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Uric acid antioxidant

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https://www.readbyqxmd.com/read/28811749/acute-cocoa-flavanols-intake-has-minimal-effects-on-exercise-induced-oxidative-stress-and-nitric-oxide-production-in-healthy-cyclists-a-randomized-controlled-trial
#1
Lieselot Decroix, Cajsa Tonoli, Danusa Dias Soares, Amandine Descat, Marie-José Drittij-Reijnders, Antje R Weseler, Aalt Bast, Wilhelm Stahl, Elsa Heyman, Romain Meeusen
BACKGROUND: Cocoa flavanols (CF) can stimulate vasodilation by improved nitric oxide (NO) synthesis and have antioxidant and anti-inflammatory capacities. This study aimed to examine whether acute CF intake can affect exercise-induced changes in antioxidant capacity, oxidative stress, inflammation and NO production, as well as exercise performance and recovery in well-trained cyclists. METHODS: Twelve well-trained male cyclists (mean ± SD age, VO2max: 30 ± 3 years, 63...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28811693/beneficial-effect-of-aqueous-garlic-extract-on-inflammation-and-oxidative-stress-status-in-the-kidneys-of-type-1-diabetic-rats
#2
Abolfazl Nasiri, Nasrin Ziamajidi, Roghayeh Abbasalipourkabir, Mohammad Taghi Goodarzi, Massoud Saidijam, Hamid Behrouj, Sara Solemani Asl
One of the most important complications of diabetes is nephropathy. This study investigates the effects of aqueous garlic extract on inflammation and oxidative stress status in the kidneys of diabetic rats. Male rats were divided into four groups- control rats, diabetic rats, garlic extract-treated diabetic rats, garlic extract-treated normal rats. The glucose, urea, uric acid, and creatinine levels were measured in sera using colorimetric methods. To determine the oxidative stress condition in the kidney tissues, total antioxidant capacity (TAC), malondialdehyde (MDA), and total oxidant status (TOS) were measured using colorimetric methods...
July 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28811692/experimental-validation-of-antidiabetic-and-antioxidant-potential-of-cassia-tora-l-an-indigenous-medicinal-plant
#3
Vishnu Kumar, Ranjana Singh, Farzana Mahdi, Abbas Ali Mahdi, Raj Kumar Singh
The present study was undertaken to evaluate antidiabetic and antioxidant activities of Cassia tora (C. tora) seeds extract against streptozotocin induced diabetes in experimental rats to scientifically validate its use against diabetes. Ethanolic extract of C. tora seeds extract and standard drug (glibenclamide) prepared in aqueous gum acacia (2 %, w/v) suspension and fed orally to streptozotocin induced male adult diabetic rats of Charles Foster strain for 15 days. Biochemical parameters in normal, diabetic control, standard (600 μg/kg bw p...
July 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28811686/influence-of-the-flavonoid-quercetin-on-antioxidant-status-lipid-peroxidation-and-histopathological-changes-in-hyperammonemic-rats
#4
Sivamani Kanimozhi, Pakkiri Bhavani, Perumal Subramanian
We have studied the ability of quercetin (a bioflavonoid) in tackling oxidative stress to alleviate the symptoms during ammonium chloride-induced hyperammonemia. Hyperammonemia was induced by the treatment of ammonium chloride (AC) 100 mg/kg b.w for 56 days. Hyperammonemic rats exhibited reduced urea (in plasma) and increased ammonia (in blood), uric acid (in plasma), creatinine (in serum), oxidative stress markers (thiobarbituric acid reactive substances (TBARS) and hydroperoxides (HP) and decreased levels of antioxidants (enzymatic and non-enzymatic) superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), reduced glutathione (GSH) in plasma and tissues (liver and brain) vitamins E and C (in plasma))...
July 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28810533/deltamethrin-induced-oxidative-stress-in-kidney-and-brain-of-rats-protective-effect-of-artemisia-campestris-essential-oil
#5
Mongi Saoudi, Riadh Badraoui, Houda Bouhajja, Marwa Ncir, Fatma Rahmouni, Malek Grati, Kamel Jamoussi, Abdelfattah El Feki
Artemisia campestris (Asteraceae) is widely used in traditional medicine in Southern Tunisia as a decoction for its antivenom, anti-inflammatory, antirheumatic, and antimicrobial activities. A. campestris essential oil (ACEO) was obtained by hydrodistillation from the aerial parts, since it has beneficial and therapeutic effects. Deltamethrin is a synthetic pyrethroid with broad spectrum activities against acaricides and insects and widely used for veterinary and agricultural purposes. Exposure to deltamethrin leads to nephrotoxic and neurotoxic side effects for human and many species including birds and fish...
August 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28808392/antiurolithiatic-effect-of-sirupeelai-samoola-kudineer-a-polyherbal-siddha-decoction-on-ethylene-glycol-induced-renal-calculus-in-experimental-rats
#6
A Hannah Rachel Vasanthi, V Muthulakshmi, V Gayathri, R Manikandan, S Ananthi, Sarah Kuruvilla
BACKGROUND: Sirupeelai Samoola Kudineer (SK), a polyherbal decoction containing four medicinal plants has been used in Siddha system of medicine, practiced in Southern parts of India for the management of urolithiasis. OBJECTIVE: The present study is carried out to scientifically validate the traditional claim and to study the mechanism of action of the drug. MATERIALS AND METHODS: In the present study, anti-urolithiatic effect of SK was evaluated in Sprague-Dawley rats using ethylene glycol through drinking water and intraperitoneal injection of sodium oxalate...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28804532/associations-between-specific-redox-biomarkers-and-age-in-a-large-european-cohort-the-mark-age-project
#7
Daniela Weber, Wolfgang Stuetz, Olivier Toussaint, Florence Debacq-Chainiaux, Martijn E T Dollé, Eugène Jansen, Efstathios S Gonos, Claudio Franceschi, Ewa Sikora, Antti Hervonen, Nicolle Breusing, Thilo Sindlinger, María Moreno-Villanueva, Alexander Bürkle, Tilman Grune
Oxidative stress and antioxidants play a role in age-related diseases and in the aging process. We here present data on protein carbonyls, 3-nitrotyrosine, malondialdehyde, and cellular and plasma antioxidants (glutathione, cysteine, ascorbic acid, uric acid, α-tocopherol, and lycopene) and their relation with age in the European multicenter study MARK-AGE. To avoid confounding, only data from countries which recruited subjects from all three study groups (five of eight centers) and only participants aged ≥55 years were selected resulting in data from 1559 participants...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28801272/low-serum-uric-acid-levels-in-chronic-insomnia-patients-a-case-control-study
#8
Kai Zhao, Xiaoqian Luan, Zhihua Liu, Zhuoying Zhu, Huijun Chen, Huiping Shen, Yan Cai, Huihua Qiu, Qiongzhang Wang, Yingying Gu, Lin Zhu, Jincai He
Recent studies have demonstrated the presence of oxidative stress in insomnia patients. Uric acid (UA) is regarded as one of the most important antioxidants that may attenuate oxidative stress. The aim of our study was to investigate whether there is an alteration of serum UA levels in chronic insomnia patients. The association between sleep quality and serum UA in chronic insomnia patients was also investigated. We recruited 300 chronic insomnia patients and 300 age- and gender-matched normal controls. The uricase-PAP method was used to measure the concentration of UA both in patient and normal control subjects...
August 8, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28798859/amelioration-of-abnormalities-associated-with-the-metabolic-syndrome-by-spinacia-oleracea-spinach-consumption-and-aerobic-exercise-in-rats
#9
Vandana Panda, Kinjal Mistry, S Sudhamani, Mukesh Nandave, Shreesh Kumar Ojha
The present study evaluates the protective effects of an antioxidant-rich extract of Spinacea oleracea (NAOE) in abnormalities associated with the metabolic syndrome (MetS) in rats. HPTLC of NAOE revealed the presence of 13 total antioxidants, 14 flavonoids, and 10 phenolic acids. Rats administered with fructose (20% w/v) in drinking water for 45 days to induce abnormalities of MetS received NAOE (200 and 400 mg/kg, po), the standard drug gemfibrozil (60 mg/kg, po), aerobic exercise (AE), and a combination of NAOE 400 mg/kg and AE (NAOEAE) daily for 45 days...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28774949/renoprotective-effect-of-topiroxostat-via-antioxidant-activity-in-puromycin-aminonucleoside-nephrosis-rats
#10
Yosuke Kawamorita, Takeshi Shiraishi, Yoshifuru Tamura, Takanori Kumagai, Shigeru Shibata, Yoshihide Fujigaki, Makoto Hosoyamada, Takahiko Nakagawa, Shunya Uchida
Topiroxostat is a novel inhibitor of xanthine oxidase, and is postulated to exert a renoprotective effect. Puromycin aminonucleoside nephrosis (PAN) is a rat model of minimal change nephrotic syndrome. In this study, we examined whether topiroxostat ameliorates the kidney injury in PAN rats that was induced by a single intraperitoneal injection of PA (100 mg/kg body weight). Rats were divided into four groups: control rats, PAN rats, control rats treated with topiroxostat (1.0 mg/kg/day), and PAN rats treated with topiroxostat...
August 2017: Physiological Reports
https://www.readbyqxmd.com/read/28761638/mean-platelet-volume-and-serum-uric-acid-in-neonatal-sepsis-a-case-control-study
#11
Mohsen M Shalaby, Ahmad A Sobeih, Waleed E Abdulghany, Eman G Behiry, Yasser M Ismail, Mahmoud A Abd-El-Aziz
BACKGROUND: Mean platelet volume (MPV) is a measure of platelet volume. It reveals the presence of inflammatory burden and disease activity in many diseases. Serum uric acid (SUA) is one of the most important antioxidants in human biological fluids and is responsible for neutralizing > 50% of the free radicals in the human blood. For this reason, it was thought that the antioxidant effects of SUA could increase the life expectancy and/or reduce the incidence of malignancy. OBJECTIVES: To determine the role of mean platelet volume (MPV) and serum uric acid (SUA) level in the diagnosis of neonatal sepsis (NS)...
August 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28758938/effects-of-pomegranate-juice-supplementation-on-oxidative-stress-biomarkers-following-weightlifting-exercise
#12
Achraf Ammar, Mouna Turki, Omar Hammouda, Hamdi Chtourou, Khaled Trabelsi, Mohamed Bouaziz, Osama Abdelkarim, Anita Hoekelmann, Fatma Ayadi, Nizar Souissi, Stephen J Bailey, Tarak Driss, Sourour Yaich
The aim of this study was to test the hypothesis that pomegranate juice supplementation would blunt acute and delayed oxidative stress responses after a weightlifting training session. Nine elite weightlifters (21.0 ± 1 years) performed two Olympic-Weightlifting sessions after ingesting either the placebo or pomegranate juice supplements. Venous blood samples were collected at rest and 3 min and 48 h after each session. Compared to the placebo condition, pomegranate juice supplementation attenuated the increase in malondialdehyde (-12...
July 29, 2017: Nutrients
https://www.readbyqxmd.com/read/28756960/influence-of-apical-periodontitis-on-stress-oxidative-parameters-in-diabetic-rats
#13
Annelise Katrine Carrara Prieto, João Eduardo Gomes-Filho, Mariane Maffei Azuma, Gustavo Sivieri-Araújo, Luis Gustavo Narciso, Jucilene Conceição Souza, Paulo César Ciarlini, Luciano Tavares Angelo Cintra
INTRODUCTION: In this study, we investigated if apical periodontitis (AP) associated with diabetes influenced the levels of endogenous antioxidants, the total antioxidant capacity (TAC), and the oxidant parameter in the serum of Wistar rats. METHODS: Forty male rats were divided into 4 equal groups: normal rats (N), rats with AP (AP), diabetic rats (D), and diabetic rats with AP (D + AP). Diabetes was induced by alloxan (150 mg/kg). AP was induced by exposing the pulpal tissue to the oral environment...
July 27, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28747144/abcg2-c-421c-a-is-associated-with-outcomes-following-severe-traumatic-brain-injury
#14
Solomon M Adams, Yvette P Conley, Dianxu Ren, David O Okonkwo, Ava Puccio, C Edward Dixon, Robert Sb Clark, Patrick M Kochanek, Philip E Empey
Traumatic brain injury (TBI) is a leading cause of death with no pharmacologic treatments that improve outcomes. Transporter proteins participate in TBI recovery by maintaining the CNS biochemical milieu. Genetic variations in transporters that alter expression and/or function have been associated with TBI outcomes. The ATP-binding cassette transporter, ABCG2, is a uric acid (UA) transporter that effluxes UA from cells in the CNS and is responsible for systemic UA clearance. Uric acid is a CNS antioxidant and/or a biomarker that might support TBI recovery...
July 26, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28741978/effects-of-co-exposure-to-atrazine-and-ethanol-on-the-oxidative-damage-of-kidney-and-liver-in-wistar-rats
#15
Sunny O Abarikwu, Queen C Duru, Rex-Clovis C Njoku, Benjamin A Amadi, Aseme Tamunoibuomie, Enebimoere Keboh
Both ethanol (EtoH) and atrazine (ATZ) have hepatic and nephro-toxic effects in rats. In the present study, the toxicity of EtoH (5 g kg(-1)) on the kidney and liver in the absence or in the presence of different doses of ATZ (50, 100, 300 mg kg(-1)) was evaluated after 21 days in rats. Results showed that the mixture effects on catalase and superoxide dismutase activities were more severe in both tissues compared to EtoH alone, especially as the dose of ATZ was increased. Hepatic malondialdehyde level (an index of lipid peroxidation) was increased from 20...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28741959/effect-of-epigallocatechin-gallate-on-growth-performance-and-antioxidant-capacity-in-heat-stressed-broilers
#16
Bo Xue, Jiao Song, Longzhou Liu, Jingxian Luo, Guangming Tian, Ye Yang
This study investigated the effects of epigallocatechin gallate (EGCG) on the growth performance and antioxidant capacity of 35-d-old broilers exposed to heat stress. Broilers, 14 d of age, were divided into four groups with six replicates per group (eight chickens/replicate). Thermoneutral group (Group TN) was fed the basal diet and maintained at 28°C for 24 h/d. The heat-stressed groups were housed at 35°C for 12 h/d and 28°C for 12 h/d and fed the basal diet supplemented with EGCG at 0, 300 and 600 mg/kg diet (Groups HS0, HS 300 and HS600, respectively)...
July 25, 2017: Archives of Animal Nutrition
https://www.readbyqxmd.com/read/28737427/the-effect-of-different-dietary-levels-of-dl-methionine-and-dl-methionine-hydroxy-analogue-on-the-antioxidant-and-immune-status-of-young-turkeys
#17
Zenon Zduńczyk, Jan Jankowski, Magdalena Kubińska, Katarzyna Ognik, Anna Czech, Jerzy Juśkiewicz
The hypothesis postulating that the antioxidant and immunological effects of dietary methionine (Met) in young turkeys (1-8 weeks of age) can be differentiated by level and source of Met was investigated in this study. A total of 544 female Hybrid Converter turkeys were divided into four groups and fed diets in which Met content was tailored through supplementation with dl-methionine (dl-Met) or dl-methionine hydroxy analogue (MHA) to levels recommended by NRC (1994) (Groups dl-MetL and MHAL) and exceeding them by 50% (Groups dl-MetH and MHAH)...
July 24, 2017: Archives of Animal Nutrition
https://www.readbyqxmd.com/read/28735578/age-related-differences-of-semen-quality-seminal-plasma-and-spermatozoa-antioxidative-and-oxidative-stress-variables-in-bulls-during-cold-and-warm-periods-of-the-year
#18
S Vince, I Žura Žaja, M Samardžija, I Majić Balić, M Vilić, D Đuričić, H Valpotić, F Marković, S Milinković-Tur
The aims of this study were to determine the presence and quantities of antioxidative status and oxidative stress (OS) variables in the seminal plasma and spermatozoa of bulls of varying age during cold and warm periods of the year, and to establish the correlation of these variables with semen quality parameters. The study was conducted on two groups each comprising nine Simmental bulls: one group contained younger animals (aged 2 to 4 years) and the second older animals (aged 5 to 10 years). Semen samples were collected using an artificial vagina for biochemical analysis...
July 24, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28720209/the-influence-of-oxazaphosphorine-agents-on-kidney-function-in-rats
#19
Łukasz Dobrek, Beata Skowron, Agnieszka Baranowska, Klaudia Płoszaj, Dorota Bądziul, Piotr Thor
BACKGROUND AND OBJECTIVE: The application of cytostatic oxazaphosphorines such as cyclophosphamide (CP) and ifosfamide (IF) is associated with the risk of kidney damage that, depending on the type of drug, dose and route of administration, adopts a different clinical entity and severity. The aim of our study was to assess the influence of CP and IF on the kidney histology and function in rats intraperitoneally treated with four doses of either CP or IF. MATERIALS AND METHODS: A total of 30 rats were divided into three groups (10 in each group): group 1 (control), sham treated with saline solution, group 2 (treated with 75mg/kg b...
July 2, 2017: Medicina
https://www.readbyqxmd.com/read/28717317/effect-of-season-on-physiological-biochemical-hormonal-and-oxidative-stress-parameters-of-indigenous-sheep
#20
Sawankumar D Rathwa, A A Vasava, M M Pathan, S P Madhira, Y G Patel, A M Pande
AIM: This study was conducted to evaluate the impact of summer and winter season on physiological, biochemical, hormonal, and antioxidant parameters in Indigenous sheep. MATERIALS AND METHODS: The research was carried out during summer and winter season. 8 adult apparently healthy female sheep (aged 2-4 years) of similar physiological status were selected. Daily ambient temperature and relative humidity were recorded to calculate the temperature-humidity index (THI)...
June 2017: Veterinary World
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