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https://www.readbyqxmd.com/read/29775856/a-simple-ultrasensitive-electrochemical-sensor-for-simultaneous-determination-of-gallic-acid-and-uric-acid-in-human-urine-and-fruit-juices-based-on-zirconia-choline-chloride-gold-nanoparticles-modified-carbon-paste-electrode
#1
Seyed Alireza Shahamirifard, Mehrorang Ghaedi, Zahra Razmi, Shaaker Hajati
The determination of gallic acid (GA) and uric acid (UA) is essential due to their biological properties. Numerous methods have been reported for the analysis of GA and UA in various real samples. However, the development of a simple, rapid and practical sensor still remains a great challenge. Here, a carbon paste electrode (CPE) was modified by nanocomposite containing zirconia nanoparticles (ZrO2 NPs), Choline chloride (ChCl) and gold nanoparticles (AuNPs) to construct ZrO2 -ChCl-AuNPs/CPE as electrochemical sensor for the simultaneous electro-oxidation of GA and UA...
May 8, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29775647/exposure-to-imipenem-cilastatin-causes-nephrotoxicity-and-even-urolithiasis-in-wistar-rats
#2
Amal Tahri, Amina Lahyani, Rim Kallel, Fatma Ayadi, Tahia Boudawara, Zouheir Sahnoun
Imipenem/cilastatin is a broad-spectrum β-lactam antibiotic used to treat several bacterial infections. The present study was designed to validate the nephrotoxic effect of this drug in rats and to explore its potentional urolithiatic effect. Thirty two Wistar rats were randomly divided into four groups: three experimental groups treated with different imipenem/cilastatin dosages (30, 50 and 80 mg/kg/day) and a control group.The experimental groups were given intraperitoneal imipenem/cilastatin injections twice daily for 7 days, and the control group was given intraperitoneal vehicle NaCl 0...
May 15, 2018: Toxicology
https://www.readbyqxmd.com/read/29775238/comparison-of-creatinine-index-and-geriatric-nutritional-risk-index-for-nutritional-evaluation-of-patients-with-hemodialysis
#3
Wonsun Hwang, Mi Sook Cho, Ji Eun Oh, Ji Hyun Lee, Jong Cheol Jeong, Gyu-Tae Shin, Heungsoo Kim, Inwhee Park
INTRODUCTION: Malnutrition is prevalent in hemodialysis (HD) patients, and the risk of mortality is strongly correlated with malnutrition. Current methods of nutritional evaluation are mostly subjective, time-consuming, and cumbersome. Creatinine index (CI) and geriatric nutritional risk index (GNRI) are very simple and objective methods to assess the nutritional status of HD patients. The present study compares the performance of CI and GNRI as nutritional risk assessment tools. METHODS: Eighty-eight patients with end-stage renal disease on HD were recruited from a single tertiary center...
May 18, 2018: Hemodialysis International
https://www.readbyqxmd.com/read/29774469/higher-serum-levels-of-uric-acid-are-associated-with-a-reduced-insulin-clearance-in-non-diabetic-individuals
#4
Teresa Vanessa Fiorentino, Franz Sesti, Elena Succurro, Elisabetta Pedace, Francesco Andreozzi, Angela Sciacqua, Marta Letizia Hribal, Francesco Perticone, Giorgio Sesti
AIMS: Decreased insulin clearance has been reported to be associated with insulin resistance-related disorders and incident type 2 diabetes. The aim of this study was to evaluate whether higher levels of uric acid (UA), a known risk factor of type 2 diabetes, are associated with a reduced insulin clearance. METHODS: 440 non-diabetic individuals were stratified in tertiles according to serum UA levels. Insulin clearance and skeletal muscle insulin sensitivity were assessed by euglycemic hyperinsulinemic clamp...
May 17, 2018: Acta Diabetologica
https://www.readbyqxmd.com/read/29774210/hypertension-in-children-role-of-obesity-simple-carbohydrates-and-uric-acid
#5
REVIEW
Antonina Orlando, Emanuela Cazzaniga, Marco Giussani, Paola Palestini, Simonetta Genovesi
Over the past 60 years there has been a dramatic increase in the prevalence of overweight in children and adolescents, ranging from 4% in 1975 to 18% in 2016. Recent estimates indicate that overweight or obese children and adolescents are more than 340 million. Obesity is often associated with hypertension, which is an important cardiovascular risk factor. Recent studies show that the presence of hypertension is a frequent finding in the pediatric age. Hypertensive children easily become hypertensive adults...
2018: Frontiers in Public Health
https://www.readbyqxmd.com/read/29773847/association-between-urinary-sodium-excretion-and-uric-acid-and-its-interaction-on-the-risk-of-prehypertension-among-chinese-young-adults
#6
Yang Wang, Jia-Wen Hu, Peng-Fei Qu, Ke-Ke Wang, Yu Yan, Chao Chu, Wen-Ling Zheng, Xian-Jing Xu, Yong-Bo Lv, Qiong Ma, Ke Gao, Yue Yuan, Hao Li, Zu-Yi Yuan, Jian-Jun Mu
High uric acid (UA) level and high salt intake are reportedly associated with cardiovascular disease. This study investigated the association between UA and urinary sodium excretion, as well as its interaction on the risk of prehypertension. A total of 1869 participants without hypertension were recruited from a previously established cohort in Shaanxi Province, China. The participants were classified as normotensive or prehypertensive on the basis of their blood pressure. Increasing quartiles of sodium excretion were associated with high urinary UA/creatinine levels in prehypertensive participants...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29771707/electrolytes-and-biochemical-changes-in-cerebrospinal-fluid-in-drowning-experimental-rabbit-model
#7
Melad G Paulis, Eman I Hasan
The diagnosis of drowning is still a difficult task in forensic science. Biochemical changes in different body fluids have been examined for the identification of drowning. However, none of them alone gives accurate results in the diagnosis of drowning and differentiation of saltwater and freshwater drowning. This study aimed to examine cerebrospinal fluid changes in drowned rabbits. Six groups of rabbits were used including immersed dead rabbits in freshwater or saltwater (as control groups), alive fully conscious rabbits drowned in freshwater and saltwater, and anesthetized rabbits drowned in freshwater and saltwater...
May 15, 2018: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29770928/body-adiposity-index-lipid-accumulation-product-and-cardiometabolic-index-reveal-the-contribution-of-adiposity-phenotypes-in-the-risk-of-hyperuricemia-among-chinese-rural-population
#8
Haoyu Wang, Yingxian Sun, Shuze Wang, Hao Qian, Pengyu Jia, Yintao Chen, Zhao Li, Lijun Zhang
Adiposity phenotypes, estimated by higher body adiposity index (BAI), lipid accumulation product (LAP), and cardiometabolic index (CMI), has conferred increased metabolic risk. The relative contribution of BAI, LAP, and CMI in hyperuricemia, however, is unknown. We hypothesized that these obesity indicators would refine identification of hyperuricemia. Information on serum uric acid (SUA), fasting lipid profiles, and body adiposity measures (BAI, LAP, and CMI) were recorded in a cross-sectional population-based sample of 11,102 participants (≥ 35 years old) from China...
May 16, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29767695/molybdenum
#9
Janet A Novotny, Catherine A Peterson
Molybdenum, a trace element essential for micro-organisms, plants, and animals, was discovered in 1778 by a Swedish chemist named Karl Scheele. Initially mistaken for lead, molybdenum was named after the Greek work molybdos, meaning lead-like. In the 1930s, it was recognized that ingestion of forage with high amounts of molybdenum by cattle caused a debilitating condition. In the 1950s, the essentiality of molybdenum was established with the discovery of the first molybdenum-containing enzymes. In humans, only 4 enzymes requiring molybdenum have been identified to date: sulfite oxidase, xanthine oxidase, aldehyde oxidase, and mitochondrial amidoxime-reducing component (mARC)...
May 1, 2018: Advances in Nutrition
https://www.readbyqxmd.com/read/29766812/switching-dipeptidyl-peptidase-4-inhibitors-to-tofogliflozin-a-selective-inhibitor-of-sodium-glucose-cotransporter-2-improves-arterial-stiffness-evaluated-by-cardio-ankle-vascular-index-in-patients-with-type-2-diabetes
#10
Nobuhiro Tahara, Sho-Ichi Yamagish, Munehisa Bekki, Atsuko Tahara, Sachiyo Igata, Akihiro Honda, Yoichi Sugiyama, Tomohisa Nakamura, Jiahui Sun, Yuki Kumashiro, Takanori Matsui, Yoshihiro Fukumoto
BACKGROUND: We have found that anagliptin, a dipeptidyl peptidase-4 inhibitor (DPP-4) significantly ameliorates arterial stiffness in type 2 diabetes mellitus (T2DM) patients compared with an equivalent hypoglycemic agent, glimepiride. However, it remains unclear whether and how switching DPP-4 inhibitors to tofogliflozin, a selective inhibitor of sodium-glucose cotransporter 2 (SGLT2) improves arterial stiffness in T2DM patients. METHODS: Nineteen T2DM patients who had received DPP-4 inhibitors for at least 1 year were enrolled in this study...
May 15, 2018: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/29765172/dietary-sucrose-regulates-the-expression-of-the-cd36-gene-in-hepatic-tissue-of-rats-with-obesity-and-non-alcoholic-fatty-liver-disease-nafld
#11
Rodolfo Quintana Castro, Ida Soto Rodriguez, Rosa A Deschamps Lago, Peter Grube Pagola, Jorge Rodriguez Antolin, Adriana Peres Quintal, Jaime Rivera Rivera, Alfonso Alexander Aguilera
AIM: To evaluate the mRNA expression levels of Cd36 in adipose and hepatic tissues, in rats with NAFLD after the consumption of sucrose for 10 and 20 weeks. METHODS: Twenty Wistar rats, all nearly 21 days old were divided into two experimental groups (NAFLD-10 and NAFLD-20), that received a standard diet (2014 Teklad Global) plus 30% sucrose in their drinking water for 10 and 20 weeks and the control groups (C Groups). Variables such as body weight, food intakes, and serum parameters were measured...
May 15, 2018: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/29764035/-relationship-between-hyperuricemia-and-prognosis-in-patients-with-heart-failure-of-coronary-heart-disease-after-revascularization
#12
D Peng, S P Wang, D H Zhao, Q C Fan, J Shu, J H Liu
Objective: To explore the effect of hyperuricemia on prognosis in patients with heart failure of coronary heart disease (CHD) after revascularization. Methods: A single-center retrospective study of all subjects who underwent percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) as revascularization for CHD at Beijing Anzhen Hospital, Capital Medical University, between January 2005 and December 2014 was performed.Patients were divided into two groups by with or without hyperuricemia...
May 8, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29761900/fenofibrate-improves-renal-function-by-amelioration-of-nox-4-il-18-and-p53-expression-in-an-experimental-model-of-diabetic-nephropathy
#13
Habib Yaribeygi, Mohammad T Mohammadi, Ramin Rezaee, Amirhossein Sahebkar
Among several pathological mechanisms involved in diabetic nephropathy, oxidative stress, inflammation, and apoptosis play a prominent role. Fenofibrate, a peroxisome proliferator-activated receptor-α (PPAR-α) agonist, has markedly improved oxidative stress and inflammatory responses, but there is no evidence about its effects on interleukin-18 (IL-18), NADPH oxidase type 4 (NOX-4), and p53 expression in diabetic kidneys. The aim of this study was to evaluate possible effects of fenofibrate on improving the underlying mechanisms of diabetic nephropathy...
May 15, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29761242/safety-and-efficacy-of-benzbromarone-and-febuxostat-in-hyperuricemia-patients-with-chronic-kidney-disease-a-prospective-pilot-study
#14
Haibo Yu, Xinying Liu, Yaxiang Song, Jiafen Cheng, Hui Bao, Ling Qin, Xuan Zhou, Ling Wang, Ai Peng
BACKGROUND: To compare the safety and efficacy of benzbromarone and febuxostat in hyperuricemia patients with estimated glomerular filtration rate (eGFR) 20-60 mL/min/1.73 m2 . METHODS: This study was a single-centered, parallel-grouped, randomized clinical trial (RCT). We randomly assigned hyperuricemia participants with eGFR 20-60 mL/min/1.73 m2 into benzbromarone and febuxostat treatment group. Drugs were adjusted by titration from small doses. RESULTS: Seventy-three eligible participants enrolled, 66 subjects (33 in each group) were included finally for analysis...
May 14, 2018: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29761226/renal-stone-composition-does-not-affect-the-outcome-of-percutaneous-nephrolithotomy-in-children
#15
Onur Kaygısız, Fethi Ahmet Türegün, Nihat Satar, Ender Özen, Serdar Toksöz, Hasan Serkan Doğan, Mehmet Mesut Pişkin, Volkan İzol, Şaban Sarıkaya, Hakan Kılıçarslan, Tufan Çiçek, Ahmet Öztürk, Serdar Tekgül, Bülent Önal
PURPOSE: We sought to investigate the association between renal stone composition and percutaneous nephrolithotomy outcomes in pediatric patients and define the characterization of the stone composition. METHODS: The data of 1157 children who underwent percutaneous nephrolithotomy between 1991 and 2012 were retrieved from the multicenter database of the Turkish Pediatric Urology Society. The study population comprised 359 children (160 girls, 199 boys) with stone analyses...
May 14, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29759240/reduced-graphene-oxide-zno-nanocomposite-based-electrochemical-sensor-for-sensitive-and-selective-monitoring-of-8-hydroxy-2-deoxyguanosine
#16
Junxing Hao, Kangbing Wu, Chidan Wan, Yong Tang
Developing reliable and feasible electrochemical sensors for the detection of 8-hydroxy-2'-deoxyguanosine (8-OHdG) is important because the urinary level of 8-OHdG is related to cancer disease. Moreover, the co-existed uric acid (UA) as an interference severe affects the sensitive detection of 8-OHdG. Herein, sensitive monitoring of 8-OHdG was conducted using a nanocomposite of reduced graphene oxide (rGO) and ZnO nanoparticles (ZnO@rGO) as the sensing material. This nanocomposite was prepared via in-situ reduction of GO with Zn powders...
August 1, 2018: Talanta
https://www.readbyqxmd.com/read/29759224/enhancing-the-peroxidase-like-activity-of-ficin-via-heme-binding-and-colorimetric-detection-for-uric-acid
#17
Yadi Pan, Yufang Yang, Yanjiao Pang, Ying Shi, Yijuan Long, Huzhi Zheng
Ficin, a classical sulfhydryl protease, was found to possess intrinsic peroxidase-like activity. In this paper, we have put forward a novel strategy to improving the peroxidase-like activity of ficin through binding heme. Heme-ficin complexes were successfully obtained by simple one-step syntheticism. The results demonstrated that the catalytic activity and efficiency of heme-ficin complexes were about 1.7 times and 3 times higher than those of native ficin, respectively. Taking advantages of the high peroxidase-like activity, the heme-ficin complexes were used for colorimetric determination of uric acid with a low detection limit of 0...
August 1, 2018: Talanta
https://www.readbyqxmd.com/read/29759190/simultaneous-voltammetry-detection-of-dopamine-and-uric-acid-in-human-serum-and-urine-with-a-poly-procaterol-hydrochloride-modified-glassy-carbon-electrode
#18
Dexian Kong, Qizhao Zhuang, Yejian Han, Lanping Xu, Zeming Wang, Lili Jiang, Jinwei Su, Chun-Hua Lu, Yuwu Chi
In the present study, procaterol hydrochloride (ProH) was successfully electropolymerized onto a glass carbon electrode (GCE) with simply cyclic voltammetry scans to construct a poly(procaterol hydrochloride) (p-ProH) membrane modified electrode. Compared with the bare GCE, much higher oxidation peak current responses and better peak potentials separation could be obtained for the simultaneous oxidation of dopamine (DA) and uric acid (UA), owning to the excellent electrocatalytic ability of the p-ProH membrane...
August 1, 2018: Talanta
https://www.readbyqxmd.com/read/29759111/a-dietary-pattern-rich-in-animal-organ-seafood-and-processed-meat-products-is-associated-with-newly-diagnosed-hyperuricaemia-in-chinese-adults-a-propensity-score-matched-case-control-study
#19
Yang Xia, Qi Xiang, Yeqing Gu, Suwei Jia, Qing Zhang, Li Liu, Ge Meng, Hongmei Wu, Xue Bao, Bin Yu, Shaomei Sun, Xing Wang, Ming Zhou, Qiyu Jia, Yuntang Wu, Kun Song, Kaijun Niu
Previous studies have indicated that some food items and nutrients are associated with uric acid metabolism in humans. However, little is known about the role of dietary patterns in hyperuricaemia. We designed this case-control study to evaluate the associations between dietary patterns and newly diagnosed hyperuricaemia in Chinese adults. A total of 1422 cases and 1422 controls were generated from 14 538 participants using the 1:1 ratio propensity score matching methods. Dietary intake was assessed using a validated self-administered FFQ...
May 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/29756965/visceral-adiposity-index-associated-with-behavioral-and-inflammatory-parameters-in-adults-a-population-based-study
#20
Fabrícia Geralda Ferreira, Wellington Segheto, Danielle Cristina Guimarães Da Silva, Patricia Feliciano Pereira, Giana Zarbato Longo
INTRODUCTION: the visceral adiposity index (VAI) is an indicator of fat distribution and function which is considered a predictor of cardiometabolic risk. OBJECTIVE: analyze the factors associated with VAI in Brazilian adults. METHODS: a cross-sectional population-based study was conducted with 854 adults, in Viçosa, MG, Brazil. A questionnaire was applied and anthropometric measurements, body composition and biochemical data were collected...
January 18, 2018: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
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