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https://www.readbyqxmd.com/read/28223818/an-evidence-based-review-on-urate-lowering-treatments-implications-for-optimal-treatment-of-chronic-hyperuricemia
#1
REVIEW
Marilisa Bove, Arrigo Francesco Giuseppe Cicero, Maddalena Veronesi, Claudio Borghi
Several studies suggest that chronic hyperuricemia, the main precursor of gout, is involved in the pathogenesis of different systemic disorders that affect cardiovascular and renal systems, such as hypertension, obesity, hypercholesterolemia, atherosclerosis, metabolic syndrome, chronic heart failure, and chronic kidney disease. Recent epidemiological evidence has shown an increasing trend in the prevalence of hyperuricemia and gout in the Western world: a number of population-based studies estimate a prevalence of up to 21% for hyperuricemia and 1%-4% for gout...
2017: Vascular Health and Risk Management
https://www.readbyqxmd.com/read/28219711/oxidative-stress-inactivates-ecto-5-nucleotidase-by-inhibiting-protein-kinase-c-in-rat-hearts-in-vivo
#2
Toshio Obata, Michiko Nakashima
Examined in the present study, allopurinol are xanthine oxidase inhibitors for use in rat hearts in vivo dialysis technology and ventricular myocardial intersitial adenosine production can increase. The microdialysis probe was implanted in the left ventricular myocardium of anesthetized rat hearts and the tissue in the vicinity of the dialysis was perfused with Tyrode's solution containing adenosine 5'-monophosphate (AMP) through the dialysis probe at a rate of 1.0ml/min to assess the activity of ecto-5'-nucleotidase...
February 17, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28208879/carbamazepine-induced-life-threatening-stevens-johnson-syndrome-and-agranulocytosis-the-maiden-case
#3
A Avinash, V Mohanbabu Amberkar, Sushil Kiran Kunder, Sharath Madhyastha, K Meenakumari
Stevens-Johnson syndrome is one of the few dermatological emergencies in clinical practice. The syndrome is often secondary to the usage of drugs, of which allopurinol, penicillins, sulfa drugs, ibuprofen, sodium valproate, phenytoin, lamotrigine and carbamazepine are commonly implicated. Agranulocytosis is the existence of a clinically significant reduction in neutrophil count. This condition is a serious threat to the patient, as he/she is at a greater risk of contracting bacterial or fungal infections, which may prove to be fatal...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28203093/prevention-and-treatment-of-tumor-lysis-syndrome-and-the-efficacy-and-role-of-rasburicase
#4
REVIEW
Nael Alakel, Jan Moritz Middeke, Johannes Schetelig, Martin Bornhäuser
Tumor lysis syndrome (TLS) is a potentially life-threatening condition that occurs in oncologic and hematologic patients with large tumor burden, either due to cytotoxic therapy or, less commonly, spontaneously because of massive tumor cell lysis. TLS is clinically characterized by acute renal failure, hyperuricemia, hyperkalemia, hyperphosphatemia, and hypocalcemia. While limited options are available for treating TLS, identifying patients at high risk for developing TLS and prevention in high-risk patients remain an important aspect in the treatment of cancer patients...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28202399/the-epidemiology-of-stevens-johnson-syndrome-and-toxic-epidermal-necrolysis-in-the-uk
#5
Noel Frey, Janine Jossi, Michael Bodmer, Andreas Bircher, Susan S Jick, Christoph R Meier, Julia Spoendlin
Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are rare but life-threatening mucocutaneous diseases. SJS/TEN mostly manifest as a reaction to new drug use, but little is known about their incidence and epidemiology. We conducted a large observational study on the epidemiology of SJS/TEN using data from the UK-based Clinical Practice Research Datalink. Among 551 validated SJS/TEN cases, we calculated an incidence rate of 5.76 SJS/TEN cases/million person-years between 1995 and 2013, which was consistent throughout the study period, and was highest in patients aged 1-10 years and ≥80 years...
February 12, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28202260/allopurinol-benzbromarone-and-risk-of-coronary-heart-disease-in-gout-patients-a-population-based-study
#6
Hsiu-Chen Lin, Masao Daimon, Ching-Hung Wang, Yi Ho, Yow-Shieng Uang, Shuo-Ju Chiang, Li-Hsuan Wang
BACKGROUND: The effect of gout on the risk of developing coronary artery disease (CAD) is uncertain. Some studies have found that gout is a risk factor for acute myocardial infarction. This study examined the changes in risk of CAD in gout patients taking allopurinol and/or benzbromarone, and analyzed the dose-response relationship of both drugs with CAD incidence. METHODS: The medical records of one million subjects from 2000 to 2011 were provided by the Taiwan National Health Insurance Research Database...
February 12, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28192760/competitive-binding-experiments-can-reduce-the-false-positive-results-of-affinity-based-ultrafiltration-hplc-a-case-study-for-identification-of-potent-xanthine-oxidase-inhibitors-from-perilla-frutescens-extract
#7
Zhiqiang Wang, Shin Hwa Kwon, Seung Hwan Hwang, Young-Hee Kang, Jae-Yong Lee, Soon Sung Lim
The purpose of this study was to assess the possibility of using competitive binding experiments with ultrafiltration-HPLC analysis to identify potent xanthine oxidase (XO) inhibitors from the Perilla frutescens extract as an attempt to reduce the number of false positive results. To isolate the enzyme-ligand complex from unbound compounds, the P. frutescens extract was either incubated in the absence of XO, in the presence of XO, or with the active site blocked XO before the ultrafiltration was performed. Allopurinaol was used as the XO active site blocker...
February 6, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28179423/xanthine-dehydrogenase-1-silencing-in-aedes-aegypti-mosquitoes-promotes-a-blood-feeding-induced-adulticidal-activity
#8
Jun Isoe, Natthida Petchampai, Yurika E Isoe, Katrina Co, Stacy Mazzalupo, Patricia Y Scaraffia
Aedesaegypti has 2 genes encoding xanthine dehydrogenase (XDH). We analyzed XDH1 and XDH2 gene expression by real-time quantitative PCR in tissues from sugar- and blood-fed females. Differential XDH1 and XDH2 gene expression was observed in tissues dissected throughout a time course. We next exposed females to blood meals supplemented with allopurinol, a well-characterized XDH inhibitor. We also tested the effects of injecting double-stranded RNA (dsRNA) against XDH1, XDH2, or both. Disruption of XDH by allopurinol or XDH1 by RNA interference significantly affected mosquito survival, causing a disruption in blood digestion, excretion, oviposition, and reproduction...
February 8, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28175170/p649-does-switching-to-low-dose-thiopurine-and-allopurinol-prevent-ibd-patients-with-evidence-of-hypermethylation-on-standard-dose-thiopurines-from-developing-hepatotoxicity-and-drug-side-effects
#9
K Wade, H Johnson, K Slinger, C Hovell, S Weaver, S McLaughlin
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28175085/p379-is-febuxostat-the-solution-for-patients-who-develop-side-effects-to-low-dose-azathioprine-and-allopurinol-co-therapy
#10
H Johnson, K Wade, C Hovell, S Weaver, S McLaughlin
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28172761/p479-shifting-the-shunters-in-a-paediatric-inflammatory-bowel-disease-population-thiopurine-dose-splitting-versus-allopurinol-and-thiopurine-co-therapy
#11
S Chadokufa, M Baycheva, T Sawney, N Acton, S Sider, N Shah, B Huggett, R Dziubak, F Kiparrissi
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28172518/p444-does-one-size-truly-fit-all-co-prescription-of-allopurinol-and-thiopurine-therapy-results-in-variation-of-tgns-outside-the-therapeutic-range-in-more-than-half-of-patients
#12
E Johnston, B Warner, S Fong, M Arenas-Hernandez, A Marinaki, S Anderson, J Sanderson, P Irving
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28162244/pharmacogenetics-of-hypersensitivity-drug-reactions
#13
Simone Negrini, Laurent Becquemont
Adverse drug reactions are a significant cause of morbidity and mortality and represent a major burden on the healthcare system. Some of those reactions are immunologically mediated (hypersensitivity reactions) and can be clinically subdivided into two categories: immediate reactions (IgE-related) and delayed reactions (T-cell-mediated). Delayed hypersensitivity reactions include both systemic syndromes and organ-specific toxicities and can be triggered by a wide range of chemically diverse drugs. Recent studies have demonstrated a strong genetic association between human leukocyte antigen alleles and susceptibility to delayed drug hypersensitivity...
January 3, 2017: Thérapie
https://www.readbyqxmd.com/read/28153936/the-3-year-incidence-of-gout-in-elderly-patients-with-ckd
#14
Vivian S Tan, Amit X Garg, Eric McArthur, Ngan N Lam, Manish M Sood, Kyla L Naylor
BACKGROUND AND OBJECTIVES: The risk of gout across CKD stages is not well described. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We performed a retrospective cohort study using linked health care databases from Ontario, Canada from 2002 to 2010. The primary outcome was the 3-year cumulative incidence of gout, on the basis of diagnostic codes. We presented our results by level of kidney function (eGFR≥90 ml/min per 1.73 m(2), 60-89, 45-59, 30-44, 15-29, and chronic dialysis) and by sex...
February 2, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28151736/nodular-regenerative-hyperplasia-of-the-liver-in-patients-with-ibd-treated-with-allopurinol-thiopurine-combination-therapy
#15
Margien L Seinen, Dirk P van Asseldonk, Nanne K de Boer, Gerd Bouma, Carin M van Nieuwkerk, Chris J Mulder, Elisabeth Bloemena, Adriaan A van Bodegraven
BACKGROUND: Thiopurine therapy, particularly thioguanine, has been associated with nodular regenerative hyperplasia (NRH) of the liver. Combination therapy of allopurinol and an adapted low-dose thiopurine leads to a pharmacokinetic profile that has similarities to that of thioguanine. Therefore, allopurinol-thiopurine combination therapy may also be associated with NRH of the liver. We assessed the prevalence of NRH in patients with inflammatory bowel disease (IBD) treated with allopurinol-thiopurine combination therapy by liver biopsy specimen examination...
March 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28148582/gout-a-guide-for-the-general-and-acute-physicians
#16
Abhishek Abhishek, Edward Roddy, Michael Doherty
Gout is the most prevalent inflammatory arthritis and affects 2.5% of the general population in the UK. It is also the only arthritis that has the potential to be cured with safe, inexpensive and well tolerated urate-lowering treatments, which reduce serum uric acid by either inhibiting xanthine oxidase - eg allopurinol, febuxostat - or by increasing the renal excretion of uric acid. Of these, xanthine oxidase inhibitors are used first line and are effective in 'curing' gout in the vast majority of patients...
February 2017: Clinical Medicine: Journal of the Royal College of Physicians of London
https://www.readbyqxmd.com/read/28144463/drug-reaction-with-eosinophilia-and-systemic-symptoms-induced-by-valproic-acid-a-case-report
#17
Mahboubeh Darban, Bahador Bagheri
INTRODUCTION: Drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is a rare but life-threatening reaction to drugs such as carbamazepine and allopurinol. The condition is characterized by skin rashes, fever, hematological disturbances, lymphadenopathy, and organ failure, most probably hepatic dysfunction. To date, only a few cases of valproate-induced DRESS syndrome have been reported. CASE PRESENTATION: We report on the case of a 60-year-old man who had been treated with valproic acid some time before being referred to Kowsar Hospital, Semnan, Iran in December 2015...
September 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28138822/drug-reaction-with-eosinophilia-and-systemic-symptoms-dress-syndrome-and-the-rheumatologist
#18
REVIEW
Marwan H Adwan
PURPOSE OF THE REVIEW: The purpose of the review is to summarise the various drugs used in rheumatology practice implicated in the causation of DRESS syndrome. RECENT FINDINGS: The most commonly reported drugs are allopurinol, sulfasalazine and minocycline, which pose a very high risk for DRESS syndrome development, followed by strontium ranelate and dapsone. Other, less commonly reported, drugs include leflunomide, hydroxychloroquine, non-steroidal anti-inflammatory drugs, febuxostat, bosentan and solcitinib...
January 2017: Current Rheumatology Reports
https://www.readbyqxmd.com/read/28131711/discovery-and-biological-evaluation-of-some-1h-1-2-3-triazol-4-yl-methoxybenzaldehyde-derivatives-containing-an-anthraquinone-moiety-as-potent-xanthine-oxidase-inhibitors
#19
Ting-Jian Zhang, Song-Ye Li, Wei-Yan Yuan, Qing-Xia Wu, Lin Wang, Su Yang, Qi Sun, Fan-Hao Meng
A series of (1H-1,2,3-triazol-4-yl)methoxybenzaldehyde derivatives containing an anthraquinone moiety were synthesized and identified as novel xanthine oxidase inhibitors. Among them, the most promising compounds 1h and 1k were obtained with IC50 values of 0.6μM and 0.8μM, respectively, which were more than 10-fold potent compared with allopurinol. The Lineweaver-Burk plot revealed that compound 1h acted as a mixed-type xanthine oxidase inhibitor. SAR analysis showed that the benzaldehyde moiety played a more important role than the anthraquinone moiety for inhibition potency...
January 16, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28118526/gout-self-management-in-african-american-veterans-a-qualitative-exploration-of-challenges-and-solutions-from-patients-perspectives
#20
Jasvinder A Singh, Ivan Herbey, Aseem Bharat, Janet E Dinnella, Sally Pullman-Mooar, Seth Eisen, Nataliya Ivankova
OBJECTIVE: To explore gout self-management and associated challenges and solutions in African-Americans. METHODS: We conducted semi-structured interviews with 35 African-Americans veterans with gout, who received healthcare at Birmingham or Philadelphia Veterans Affairs (VA) medical centers, had filled urate-lowering therapy (ULT; most commonly allopurinol) for at least 6 months and had ULT a medication possession ratio ≥80%. The interview protocol was constructed to explore key concepts related to gout self-management, including: initial diagnosis of gout, beginning medical care for gout, the course of the gout, ULT medication adherence, dietary strategies, comorbidity and side effects, and social support...
January 24, 2017: Arthritis Care & Research
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