e. allopurinol 300 mg/day and p...

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  Drug dosage protocol for calcium oxalate stone

The objective of this study is to identify the most effective directed medical treatment of urinary stones. The drug dose adjustment was based on clinical, radiological, biochemical, and microscopic parameters. 444 patients with proved calcium oxalate stone disease who were getting a combination of allopurinol and pyridoxine for a minimum period of 36 months were enrolled in this prospective study. The dosage schedule of these patients was recorded. Dosage adjustment was made depending upon the various clinical, biochemical, microscopic, and radiological changes during the study period. The dosage schedules were in six categories, namely very high dose chemotherapy (VHDC), i.e. allopurinol 600 mg/day and pyridoxine 240 mg/day, high-dose chemotherapy (HDC), i.e. allopur...

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  Pharmacological interventions v no pharmacological intervention for ischaemia reperfusion injury in liver resection performed under vascular control

Published October 2009 Summary: Elective liver surgery undertaken for a variety of reasons may require occlusion of the blood supply to the liver in order to reduce bleeding from the cut liver surface. This temporary blood supply interruption can cause liver damage for a variety of reasons. In experimental studies many drugs have shown some promise in decreasing liver damage caused by the occluded blood supply. We identified a total of 15 randomised trials evaluating 11 different pharmacological interventions (methylprednisolone, multivitamin antioxidant infusion, vitamin E infusion, amrinone, prostaglandin E1, pentoxifylline, mannitol, trimetazidine, dextrose, allopurinol, and OKY 046). All trials had risk of bias ('systematic errors') and risk of play of chance ('random errors'). There w...

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  Pharmacological interventions v no pharmacological intervention for ischaemia reperfusion injury in liver resection performed under vascular control

Published October 2009 Summary: Elective liver surgery undertaken for a variety of reasons may require occlusion of the blood supply to the liver in order to reduce bleeding from the cut liver surface. This temporary blood supply interruption can cause liver damage for a variety of reasons. In experimental studies many drugs have shown some promise in decreasing liver damage caused by the occluded blood supply. We identified a total of 15 randomised trials evaluating 11 different pharmacological interventions (methylprednisolone, multivitamin antioxidant infusion, vitamin E infusion, amrinone, prostaglandin E1, pentoxifylline, mannitol, trimetazidine, dextrose, allopurinol, and OKY 046). All trials had risk of bias ('systematic errors') and risk of play of chance ('random errors'). There w...

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  Metabolism of ethanol to acetaldehyde and increased susceptibility to oxidative stress could play a role in the ovarian tissue cell injury promoted by alcohol drinking

In this study, we analyzed the possibility that part of those effects were mediated through alterations of ovarian function related to ethanol oxidation to acetaldehyde occurring in situ. Biotransformation in the rat ovary cytosolic fraction was partially inhibited by allopurinol, suggesting the participation of xanthine oxidoreductase in the process. Microsomal pathway was of enzymatic nature, requiring nicotinamide adenine dinucleotide phosphate-oxidase (NADPH), sensitive to oxygen and significantly inhibited by sodium diethyldithiocarbamate, 4-methylpyrazole and diphenyleneiodonium. Aldehyde dehydrogenase activity was detected by histochemistry in the ovarian tissue, in the strome surrounding the follicle while no alcohol dehydrogenase was detected. However, biochemical determination of...

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  Seasonality and trends in the incidence and prevalence of gout in England and Wales 1994-2007 [Clinical and epidemiological research]

Conclusion: The incidence of gout is seasonal. This has implications for the management of patients who currently have gout, and for those who are at risk of future attacks. The decreasing trend in the incidence of acute attacks suggests that patient management is improving. (Source: Annals of the Rheumatic Diseases)

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  Seasonality and trends in the incidence and prevalence of gout in England and Wales 1994-2007

Conclusion: The incidence of gout is seasonal. This has implications for the management of patients who currently have gout, and for those who are at risk of future attacks. The decreasing trend in the incidence of acute attacks suggests that patient management is improving. (Source: Annals of the Rheumatic Diseases)

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  Meta-analysis of prophylactic allopurinol use in post-endoscopic retrograde cholangiopancreatography pancreatitis

A structured abstract written by CRD reviewers. The abstract was published on 7 October 2009 from an original article published in 2008. (Source: Gastroenterology and Liver Diseases Specialist Library - Pancreas)

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  Meta-analysis of prophylactic allopurinol use in post-endoscopic retrograde cholangiopancreatography pancreatitis

A structured abstract written by CRD reviewers. The abstract was published on 7 October 2009 from an original article published in 2008. (Source: Gastroenterology and Liver Diseases Specialist Library - Diagnostic procedures)

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  Allopurinol-Induced DRESS Syndrome in an Adolescent Patient

Abstract: A 16-year-old male patient, with a history of essential hypertension enrolled in an experimental drug protocol using allopurinol, presented to our emergency department with a 10-day history of fever. Initial laboratory evaluation revealed leukocytosis, eosinophilia, and transaminitis. After extensive work-up and exclusion of infectious and oncologic etiologies, the diagnosis of allopurinol-induced drug reaction and eosinophilia with systemic symptoms syndrome was carried out. The patient responded to administration of IV methylprednisolone, with complete resolution of symptoms and improvement of laboratory abnormalities. This case represents the first report of allopurinol-induced drug reaction and eosinophilia with systemic symptoms syndrome in a pediatric patient. (Source: Pedi...

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  Febuxostat, Allopurinol Jockey for Role in Gout

Estimates of how many patients with gout should be treated with febuxostat range from just 5% to millions, according to experts interviewed for this article. What is not debatable 6 months after febuxostat went on the U.S. market is that it's clearly the second-line agent behind allopurinol, those same experts agreed. Allopurinol retains the top spot because of its substantially larger and longer track record and its dramatically lower cost. (Source: Family Practice News)

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  Febuxostat, Allopurinol Jockey for Role in Gout: Allopurinol remains the first-line agent in gout treatment, despite issues of kidney clearance.

Estimates of how many patients with gout should be treated with febuxostat range from just 5% to millions, according to experts interviewed for this article. What is not debatable 6 months after febuxostat went on the U.S. market is that it's clearly the second-line agent behind allopurinol, the experts agreed. Allopurinol retains the top spot because of its substantially larger and longer track record and its dramatically lower cost. (Source: Rheumatology News)

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  The effects of lowering uric acid levels using allopurinol on markers of metabolic syndrome in end-stage renal disease patients: a pilot study.

CONCLUSION: Novel findings of our study suggest that lowering uric acid in ESRD patients may help to reduce the risk of cardiovascular disease in this population. It should be noted than an increase in triglycerides may mitigate the reduction in risk. PMID: 19819789 [PubMed - in process] (Source: Anadolu Kardiyol Der...)

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  Immunotherapy with the saponin enriched-Leishmune((R)) vaccine versus immunochemotherapy in dogs with natural canine visceral leishmaniasis.

Authors: Borja-Cabrera GP, Santos FN, Santos FB, Trivellato FA, Kawasaki JK, Costa AC, Castro T, Nogueira FS, Moreira MA, Luvizotto MC, Palatnik M, Palatnik-de-Sousa CB Leishmune((R)), the first licensed vaccine for prophylaxis against canine visceral leishmaniasis (CVL) and is also immunotherapeutic when used with double saponin adjuvant concentration. The Leishmune((R)) therapeutic vaccine was assessed for immunotherapy (IT) in 31 infected dogs and for immunochemotherapy (ICT) in combination with allopurinol or amphotericinB/allopurinol, in 35 dogs. Compared to infected untreated control dogs, at month 3, both treatments increased the proportion of dogs showing intradermal response to Leishmania antigen to a similar extent (from 8 to 67%, in the IT and to 76%, in the ICT groups), and...

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  Allopurinol, rutin, and quercetin attenuate hyperuricemia and renal dysfunction in rats induced by fructose intake: renal organic ion transporter involvement

Fructose consumption has been recently related to an epidemic of metabolic syndrome, and hyperuricemia plays a pathogenic role in fructose-induced metabolic syndrome. Fructose-fed rats showed hyperuricemia and renal dysfunction with reductions of the urinary uric acid/creatinine ratio and fractional excretion of uric acid (FEur), as well as other features of metabolic syndrome. Lowering serum uric acid levels with allopurinol, rutin, and quercetin increased the urinary uric acid/creatinine ratio and FEur and attenuated other fructose-induced metabolic abnormalities in rats, demonstrating that hyperuricemia contributed to the deficiency of renal uric acid excretion in this model. Furthermore, we found that fructose upregulated the expression levels of rSLC2A9v2 and renal-specific transporte...

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  Antioxidant therapy in the management of acute, chronic and post-ERCP pancreatitis: a systematic review.

In conclusion, the present data do not support a benefit of antioxidant therapy alone or in combination with conventional therapy in the management of AP, CP or PEP. Further double blind, randomized, placebo-controlled clinical trials with large sample size need to be conducted. PMID: 19777606 [PubMed - in process] (Source: World Journal of Gastroenterology : WJG)

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  Gout Drug May Lower Blood Pressure

A study shows allopurinol helps fight hypertension for people on a high-sugar diet. WebMD Health News (Source: Medscape Medical News Headlines)

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  AHA/HBP: Fructose Linked to Hypertension, Metabolic Effect

In adult men, the metabolic effects of high fructose intake may be mitigated by the uric acid-lowering effects of allopurinol, according to research presented this week at the American Heart Association's 63rd High Blood Pressure Research Conference, held from Sept. 23 to 26 in Chicago. (Source: Modern Medicine)

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  Allopurinol Lowers Fructose-Triggered Hypertension (CME/CE)

A diet high in fructose can increase uric acid levels, but allopurinol may help lower the resulting high blood pressure, researchers say. (Source: MedPage Today Cardiovascular)

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  Allopurinol/imatinib: Stevens-Johnson syndrome in an elderly patient: case report

(Source: Reactions)

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  What Are Some Common Presentations for Inborn Errors of Metabolism?

Discussion Each inborn errors of metabolism (IEM) by itself is often rare but taken as a whole, IEM are common. IEM often present in the newborn or infancy periods but can present at any time including adulthood. The genetic defect often causes a problem in the catabolism or synthesis of carbohydrates, fats, or proteins. The defect causes a blockage in the metabolic pathway with intermediate molecules accumulating (often toxic accumulations) before the blockage and metabolites after the blockage being scarce (inadequate energy production/utilization). Diet and stresses including surgery, trauma, and illness often can trigger intermittent decompensation. Common IEM include: Carbohydrate metabolism - carbohydrate intolerance, geoneogenic and glycogenolytic disorders, glycogenic storage def...

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  Secreted phospholipase A2-IIA modulates key regulators of proliferation on astrocytoma cells

In this study, we used human astrocytoma 1321N1 cells to investigate the key molecules mediating sPLA2-IIA-induced cell proliferation. We found that sPLA2-IIA promoted reactive oxygen species (ROS) accumulation, which was abrogated in the presence of allopurinol and DPI, but not by rotenone, discarding mitochondria as a ROS source. In addition, sPLA2-IIA triggered Ras and Raf-1 activation, with kinetics that paralleled ERK phosphorylation, and co-immunoprecipitation assays indicated an association between Ras, Raf-1 and ERK. Additionally, Akt, p70 ribosomal protein S6 kinase, and S6 ribosomal protein were also phosphorylated upon sPLA2-IIA treatment, effect that was abrogated by N-acetylcysteine or LY294002 treatment indicating that ROS and phosphatidylinositol 3 kinase are upstream signal...

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  Preservation of cardiac contractility after long-term therapy with oxypurinol in post-ischemic heart failure in mice.

In this study, we tested the sustainability of this enhanced contraction associated with decreased oxidative damage over an extended time. Mice were divided into three groups: sham-operated control, myocardial infarction-heart failure (MI-HF), and oxypurinol-treated heart failure (Oxy-HF). After 9 -11months, echocardiography showed that mice treated with oxypurinol (1mM in drinking water) had significantly higher left ventricle fractional contraction and fractional wall thickening during systole than did mice in the MI-HF group (left ventricle fractional contraction: 28.4+/-2.2% vs. 19.9+/-2.3%, P<0.05; left ventricle fractional wall thickening : 45.0+/-4.0% vs. 23.5+/-2.0%, P<0.05). Left ventricular diastolic dimension, however, remained enlarged (0.50+/-0.04 vs. 0.54+/-0.05cm, not ...

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  Allopurinol: a necessary evil.

Authors: Lim AY, Teng GG PMID: 19787189 [PubMed - in process] (Source: Singapore Medical Journal)

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  Antral ulcers induced by alendronate, a nitrogen-containing biphophonate, in rat stomachs - prophylactic effect of rebamipide.

Authors: Ohashi Y, Aihara E, Takasuka H, Takahashi K, Takeuchi K We demonstrated the development of antral ulcers induced in rats by alendronate and investigated the pathogenic factors involved in this model. Animals fasted for 18 h were given alendronate p.o., and then re-fed normally and killed on various days up to 7 days later. Alendronate caused non-hemorrhagic damage in both the corpus and antrum of fasted rats, but after refeeding for 3 days the lesions in the corpus healed completely, while those in the antrum developed into large ulcers with increased vascular permeability. The development of antral ulcers was accompanied by an increase in MPO activity and lipid peroxidation as well as a decrease in SOD activity and GSH content in the mucosa. Histologically, the damage did not...

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  Allopurinol: Toxic epidermal necrolysis in a child: case report

(Source: Reactions)

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  Allopurinol/paclitaxel: First report of gout with paclitaxel and first report of an interaction between allopurinol and paclitaxel?: case report

(Source: Reactions)

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  Combination of Captopril and Allopurinol Retards Fructose-Induced Metabolic Syndrome.

Conclusion: A high fructose diet can induce metabolic syndrome even in the setting of caloric restriction. Captopril and allopurinol synergistically reduce features of the metabolic syndrome, especially hypertension, insulin resistance and dyslipidemia. Combination allopurinol and ACE inhibitor therapy might provide a superior means to prevent diabetes and cardiovascular disease. PMID: 19696478 [PubMed - as supplied by publisher] (Source: American Journal of Nephrology)

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  Exercise Activation of Muscle Peroxisome Proliferator-activated Receptor gamma Co-activator 1 alpha Signaling is Redox Sensitive.

The objectives of the present study were (1) to investigate whether PGC-1alpha pathway could be activated by a single bout of anaerobic exercise in rats, wherein a main portion of ROS was generated via the cytosolic xanthine oxidase (XO); and (2) to examine whether allopurinol (ALP), a specific XO inhibitor, would attenuate PGC-1alpha expression and signaling due to decreased ROS generation. Female Sprague-Dawley rats were randomly divided into three groups: (1) subjected to sprinting on treadmill at 35 m/min, 15% grade for 3 min followed by 3 min slow running at 15 m/min, 0% grade, repeated until exhaustion (88 +/-4 min; Exer; N=9); (2) subjected to the same exercise protocol (88 +/-4 min) but injected with two doses of ALP (0.4 mmol/kg, i.p.) 24 and 1 h prior to experiment (Exer+ALP, N=9...

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  Meta-analysis - allopurinol in the prevention of postendoscopic retrograde cholangiopancreatography pancreatitis

A structured abstract written by CRD reviewers. The abstract was published on 15 July 2009 from an original article published in 2008. (Source: Gastroenterology and Liver Diseases Specialist Library - Diagnostic procedures)

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  Meta-analysis - allopurinol in the prevention of postendoscopic retrograde cholangiopancreatography pancreatitis

A structured abstract written by CRD reviewers. The abstract was published on 15 July 2009 from an original article published in 2008. (Source: Gastroenterology and Liver Diseases Specialist Library - Diagnostic procedures)

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  Meta-analysis - allopurinol in the prevention of postendoscopic retrograde cholangiopancreatography pancreatitis

A structured abstract written by CRD reviewers. The abstract was published on 15 July 2009 from an original article published in 2008. (Source: Gastroenterology and Liver Diseases Specialist Library - Pancreas)

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  Therapeutic alternatives in a patient with DRESS syndrome induced by allopurinol.

Authors: Calogiuri GF, Satriano F, Muratore L, Valacca A, Nettis E, Di Leo E, Vacca A PMID: 19639739 [PubMed - in process] (Source: Journal of Investigational Allergology & Clinical Immunology)

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  Effects of allopurinol on uric acid concentrations, xanthine oxidoreductase activity and oxidative stress in broiler chickens.

Authors: Carro MD, Falkenstein E, Radke WJ, Klandorf H The purpose of this study was to determine the effects of allopurinol (AL) on xanthine oxidoreductase (XOR) activity and uric acid (UA) levels in chickens. Thirty 5-week-old broilers were divided into three groups and fed 0 (control), 25 (AL25) or 50 (AL50) mg AL per kg of body mass for 5 weeks. Chicks were weighed twice weekly and leukocyte oxidative activity (LOA) and plasma purines levels were determined weekly in five birds per group. Chicks were sacrificed after 2 or 5 weeks, and samples from tissues were taken for analysis of XOR activity. Plasma UA concentrations were lower (P<0.001) and xanthine and hypoxanthine concentrations were greater (P<0.001) in AL25 and AL50 birds compared to controls, whereas no differences (...

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  NADPH oxidase-derived reactive oxygen species in skeletal muscle modulates the exercise pressor reflex

Muscle metabolic by-products during exercise, such as K+, lactic acid, ATP, H+, and phosphate, are well established to be involved in the reflex cardiovascular response to static muscle contraction. However, the role of muscle reactive oxygen species (ROS), a metabolic by-product during muscle contraction, in the exercise pressor reflex (EPR) has not been investigated in detail. In the present study, we evaluated the role of muscle ROS in the EPR in a decerebrate rat model. We hypothesized that muscle NADPH oxidase-derived ROS contributes to sensitization of the EPR. Thus the rise in blood pressure and heart rate in response to a 30-s static contraction induced by electrical stimulation of L4/L5 ventral roots was compared before and after hindlimb arterial infusion of the redox agents: die...

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  Allopurinol mouth rinse for prophylaxis of fluorouracil-induced mucositis

PANAHI Y., ALA S., SAEEDI M., OKHOVATIAN A., BAZZAZ N. & NAGHIZADEH M.M. (2009) European Journal of Cancer CareAllopurinol mouth rinse for prophylaxis of fluorouracil-induced mucositis To prepare and evaluate an allopurinol mouth rinse for prophylaxis of fluorouracil-induced mucositis, 33 patients with malignant disorders, who were going to receive 5-fluorouracil containing chemotherapy, were enrolled in a placebo-controlled double-blinded randomized clinical trial. Allopurinol mouthwash (1 mg/ml) or placebo was administered 1, 2 and 3 h after chemotherapy and three consecutive nights. A questionnaire consisting of demographic parameters, medical status, quality of life survey and mucosal injury scoring table (based on World Health Organization scales for mucositis) was completed for each ...

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  Effects of allopurinol on cardiac function and oxidant stress in chronic intermittent hypoxia

Conclusion  ALLO is associated with improvement in CIH-associated oxidant stress, myocardial dysfunction, and apoptosis in rats. Content Type Journal ArticleCategory Original ArticleDOI 10.1007/s11325-009-0279-xAuthors Antoinette L. Williams, University of South Carolina School of Medicine Department of Medicine Columbia SC USALing Chen, University of Maryland Division of Pulmonary and Critical Care Medicine, Department of Medicine Baltimore MD 21201 USASteven M. Scharf, University of Maryland Division of Pulmonary and Critical Care Medicine, Department of Medicine Baltimore MD 21201 USA Journal Sleep and BreathingOnline ISSN 1522-1709Print ISSN 1520-9512 (Source: Sleep and Breathing)

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  Effect of lowering uric acid on renal disease in the type 2 diabetic db/db mice

In conclusion, hyperuricemia has a pathogenic role in the mild tubulointerstitial injury associated with diabetic nephropathy but not glomerular damage in db/db mice. Lowering uric acid may reduce tubulointerstitial injury in diabetes. (Source: AJP: Renal Physiology)

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  Blood reflects tissue oxidative stress depending on biomarker and tissue studied.

In conclusion, this study suggests that a combination of markers measured in blood provide a reliable indication about the redox status in skeletal muscle, heart and liver. PMID: 19616614 [PubMed - as supplied by publisher] (Source: Free Radical Biology and Medicine)

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  [Clinical and epidemiological research] Opportunities for improving medication use and monitoring in gout

Conclusions: Important variations were found in patterns of medication use and monitoring in patients with gout with suboptimal care. A concerted effort is needed to improve the overall care of gout. (Source: Annals of the Rheumatic Diseases)

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  Allopurinol, rutin and quercetin attenuate hyperuricemia and renal dysfunction in rats induced by fructose intake: renal organic ion transporter involvement.

Authors: Hu QH, Wang C, Li JM, Zhang DM, Kong LD Fructose consumption has been recently related to epidemic of metabolic syndrome and hyperuricemia plays a pathogenic role in fructose-induced metabolic syndrome. Fructose-fed rats showed hyperuricemia and renal dysfunction with reductions of urinary uric acid/creatinine ratio and fractional excretion of uric acid (FEUA), as well as other features of metabolic syndrome. Lowing serum uric acid levels with allpourinol, rutin and quercetin increased urinary uric acid/creatinine ratio and FEUA, and attenuated fructose-induced other metabolic abnormalities in rats, demonstrating that hyperuricemia contributed to the deficiency of renal uric acid excretion in this model. Furthermore, we found that fructose up-regulated the expression levels of...

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  Effects of allopurinol on cardiac function and oxidant stress in chronic intermittent hypoxia.

CONCLUSION: ALLO is associated with improvement in CIH-associated oxidant stress, myocardial dysfunction, and apoptosis in rats. PMID: 19603215 [PubMed - as supplied by publisher] (Source: Sleep and Breathing)

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  Methylene Blue Attenuates Pancreas Ischemia–Reperfusion (IR)-Induced Lung Injury: A Dose Response Study in a Rat Model

Conclusions  Ex vivo pancreas IR-induced ALI is preventable by MB, although at a narrow dose range. Content Type Journal ArticleCategory Original ArticleDOI 10.1007/s11605-009-0945-0Authors Avi A. Weinbroum, Tel-Aviv University Animal Research Laboratory, Tel Aviv Sourasky Medical Center and the Sackler Faculty of Medicine 6 Weizman Street Tel Aviv 64239 Israel Journal Journal of Gastrointestinal SurgeryOnline ISSN 1873-4626Print ISSN 1091-255X (Source: Journal of Gastrointestinal Surgery)

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  Uric acid levels and outcomes from coronary artery bypass grafting: Is it the chicken or the egg?

Elevated uric acid levels are associated with risk factors common to patients who require coronary artery bypass graft (CABG) surgery. In this edition of the Journal, Hills and coworkers now propose that hyperuricemia may also be an independent risk factor for adverse events after CABG surgery. In this single-center, retrospective series, the authors have shown that patients with hyperuricemia undergoing isolated, nonemergency surgery have a higher incidence of mortality over a 3-year period. Hyperuricemia has been associated with adverse cardiovascular events in patients with atherosclerotic disease. Furthermore, it has been shown that cardiovascular events are decreased in patients undergoing CABG who receive allopurinol in the perioperative period. Thus, this study would be novel if the...

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  Involvement of NADPH Oxidase and Protein Kinase C in Endothelin-1 Induced Superoxide Production in Retinal Microvessels.

We examined whether endothelin-1 (ET-1) increases the formation of superoxide anions in retinal microvessels. Freshly isolated retinal microvessels from rats were exposed to ET-1 (100nM), and the intracellular superoxide formation in the retinal pericytes was assessed semi-quantitatively by time-lapse fluorometric analyses using hydroethidine. The receptor mechanisms were determined by BQ-123 and BQ-788, receptor antagonists for ET(A) and ET(B) receptors respectively, and also by IRL-1620, a selective agonist for ET(B) receptors. In addition, the changes induced by adding apocynin (10muM), myr-PKC (1.0muM), allopurinol (100muM), rotenone (10muM) or L-NAME (100 muM) with ET-1 were evaluated. Microvessels were incubated with phorbol 12-myristate 13-acetate (PMA, 10nM), a protein kinase C (PK...

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  Present situation and new strategies for Chagas disease chemotherapy: a proposal.

Authors: Coura JR Treatments for Chagas disease have been administered since the first attempts by Mayer & Rocha Lima (1912, 1914) and up to the drugs currently in use (nifurtimox and benznidazole), along with potential drugs such as allopurinol and first, second and third-generation antifungal agents (imidazoles and triazoles), in separate form. Several diseases such as tuberculosis, leprosy and AIDS only came under control after they were treated with associations of drugs with different mechanisms of action. This not only boosts the action of the different compounds, but also may avoid the development of parasite resistance .To this end, over the short term, we propose experimental studies on laboratory animals and clinical trials with the following associations: (i) nifurtimox ...

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  [Rasburicase for tophaceus gout treatment.]

Authors: Ribeiro A, Bogas M, Costa J, Costa L, Araújo D The main obstacle to the treatment of hyperuricemia in patients with allergy to allopurinol is the limited availability of equally efficient alternative drugs. The authors present a clinical case of a patient with incapacitant tophaceus gout, allergy to allopurinol and contraindication for uricosurics, who was treated with rasburicase, an urato-oxidase recombinant, based on experience with this drug in tumoral lisis and in some cases reports of tophaceus gout. The authors also enhance the fact of being a patient with a sequelar hemiplegia of a previous cerebrovascular disease that presents tophus only in the not paretic member. The management of patients with allergy to allopurinol can be a clinical challenge, and the monthly...

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  Maternal Allopurinol During Fetal Hypoxia Lowers Cord Blood Levels of the Brain Injury Marker S-100B

CONCLUSIONS: Maternal allopurinol/oxypurinol crosses the placenta during fetal hypoxia. In fetuses/newborns with therapeutic allopurinol/oxypurinol concentrations in cord blood, lower plasma levels of the brain injury marker protein S-100B were detected. A larger allopurinol trial in compromised fetuses at term seems warranted. The allopurinol dosage must be adjusted to achieve therapeutic fetal allopurinol/oxypurinol concentrations. (Source: PEDIATRICS)

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  Temperature and solvent effects in the solubility of some pharmaceutical compounds: Measurements and modeling.

Authors: Mota FL, Carneiro AP, Queimada AJ, Pinho SP, Macedo EA In this work, pure solvent solubilities of drugs, such as paracetamol, allopurinol, furosemide and budesonide, measured in the temperature range between 298.2-315.2K are presented. The solvents under study were water, ethanol, acetone, ethyl acetate, carbon tetrachloride and n-hexane. Measurements were performed using the shake-flask method for generating the saturated solutions followed by compositional analysis by HPLC. Previous literature values on the solubilities of paracetamol were used to assess the experimental methodology employed in this work. No literature data was found for any of the other drugs studied in this assay. Melting properties of the pure drugs were also determined by differential scanning calorimetr...

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  Hydroxychavicol: a potent xanthine oxidase inhibitor obtained from the leaves of betel, Piper betle.

Authors: Murata K, Nakao K, Hirata N, Namba K, Nomi T, Kitamura Y, Moriyama K, Shintani T, Iinuma M, Matsuda H The screening of Piperaceous plants for xanthine oxidase inhibitory activity revealed that the extract of the leaves of Piper betle possesses potent activity. Activity-guided purification led us to obtain hydroxychavicol as an active principle. Hydroxychavicol is a more potent xanthine oxidase inhibitor than allopurinol, which is clinically used for the treatment of hyperuricemia. PMID: 19387769 [PubMed - in process] (Source: Natural Medicines)

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  Ultrasonography shows disappearance of monosodium urate crystal deposition on hyaline cartilage after sustained normouricemia is achieved

This study aimed at determining whether lowering serum urate (SU) to less than 6 mg/dl in patients with gout affects ultrasonographic findings. Seven joints in five patients with monosodium urate (MSU) crystal proven gout and hyperuricemia were examined over time with serial ultrasonography. Four of the five patients were treated with urate lowering drugs (ULDs) (allopurinol, n = 3; probenecid, n = 1). One patient was treated with colchicine alone. Attention was given to changes in a hyperechoic, irregular coating of the hyaline cartilage in the examined joints (double contour sign or “urate icing”). This coating was considered to represent precipitate of MSU crystals. Index joints included metacarpophalangeal (MCP) joints (n = 2), knee joints (n&...

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  Allopurinol/antibacterials/carbamazepine: Stevens-Johnson syndrome and toxic epidermal necrolysis (first report with cloxacillin), treated with immune globulin: 6 case reports

(Source: Reactions)

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  Predictors of Cost and Clinical Outcomes of Percutaneous Nephrostolithotomy

Purpose: There is a paucity of information on the association of preoperative parameters with surgical outcomes and cost. We identified preoperative predictors of direct cost and examined the association of these factors with the perioperative outcomes of percutaneous nephrostolithotomy.Materials and Methods: We reviewed the records of 200 consecutive patients who underwent percutaneous nephrostolithotomy at our hospital from September 2005 to May 2007. Complete cost and clinical information were available on 179 patients (89.5%). Patient and stone characteristics, and perioperative outcomes were recorded. Direct and component costs, including room and board, laboratory, pharmacy, radiology, operating room, surgical supplies, anesthesia and recovery room, were obtained from our hospital bi...

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  Allopurinol/antibacterials/carbamazepine: Stevens-Johnson syndrome and toxic epidermal necrolysis (first report with cloxacillin), treated with immune globulin: 6 case reports.

Page: 7 (Source: Reactions Weekly)

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  Allopurinol and mortality in hyperuricaemic patients

Conclusion. Our findings indicate that allopurinol treatment may provide a survival benefit among patients with hyperuricaemia. (Source: Rheumatology)

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  [Drug-induced hypersensitivity syndrome and HHV-6 reactivation]

Authors: Tohyama M, Hashimoto K Drug-induced hypersensitivity syndrome (DIHS) is an adverse reaction with clinical signs of fever, rash, and internal organ involvement. The culprit drugs of DIHS are limited to several drugs such as carbamazepine, phenytoin, phenobarbital, zonisamide, allopurinol, salazosulfapyridine, diaphenylsulphone, and mexiletine. The association of HHV-6 reactivation with DIHS has been known. Flaring of symptoms such as fever and hepatitis is closely related to HHV-6 reactivation. A combination of immunologic reaction to a drug and HHV-6 reactivation results in the severe course of DIHS. PMID: 19927985 [PubMed - in process] (Source: Uirusu. Journal of Virology)

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  New, Coming Drugs Offer Options for Gout

FT. LAUDERDALE — The approval of febuxostat for the treatment of gout means that there is now an alternative for patients with severe disease who cannot tolerate allopurinol. Febuxostat, approved by the Food and Drug Administration in February, is structurally distinct from allopurinol, another xanthine oxidase inhibitor that also exerts inhibitory activity on other enzymes involved in purine and pyrimidine metabolism, according to Dr. Robert L. Wortmann, professor of medicine, Dartmouth-Hitchcock Medical Center, Lebanon, N.H. Febuxostat, marketed under the trade name Uloric, is the first urate-lowering drug approved for gout since 1964. (Source: Caring for the Ages)

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  NADPH oxidase plays a central role in cone cell death in retinitis pigmentosa

In this study, we investigated the hypothesis that NADPH oxidase (Nox) and/or xanthine oxidase serve as critical intermediaries between increased tissue oxygen and the generation of excessive reactive oxygen species that cause oxidative damage to cones. Apocynin, a blocker of Nox, but not allopurinol, a blocker of xanthine oxidase, markedly reduced the superoxide radicals visualized by hydroethidine in the outer retina in the retinal degeneration-1 (rd1+/+) model of RP. Compared to rd1+/+ mice treated with vehicle, those treated with apocynin, but not those treated with allopurinol, had significantly less oxidative damage in the retina measured by ELISA for carbonyl adducts. Apocynin-treated, but not allopurinol-treated, rd1+/+ mice had preservation of cone cell density, increased mRNA lev...

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  Aloprim (Allopurinol Sodium for Injection) - updated on RxList

Aloprim (Allopurinol Sodium for Injection) drug description - FDA approved labeling for prescription drugs and medications at RxList (Source: RxList - New and Updated Drug Monographs)

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  The Effect of Lowering Uric Acid on Renal Disease in the Type 2 Diabetic db/db Mice.

In conclusion, hyperuricemia has a pathogenic role in the mild tubulointerstitial injury associated with diabetic nephropathy, but not glomerular damage in db/db mice. Lowering uric acid may reduce tubulointerstitial injury in diabetes. Key words: Inflammation, MCP-1, ICAM-1, tubulointerstitial injury. PMID: 19458127 [PubMed - as supplied by publisher] (Source: American Journal of Physiology. Renal Physiology)

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  Allopurinol: DRESS syndrome: case report

(Source: Reactions)

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  Allopurinol: DRESS syndrome: case report.

Page: 7 (Source: Reactions Weekly)

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  Sour Notes on Sweet Drinks

The perspective on uric acid has ranged from innocent bystander to cause of many ills. As far back as the 1870s, Frederick Mohamed noted patients with gout had higher blood pressures than those without. In 1897, Alexander Haig hypothesized that uric acid was the cause of diseases including gout, hypertension, cardiovascular disease, stroke, dementia, and a variety of abdominal and joint complaints. Throughout most of the twentieth century, however, elevated serum uric acid was believed to be a marker of decreased renal function and of no direct clinical significance. Over the past decade, numerous studies have found that an elevated serum uric acid level predicts the development of hypertension. An elevated serum uric acid is also common in untreated hypertension and especially common in a...

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  [Clinical and epidemiological research] A randomised controlled trial on the efficacy and tolerability with dose escalation of allopurinol 300-600 mg/day versus benzbromarone 100-200 mg/day in patients with gout

Conclusions: Increasing the allopurinol dose from 300 to 600 mg/day and the benzbromarone dose from 100 to 200 mg/day according to the target sUr produced significantly higher success rates (both 78% successful in attaining sUr <=0.30 mmol/l). No significant differences in treatment success between benzbromarone and allopurinol were found after dose escalation. Trial registration number: ISRCTN49563848). (Source: Annals of the Rheumatic Diseases)

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  Xanthine oxidase inhibiting effects of noni (Morinda citrifolia) fruit juice

This study showed that in an in vitro bioassay that Tahitian Noni® Juice (TNJ) inhibited xanthine oxidase (XO) concentration dependently. Concentrations of 1, 5 and 10 mg/mL of TNJ inhibited XO by 11%, 113% and 148%, respectively, with an IC50 of 3.8 mg compared with an IC50 of 2.4 µm for allopurinol. Noni fruit juice concentrate (NFJC) also inhibited XO concentration dependently. Concentrations of 1 and 5 mg/mL NFJC inhibited XO in vitro by 184% and 159%, respectively. A 0.1 mg/mL methanol extract (NFJME) from the fractionation of noni fruit puree inhibited XO by 64%. It was elucidated that the noni fruit juice inhibitory effect on XO enzymes is the mechanism by which noni ameliorates gout and gout-like diseases. Further, the results also support the traditional usage of noni in the tre...

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  Stevens-Johnson Syndrome Induced by Combination of Imatinib and Allopurinol

Chemotherapy 2009;55:197-199 (DOI:10.1159/000218097) (Source: Karger Publishers)

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  Role of superoxide, nitric oxide, and peroxynitrite in doxorubicin-induced cell death in vivo and in vitro

Doxorubicin (DOX) is a potent available antitumor agent; however, its clinical use is limited because of its cardiotoxicity. Cell death is a key component in DOX-induced cardiotoxicity, but its mechanisms are elusive. Here, we explore the role of superoxide, nitric oxide (NO), and peroxynitrite in DOX-induced cell death using both in vivo and in vitro models of cardiotoxicity. Western blot analysis, real-time PCR, immunohistochemistry, flow cytometry, fluorescent microscopy, and biochemical assays were used to determine the markers of apoptosis/necrosis and sources of NO and superoxide and their production. Left ventricular function was measured by a pressure-volume system. We demonstrated increases in myocardial apoptosis (caspase-3 cleavage/activity, cytochrome c release, and TUNEL), ind...

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  NICE Restricts Drug for Hyperuricemia in Gout

The clinical effectiveness agency for England and Wales has restricted treatment of hyperuricemia in gout. In final guidelines, the National Institute for Health and Clinical Excellence (NICE) decided that febuxostat for hyperuricemia should be restricted to those patients unable to take allopurinol. In addition, the agency restricted infliximab to those acute ulcerative colitis patients unable to take ciclosporin. (Source: Rheumatology News International)

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  [A fatal case of drug-induced hypersensitivity syndrome due to allopurinol.]

Authors: Gyotoku E, Iwamoto T, Ochi M A 83-years-old Japanese woman visited our hospital, complaining of fever, erythema over the entire body and erosion on the lips after taking allopurinol for a month. Laboratory examinations showed liver dysfunction and renal failure. The histological study showed dense lymphocytic and eosinophilic perivascular infiltrations in the upper dermis at the erythematous lesion. We withdrew administration and started steroid pulse therapy. The eruption subsided after a week, but liver dysfunction was not controlled by treatment with corticosteroid (PSL 15 mg/day). She suffered from sepsis and DIC, and despite of intensive therapy, she died of the disease. We measured blood concentration of allopurinol and oxypurinol after stopping drug administration. Bloo...

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  Clinical use of pharmacogenomic tests in 2009.

This article briefly reviews the evidence for the utilisation of pharmacogenomics for antidepressant drugs, tamoxifen, codeine, warfarin, azathioprine, clopidogrel, omeprazole, tacrolimus and irinotecan. There are few pharmacogenomics tests being carried out in practice, as there has not been a wide appreciation of their use, and only limited evidence exists for many individual drugs. It is expected that utilisation will increase as more evidence becomes available and there is a wider understanding of the existing evidence by the medical profession. PMID: 19565025 [PubMed - in process] (Source: The Clinical Biochemist. Reviews)

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  Hydroxychavicol: a potent xanthine oxidase inhibitor obtained from the leaves of betel, Piper betle

Abstract  The screening of Piperaceous plants for xanthine oxidase inhibitory activity revealed that the extract of the leaves of Piper betle possesses potent activity. Activity-guided purification led us to obtain hydroxychavicol as an active principle. Hydroxychavicol is a more potent xanthine oxidase inhibitor than allopurinol, which is clinically used for the treatment of hyperuricemia. Content Type Journal ArticleCategory NoteDOI 10.1007/s11418-009-0331-yAuthors Kazuya Murata, Kinki University School of Pharmacy 3-4-1 Kowakae Higashi-osaka Osaka 577-8502 JapanKikuyo Nakao, Kinki University Research Institute of Oriental Medicine 377-2 Ohno-higashi Osakasayama Osaka 589-8511 JapanNoriko Hirata, Kinki University School of Pharmacy 3-4-1 Kowakae Higashi-osaka Osaka 577-85...

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  Miracle Cure for Gout and Arthritis Pain? Six Cherries a Day

(NaturalNews) I bet the big drug companies wish they had invented cherries -- they've proven to be the most powerful medicine in the world for eliminating gout and reducing the pain and inflammation of arthritis. Cherries are such powerful medicine for gout and arthritis, in fact, the FDA went out of its way to try to muzzle cherry growers, preventing them from linking to scientific studies on cherries as a way to censor the information you're about to read here.If the public finds out the truth about cherries, after all, they won't need arthritis drugs anymore (and Big Pharma will lose billions in profits). As you'll see in the collection of quotes about cherries, gout and arthritis (below), cherries are extremely safe, effective and fast-acting for eliminating swelling and pain. Eating j...

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  Oral allopurinol to prevent hyperamylasemia and acute pancreatitis after endoscopic retrograde cholangiopancreatography.

CONCLUSION: Oral allopurinol before ERCP decreased the incidences of hyperamylasemia and pancreatitis in patients submitted to high-risk procedures. PMID: 19340902 [PubMed - in process] (Source: World Journal of Gastroenterology : WJG)

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  Protective Effects of Amifostine and Cyclooxygenase-1 Inhibitor against Normal Human Epidermal Keratinocyte Toxicity Induced by Methotrexate and 5-Fluorouracil

Abstract: Our study aimed to find more effective protective agents against mucosa toxicity induced by methotrexate and 5-fluorouracil. We focused on the relationship between oral mucositis and keratinocyte injury and examined methotrexate and 5-fluorouracil-induced cytotoxicity in normal human epidermal keratinocyte cell lines. Cell viability and superoxide radical activity were measured based on converting WST-1 (4-[3-(4-indophenyl)-2-(4-nitrophenyl)-2H-5-tetrazolio]-1,3-benzen disulfonate) to a water-soluble formazan dye. DNA synthesis by 5-bromo-2'-deoxyuridine incorporation was measured as an indirect parameter of cell proliferation. Allopurinol and amifostine were used as the radical scavengers. l-glutamine was used as a mucosa-protective agent. A cyclooxygenase inhibitor interrupting...

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  A Systematic Review of Studies on Heart Transplantation for Patients With End-Stage Chagas’ Heart Disease

Conclusions: HTx is safe and efficacious for patients with end-stage Chagas’ heart disease. (Source: Journal of Cardiac Failure)

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  What is your diagnosis? Peritoneal effusion from a dog

Abstract: A 5-year-old, female Italian hound dog was presented with progressive weight loss, anorexia, and lethargy. Physical examination abnormalities included poor body condition, abdominal distension, splenomegaly, and areas of crusty alopecia on the head and limbs. Clinicopathologic abnormalities included mild normocytic normochromic anemia, moderate hyperproteinemia and hyperglobulinemia, mild hypoalbuminemia, and hyponatremia, a mild increase in serum alkaline phosphatase activity, and a moderate to marked increase in [beta]- and [gamma]-globulins on serum protein electrophoresis. Abdominal ultrasonography revealed peritoneal effusion. Abdominocentesis yielded [sim]200 mL of serosanguinous, slightly turbid fluid with 2.6 × 109 nucleated cells/L, and a protein concentration of 32 g/L...

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  Individually administered or co-prescribed thiopurines and mesalamines for inflammatory bowel disease.

Authors: Actis GC, Pellicano R, Rizzetto M, Ayoubi M, Leone N, Tappero G, Pazienza P, Rosina F Data from both basic research and clinical experience continue to suggest that mesalamines and thiopurines are effective and efficient for the maintenance of remission of inflammatory bowel diseases. Several decades following the formalization of their indications, attention on these two drugs has been fostered by recent achievements. Demonstration of the ability of mesalamine to activate a colonocyte differentiation factor has shed light on its chemopreventive effects on colorectal cancer; in addition to their anti-proliferative efficacy, thiopurines have been shown to be specific regulators of apoptosis. The two drugs are often co-administered in clinical practice. Recent advancements have ...

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  Adherence with urate-lowering therapies for the treatment of gout

IntroductionAdherence to urate-lowering drugs has not been well evaluated among those with gout. Our aim was to assess the level and determinants of nonadherence with ULDs prescribed for gout. Methods: We identified persons from two integrated delivery systems 18 years or older with a diagnosis of gout who initiated use of allopurinol, probenecid, or sulfinpyrazone from January 1, 2000 through June 30, 2006. Nonadherence was measured using the medication possession ratio over the first year of therapy and defined as an MPR < 0.8. Descriptive statistics were calculated and logistic regression was used to estimate the strength of the association between patient characteristics and nonadherence. Results: There were 4,166 gout patients who initiated ULDs; 97% received allopurinol. Median MPR...

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  A critical reappraisal of allopurinol dosing, safety, and efficacy for hyperuricemia in gout

Abstract  Allopurinol, the first-line drug for serum urate-lowering therapy in gout, is approved by the US Food and Drug Administration for a dose up to 800 mg/d and is available as a low-cost generic drug. However, the vast majority of allopurinol prescriptions are for doses ≤ 300 mg/d, which often fails to adequately treat hyperuricemia in gout. This situation has been promoted by longstanding, non-evidence-based guidelines for allopurinol use calibrated to renal function (and oxypurinol levels) and designed, without proof of efficacy, to avoid allopurinol hypersensitivity syndrome. Severe allopurinol hypersensitivity reactions are not necessarily dose-dependent and do not always correlate with serum oxypurinol levels. Limiting allopurinol dosing to ≤ 300 mg/d subopti...

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  Dogs with Leishmania chagasi infection have semen abnormalities that partially revert during 150 days of Allopurinol and Amphotericin B therapy.

Authors: Assis VP, Ribeiro VM, Rachid MA, Castro AC, Valle GR The goal of the present study was to characterize the semen quality of dogs naturally infected with Leishmaniachagasi, and treated with Allopurinol and Amphotericin B. Eight naturally infected and eight non-infected dogs were selected. Following semen collection, progressive motility, vigor, concentration and sperm morphology were evaluated. The seminal patterns in the treated animals were evaluated at the beginning (d0) and at days 30 (d30), 60 (d60) and 150 (d150) of treatment. The progressive motility at d0 (35.7+/-22.3%) was less than that of the control group (77.8+/-7.1%) (P<0.05). The vigor was similar to the control group throughout the treatment (P>0.05). The number of sperm/mL, sperm/ejaculate and sperm/kg of...

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  Long term efficacy and safety of allopurinol and azathioprine or 6-mercaptopurine in patients with inflammatory bowel disease

The objective of this study is to report long term efficacy and safety, along with results for an additional 11 patients.Methods: Retrospective chart review of patients at the University of Chicago IBD Center treated with allopurinol in addition to thiopurines.Results: Twenty five patients with Crohn's disease or ulcerative colitis were enrolled. Within the first month of therapy 6-TGN metabolite levels increased from a mean of 186.5±17.4 (SE) to 352.8±37.8 pmol/8×108 (p=0.0001). Over the same period 6-MMP levels decreased from a mean of 11,966±1697 to 2004±536 pmol/8×108 (p (Source: Journal of Critical Care)

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  Febuxostat and allopurinol 'good drugs for treating gout'

Both febuxostat and allopurinol are safe and effective in reducing flares in gout patients, according to a study published in the Journal of Rheumatology. (Source: Arthritis Research Campaign)

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  Allopurinol-induced DRESS syndrome in a 13-year-old girl.

Authors: Sackesen C, Dut R, Gucer S, Soyer OU, Adalioglu G PMID: 19274934 [PubMed - in process] (Source: Journal of Investigational Allergology & Clinical Immunology)

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  Gout in the Elderly - A Population Health Study.

CONCLUSION: Gout is associated with a high disease burden in older men and women. The cost is primarily attributable to hospitalization, probably due to the comorbidities associated with gout. As the majority of cases are managed by nonrheumatologists, it is important that guidelines for the diagnosis and treatment of gout are disseminated to and met by all physician groups. PMID: 19286852 [PubMed - as supplied by publisher] (Source: J Rheumatol)

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  Clinical Efficacy and Safety of Successful Longterm Urate Lowering with Febuxostat or Allopurinol in Subjects with Gout.

CONCLUSION: Durable maintenance of goal range SUA level with either dose of febuxostat or in smaller numbers of subjects with allopurinol resulted in near elimination of gout flares and improved tophus status over time. Registered as NCT00175019. PMID: 19286847 [PubMed - as supplied by publisher] (Source: J Rheumatol)

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  Role of superoxide, nitric oxide and peroxynitrite in doxorubicin-induced cell death in vivo and in vitro.

Authors: Mukhopadhyay P, Rajesh M, Batkai S, Yoshihiro K, Hasko G, Liaudet L, Szabo C, Pacher P Doxorubicin (DOX) is a potent antitumor agent available; however its clinical use is limited because of its cardiotoxicity. Cell death is a key component in DOX-induced cardiotoxicity, but its mechanisms are elusive. Here, we explore the role of superoxide, nitric oxide (NO) and peroxynitrite in DOX-induced cell death using both in vivo and in vitro models of cardiotoxicity. Western blot, real-time PCR, immunohistochemistry, flow cytometry, fluorescent microscopy, and biochemical assays were used to determine markers of apoptosis/necrosis, sources of NO and superoxide and their production. Left ventricular function was measured by pressure-volume system. We demonstrate increase in myocardial...

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  Allopurinol: Aplastic anaemia: case report

(Source: Reactions)

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Top Viagra Store

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