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Renoprotective

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https://www.readbyqxmd.com/read/28820061/renin-angiotensin-system-and-cytokines-in-chronic-kidney-disease-clinical-and-experimental-evidence
#1
Ariadna Andrade Saldanha Silva, Beranardo Bahia Finotti, Amanda Oliveira Lauar, Thiago Ruiz Rodrigues Prestes, Ana Cristina Simões E Silva
Chronic kidney disease (CKD) has become a major public health problem in Brazil and worldwide. There are many causes of CKD, being the congenital anomalies of the kidney and urinary tract and the glomerular diseases very common in pediatric patients, while diabetic nephropathy, CKD due to chronic arterial hypertension and glomerular diseases are predominant in adult patients. Many endogenous mediators have been related to the pathophysiology of CKD, being relevant the effects of the renin-angiotensin system (RAS) and the immune-inflammatory mediators including cytokines...
August 18, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28814987/green-tea-polyphenols-ameliorate-the-early-renal-damage-induced-by-a-high-fat-diet-via-ketogenesis-sirt3-pathway
#2
Weijie Yi, Xiao Xie, Miying Du, Yongjun Bu, Nannan Wu, Hui Yang, Chong Tian, Fangyi Xu, Siyun Xiang, Piwei Zhang, Zhuo Chen, Xuezhi Zuo, Chenjiang Ying
SCOPE: Several reports in the literature have suggested the renoprotective effects of ketone bodies and green tea polyphenols (GTPs). Our previous study found that GTP consumption could elevate the renal expression of the ketogenic rate-limiting enzyme, which was decreased by a high-fat diet (HFD) in rats. Here, we investigated whether ketogenesis can mediate renoprotection by GTPs against an HFD. METHODS AND RESULTS: Wistar rats were fed a standard or HFD with or without GTPs for 18 weeks...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28811292/dapagliflozin-slows-the-progression-of-the-renal-and-liver-fibrosis-associated-with-type-2-diabetes
#3
Li Tang, Yuanyuan Wu, Mi Tian, C David Sjostrom, Ulrika Johansson, Xiao-Rong Peng, David M Smith, Yufeng Huang
Sodium-glucose cotransporter 2 (SGLT2) inhibitors are a new class of antidiabetic oral agents indicating promising effects on cardiovascular and renal end points. However, the renoprotective effects of SGLT2 inhibitors are not fully understood. Also, metabolic effects of SGLT2 inhibition on other organ systems such as effects on hepatic steatosis are not fully understood. This study sought to address these questions by treating 18week-old uninephrectomized db/db mice with a selective SGLT2 inhibitor dapagliflozin...
August 15, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28810600/ethanol-extract-of-gardenia-fruit-alleviates-renal-interstitial-fibrosis-induced-by-unilateral-ureteral-obstruction-in-rats
#4
Xiaobo Li, Min Ma, Xianggui Zhang, Liang Deng, Yarong Wang, Zhuang Bian, Shining Cai, Bangya Peng, Jiangquan Yang, Yang Chen
Gardenia fruit has been used in traditional Chinese medicine for thousands of years. A previous study by the present authors indicated that the ethanol extract of gardenia fruits (EEG) primarily contains eight constituents. In the present study, the potential effects of EEG on unilateral ureteral obstruction (UUO)-induced renal interstitial fibrosis were observed in rats. A total of 30 rats were randomly divided into three groups (n=10 each): Sham group, UUO group, and EEG group, which were administered with EEG (200 mg/kg/day) or the same volume of distilled water as a vehicle...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28805977/prevention-against-renal-damage-in-rats-with-subtotal-nephrectomy-by-sacubitril-valsartan-lcz696-a-dual-acting-angiotensin-receptor-neprilysin-inhibitor
#5
Kentaro Ushijima, Hitoshi Ando, Yusuke Arakawa, Kenichi Aizawa, Chisato Suzuki, Ken Shimada, Shu-Ichi Tsuruoka, Akio Fujimura
Although patients with chronic kidney disease (CKD) are at increased risk for end-stage renal disease and cardiovascular events, adequate drug therapies for preventing the deterioration of these conditions are still not established. This study was undertaken to evaluate a preventive effect of an angiotensin receptor-neprilysin inhibitor sacubitril/valsartan (LCZ696), which is converted to sacubitril and valsartan in the body, against the progression of renal disease in rats with subtotal nephrectomy, an animal model of human CKD...
August 2017: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/28801620/a-novel-aldosterone-antagonist-limits-renal-injury-in-5-6-nephrectomy
#6
Clarice K Fujihara, M C Kowala, M D Breyer, Claudia R Sena, Mariliza V Rodrigues, Simone C A Arias, Camilla Fanelli, Denise M Malheiros, P K Jadhav, Chahrzad Montrose-Rafizadeh, Jose E Krieger, Roberto Zatz
Aldosterone antagonists slow the progression of chronic kidney disease (CKD), but their use is limited by hyperkalemia, especially when associated with RAS inhibitors. We examined the renoprotective effects of Ly, a novel non-steroidal mineralocorticoid receptor (MR) blocker, through two experimental protocols: In Protocol 1, male Munich-Wistar rats underwent 5/6 renal ablation (Nx), being divided into: Nx+V, receiving vehicle, Nx+Eple, given eplerenone, 150 mg/kg/day, and Nx+Ly, given Ly, 20 mg/kg/day...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28801314/macrophage-migration-inhibitory-factor-limits-renal-inflammation-and-fibrosis-by-counteracting-tubular-cell-cycle-arrest
#7
Sonja Djudjaj, Ina V Martin, Eva M Buhl, Nina J Nothofer, Lin Leng, Marta Piecychna, Jürgen Floege, Jürgen Bernhagen, Richard Bucala, Peter Boor
Renal fibrosis is a common underlying process of progressive kidney diseases. We investigated the role of macrophage migration inhibitory factor (MIF), a pleiotropic proinflammatory cytokine, in this process. In mice subjected to unilateral ureteral obstruction, genetic deletion or pharmacologic inhibition of MIF aggravated fibrosis and inflammation, whereas treatment with recombinant MIF was beneficial, even in established fibrosis. In two other models of progressive kidney disease, global Mif deletion or MIF inhibition also worsened fibrosis and inflammation and associated with worse kidney function...
August 11, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28798802/prescribed-renoprotective-chinese-herbal-medicines-were-associated-with-a-lower-risk-of-all-cause-and-disease-specific-mortality-among-patients-with-chronic-kidney-disease-a-population-based-follow-up-study-in-taiwan
#8
Chuan-Fa Hsieh, Huan-Cheng Chang, Song-Lih Huang, Chien-Lung Chen, Wei-Ta Chen, Chen-Chang Yang
Chinese herbal medicines (CHMs) containing aristolochic acid (AA) are associated with chronic kidney disease (CKD), but some prescribed CHMs have been shown to possess renoprotective effects. We conducted a nationwide retrospective cohort study to delineate the role of prescribed CHMs on the CKD progression. Renoprotective CHM (RPCHM) was defined if a CHM contained dong chong xia cao (Cordyceps sinensis (Berk.) Sacc.), da huang (Rheum palmatum L), huang qi (Astragalus membranaceus), dan shen (Salvia miltiorrhiza Bge...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28797008/resveratrol-attenuates-adriamycin-induced-focal-segmental-glomerulosclerosis-through-c3ar-c5ar-sphingosine-kinase-1-pathway
#9
Guoyong Liu, Qiang Wang, Yan Shi, Xiaofei Peng, Hong Liu, Youming Peng, Liyu He
BACKGROUND/AIM: Focal segmental glomerulosclerosis (FSGS) typically presents with nephrotic range proteinuria, which could eventually develop into end-stage renal disease. Resveratrol (RSV) is a natural polyphenol compound, which has been reported to suppress inflammatory response and renal interstitial fibrosis. This study is aimed at evaluating the renoprotective effect of RSV treatment on adriamycin-induced FSGS. METHODS: In Balb/c mice, adriamycin nephropathy was induced by adriamycin (10 mg/kg body weight, diluted in normal saline) via a tail vein on day 0...
August 11, 2017: Pharmacology
https://www.readbyqxmd.com/read/28796030/the-renoprotective-effects-of-simvastatin-and-atorvastatin-in-patients-with-acute-coronary-syndrome-undergoing-percutaneous-coronary-intervention-an-observational-study
#10
Huan Ma, Yong Liu, Haixia Xie, Guolin Zhang, Huimin Zhan, Zhi Liu, Ping Wang, Qingshan Geng, Lan Guo
Some statins, such as atorvastatin, have proven renoprotective effects. The comparative renoprotective potential of simvastatin is less clear. This study aimed to compare the renoprotective effects of simvastatin with atorvastatin in patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI). This observational study examined the medical records of 271 patients who were treated at the Guangdong Cardiovascular Institute from April 2004 to February 2008. Patients had received either 40 mg simvastatin (n = 128) or 20 mg atorvastatin (n = 143), daily, for a period of at least 6 months following PCI...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28792670/comments-on-the-review-biomarkers-in-acute-kidney-injury-pathophysiological-basis-and-clinical-performance-acta-physiol-2017-219-556-574-an-update-on-kidney-localization-of-igfbp7-and-timp2
#11
David R Emlet, Xiaoyan Wen, John A Kellum
In March of 2017, Acta Physiologica published a special series on renoprotection, and one of the publications in that series was a review entitled "Biomarkers in acute kidney injury - pathophysiological basis and clinical performance". This review described very well the current understanding of the pathophysiology, cellular localization, and clinical performance of the most important currently proposed biomarkers of AKI, to include insulin-like growth factor binding protein 7 (IGFBP7) and tissue inhibitor of metalloproteinases 2 (TIMP2)...
August 9, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28791309/research-progress-on-mechanism-of-podocyte-depletion-in-diabetic-nephropathy
#12
REVIEW
Haoran Dai, Qingquan Liu, Baoli Liu
Diabetic nephropathy (DN) together with glomerular hyperfiltration has been implicated in the development of diabetic microangiopathy in the initial stage of diabetic diseases. Increased amounts of urinary protein in DN may be associated with functional and morphological alterations of podocyte, mainly including podocyte hypertrophy, epithelial-mesenchymal transdifferentiation (EMT), podocyte detachment, and podocyte apoptosis. Accumulating studies have revealed that disruption in multiple renal signaling pathways had been critical in the progression of these pathological damages, such as adenosine monophosphate-activated kinase signaling pathways (AMPK), wnt/β-catenin signaling pathways, endoplasmic reticulum stress-related signaling pathways, mammalian target of rapamycin (mTOR)/autophagy pathway, and Rho GTPases...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28774949/renoprotective-effect-of-topiroxostat-via-antioxidant-activity-in-puromycin-aminonucleoside-nephrosis-rats
#13
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/28761658/anagliptin-ameliorates-albuminuria-and-urinary-liver-type-fatty-acid-binding-protein-excretion-in-patients-with-type-2-diabetes-with-nephropathy-in-a-glucose-lowering-independent-manner
#14
Munehiro Kitada, Shin-Ichi Tsuda, Kazunori Konishi, Ai Takeda-Watanabe, Mizue Fujii, Keizo Kanasaki, Makoto Nishizawa, Atsushi Nakagawa, Daisuke Koya
OBJECTIVE: The objective of this study is to elucidate the effect of anagliptin on glucose/lipid metabolism and renoprotection in patients with type 2 diabetic nephropathy. METHODS: Twenty-five patients with type 2 diabetic nephropathy received anagliptin 200 mg/day for 24 weeks, and 20 patients who were switched to anagliptin from other dipeptidyl peptidase-4 (DPP-4) inhibitors were analyzed regarding primary and secondary endpoints. The primary endpoint was change in hemoglobin A1c (HbA1c) during treatment with anagliptin...
2017: BMJ Open Diabetes Research & Care
https://www.readbyqxmd.com/read/28759758/kiwi-fruit-actinidia-deliciosa-ameliorates-gentamicin-induced-nephrotoxicity-in-albino-mice-via-the-activation-of-nrf2-and-the-inhibition-of-nf-%C3%AE%C2%BAb-kiwi-gentamicin-induced-nephrotoxicity
#15
Yomna I Mahmoud
Gentamicin is a potent aminoglycoside antibiotic, but the risk of nephrotoxicity limits its prolonged use. The toxicity of gentamicin is believed to result from oxidative stress, a condition that could be counteracted by dietary antioxidants. This study determines the possible renoprotective effects of kiwifruit against the pathophysiological and ultrastructural alterations induced by gentamicin. Mice were intraperitoneally injected with gentamicin (100mg/kg body weight) for eight consecutive days, and kiwi juice was administered for 8days, either concomitant to or after gentamicin injection...
July 28, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28759637/pituitary-adenylate-cyclase-activating-polypeptide-pacap-in-zebrafish-models-of-nephrotic-syndrome
#16
Benedicte Eneman, Mohamed A Elmonem, Lambertus P van den Heuvel, Laleh Khodaparast, Ladan Khodaparast, Chris van Geet, Kathleen Freson, Elena Levtchenko
Pituitary adenylate cyclase-activating polypeptide (PACAP) is an inhibitor of megakaryopoiesis and platelet function. Recently, PACAP deficiency was observed in children with nephrotic syndrome (NS), associated with increased platelet count and aggregability and increased risk of thrombosis. To further study PACAP deficiency in NS, we used transgenic Tg(cd41:EGFP) zebrafish with GFP-labeled thrombocytes. We generated two models for congenital NS, a morpholino injected model targeting nphs1 (nephrin), which is mutated in the Finnish-type congenital NS...
2017: PloS One
https://www.readbyqxmd.com/read/28758593/physical-exercise-and-ace2-angiotensin-1-7-mas-receptor-axis-of-the-renin-angiotensin-system
#17
Albená Nunes-Silva, Guilherme Carvalho Rocha, Daniel Massote Magalhaes, Lucas Neves Vaz, Marcelo Henrique Salviano Faria, Ana Cristina Simões E Silva
Many physiological responses of the Renin Angiotensin System (RAS) are associated with two opposite pathways: (1) a classical one formed by angiotensin-converting enzyme (ACE), Angiotensin II (Ang II) and Angiotensin type 1 (AT1) receptor, which is associated to vasoconstriction, cell proliferation, organ hypertrophy, sodium retention and aldosterone release and (2) a counter-regulatory or vasodilator pathway comprising angiotensin-converting enzyme 2 (ACE2), Angiotensin-(1-7) [Ang-(1-7)] and Mas receptor, which is involved in vasodilation, anti-proliferation, anti-hypertrophy, cardioprotective and renoprotective actions...
July 28, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28752287/effects-of-topiroxostat-in-hyperuricemic-patients-with-chronic-kidney-disease
#18
Taro Horino, Yutaka Hatakeyama, Osamu Ichii, Tatsuki Matsumoto, Yoshiko Shimamura, Kosuke Inoue, Yoshio Terada, Yoshiyasu Okuhara
BACKGROUND: Hyperuricemia is associated with chronic kidney disease (CKD). Although topiroxostat, a novel, non-purine, selective xanthine oxidase inhibitor, has a strong effect against hyperuricemia, limited data are available on its renoprotective effect against CKD. METHODS: This study was conducted between October 2014 and May 2016. Thirty patients (20 male, 10 female) were administered 40 mg/day of topiroxostat twice daily. All patients were followed for a year...
July 27, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28750927/fibroblast-growth-factor-1-ameliorates-diabetic-nephropathy-by-an-anti-inflammatory-mechanism
#19
Guang Liang, Lintao Song, Zilu Chen, Yuanyuan Qian, Junjun Xie, Longwei Zhao, Qian Lin, Guanghui Zhu, Yi Tan, Xiaokun Li, Moosa Mohammadi, Zhifeng Huang
Inflammation plays a central role in the etiology of diabetic nephropathy, a global health issue. We observed a significant reduction in the renal expression of fibroblast growth factor 1, a known mitogen and insulin sensitizer, in patients with diabetic nephropathy and in mouse models implying that fibroblast growth factor 1 possesses beneficial anti-inflammatory and renoprotective activities in vivo. To test this possibility, we investigated the effects of chronic i.p. administration of fibroblast growth factor 1 into both the streptozotocin-induced type 1 diabetes and db/db type 2 diabetes models...
July 24, 2017: Kidney International
https://www.readbyqxmd.com/read/28750561/renoprotective-mechanisms-of-astragaloside-iv-in-cisplatin-induced-acute-kidney-injury
#20
Wei Yan, Yao Xu, Yanhong Yuan, Lei Tian, Qin Wang, Yuanyuan Xie, Xinghua Shao, Ming Zhang, Zhaohui Ni, Shan Mou
Nephrotoxicity remains a serious adverse effect of cisplatin chemotherapy, limiting its clinical usage. Numerous studies show that oxidative stress and inflammation are closely associated with cisplatin-induced renal damage. Astragaloside IV (AS-IV) has been found to possess antioxidant and anti-inflammation functions. Therefore, we investigated the potential curative effects of AS-IV against cisplatin-induced renal injury and the possible cellular mechanism for activity, both in vitro and in vivo. We found that pretreatment of HK-2 cells with AS-IV could mitigate cisplatin-induced cell damage caused by oxygen free radicals and the inflammatory response, as evidenced by reduced formation of reactive oxygen species (ROS) and inflammatory cytokines...
July 28, 2017: Free Radical Research
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