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https://www.readbyqxmd.com/read/28816767/allopurinol-medication-adherence-as-a-mediator-of-optimal-outcomes-in-gout-management
#1
Brian W Coburn, Kayli A Bendlin, Harlan Sayles, Jane Meza, Cynthia L Russell, Ted R Mikuls
BACKGROUND: Patient and provider factors, including allopurinol medication adherence, affect gout treatment outcomes. OBJECTIVES: The aim of this study was to examine associations of patient and provider factors with optimal gout management. METHODS: Linking longitudinal health and pharmacy dispensing records to questionnaire data, we assessed patient and provider factors among 612 patients with gout receiving allopurinol during a recent 1-year period...
August 14, 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28801728/arctium-minus-crude-extract-presents-antinociceptive-effect-in-a-mice-acute-gout-attack-model
#2
Susana Paula Moreira Fischer, Indiara Brusco, Camila Camponogara, Mariana Piana, Henrique Faccin, Luciana Assis Gobo, Leandro Machado de Carvalho, Sara Marchesan Oliveira
Gout is a disorder that triggers a severe inflammatory reaction which generates episodes of intense pain and discomfort to the patient. Arctium minus (Hill) Bernh. (Asteraceae) is known as "burdock" and displays anti-inflammatory, antinociceptive, against rheumatic pain and radical-scavenging activities. Species of the genus Arctium have been used in assistant therapy of gout and other inflammatory processes. We investigated the antinociceptive and anti-edematogenic effects of the crude extract of A. minus seeds in an acute gout attack model induced by intra-articular injection of monosodium urate (MSU) crystals in adult male Swiss mice (25-30 g)...
August 11, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28794291/allopurinol-against-progression-of-chronic-kidney-disease
#3
Sima Golmohammadi, Afshin Almasi, M Manouchehri, Hamid Reza Omrani, Mohammad Reza Zandkarimi
INTRODUCTION: Hyperuricemia is common in approximately 50% of patients with kidney failure due to decreased uric acid excretion, and it has been recently known as an independent factor in the progression of renal insufficiency. Allopurinol inhibits the production of uric acid. The aim of this study was to evaluate the effect of allopurinol on chronic kidney disease progression. MATERIALS AND METHODS: In a clinical trial, patients with stages 3 and 4 of chronic kidney disease were divided into two groups to receive allopurinol, 100 mg, daily and placebo for 12 months...
July 2017: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/28776450/pharmacological-modulation-of-reactive-oxygen-species-ros-improves-the-airway-hyperresponsiveness-by-shifting-the-th1-response-in-allergic-inflammation-induced-by-ovalbumin
#4
Renata Tiscoski Nesi, Mavina Valente Barroso, Valdirene de Souza Muniz, Ana Carolina de Arantes, Marco Aurélio Martins, Lycia de Brito Gitirana, Josiane Sabbadini Neves, Cláudia Farias Benjamim, Manuella Lanzetti, Samuel Santos Valença
Asthma is an allergic inflammation driven by the Th2 immune response with release of such cytokines as IL-4 and IL-13, which contribute to the airflow limitations and airway hyperresponsiveness (AHR). The involvement of oxidative stress in this process is well-established, but the specific role of the superoxide anion and nitric oxide in asthma are poorly understood. Thus, the aim of this study was to investigate the mechanisms underlying the superoxide anion/nitric oxide production and detoxification in a murine asthma model...
August 4, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28765418/the-emergence-of-sarcopenia-as-an-important-entity-in-older-people
#5
Natalie J Offord, Miles D Witham
Sarcopenia refers to the loss of muscle mass and strength seen with advancing age. The pathophysiology is multifactorial, with loss of muscle satellite cells, changes in hormonal systems, chronic inflammation, oxidative stress and anabolic resistance to protein utilisation all implicated. Older age, female sex and immobility are important risk factors. Sarcopenia is clinically important as it is a major risk factor for physical frailty, falls, prolonged hospitalisation, dependency and earlier death. Diagnosis requires evidence of reduced muscle mass measured by handgrip strength or walk speed, together with evidence of low muscle mass, measured by one of a variety of techniques such as bioimpedance analysis or dual X-ray absorptiometry...
July 2017: Clinical Medicine: Journal of the Royal College of Physicians of London
https://www.readbyqxmd.com/read/28765252/management-of-gout-in-a-hospital-setting-a-lost-opportunity
#6
Sarah Wright, Peter T Chapman, Christopher Frampton, John L O'Donnell, Rafi Raja, Lisa Stamp
OBJECTIVE: Management of gout is frequently suboptimal. The aim of this study was to determine the proportion of patients presenting to Christchurch Hospital for a gout flare and to determine whether management for both acute flares and urate lowering was in accordance with international recommendations. METHODS: A retrospective audit was undertaken of all admissions to Christchurch Hospital from June 1, 2013, to May 31, 2014, in which gout was coded as a primary or secondary discharge diagnosis...
August 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28764846/uric-acid-promotes-vascular-stiffness-maladaptive-inflammatory-responses-and-proteinuria-in-western-diet-fed-mice
#7
Annayya R Aroor, Guanghong Jia, Javad Habibi, Zhe Sun, Francisco I Ramirez-Perez, Barron Brady, Dongqing Chen, Luis A Martinez-Lemus, Camila Manrique, Ravi Nistala, Adam T Whaley-Connell, Vincent G Demarco, Gerald A Meininger, James R Sowers
OBJECTIVE: Aortic vascular stiffness has been implicated in the development of cardiovascular disease (CVD) and chronic kidney disease (CKD) in obese individuals. However, the mechanism promoting these adverse effects are unclear. In this context, promotion of obesity through consumption of a western diet (WD) high in fat and fructose leads to excess circulating uric acid. There is accumulating data implicating elevated uric acid in the promotion of CVD and CKD. Accordingly, we hypothesized that xanthine oxidase(XO) inhibition with allopurinol would prevent a rise in vascular stiffness and proteinuria in a translationally relevant model of WD-induced obesity...
September 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28755406/effect-of-apple-polyphenols-on-vascular-oxidative-stress-and-endothelium-function-a-translational-study
#8
Arrigo F G Cicero, Cristiana Caliceti, Federica Fogacci, Marina Giovannini, Donato Calabria, Alessandro Colletti, Maddalena Veronesi, Aldo Roda, Claudio Borghi
SCOPE: We aimed examining apple polyphenols' effect on uricemia and endothelial function in a sample of overweight subjects. METHODS AND RESULTS: This was a two-phases study. In vitro experiment aimed to evaluate apple polyphenols' ability to lower uric acid in comparison with allopurinol. In vivo study consisted in a randomized, double-blind, parallel placebo-controlled clinical trial involving 62 overweight volunteers with suboptimal values of fasting plasma glucose (100mg/dL≤FPG≤125mg/dL), randomized to 300mg apple polyphenols or placebo for 8 weeks...
July 29, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28754333/effect-of-allopurinol-and-uric-acid-normalization-on-serum-lipids-hyperuricemic-subjects-a-systematic-review-with-meta-analysis
#9
REVIEW
Verônica Moreira Ferreira de Castro, Angelita Cristine de Melo, Vinícius Silva Belo, Valéria Ernestânia Chaves
Although uric acid is not part of any definition of metabolic syndrome, a number of studies have shown strong associations between the concentration of uric acid and metabolic syndrome or its components. The purpose of this systematic review with meta-analysis was to evaluate, using prospective interventional studies, the effects of allopurinol therapy and uric acid normalization on serum concentrations of triacylglycerol, total-cholesterol, LDL-cholesterol and HDL-cholesterol in hyperuricemic subjects. A systematic search of the PubMed and Scopus databases was performed following the guidelines described in the PRISMA statement...
July 25, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28748426/quality-of-care-in-gout-a-clinical-audit-on-treating-to-the-target-with-urate-lowering-therapy-in-real-world-gout-patients
#10
Carly A Janssen, Tim L Th A Jansen, Martijn A H Oude Voshaar, Harald E Vonkeman, Mart A F J van de Laar
The current paper aimed to describe the quality of care for gout patients by showing the clinical outcomes achieved in two patient cohorts in which differing targeted urate lowering therapy (ULT) treatment approaches were employed, both aiming to reach the European League Against Rheumatism recommended serum urate (sUA) targets. A retrospective medical chart review study was conducted. Data from the medical records of gout patients from two clinical centers in The Netherlands, both applying targeted ULT treatments (albeit using different approaches), were reviewed...
July 26, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28748122/asymptomatic-hyperuricemia-and-chronic-kidney-disease-narrative-review-of-a-treatment-controversial
#11
REVIEW
Theodoros Eleftheriadis, Spyridon Golphinopoulos, Georgios Pissas, Ioannis Stefanidis
Today there is plausible evidence both on experimental and epidemiological basis, that hyperuricemia represents a risk factor for the development and progression of chronic kidney disease (CKD). Nevertheless, the role of serum uric acid lowering treatment in CKD is still a matter of serious controversy. Review of randomised controlled trials, suggests that there may be an improvement of renal function with allopurinol treatment in CKD stage 3-5. However, these studies have included a relatively limited number of participants and provide insufficient information on adverse events and on the incidence of the end stage renal disease...
September 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28743362/critical-revision-of-the-medical-treatment-of-gout-in-brazil
#12
Valderilio Feijó Azevedo, Maicon Piana Lopes, Nathan Marostica Catholino, Eduardo Dos Santos Paiva, Vitor Andrei Araújo, Geraldo da Rocha Castelar Pinheiro
Gout is considered the most common form of inflammatory arthritis in men over 40 years. The authors present a brief review of the current treatment of gout and discuss the existing pharmacological limitations in Brazil for the treatment of this disease. Although allopurinol is still the main drug administered for decreasing serum levels of uric acid in gout patients in this country, the authors also present data that show a great opportunity for the Brazilian drug market for the treatment of hyperuricemia and gout and especially for patients using private and public (SUS) health care systems...
July 2017: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/28740837/histological-remission-of-autoimmune-hepatitis-after-the-addition-of-allopurinol-and-azathioprine-dose-reduction
#13
Ana Luiza Vilar Guedes, Adriana Ribas Andrade, Vinicius Santos Nunes, Fabiana Roberto Lima, Evandro Sobroza de Mello, Suzane Kioko Ono, Débora Raquel Benedita Terrabuio, Eduardo Luiz Rachid Cançado
The standard therapy for some autoimmune diseases consists of a combination of corticosteroids and thiopurines. In non-responders to thiopurine drugs, the measurement of the metabolites of azathioprine, 6-thioguanine, and 6-methylmercaptopurine, can be a useful tool. The measurement has been used during the treatment of inflammatory bowel diseases and, less commonly, in autoimmune hepatitis. Many patients preferentially metabolize thiopurines to 6-methylmercaptopurine (6-MMP), which is potentially hepatotoxic, instead of 6-thioguanine, the active immunosuppressive metabolite...
April 2017: Autopsy & case reports
https://www.readbyqxmd.com/read/28740630/safety-and-effect-of-high-dose-allopurinol-in-patients-with-severe-left-ventricular-systolic-dysfunction
#14
Mohammad Mostafa Ansari-Ramandi, Majid Maleki, Azin Alizadehasl, Ahmad Amin, Sepideh Taghavi, Mohammad Javad Alemzadeh-Ansari, Ali Kazem Moussavi, Nasim Naderi
Introduction: Allopurinol used in the treatment of gout has been shown to improve the vascular endothelial dysfunction and reduce the dysfunction of the failing heart. This study was done to evaluate the effect and safety of allopurinol in non-hyperuricemic patients with chronic severe left ventricular (LV) dysfunction. Methods: In this study, 35 consecutive cases of non-hyperuricemic patients with chronic heart failure who had severe LV systolic dysfunction (ejection fraction of less than 35%) and were on optimal guideline directed medical therapies for at least 3 months were included...
2017: Journal of Cardiovascular and Thoracic Research
https://www.readbyqxmd.com/read/28739782/co-administration-of-allopurinol-to-increase-anti-mycobacterial-efficacy-of-pyrazinamide-evaluation-in-a-whole-blood-bactericidal-activity-model
#15
Claire M Naftalin, Rupangi Verma, Meera Gurumurthy, Qingshu Lu, Matthew Zimmerman, Benjamin Chaik Meng Yeo, Kin Hup Tan, Wenwei Lin, Buduo Yu, Véronique Dartois, Nicholas I Paton
Co-administering pyrazinamide (PZA) with the xanthine oxidase inhibitor, allopurinol, increases systemic levels of the active metabolite, pyrazinoic acid (POA), but effects on bactericidal activity against tuberculosis are unknown. We randomized healthy volunteers to take a single dose of PZA (either 10mg/kg or 25mg/kg) and the same dose 7 days later co-administered with allopurinol (100mg daily, 2 days before to 1 day after PZA dose). Blood was drawn at intervals to 48 hours after each PZA dose and drug levels were measured using liquid chromatography-tandem mass spectrometry...
July 24, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28718873/clinical-features-of-drug-reaction-with-eosinophilia-and-systemic-symptoms-dress-syndrome-a-study-of-25-patients-in-korea
#16
Jin Y Lee, Suh-Young Lee, Ji E Hahm, Jae W Ha, Chul W Kim, Sang S Kim
BACKGROUND: Drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is a rare adverse drug reaction. This study aimed to evaluate the incidence of association with individual drugs, clinical manifestations, disease course, and outcomes of DRESS. METHODS: Using the criteria of the European Registry of Severe Cutaneous Adverse Reactions (RegiSCAR), the medical records of 25 patients diagnosed with DRESS between 2006 and 2015 were retrospectively reviewed...
July 18, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28711969/hyperuricemia-is-associated-with-an-increased-prevalence-of-paroxysmal-atrial-fibrillation-in-patients-with-type-2-diabetes-referred-for-clinically-indicated-24-h-holter-monitoring
#17
A Mantovani, R Rigolon, A Civettini, B Bolzan, G Morani, S Bonapace, C Dugo, G Zoppini, E Bonora, G Targher
PURPOSE: Several studies have reported an association between hyperuricemia and increased risk of permanent atrial fibrillation (AF) in patients with and without type 2 diabetes mellitus (T2DM). Currently, no published data are available on the relationship between hyperuricemia and risk of paroxysmal AF. METHODS: We retrospectively evaluated 245 T2DM outpatients without pre-existing AF, cancer, cirrhosis and end-stage renal disease, who underwent a 24-h ECG-Holter monitoring for various clinical indications...
July 15, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28709129/dissolution-assessment-of-allopurinol-immediate-release-tablets-by-near-infrared-spectroscopy
#18
Jelena Smetiško, Snežana Miljanić
The purpose of this study was to develop a NIR spectroscopic method for assessment of drug dissolution from allopurinol immediate release tablets. Thirty three different batches of allopurinol immediate release tablets containing constant amount of the active ingredient, but varying in excipients content and physical properties were introduced in a PLS calibration model. Correlating allopurinol dissolution reference values measured by the routinely used UV/Vis method, with the data extracted from the NIR spectra, values of correlation coefficient, bias, slope, residual prediction determination and root mean square error of prediction (0...
July 1, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28700181/-hyperuricemia-and-gene-mutations-a-case-report
#19
Fabio Tattoli, Daniela Falconi, Ornella De Prisco, Gherzi Maurizio, Federico Marazzi, Marita Marengo, Ilaria Serra, Michela Tamagnone, Luca Cordero di Montezemolo, Barbara Pasini, Marco Formica
Hyperuricemia is frequently found in nephrology. The case presented may be useful to clarify some pathogenetic aspects. It is a patient of 18 years, hyperuricaemic. Non-consanguineous parents, hyperuricemia in the paternal line, not neuropsychiatric disorders in the family. Delay in neuromotor acquisitions, average intellectual disabilities, anxiety disorder, obsessive-compulsive personality traits. Normal renal function and renal ultrasound. Evidence of hyperuricemia in 2015. Never gouty episodes and / or lithiasis, initiated allopurinol 100 mg on alternate days, with no side effects, urea in the control range, slightly below normal uricuria...
June 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28693909/synthesis-and-evaluation-of-1-phenyl-1h-1-2-3-triazole-4-carboxylic-acid-derivatives-as-xanthine-oxidase-inhibitors
#20
Ting-Jian Zhang, Qing-Xia Wu, Song-Ye Li, Lin Wang, Qi Sun, Yi Zhang, Fan-Hao Meng, Hua Gao
This study mainly focused on the modification of the X(2) position in febuxostat analogs. A series of 1-phenyl-1H-1,2,3-triazole-4-carboxylic acid derivatives (1a-s) with an N atom occupying the X(2) position was designed and synthesized. Evaluation of their inhibitory potency in vitro on xanthine oxidase indicated that these compounds exhibited micromolar level potencies, with IC50 values ranging from 0.21µM to 26.13μM. Among them, compound 1s (IC50=0.21μM) showed the most promising inhibitory effects and was 36-fold more potent than allopurinol, but was still 13-fold less potent than the lead compound Y-700, which meant that a polar atom fused at the X(2) position could be unfavorable for potency...
June 23, 2017: Bioorganic & Medicinal Chemistry Letters
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