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https://www.readbyqxmd.com/read/29332180/cd39-adenosinergic-axis-in-renal-pathophysiology-and-therapeutics
#1
REVIEW
Bellamkonda K Kishore, Simon C Robson, Karen M Dwyer
Extracellular ATP interacts with purinergic type 2 (P2) receptors and elicits many crucial biological functions. Extracellular ATP is sequentially hydrolyzed to ADP and AMP by the actions of defined nucleotidases, such as CD39, and AMP is converted to adenosine, largely by CD73, an ecto-5'-nucleotidase. Extracellular adenosine interacts with P1 receptors and often opposes the effects of P2 receptor activation. The balance between extracellular ATP and adenosine in the blood and extracellular fluid is regulated chiefly by the activities of CD39 and CD73, which constitute the CD39-adenosinergic axis...
January 13, 2018: Purinergic Signalling
https://www.readbyqxmd.com/read/29331868/zinc-supplementation-alleviates-the-progression-of-diabetic-nephropathy-by-inhibiting-the-overexpression-of-oxidative-stress-mediated-molecular-markers-in-streptozotocin-induced-experimental-rats
#2
Susmita Barman, Seetur R Pradeep, Krishnapura Srinivasan
Zinc deficiency during diabetes projects a role for zinc nutrition in the management of diabetic nephropathy. The current study explored whether zinc supplementation protects against diabetic nephropathy through modulation of kidney oxidative stress and stress-induced expression related to the inflammatory process in streptozotocin-induced diabetic rats. Groups of hyperglycemic rats were exposed to dietary interventions for 6 weeks with zinc supplementation (5 times and 10 times the normal level). Supplemental-zinc-fed diabetic groups showed a significant reversal of increased kidney weight and creatinine clearance...
December 11, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29331667/vitamin-d-suppresses-macrophage-infiltration-by-down-regulation-of-trem-1-in-diabetic-nephropathy-rats
#3
Yu Zhao, Yinfeng Guo, Yuteng Jiang, Xiaodong Zhu, Xiaoliang Zhang
This study intends to investigate the effect of active vitamin D (VD) on the expression of triggering receptor expressed on myeloid cells-1 (TREM-1) in the renal tissues of diabetic nephropathy (DN) rats and to explore the impact of TREM-1 on macrophage adhesion and migration. We find that the expressions of TREM-1 and CD68 protein are higher in DN rats compared with rats in the normal control group and that these changes are decreased in the DN + VD group. In vitro, the capacity for macrophage adhesion and migration and the expression of TREM-1 are increased under high-glucose conditions, but VD inhibits this progress...
January 10, 2018: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29331653/gallic-acid-attenuates-type-i-diabetic-nephropathy-in-rats
#4
Mayuresh Sudamrao Garud, Yogesh Anant Kulkarni
Literatures suggest that TGF-β1 have a central role in the progression of diabetic nephropathy and its down regulation can improve the disease condition. Oxidative stress, generation of advanced glycation end products and activation of renin angiotensin system are the connecting links between hyperglycemia and TGF-β1 over expression. Gallic acid is a phytochemical having wide range of biological activities. Gallic acid is reported to have antioxidant and advanced glycation inhibitory activity. It has also shown inhibitory effects on angiotensin converting enzyme...
January 10, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29330473/endothelial-heparan-sulfate-deficiency-reduces-inflammation-and-fibrosis-in-murine-diabetic-nephropathy
#5
Ditmer T Talsma, Kirankumar Katta, Marieke A B Ettema, Berna Kel, Marion Kusche-Gullberg, Moh R Daha, Coen A Stegeman, Jacob van den Born, Lianchun Wang
Inflammation plays a vital role in the development of diabetic nephropathy, but the underlying regulatory mechanisms are only partially understood. Our previous studies demonstrated that, during acute inflammation, endothelial heparan sulfate (HS) contributes to the adhesion and transendothelial migration of leukocytes into perivascular tissues by direct interaction with L-selectin and the presentation of bound chemokines. In the current study, we aimed to assess the role of endothelial HS on chronic renal inflammation and fibrosis in a diabetic nephropathy mouse model...
January 12, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29330340/the-adiponectin-receptor-agonist-adiporon-ameliorates-diabetic-nephropathy-in-a-model-of-type-2-diabetes
#6
Yaeni Kim, Ji Hee Lim, Min Young Kim, Eun Nim Kim, Hye Eun Yoon, Seok Joon Shin, Bum Soon Choi, Yong-Soo Kim, Yoon Sik Chang, Cheol Whee Park
Adiponectin exerts renoprotective effects against diabetic nephropathy (DN) by activating the AMP-activated protein kinase (AMPK)/peroxisome proliferative-activated receptor-α (PPARα) pathway through adiponectin receptors (AdipoRs). AdipoRon is an orally active synthetic adiponectin receptor agonist. We investigated the expression of AdipoRs and the associated intracellular pathways in 27 patients with type 2 diabetes and examined the effects of AdipoRon on DN development in male C57BLKS/J db/db mice, glomerular endothelial cells (GECs), and podocytes...
January 12, 2018: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29328429/anthocyanins-inhibit-high-glucose-induced-renal-tubular-cell-apoptosis-caused-by-oxidative-stress-in-db-db-mice
#7
Jinying Wei, Haijiang Wu, Haiqiang Zhang, Fang Li, Shurui Chen, Baohua Hou, Yonghong Shi, Lijuan Zhao, Huijun Duan
Oxidative stress is an important contributory factor resulting the development of kidney injury in patients with diabetes. Numerous in vitro and in vivo studies have suggested that anthocyanins, natural phenols commonly existing in numerous fruits and vegetables, exhibit important antioxidative, anti‑inflammatory and antihyperlipidemic effects; however, their effects and underlying mechanisms on diabetic nephropathy (DN) have not yet been fully determined. In the present study, the regulation of apoptosis metabolism and antioxidative effects exhibited by anthocyanins [grape seed procyanidin (GSPE) and cyanidin‑3‑O‑β‑glucoside chloride (C3G)] were investigated, and the molecular mechanism underlying this process was investigated in vivo and in vitro...
January 10, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29328400/microrna%C3%A2-146a-napdh-oxidase4-decreases-reactive-oxygen-species-generation-and-inflammation-in-a-diabetic-nephropathy-model
#8
Rong Jun Wan, Yue Hong Li
The present study investigated the role of microRNA (miR)‑146a in a diabetic nephropathy (DN) model, and its molecular mechanism. DN mice were given intraperitoneal injections of streptozotocin (55 mg/kg/day) for 5 consecutive days as an in vivo DN model. The HK‑2 human kidney cell line were exposed to 45% D‑glucose as an in vitro DN model. Firstly, it was demonstrated that miR‑146a expression was inhibited and NAPDH oxidase 4 (Nox4) was increased in DN mice. In HK‑2 cells, overexpression of miR‑146a inhibited Nox4 protein expression and decreased reactive oxygen species (ROS) generation, oxidative stress and inflammation, and suppressed vascular cell adhesion molecule‑1 (VCAM‑1) and intracellular adhesion molecule‑1 (ICAM‑1) protein expression...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29326539/microvascular-outcomes-of-pediatric-onset-type-1-diabetes-mellitus-a-single-center-observational-case-reviews-in-sana-a-yemen
#9
Abdallah Ahmed Gunaid
Microvascular complications of pediatric-onset type 1 diabetes are common in low-income countries. In this study, we aimed at reviewing microvascular outcomes in 6 cases with type 1 diabetes over 14 to 31 years of follow-up. Severe proliferative diabetic retinopathy (PDR) and/or diabetic macular edema (maculopathy) (DME) and overt diabetic nephropathy (macroalbuminuria) were seen among 4 of 6 patients, whereas severe diabetic peripheral neuropathy with Charcot neuroarthropathy was seen in 1 patient only, who had the longest duration of follow-up...
2018: Clinical Medicine Insights. Endocrinology and Diabetes
https://www.readbyqxmd.com/read/29322300/glycemic-control-in-type-2-diabetes-from-medication-nonadherence-to-residual-vascular-risk
#10
Dario Giugliano, Maria Ida Maiorino, Giuseppe Bellastella, Katherine Esposito
Despite the availability of many new treatment options for type 2 diabetes, the proportion of patients achieving the HbA1c target < 7.0% remains around 50%. We put forward the hypothesis that the unchanged HbA1c results, observed in the last decade in type 2 diabetes patients, are also a consequence of medication nonadherence and clinical inertia. Poor medication-taking behavior is usually defined as medication nonadherence and is responsible for uncontrolled hemoglobin A1c level in 23% of cases. Medication nonadherence may also affect clinical outcomes, as diabetic patients with good adherence (≥80%) had a significant 10% lower rate of hospitalization events and a significant 28% lower rate of all-cause mortality when compared with patients with poor adherence (<80%)...
January 10, 2018: Endocrine
https://www.readbyqxmd.com/read/29322013/dillenia-indica-l-attenuates-diabetic-nephropathy-via-inhibition-of-advanced-glycation-end-products-accumulation-in-stz-nicotinamide-induced-diabetic-rats
#11
Navpreet Kaur, Lalit Kishore, Randhir Singh
The present study was aimed to evaluate advanced glycation end products (AGEs) inhibitory activity of alcohol and hydro-alcohol extract (DAE and DHE) of Dillenia indica L. (Family: Dilleniaceae) and its potential in treatment of diabetic nephropathy by targeting markers of oxidative stress. D. indica was evaluated for its in vitro inhibitory activity against formation of AGEs by using bovine serum albumin. Diabetes was induced in male Wistar rats by streptozotocin (65 mg/kg i.p.) 15 min after nicotinamide (230 mg/kg, i...
January 2018: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29320993/distribution-of-glomerular-diseases-in-taiwan-preliminary-report-of-national-renal-biopsy-registry-publication-on-behalf-of-taiwan-society-of-nephrology
#12
Hsien-Fu Chiu, Hung-Chun Chen, Kuo-Cheng Lu, Kuo-Hsiung Shu
BACKGROUND: Despite the development of biomarkers and noninvasive imaging tools, biopsy remains the only method for correctly diagnosing patients with unexplained hematuria, proteinuria and renal failure. Renal biopsy has been performed for several decades in Taiwan; however, a national data registry is still lacking until 2013. METHODS: The Renal Biopsy Registry Committee was established within the Taiwan Society of Nephrology in January 2013. A biopsy registry format, including basic demographic data, baseline clinical features, laboratory data, and clinical and pathological diagnosis was developed...
January 10, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29318219/extending-metformin-use-in-diabetic-kidney-disease-a-pharmacokinetic-study%C3%A2-in%C3%A2-stage-4-diabetic-nephropathy
#13
Ajith Munasinghe Dissanayake, Mark Christopher Wheldon, Jafar Ahmed, Christopher John Hood
Introduction: Metformin use in advanced chronic kidney disease is controversial. This study sought to examine the pharmacokinetics, safety, and efficacy of low-dose metformin in patients with type 2 diabetes and stage 4 chronic kidney disease. Methods: In this open-label, phase I trial, 3 consecutive cohorts (1, 2, and 3) of 6 patients each were recruited to receive 250-, 500-, or 1000-mg once-daily doses of metformin, respectively. All patients underwent a first-dose pharmacokinetic profile and weekly trough metformin concentrations for the duration of 4 weeks of daily therapy...
July 2017: KI Reports
https://www.readbyqxmd.com/read/29317956/effect-of-angiotensin-converting-enzyme-inhibitor-calcium-antagonist-combination-therapy-on-renal-function-in-hypertensive-patients-with-chronic-kidney-disease-chikushi-anti-hypertension-trial-benidipine-and-perindopril
#14
Tetsu Okuda, Keisuke Okamura, Kazuyuki Shirai, Hidenori Urata
Background: Appropriate blood pressure control suppresses progression of chronic kidney disease (CKD). If an angiotensin-converting enzyme (ACE) inhibitor is ineffective, adding a calcium antagonist is recommended. We compared the long-term effect of two ACE inhibitor/calcium antagonist combinations on renal function in hypertensive patients with CKD. Methods: Patients who failed to achieve the target blood pressure (systolic/diastolic: < 130/80 mm Hg) with perindopril monotherapy were randomized to either combined therapy with perindopril and the L-type calcium antagonist amlodipine (group A) or perindopril and the T/L type calcium antagonist benidipine (group B)...
February 2018: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/29317203/alpha-mangostin-attenuates-diabetic-nephropathy-in-association-with-suppression-of-acid-sphingomyelianse-and-endoplasmic-reticulum-stress
#15
Tingting Liu, Wang Duan, Paul Nizigiyimana, Lin Gao, Zhouning Liao, Boya Xu, Lerong Liu, Minxiang Lei
AIMS: Diabetic nephropathy is a common complication of diabetes, but there are currently few treatment options. The aim of this study was to gain insight into the effect of alpha-mangostin on diabetic nephropathy and possible related mechanisms. METHODS: Goto-Kakizaki rats were used as a diabetic model and received alpha-mangostin or desipramine treatment with normal saline as a control. Ten age-matched Sprague Dawley rats were used as normal controls and treated with normal saline...
January 6, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29315768/the-effect-of-uric-acid-lowering-treatment-on-albuminuria-and-renal-function-in-type-1-diabetes-a-randomized-clinical-trial
#16
S Pilemann-Lyberg, F Persson, J Frystyk, P Rossing
Significant improvements have been made in the management of Type 1 diabetes over the last three decades [1]. We wanted to examine if uric acid lowering with allopurinol changes the urinary albumin excretion rate (UAER) or 51 Cr EDTA GFR in people with Type 1 diabetes and diabetic nephropathy. This article is protected by copyright. All rights reserved.
January 7, 2018: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/29315280/gremlin-regulates-podocyte-apoptosis-via-transforming-growth-factor-%C3%AE-tgf-%C3%AE-pathway-in-diabetic-nephropathy
#17
Xiao-Bing Wang, Hong Zhu, Wei Song, Jian-Hua Su
BACKGROUND Gremlin has been reported to be up-regulated in glomerular mesangial cells in diabetic nephropathy (DN). However, the regulation of gremlin in podocytes is still rarely reported. This study aimed to investigate the underlying mechanisms by which gremlin mediates the pathogenesis of DN via transforming growth factor-β (TGF-β) signaling pathways. MATERIAL AND METHODS Lentiviral and RNAi transfection were performed to increase and decrease gremlin expression in high-glucose conditions. Expression at the mRNA and protein level was detected by RT-qPCR and Western blotting...
January 9, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29311680/inhibition-of-insulin-resistance-by-pge1-via-autophagy-dependent-fgf21-pathway-in-diabetic-nephropathy
#18
Wei Wei, Xing-Rong An, Shi-Jie Jin, Xiao-Xue Li, Ming Xu
Insulin resistance is a critical process in the initiation and progression of diabetic nephropathy (DN). Alprostadil (Prostaglandin E1, PGE1) had protective effects on renal function. However, it is unknown whether PGE1 inhibited insulin resistance in renal tubule epithelial cells via autophagy, which plays a protective role in DN against insulin resistance. Insulin resistance was induced by palmitic acid (PA) in human HK-2 cells, shown as the decrease of insulin-stimulated AKT phosphorylation, glucose transporter-4 (GLUT4), glucose uptake and enhanced phosphorylation of insulin receptor substrate 1(IRS-1) at site serine 307 (pIRS-1ser307) and downregulated expression of IRS-1...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29311660/defining-phenotypes-in-diabetic-nephropathy-a-novel-approach-using-a-cross-sectional-analysis-of-a-single-centre-cohort
#19
Rosa M Montero, Athula Herath, Ashfaq Qureshi, Ehsanollah Esfandiari, Charles D Pusey, Andrew H Frankel, Frederick W K Tam
The global increase in Diabetes Mellitus (DM) has led to an increase in DM-Chronic Kidney Disease (DM-CKD). In this cross-sectional observational study we aimed to define phenotypes for patients with DM-CKD that in future may be used to individualise treatment We report 4 DM-CKD phenotypes in 220 patients recruited from Imperial College NHS Trust clinics from 2004-2012. A robust principal component analysis (PCA) was used to statistically determine clusters with phenotypically different patients. 163 patients with complete data sets were analysed: 77 with CKD and 86 with DM-CKD...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29311586/the-corneal-subbasal-nerve-plexus-and-thickness-of-the-retinal-layers-in-pediatric-type-1-diabetes-and-matched-controls
#20
Aline Götze, Sophie von Keyserlingk, Sabine Peschel, Ulrike Jacoby, Corinna Schreiver, Bernd Köhler, Stephan Allgeier, Karsten Winter, Martin Röhlig, Anselm Jünemann, Rainer Guthoff, Oliver Stachs, Dagmar-C Fischer
Optical coherence tomography (OCT) of the retina and corneal confocal laser scanning microscopy (CLSM) of the subbasal nerve plexus (SBP) are noninvasive techniques for quantification of the ocular neurodegenerative changes in individuals with type 1 diabetes mellitus (T1DM). In adult T1DM patients these changes are hardly related to T1DM only. Instead, ageing and/or lifestyle associated comorbidities have to be considered as putative confounding variables. Therefore, we investigated pediatric T1DM patients (n = 28; 14...
January 8, 2018: Scientific Reports
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