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uric acid,kidney,renal

Pedro H F Gois, Daniele Canale, Rildo A Volpini, Daniela Ferreira, Mariana M Veras, Vinicius Andrade-Oliveira, Niels O S Câmara, Maria H M Shimizu, Antonio C Seguro
BACKGROUND: Acute kidney injury (AKI) is the most severe complication of rhabdomyolysis. Allopurinol (Allo), a xanthine oxidase inhibitor, has been in the spotlight in the last decade due to new therapeutic applications related to its potent antioxidant effect. The aim of this study was to evaluate the efficacy of Allo in the prevention and treatment of rhabdomyolysis-associated AKI. METHODS: Male Wistar rats were divided into five groups: saline control group; prophylactic Allo (300mg/L of drinking water, 7 days); glycerol (50%, 5ml/kg, IM); prophylactic Allo + glycerol; and therapeutic Allo (50mg/Kg, IV, 30minutes after glycerol injection) + glycerol...
October 18, 2016: Free Radical Biology & Medicine
Ravindra D Hiremath, Sunil S Jalalpure
OBJECTIVE: Aim of this study is to evaluate antiurolithiatic potential of whole plant hydro-alcoholic (30:70) extract of Vernonia cinerea Less. in accordance to its claims made in ancient literature and also being one of the ingredients of cystone, a marketed formulation widely used in the management of urolithiasis. MATERIALS AND METHODS: To induce urolithiasis, 0.75% v/v ethylene glycol was administered orally for 14 days. The curative dose of 400 mg/kg b.w. and preventive doses of 100, 200, and 400 mg/kg b...
July 2016: Indian Journal of Pharmacology
Do Hee Kim, Hee Jin Kwon, Sang A Ji, Hye Ryoun Jang, Sin-Ho Jung, Jung-Han Kim, Jae Hyeon Kim, Jung Eun Lee, Wooseong Huh, Yoon-Goo Kim, Dae Joong Kim, Ha Young Oh
Primary aldosteronism (PA) may induce significant decline of renal function and structural damage of kidney. However, it is difficult to evaluate accurate renal function in patients with PA, because glomerular hyperfiltration and aldosterone escape can conceal renal impairment. In this retrospective cohort study, we compared changes in renal function after unilateral adrenalectomy between patients with PA and patients with other adrenal diseases. Risk factors associated with postoperative renal impairment in patients with PA were analyzed...
July 2016: Medicine (Baltimore)
Ran-Hui Cha, Hajeong Lee, Jung Pyo Lee, Chun Soo Lim, Yon Su Kim, Sung Gyun Kim
OBJECTIVE: Blood pressure (BP) control is the most established practice for preventing the progression of chronic kidney disease (CKD). We examined the BP control and nocturnal dipping pattern change in hypertensive patients with CKD and its effects on target organ damages. DESIGN AND METHOD: We recruited 378 hypertensive CKD patients from 4 centers in Korea. They underwent office and ambulatory BP monitoring at the time of enrollment and 1 year after. High office and ambulatory BP was defined as > 140/90 mmHg and > 135/85 mmHg (daytime)/> 120/70 mmHg (nighttime), respectively...
September 2016: Journal of Hypertension
Paul Simon, Aelna Krajčoviechová, Francois Harvey, Mousnif Haloui, Francois-Christophe Marois-Blanchet, John Chalmers, Mark Woodward, Michel Marre, Johanne Tremblay, Pavel Hamet
OBJECTIVE: We have previously reported the genetic determinants of unmet renal needs in Type 2 Diabetic (T2D) patients of the ADVANCE study (Abstract 0105-PD, IDF - World Diabetes Congress, Vancouver, 2015). We report here the external validation of several of these loci. An improved knowledge of the genetics linked to worsening diabetic nephropathy will offer insights on how to better manage this complication of diabetes and hypertension in T2D patients. DESIGN AND METHOD: We investigated 3,500 T2D patients of Caucasian origin included in the ADVANCE trial who were all treated with current standard therapies...
September 2016: Journal of Hypertension
Hua Chen, Gang Cao, Dan-Qian Chen, Ming Wang, Nosratola D Vaziri, Zhi-Hao Zhang, Jia-Rong Mao, Xu Bai, Ying-Yong Zhao
Early detection is critical in prevention and treatment of kidney disease. However currently clinical laboratory and histopathological tests do not provide region-specific and accurate biomarkers for early detection of kidney disease. The present study was conducted to identify sensitive biomarkers for early detection and progression of tubulo-interstitial nephropathy in aristolochic acid I-induced rats at weeks 4, 8 and 12. Biomarkers were validated using aristolochic acid nephropathy (AAN) rats at week 24, adenine-induced chronic kidney disease (CKD) rats and CKD patients...
September 28, 2016: Redox Biology
Imed-Eddine Kadi, Faouzi Dahdouh
Nickel is an abundant carcinogenic and nephrotoxic metal whose activity leads to renal impairment. Previous studies have shown a protective effect of simultaneous vitamin C administration on acute and chronic nickel toxicity. However, very little research relating to the effect of vitamin C pretreatment in preventing nickel-induced acute nephrotoxicity is available. Therefore, the present study aimed to determine the efficiency of vitamin C (VC) pretreatment in preventing acute renal toxicity of nickel. Mice were pretreated orally with vitamin C (16...
September 1, 2016: Arhiv za Higijenu Rada i Toksikologiju
Vasilios Tsimihodimos, Theodosios D Filippatos, Sebastian Fillippas-Ntekouan, Moses S Elisaf
Sodium-glucose co-transporter 2 inhibitors (SGLT-2) inhibitors) represent a new class of antidiabetic drugs that act through the inhibition of glucose and sodium reabsorption at proximal tubules. It has been shown that tThese substances may exhibit renonephroprotective properties, since they expressed clinically as a prevention of the deterioration of the glomerular filtration rate and a reductionreduce in the degree of albuminuria in patients with established diabetes-associated kidney disease. In this review we present in detail the pathophysiologic mechanisms that have been recently implicated in the rennephroprotective properties of SGLT-2 inhibitors...
October 7, 2016: Current Vascular Pharmacology
Yuta Matsukuma, Kosuke Masutani, Shigeru Tanaka, Akihiro Tsuchimoto, Kiichiro Fujisaki, Kumiko Torisu, Ritsuko Katafuchi, Hideki Hirakata, Kazuhiko Tsuruya, Takanari Kitazono
Recently, low serum uric acid (SUA) levels and high SUA levels, have emerged as risk factors for cardiovascular disease, as well as for the incidence of acute kidney injury and chronic kidney disease (CKD). However, the effect of low SUA on the progression of CKD remains unclear. To evaluate the association between SUA and renal prognosis in patients with immunoglobulin A nephropathy (IgAN), one of the most common causes of CKD, we retrospectively followed 1218 patients who were diagnosed with primary IgAN by kidney biopsy between October 1979 and December 2010...
October 13, 2016: Hypertension Research: Official Journal of the Japanese Society of Hypertension
Jae Hyun Jung, Gwan Gyu Song, Jong Dae Ji, Young Ho Lee, Jae-Hoon Kim, Young Ho Seo, Sung Jae Choi
Background/Aims: We performed this study to investigate associations between metabolic syndrome, chronic kidney disease (CKD), and gout. Methods: We reviewed the medical records of 151 patients with gout at the Department of Rheumatology in Korea University Ansan Hospital. The following measures were examined: waist circumference, blood pressure, alcohol consumption, and levels of triglyceride, high density lipoprotein cholesterol, fasting serum glucose, serum uric acid (SUA), creatinine, insulin, and C-peptide...
October 12, 2016: Korean Journal of Internal Medicine
Tianqiao Yong, Minglong Zhang, Diling Chen, Ou Shuai, Shaodan Chen, Jiyan Su, Chunwei Jiao, Delong Feng, Yizhen Xie
ETHNOPHARMACOLOGICAL RELEVANCE: Cordyceps militaris was recorded in the classic traditional Chinese medicine book with the main functions of "protecting liver and enhancing kidney functions", influencing serum uric acid levels. AIM OF STUDY: The aim is to investigate the hypouricemic effects and possible mechanism of C. militaris in hyperuricemic mice. MATERIALS AND METHODS: A water extract (WECM) was prepared by decocting C. militaris directly at 80 (o)C in water bath, followed by lyophilization...
October 4, 2016: Journal of Ethnopharmacology
Jeffrey Miner, Philip K Tan, David Hyndman, Sha Liu, Cory Iverson, Payal Nanavati, David T Hagerty, Kimberly Manhard, Zancong Shen, Jean-Luc Girardet, Li-Tain Yeh, Robert Terkeltaub, Barry Quart
BACKGROUND: Excess body burden of uric acid promotes gout. Diminished renal clearance of uric acid causes hyperuricemia in most patients with gout, and the renal urate transporter (URAT)1 is important for regulation of serum uric acid (sUA) levels. The URAT1 inhibitors probenecid and benzbromarone are used as gout therapies; however, their use is limited by drug-drug interactions and off-target toxicity, respectively. Here, we define the mechanism of action of lesinurad (Zurampic®; RDEA594), a novel URAT1 inhibitor, recently approved in the USA and Europe for treatment of chronic gout...
October 3, 2016: Arthritis Research & Therapy
Douglas I Walker, Karan Uppal, Luoping Zhang, Roel Vermeulen, Martyn Smith, Wei Hu, Mark P Purdue, Xiaojiang Tang, Boris Reiss, Sungkyoon Kim, Laiyu Li, Hanlin Huang, Kurt D Pennell, Dean P Jones, Nathaniel Rothman, Qing Lan
BACKGROUND: Occupational exposure to trichloroethylene (TCE) has been linked to adverse health outcomes including non-Hodgkin's lymphoma and kidney and liver cancer; however, TCE's mode of action for development of these diseases in humans is not well understood. METHODS: Non-targeted metabolomics analysis of plasma obtained from 80 TCE-exposed workers [full shift exposure range of 0.4 to 230 parts-per-million of air (ppma)] and 95 matched controls were completed by ultra-high resolution mass spectrometry...
October 5, 2016: International Journal of Epidemiology
Hyun Seon Kim, Sun Woo Lim, Long Jin, Jian Jin, Byung Ha Chung, Chul Woo Yang
BACKGROUND: The use of calcineurin inhibitors is a well-known risk factor for hyperuricemia in kidney transplant recipients. We evaluated the effect of febuxostat (Fx), a new uric acid-lowering drug, on hyperuricemia and renal injury in an experimental model of chronic tacrolimus (Tac)-induced nephropathy. METHODS: Chronic Tac nephropathy was induced by administering Tac (1.5 mg/kg/day) to rats on a low-salt diet (0.05%) with oxonic acid (OA, 2%, 0.2 g/kg/day) for 28 days...
October 5, 2016: Nephron
Reham Z Hamza, Hayat A A Ismail, Nahla S El-Shenawy
BACKGROUND: Dimethylnitrosamine (DMN) is a waste product of several industrial processes. Alpha-lipoic acid (ALA) is a vitamin-like chemical also called as an antioxidant. Therefore, the study was designed to investigate the potential benefits of ALA in reducing the nephropathy of DMN in male mice. METHODS: Animals were divided into 6 groups (n=8) and received their treatment for 4 weeks as follows: groups 1-4 served as control, ALA-treatment (16.12 mg/kg), DMN low dose treatment and DMN high dose treatment, respectively...
October 4, 2016: Journal of Basic and Clinical Physiology and Pharmacology
Samir G Mallat, Sahar Al Kattar, Bassem Y Tanios, Abdo Jurjus
Uric acid is a product of purine metabolism and has been linked to gout and kidney calculi. Chronic kidney disease (CKD) and hypertension (HTN) are two major public health problems, and both are associated with increased risk of cardiovascular events. Emerging evidence suggests a pathogenic role of hyperuricemia in the development of HTN and CKD, in addition to progression of CKD, by inducing renal inflammation, endothelial dysfunction, and activation of the renin-angiotensin system. In addition, several epidemiological studies have linked hyperuricemia with an increased risk of HTN and CKD...
October 2016: Current Hypertension Reports
Nina E Diana, Saraladevi Naicker
The prevalence of HIV-associated chronic kidney disease (CKD) varies geographically and depends on the definition of CKD used, ranging from 4.7% to 38% globally. The incidence, however, has decreased with the use of effective combined antiretroviral therapy (cART). A wide variety of histological patterns are seen in HIV-associated kidney diseases that include glomerular and tubulointerstitial pathology. In resource-rich settings, there has been a plateau in the incidence of end-stage renal disease secondary to HIV-associated nephropathy (HIVAN)...
2016: International Journal of Nephrology and Renovascular Disease
Silvia Lai, Mauro Ciccariello, Mira Dimko, Alessandro Galani, Silvio Lucci, Rosario Cianci, Amalia Mariotti
: Bakground/Aims: Cardiovascular diseases represent the leading causes of morbidity and mortality in patients with cronich kidney disease (CKD). The pathogenesis includes a complex, bidirectional interaction between heart and kidney termed cardiorenal syndrome type 4. The aim of study was to evaluate the association between renal and cardiovascular ultrasonographic parameters and identify early markers of cardiovascular risk. METHODS: A total of 35 patients with CKD and 25 healthy controls, were enrolled and we have evaluated inflammatory indexes, mineral metabolism, renal function, renal and cardiovascular ultrasonographic parameters...
September 26, 2016: Kidney & Blood Pressure Research
Tian Zuo, Lu Jiang, Shuai Mao, Xuehui Liu, Xin Yin, Liheng Guo
BACKGROUND: Hyperuricemia may be associated with an increased risk of contrast-induced acute kidney injury (CI-AKI). In recent years, studies about the relationship between them gradually appeared. We performed a systematic review and meta-analysis to investigate whether hyperuricemia is an independent risk factor for CI-AKI. METHODS: Relevant studies were searched in PubMed, Embase, Cochrane Library, and CBM (Chinese Biomedical Literature database) databases until April 18, 2016, without language restriction...
September 18, 2016: International Journal of Cardiology
Mushtaq Ahmad Ansari, Mohammad Raish, Ajaz Ahmad, Sheikh Fayaz Ahmad, Shahid Mudassar, Kazi Mohsin, Faiyaz Shakeel, Hesham M Korashy, Saleh A Bakheet
AIMS: In this study, the renoprotective functions of sinapic acid (SA), a polyphenol, on gentamicin-induced nephrotoxicity and the pathway that mediates this function were examined. MAIN METHODS: Kidney function markers (serum urea, uric acid, creatinine, LDH, and γ-GGT) and histopathological examinations of the kidney were used to evaluate gentamicin-induced nephrotoxicity. Oxidative stress markers (lipid peroxidation and total protein), renal nitrosative stress (nitric oxide), antioxidant enzymes (catalase and NP-SH), inflammation markers (NF-κB [p65], TNF-α, IL-6, and myeloperoxidase [MPO]), and apoptotic markers (caspase 3, Bax, and Bcl-2) were also assessed...
September 21, 2016: Life Sciences
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