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Renoprotection

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https://www.readbyqxmd.com/read/28090235/a-possible-mechanism-for-renoprotective-effect-of-sodium-glucose-cotransporter-2-inhibitor-elevation-of-erythropoietin-production
#1
Hidekatsu Yanai, Hisayuki Katsuyayama
No abstract text is available yet for this article.
February 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28087385/berberine-exerts-renoprotective-effects-by-regulating-the-ages-rage-signaling-pathway-in-mesangial-cells-during-diabetic-nephropathy
#2
Yuan-Ye Qiu, Li-Qin Tang, Wei Wei
In this study, we explored the effect of berberine treatment on the AGEs-RAGE pathway in a rat model of diabetic nephropathy, and we investigated the mechanism by which key factors caused kidney injury and the effects of berberine. In vivo, berberine improved fasting blood glucose, body weight, the majority of biochemical and renal function parameters and histopathological changes in the diabetic kidney. Western blotting and immunohistochemistry revealed significant increases in the levels of AGEs, RAGE, P-PKC-β and TGF-β1 in injured kidneys, and these levels were markedly decreased by treatment with berberine...
January 10, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28079534/practical-efficacy-of-olmesartan-versus-azilsartan-in-patients-with-hypertension-a-multicenter-randomized-controlled-trial-muscat-4-study
#3
Yuki Kakio, Haruhito A Uchida, Ryoko Umebayashi, Hidemi Takeuchi, Yuka Okuyama, Yoshihisa Hanayama, Jun Wada
BACKGROUND: Olmesartan and azilsartan, angiotensin II receptor blockers (ARBs), are expected to decrease blood pressure more than the other ARBs. We conducted randomized-controlled trials to compare the practical efficacy of olmesartan with azilsartan. METHODS: Eighty-four patients treated with the conventional ARBs for more than 3 months were assigned randomly to receive either 20 mg of olmesartan (olmesartan medoxomil, OL group) or 20 mg of azilsartan (azilsartan, not azilsartan medoxomil, AZ group) once daily for 16 weeks...
January 10, 2017: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/28079268/renoprotective-effect-of-hypericum-perforatum-against-diabetic-nephropathy-in-rats-insights-in-the-underlying-mechanisms
#4
Dalia M Abd El Motteleb, Dalia I Abd El Aleem
Oxidative stress and inflammation play a key role in the initiation and progression of diabetic nephropathy (DN). The present study aimed to investigate the possible protective effect of hypericum perforatum (HP) against DN. Rats were allocated into six groups; control: received normal saline, diabetic untreated (DM): received single dose of streptozotocin (STZ) after injection of nicotinamide (NA), gliclazide: received STZ,NA+ gliclazide (10mg/kg), DM+HP50, DM+HP100, DM+HP200:received STZ,NA and HP 50, 100, 200 mg/kg respectively...
January 12, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28076452/angiotensin-1-7-relieved-renal-injury-induced-by-chronic-intermittent-hypoxia-in-rats-by-reducing-inflammation-oxidative-stress-and-fibrosis
#5
W Lu, J Kang, K Hu, S Tang, X Zhou, S Yu, L Xu
We aimed to study the renal injury and hypertension induced by chronic intermittent hypoxia (CIH) and the protective effects mediated by angiotensin 1-7 [Ang(1-7)]. We randomly assigned 32 male Sprague-Dawley rats (body weight 180-200 g) to normoxia control, CIH, Ang(1-7)-treated normoxia, and Ang(1-7)-treated CIH groups. Systolic blood pressure (SBP) was monitored at the start and end of each week. Renal sympathetic nerve activity (RSNA) was recorded. CTGF and TGF-β were detected by immunohistochemistry and western blotting...
January 9, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28075040/n-acetyl-seryl-aspartyl-lysyl-proline-mediates-the-anti-fibrotic-properties-of-captopril-in-unilateral-ureteric-obstructed-balb-c-mice
#6
Gary Cw Chan, Hao Jia Wu, Kam Wa Chan, Stella Yiu, Ailis Zou, Xiao Ru Huang, Hui Yao Lan, Kar Neng Lai, Sydney Cw Tang
BACKGROUND: Angiotensin-converting enzyme inhibitors (ACEi) are widely employed to deter the progression of chronic kidney disease (CKD). Besides controlling hypertension and reduction of intra-glomerular pressure, ACEi appear to have anti-fibrotic effects in the renal cortex. N-acetyl-seryl-aspartyl-lysyl-proline (Ac-SDKP), an endogenous tetrapeptide that is degraded by ACE, has also been shown to ameliorate the pro-fibrotic phenotype displayed in CKD in our recent study. Whether the anti-fibrotic properties of ACEi are mediated by Ac-SDKP has not been fully investigated...
January 11, 2017: Nephrology
https://www.readbyqxmd.com/read/28069557/h2s-as-a-possible-therapeutic-alternative-for-the-treatment-of-hypertensive-kidney-injury
#7
REVIEW
George J Dugbartey
Hypertension is the most common cause of cardiovascular morbidities and mortalities, and a major risk factor for renal dysfunction. It is considered one of the causes of chronic kidney disease, which progresses into end-stage renal disease and eventually loss of renal function. Yet, the mechanism underlying the pathogenesis of hypertension and its associated kidney injury is still poorly understood. Moreover, despite existing antihypertensive therapies, achievement of blood pressure control and preservation of renal function still remain a worldwide public health challenge in a subset of hypertensive patients...
January 6, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28053613/diallyl-disulfide-attenuates-acetaminophen-induced-renal-injury-in-rats
#8
Jin-Young Shin, Ji-Hee Han, Je-Won Ko, Sung-Hyeuk Park, Na-Rae Shin, Tae-Yang Jung, Hyun-A Kim, Sung-Hwan Kim, In-Sik Shin, Jong-Choon Kim
This study investigated the protective effects of diallyl disulfide (DADS) against acetaminophen (AAP)-induced acute renal injury in male rats. We also investigated the effects of DADS on kidney injury molecule-1 (KIM-1) and neutrophil gelatinase-associated lipocalin (NGAL), which are novel biomarkers of nephrotoxicity in renal tissues, in response to AAP treatment. The following four experimental groups were evaluated: (1) vehicle control, (2) AAP (1,000 mg/kg), (3) AAP&DADS, and (4) DADS (50 mg/kg/day). AAP treatment caused acute kidney injury evidenced by increased serum blood urea nitrogen (BUN) levels and histopathological alterations...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28052874/inhibition-of-hdac6-protects-against-rhabdomyolysis-induced-acute-kidney-injury
#9
Shi Yingfeng, Xu Liuqing, Tang Jinhua, Fang Lu, Ma Shuchen, Ma Xiaoyan, Nie Jing, Pi Xiaoling, Qiu Andong, Zhuang Shougang, Liu Na
Histone deacetylase 6 (HDAC6) inhibition has been reported to protect against ischemic stroke and prolong survival after sepsis in animal models. However, it remains unknown whether HDAC6 inhibition offers a renoprotective effect after acute kidney injury (AKI). In this study, we examined the therapeutic effect of tubastatin A (TA), a highly selective inhibitor of HDAC6, on AKI in a murine model of glycerol (GL) injection-induced rhabdomyolysis. Following GL injection, the mice developed severe acute tubular injury as indicated by renal dysfunction, expression of neutrophil gelatinase-associated lipocalin (NGAL), an injury marker of renal tubules and increase of TUNEL positive tubular cells...
January 4, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28028935/renoprotection-focus-on-trpv1-trpv4-trpc6-and-trpm2
#10
REVIEW
L Markó, M Mannaa, T N Haschler, S Krämer, M Gollasch
Members of the transient receptor potential (TRP) cation channel receptor family have unique sites of regulatory function in the kidney which enables them to promote regional vasodilatation and controlled Ca(2+) influx into podocytes and tubular cells. Activated TRP vanilloid 1 receptor channels (TRPV1) have been found to elicit renoprotection in rodent models of acute kidney injury following ischaemia/reperfusion. Transient receptor potential cation channel, subfamily C, member 6 (TRPC6) in podocytes is involved in chronic proteinuric kidney disease, particularly in focal segmental glomerulosclerosis (FSGS)...
November 7, 2016: Acta Physiologica
https://www.readbyqxmd.com/read/28025459/tgp-attenuates-endoplasmic-reticulum-stress-and-regulates-the-expression-of-thioredoxin-interacting-protein-in-the-kidneys-of-diabetic-rats
#11
Yunxia Shao, Xiangming Qi, Xinxing Xu, Kun Wang, Yonggui Wu, Lingling Xia
Recent evidence suggests that the endoplasmic reticulum stress (ERS)-thioredoxin-interacting protein (TXNIP)-inflammation chain contributes to diabetic renal injury. The aim of the current study was to investigate whether total glucosides of peony (TGP) could inhibit ERS and attenuate up-regulation of TXNIP in the kidneys of rats with streptozotocin-induced diabetes. TGP was orally administered daily at a dose of 50, 100, or 200 mg/kg for 8 weeks. The expression of glucose-regulated protein 78 (GRP78), phospho-protein kinase RNA-like ER kinase (p-PERK), phosphor- eukaryotic translation initiation factor 2α (p-eIF2α), C/EBP-homologous protein (CHOP), and TXNIP was assessed...
December 24, 2016: Bioscience Trends
https://www.readbyqxmd.com/read/28017896/augmented-o-glcnac-signaling-via-glucosamine-attenuates-oxidative-stress-and-apoptosis-following-contrast-induced-acute-kidney-injury-in-rats
#12
Jiachang Hu, Rongyi Chen, Ping Jia, Yi Fang, Tongqiang Liu, Nana Song, Xialian Xu, Jun Ji, Xiaoqiang Ding
Contrast-induced acute kidney injury (CI-AKI) is an iatrogenic renal injury and associated with substantial morbidity and mortality in susceptible individuals. Despite extensive study of a variety of agents for renal protection, limited strategies have been shown to be effective in the reduction of CI-AKI. O-linked β-N-acetylglucosamine (O-GlcNAc) is a post-translational regulatory modification of intracellular proteins and governs the function of numerous proteins, both cytosolic and nuclear. Increasing evidence suggests that O-GlcNAc levels are increased in response to stress and that acute augmentation of this reaction is cytoprotective...
December 23, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28008953/glycosuria-and-renal-outcomes-in-patients-with-nondiabetic-advanced-chronic-kidney-disease
#13
Chi-Chih Hung, Hugo You-Hsien Lin, Jia-Jung Lee, Lee Moay Lim, Yi-Wen Chiu, Heng-Pin Chiang, Shang-Jyh Hwang, Hung-Chun Chen
Sodium glucose cotransporter 2 inhibitors have shown a potential for renoprotection beyond blood glucose lowering. Glycosuria in nondiabetic patients with chronic kidney disease (CKD) is sometimes noted. Whether glycosuria in CKD implies a channelopathy or proximal tubulopathy is not known. The consequence of glycosuria in CKD is also not studied. We performed a cross-sectional study for the association between glycosuria and urine electrolyte excretion in 208 nondiabetic patients. Fractional excretion (FE) of glucose >4% was 3...
December 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28005239/combination-of-cilostazol-and-probucol-protected-podocytes-from-lipopolysaccharide-induced-injury-by-both-anti-inflammatory-and-anti-oxidative-mechanisms
#14
Peng He, Harukiyo Kawamura, Minoru Takemoto, Yoshiro Maezawa, Takahiro Ishikawa, Ryoichi Ishibashi, Kenichi Sakamoto, Mayumi Shoji, Akiko Hattori, Masaya Yamaga, Shintaro Ide, Kana Ide, Aiko Hayashi, Hirotake Tokuyama, Kazuki Kobayashi, Koutaro Yokote
Podocytes are essential for maintaining kidney glomerular functions. Injuries to podocyte are closely related to the pathological process of proteinuria. However, a treatment for podocyte injury has still not been established. Cilostazol (CSZ) and probucol (PBC) have been shown to possess renoprotective effects. Therefore, we evaluated these drugs in a lipopolysaccharide (LPS)-induced podocyte injury model. 7-week-old female C57BL/6J mice were fed a normal diet or a diet containing 0.3% CSZ, 0.5% PBC, or both for 10 days...
December 22, 2016: Journal of Nephrology
https://www.readbyqxmd.com/read/28004272/rice-bran-protein-hydrolysates-attenuate-diabetic-nephropathy-in-diabetic-animal-model
#15
Kampeebhorn Boonloh, Eun Soo Lee, Hong Min Kim, Mi Hye Kwon, You Mi Kim, Patchareewan Pannangpetch, Bunkerd Kongyingyoes, Upa Kukongviriyapan, Supawan Thawornchinsombut, Eun Young Lee, Veerapol Kukongviriyapan, Choon Hee Chung
INTRODUCTION: Diabetic nephropathy (DN) is an important microvascular complication of uncontrolled diabetes. The features of DN include albuminuria, extracellular matrix alterations, and progressive renal insufficiency. Rice bran protein hydrolysates (RBPs) have been reported to have antihyperglycemic, lipid-lowering, and anti-inflammatory effects in diabetic rats. Our study was to investigate the renoprotective effects of RBP in diabetic animals and mesangial cultured cells. METHODS: Eight-week-old male db/m and db/db mice were orally treated with tap water or RBP (100 or 500 mg/kg/day) for 8 weeks...
December 21, 2016: European Journal of Nutrition
https://www.readbyqxmd.com/read/28002889/variability-in-response-to-albuminuria-lowering-drugs-true-or-random
#16
S I Petrykiv, D de Zeeuw, F Persson, P Rossing, R T Gansevoort, G D Laverman, H J L Heerspink
AIMS: Albuminuria lowering drugs have shown different effect size in different individuals. Since urine albumin levels are known to vary considerably from day-to-day, we questioned whether the between-individual variability in albuminuria response after therapy initiation reflects a random variability or a true response variation to treatment. In addition, we questioned whether the response variability is drug dependent. METHODS: To determine whether the response to treatment is random or a true drug response, we correlated in six clinical trials the change in albuminuria during placebo or active treatment (on-treatment) with the change in albuminuria during wash-out (off-treatment)...
December 21, 2016: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27998979/alpha-actinin-4-actn4-regulates-glucocorticoid-receptor-mediated-transactivation-and-transrepression-in-podocytes
#17
Xuan Zhao, Simran Khurana, Sharmistha Charkraborty, Yuqian Tian, John R Sedor, Leslie A Bruggeman, Hung-Ying Kao
Glucocorticoids (GCs) are a general class of steroids that possess renoprotective activity in glomeruli through their interaction with the glucocorticoid receptor. However, the mechanisms by which the GCs ameliorate proteinuria and glomerular disease are not well understood. In this study, we demonstrated that alpha actinin 4 (ACTN4), an actin-crosslinking protein known to coordinate cytoskeletal organization, interacts with the glucocorticoid receptor (GR) in the nucleus of human podocytes (HPCs), a key cell type in the glomerulus critical for kidney filtration function...
December 20, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27997907/improvement-of-huangqi-decoction-on-endothelial-dysfunction-in-5-6-nephrectomized-rats
#18
Shuang Chu, Li Wang, Xiao-Dong Mao, Wen Peng
BACKGROUND/AIMS: Endothelial dysfunction is a major factor in the progression of chronic kidney disease, which correlates with oxidative stress and NO deficiency. Huangqi decoction (HQD) is a potential anti-oxidant ingredient in renoprotection. However, the underlying mechanisms remained identified. Therefore, we investigated whether HQD exhibit improvement in endothelial dysfunction in the 5/6 nephrectomy (Nx) rat model. METHODS: Male Wistar rats (180 - 250 g) were divided into sham, Nx and Nx + HQD (0...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27997877/effects-of-low-dose-atrial-natriuretic-peptide-infusion-on-cardiac-surgery-associated-acute-kidney-injury-a-multicenter-randomized-controlled-trial
#19
Chieko Mitaka, Tetsu Ohnuma, Takanori Murayama, Fumio Kunimoto, Michio Nagashima, Tetsuhiro Takei, Naoya Iguchi, Makoto Tomita
PURPOSE: To evaluate the effects of atrial natriuretic peptide (ANP) on renal function and medical costs in patients with acute kidney injury (AKI) associated with cardiac surgery. MATERIALS AND METHODS: The Japanese trial for AKI in Post-cardiovascular surgery patients by ANP (JAPAN) was a prospective, multicenter, randomized, double-blind, placebo-controlled study conducted in 11 hospitals in Japan. Acute kidney injury was defined as an increase in serum creatinine of at least 0...
December 11, 2016: Journal of Critical Care
https://www.readbyqxmd.com/read/27997722/pitavastatin-suppresses-hyperglycemia-induced-podocyte-injury-via-bone-morphogenetic-protein-7-preservation
#20
Makoto Ohigashi, Miyuki Kobara, Tamotsu Takahashi, Hiroe Toba, Takehiko Wada, Tetsuo Nakata
BACKGROUND: Podocytes form the essential components of the glomerular filtration barrier and play a critical role in diabetic nephropathy. Recent evidence suggests that HMG-CoA reductase inhibitors (statins) exert renoprotective effects. We investigated whether pitavastatin directly suppresses hyperglycemia-induced podocyte injury using cultured podocytes and, if so, the mechanism of the beneficial effects. METHODS AND RESULTS: Cultured podocytes were exposed to media containing normal (NG; 5 mmol/L) or high (HG; 25 mmol/L) glucose for one week...
December 20, 2016: Clinical and Experimental Pharmacology & Physiology
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