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Kidney oxidative stress

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https://www.readbyqxmd.com/read/28538015/the-kallikrein-kinin-system-in-diabetic-kidney-disease
#1
Wenjuan Liu, Robert C Stanton, Zhaoyun Zhang
PURPOSE OF REVIEW: Diabetic kidney disease (DKD) is one of the most common complications in diabetes mellitus and accounts for a large proportion of clinical nephrology practice. Studies have shown that the kallikrein-kinin system (KKS) may be involved in several pathogenic mechanisms that contribute to DKD, including oxidative stress, inflammatory cytokines, and profibrotic autacoids. This review focuses on recent research advance on the potential role of the KKS in the development of DKD and its clinical relevance...
May 19, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28537880/biological-effects-and-epidemiological-consequences-of-arsenic-exposure-and-reagents-that-can-ameliorate-arsenic-damage-in-vivo
#2
REVIEW
Chinthalapally V Rao, Sanya Pal, Altaf Mohammed, Mudassir Farooqui, Mark P Doescher, Adam S Asch, Hiroshi Y Yamada
Through contaminated diet, water, and other forms of environmental exposure, arsenic affects human health. There are many U.S. and worldwide "hot spots" where the arsenic level in public water exceeds the maximum exposure limit. The biological effects of chronic arsenic exposure include generation of reactive oxygen species (ROS), leading to oxidative stress and DNA damage, epigenetic DNA modification, induction of genomic instability, and inflammation and immunomodulation, all of which can initiate carcinogenesis...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28535124/serum-creatinine-and-cystatin-c-provide-conflicting-evidence-of-acute-kidney-injury-following-acute-ingestion-of-potassium-permanganate-and-oxalic-acid
#3
Thilini Madushanka Wijerathna, Indika Bandara Gawarammana, Dhammika Menike Dissanayaka, Chathura Palanagasinghe, Fathima Shihana, Gihani Dassanayaka, Seyed Shahmy, Zoltan Huba Endre, Fahim Mohamed, Nicholas Alan Buckley
AIM: Acute kidney injury (AKI) is common following deliberate self-poisoning with a combination washing powder containing oxalic acid (H2C2O4) and potassium permanganate (KMnO4). Early and rapid increases in serum creatinine (sCr) follow severe poisoning. We investigated the relationship of these increases with direct nephrotoxicity in an ongoing multicenter prospective cohort study in Sri Lanka exploring AKI following poisoning. METHODS: Multiple measures of change in kidney function were evaluated in 48 consenting patients who had serial sCr and serum cystatin C (sCysC) data available...
May 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28533525/cellular-responses-to-t-2-toxin-and-or-deoxynivalenol-that-induce-cartilage-damage-are-not-specific-to-chondrocytes
#4
Yang Lei, Zhao Guanghui, Wang Xi, Wang Yingting, Lin Xialu, Yu Fangfang, Mary B Goldring, Guo Xiong, Mikko J Lammi
The relationship between T-2 toxin and deoxynivalenol (DON) and the risk of Kashin-Beck disease is still controversial since it is poorly known about their selectivity in cartilage damage. We aimed to compare the cytotoxicity of T-2 toxin and DON on cell lines representative of cell types encountered in vivo, including human chondrocytes (C28/I2), human hepatic epithelial cells (L-02) and human tubular epithelial cells (HK-2). In addition, we determined the distribution of T-2 toxin and DON in Sprague-Dawley (SD) rats after a single dose exposure...
May 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28533146/bioactive-lipids-derived-from-arachidonic-acid-metabolism-in-different-types-of-renal-replacement-therapy
#5
Joanna Stępniewska, Barbara Dołęgowska, Kamila Puchałowicz, Edyta Gołembiewska, Kazimierz Ciechanowski
INTRODUCTION: Metabolism and plasma concentration of lipids and lipid-derived compounds play an important role in kidney physiology and pathological processes. The component of membrane phospholipids - arachidonic acid (AA) and its active derivatives - eicosanoids are involved in the development of hypertension, diabetes, inflammation and may contribute to progression of chronic kidney disease (CKD). The purpose of the study was to determine, whether the type of renal replacement therapy has an effect on eicosanoids metabolism...
May 19, 2017: Chemistry and Physics of Lipids
https://www.readbyqxmd.com/read/28532411/aldehyde-dehydrogenase-2-2-knock-in-mice-show-increased-reactive-oxygen-species-production-in-response-to-cisplatin-treatment
#6
Jeewon Kim, Che-Hong Chen, Jieying Yang, Daria Mochly-Rosen
BACKGROUND: The aldehyde dehydrogenase (ALDH) enzyme family metabolizes and detoxifies both exogenous and endogenous aldehydes. Since chemotherapeutic agents, such as cisplatin, generate cytotoxic aldehydes and oxidative stress, and chemoresistant cancer cells express high levels of ALDH enzymes, we hypothesized that different ALDH expression within cells may show different chemosensitivity. ALDH2 has the lowest Km for acetaldehyde among ALDH isozymes and detoxifies acetaldehydes in addition to other reactive aldehydes, such as 4-hydroxy-nonenal, malondialdehyde and acrolein produced from lipid peroxidation by reactive oxygen species (ROS)...
May 22, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28532211/rotenone-induces-nephrotoxicity-in-rats-oxidative-damage-and-apoptosis
#7
Xiao-Wen Jiang, Lu Qiao, Xin-Xin Feng, Lin Liu, Qing-Wei Wei, Xue-Wei Wang, Wen-Hui Yu
Previous studies have examined rotenone toxicity on the human central nervous system, especially in the pathogenesis of Parkinson's disease, but few have investigated the effects of rotenone on the kidney. Here, rotenone-induced nephrotoxicity was evaluated by determining morphological, biochemical, oxidative stress-related, and apoptotic factor alterations in rat renal tissue. Morphological and biochemical analyses showed that rotenone administration to rats damaged renal tissue. Western blot results revealed that rotenone induced oxidative damage, causing overproduction of glutathione, malonaldehyde, and reactive oxygen species (ROS), and inhibiting superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activity...
May 22, 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28528318/metabolic-profiling-of-goldfish-carassius-auratis-after-long-term-glyphosate-based-herbicide-exposure
#8
Ming-Hui Li, Ling-Yu Ruan, Jin-Wei Zhou, Yong-Hong Fu, Lei Jiang, He Zhao, Jun-Song Wang
Glyphosate is an efficient herbicide widely used worldwide. However, its toxicity to non-targeted organisms has not been fully elucidated. In this study, the toxicity of glyphosate-based herbicide was evaluated on goldfish (Carassius auratus) after long-term exposure. Tissues of brains, kidneys and livers were collected and submitted to NMR-based metabolomics analysis and histopathological inspection. Plasma was collected and the blood biochemical indexes of AST, ALT, BUN, CRE, LDH, SOD, GSH-Px, GR and MDA were measured...
May 13, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28526807/dihydroartemisinin-induces-autophagy-dependent-death-in-human-tongue-squamous-cell-carcinoma-cells-through-dna-double-strand-break-mediated-oxidative-stress
#9
Xinli Shi, Li Wang, Xiaoming Li, Jing Bai, Jianchun Li, Shenghao Li, Zeming Wang, Mingrui Zhou
Dihydroartemisinin is an effective antimalarial agent with multiple biological activities. In the present investigation, we elucidated its therapeutic potential and working mechanism on human tongue squamous cell carcinoma (TSCC). It was demonstrated that dihydroartemisinin could significantly inhibit cell growth in a dose- and time-dependent manner by the Cell Counting Kit-8 and colony formation assay in vitro. Meanwhile, autophagy was promoted in the Cal-27 cells treated by dihydroartemisinin, evidenced by increased LC3B-II level, increased autophagosome formation, and increased Beclin-1 level compared to dihydroartemisinin-untreated cells...
April 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28526263/n-stearoyl-l-tyrosine-inhibits-the-cell-senescence-and-apoptosis-induced-by-h2o2-in-hek293-tau-cells-via-the-cb2-receptor
#10
Yue Hu, Kai-Yi Zhou, Ze-Jian Wang, Yang Lu, Ming Yin
Although considerable energy and money have been spent trying to inhibit Aβ production and its related metabolic enzyme activities, there are still no drug treatments available to cure even slow for Alzheimer's disease. Therefore, tau protein has been focused recently as the new target for the treatment of Alzheimer's disease. The transfected human embryonic kidney 293 (HEK 293) cells with or without Tau 411 plasmid were used to evaluate the effect of tau protein on cell viability. H2O2 was added to simulate microenvironment of oxidative stress (OS) during aging...
May 16, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28525943/effect-of-au-dextran-nps-as-anti-tumor-agent-against-eac-and-solid-tumor-in-mice-by-biochemical-evaluations-and-histopathological-investigations
#11
Dalia Medhat, Jihan Hussein, Mehrez E El-Naggar, Mohamed F Attia, Mona Anwar, Yasmine Abdel Latif, Hoda F Booles, Safaa Morsy, Abdel Razik Farrag, Wagdy K B Khalil, Zakaria El-Khayat
Dextran-capped gold nanoparticles (Au-dextran NPs) were prepared exploiting the natural polysaccharide polymer as both reducing and stabilizing agent in the synthesis process, aiming at studying their antitumor effect on solid carcinoma and EAC-bearing mice. To this end, Au-dextran NPs were designed via simple eco-friendly chemical reaction and they were characterized revealing the monodispersed particles with narrow distributed size of around 49nm with high negative charge. In vivo experiments were performed on mice...
May 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28522341/systemic-and-ocular-fluid-compounds-as-potential-biomarkers-in-age-related-macular-degeneration
#12
REVIEW
Eveline Kersten, Constantin C Paun, Rosa L Schellevis, Carel B Hoyng, Cécile Delcourt, Imre Lengyel, Tunde Peto, Marius Ueffing, Caroline C W Klaver, Sascha Dammeier, Anneke I den Hollander, Eiko K de Jong
Biomarkers can help unravel mechanisms of disease and identify new targets for therapy. They can also be useful in clinical practice for monitoring disease progression, evaluation of treatment efficacy and risk assessment in multifactorial diseases, such as age-related macular degeneration (AMD). AMD is a highly prevalent progressive retinal disorder for which multiple genetic and environmental risk factors have been described, but the exact etiology is not yet fully understood. Many compounds have been evaluated for their association with AMD...
May 15, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28522335/comparative-analysis-of-transcriptomic-responses-to-repeated-dose-exposure-to-2-mcpd-and-3-mcpd-in-rat-kidney-liver-and-testis
#13
Thorsten Buhrke, Katharina Schultrich, Albert Braeuning, Alfonso Lampen
3-Chloro-1,2-propanediol (3-MCPD) and its isomer 2-chloro-1,3-propanediol (2-MCPD) are heat-induced food contaminants present in oil- and fat-containing foodstuff. Kidney and testes are among the main target organs of 3-MCPD. Almost no data on 2-MCPD toxicity are available. Here, transcriptomic responses following repeated-dose exposure of rats to non-toxic doses of 10 mg/kg body weight 2-MCPD or 3-MCPD for 28 days were characterized by microarray analysis of kidney, liver, and testes. 3-MCPD exerted more pronounced effects than 2-MCPD in all organs...
May 15, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28522248/adverse-effects-in-kidney-function-antioxidant-systems-and-histopathology-in-rats-receiving-monosodium-glutamate-diet
#14
María Del Carmen Contini, Ana Fabro, Néstor Millen, Adriana Benmelej, Stella Mahieu
We investigated the effects of adding of monosodium glutamate (MSG) to a standard diet on oxidative stress in kidney, nitric oxide excretion, renal ions handling and blood pressure. We examined the association of these changes with the effects on renal histology. The study was performed on male Wistar rats (5 weeks old) divided into 3 groups: 1) MSG group were fed a diet supplemented with 3g of MSG/kg b.w./day, five days a week, and spontaneous ingestion of a 1% MSG solution during 16 weeks; 2) NaCl group were fed a diet with NaCl (1g/kg b...
May 15, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28521876/renoprotective-effect-of-a-novel-selective-ppar%C3%AE-modulator-k-877-in-db-db-mice-a-role-of-diacylglycerol-protein-kinase-c-nad-p-h-oxidase-pathway
#15
Toshinobu Maki, Yasutaka Maeda, Noriyuki Sonoda, Hiroaki Makimura, Shinichiro Kimura, Sayaka Maeno, Ryoichi Takayanagi, Toyoshi Inoguchi
OBJECTIVE: Several clinical studies have shown the beneficial effects of peroxisome proliferator-activated receptor α (PPARα) agonists on diabetic nephropathy. However, the molecular mechanism is not fully understood. Here we show that K-877, a novel selective PPARα modulator, ameliorates nephropathy in db/db mice via inhibition of renal lipid content and oxidative stress. METHODS AND RESULTS: K-877 (0.5mg/kg/day) was administered to db/db mice for 2 or 12weeks...
June 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28521173/thymoquinone-ameliorates-renal-damage-in-unilateral-ureteral-obstruction-in-rats
#16
Sara Hosseinian, Abolfazl Khajavi Rad, Alireza Ebrahimzadeh Bideskan, Mohammad Soukhtanloo, Hamidreza Sadeghnia, Mohammad Naser Shafei, Fatemeh Motejadded, Reza Mohebbati, Samira Shahraki, Farimah Beheshti
BACKGROUND: It is well established that renin-angiotensin system (RAS) play a central role in pathophysiology of renal damage following unilateral ureteral obstruction (UUO). The present study investigated the effects of thymoquinone and RAS blockade on renal tissue damage and renal expression of angiotensin II after UUO in rats. METHODS: Forty male rats were divided to five groups: Sham-operated group, UUO group and rats with UUO treated with losartan, captopril and thymoquinone...
March 14, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28515179/arginase-2-mediates-renal-ischemia-reperfusion-injury
#17
Wesley M Raup-Konsavage, Ting Gao, Timothy K Cooper, Sidney M Morris, W Brian Reeves, Alaa S Awad
Novel therapeutic interventions for preventing or attenuating kidney injury following ischemia/reperfusion injury (IRI) remain a focus of significant interest. Currently, there are no definitive therapeutic or preventive approaches available for ischemic acute kidney injury (AKI). Our objective is to determine (a) whether renal arginase activity or expression is increased in renal IRI and (b) whether arginase plays a role in development of renal IRI. The impact of arginase activity and expression on renal damage was evaluated in male C57BL/6J (WT) and arginase-2 deficient (Arg2(-/-) ) mice subjected to bilateral renal ischemia for 28min followed by reperfusion for 24h...
May 17, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28515173/heme-oxygenase-1-mitigates-ferroptosis-in-renal-proximal-tubule-cells
#18
Oreoluwa Adedoyin, Ravindra Boddu, Amie M Traylor, Jeremie M Lever, Subhashini Bolisetty, James George, Anupam Agarwal
Ferroptosis is an iron-dependent form of regulated, non-apoptotic cell death, which contributes to damage in models of acute kidney injury (AKI). Heme oxygenase-1 (HO-1) is a cytoprotective enzyme induced in response to cellular stress, and is protective against AKI due to its anti-apoptotic and anti-inflammatory properties. However, the role of HO-1 in regulating ferroptosis is unclear. The purpose of this study was to elucidate the role of HO-1 in regulating ferroptotic cell death in renal proximal tubule cells (PTCs)...
May 17, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28513773/attenuation-of-renal-ischemic-reperfusion-injury-by-salvianolic-acid-b-via-suppressing-oxidative-stress-and-inflammation-through-pi3k-akt-signaling-pathway
#19
Z G Ma, H Q Xia, S L Cui, J Yu
Salvianolic acid B (SAB) is one the major phytocomponents of Radix Salvia miltiorrhiza and exhibit numerous health promoting properties. The objective of the current study was to examine whether SAB exerts a renoprotective effect by attenuating oxidative stress and inflammatory response through activating phosphatidylinositol 3-kinase/serine-threonine kinase B (PI3K/Akt) signaling pathway in a renal ischemic reperfusion rat model. Forty Sprague-Dawley male rats (250-300 g) were obtained and split into four groups with ten rats in each group...
May 15, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28512525/h2s-donor-nahs-changes-the-production-of-endogenous-h2s-and-no-in-d-galactose-induced-accelerated-ageing
#20
Wei Wu, Cui-Lan Hou, Xue-Pan Mu, Chen Sun, Yi-Chun Zhu, Ming-Jie Wang, Qian-Zhou Lv
Aims. The study was designed to explore whether hydrogen sulphide (H2S) and nitric oxide (NO) generation changed in D-galactose- (D-gal-) induced ageing, the possible effects of exogenous H2S supplementation, and related mechanisms. Results. In D-gal-induced senescent mice, both H2S and NO levels in the heart, liver, and kidney tissues were decreased significantly. A similar trend was observed in D-gal-challenged human umbilical vein endothelial cells (HUVECs). Sustained H2S donor (NaHS) treatment for 2 months elevated H2S and NO levels in these mice, and during this period, the D-gal-induced senescent phenotype was reversed...
2017: Oxidative Medicine and Cellular Longevity
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