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https://www.readbyqxmd.com/read/28294194/phosphodiesterase-5-inhibition-preserves-renal-hemodynamics-and-function-in-mice-with-diabetic-kidney-disease-by-modulating-mir-22-and-bmp7
#1
Riccardo Pofi, Daniela Fiore, Rita De Gaetano, Giuseppe Panio, Daniele Gianfrilli, Carlotta Pozza, Federica Barbagallo, Yang Kevin Xiang, Konstantinos Giannakakis, Susanna Morano, Andrea Lenzi, Fabio Naro, Andrea M Isidori, Mary Anna Venneri
Diabetic Nephropathy (DN) is the leading cause of end-stage renal disease. Preclinical and experimental studies show that PDE5 inhibitors (PDE5is) exert protective effects in DN improving perivascular inflammation. Using a mouse model of diabetic kidney injury we investigated the protective proprieties of PDE5is on renal hemodynamics and the molecular mechanisms involved. PDE5i treatment prevented the development of DN-related hypertension (P < 0.001), the increase of urine albumin creatinine ratio (P < 0...
March 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28289780/multifaceted-interaction-of-bone-muscle-lifestyle-interventions-and-metabolic-and-cardiovascular-disease-role-of-osteocalcin
#2
REVIEW
I Levinger, T C Brennan-Speranza, A Zulli, L Parker, X Lin, J R Lewis, B B Yeap
Undercarboxylated osteocalcin (ucOC) may play a role in glucose homeostasis and cardiometabolic health. This review examines the epidemiological and interventional evidence associating osteocalcin (OC) and ucOC with metabolic risk and cardiovascular disease. The complexity in assessing such correlations, due to the observational nature of human studies, is discussed. Several studies have reported that higher levels of ucOC and OC are correlated with lower fat mass and HbA1c. In addition, improved measures of glycaemic control via pharmacological and non-pharmacological (e...
March 13, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28266644/renal-systolic-time-intervals-derived-from-intra-renal-artery-doppler-as-a-novel-predictor-of-adverse-cardiac-outcomes
#3
Wen-Hsien Lee, Po-Chao Hsu, Chun-Yuan Chu, Szu-Chia Chen, Hung-Hao Lee, Meng-Kuang Lee, Chee-Siong Lee, Hsueh-Wei Yen, Tsung-Hsien Lin, Wen-Chol Voon, Wen-Ter Lai, Sheng-Hsiung Sheu, Po-Lin Kuo, Ho-Ming Su
The aim of this study was to evaluate the use of renal systolic time intervals measured by electrocardiographic gated Doppler ultrasonography for predicting adverse cardiac events. This longitudinal observation study enrolled 205 patients. Renal systolic time intervals, including pre-ejection period (PEP) and ejection time (ET), and ratio of renal PEP to ET, were measured by electrocardiographic gated Doppler ultrasound. The 14 adverse cardiac events identified in this population included 9 cardiac deaths and 5 hospitalizations for heart failure during an average follow up of 30...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28266128/ablation-of-endothelial-prolyl-hydroxylase-domain-protein-2-promotes-renal-vascular-remodelling-and-fibrosis-in-mice
#4
Shuo Wang, Heng Zeng, Sean T Chen, Liying Zhou, Xue-Jiao Xie, Xiaochen He, Yong-Kang Tao, Qin-Hui Tuo, Changqin Deng, Duan-Fang Liao, Jian-Xiong Chen
Accumulating evidence demonstrates that hypoxia-inducible factor (HIF-α) hydroxylase system has a critical role in vascular remodelling. Using an endothelial-specific prolyl hydroxylase domain protein-2 (PHD2) knockout (PHD2(EC) KO) mouse model, this study investigates the regulatory role of endothelial HIF-α hydroxylase system in the development of renal fibrosis. Knockout of PHD2 in EC up-regulated the expression of HIF-1α and HIF-2α, resulting in a significant decline of renal function as evidenced by elevated levels of serum creatinine...
March 7, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28263803/prostaglandin-e2-regulates-renal-function-in-c57-bl6-mouse-with-5-6-nephrectomy
#5
J Jin, Q Tang, Z Li, Z Zhao, Z Zhang, L Lu, T Zhu, P M Vanhoutte, S W Leung, R Tu, Y Shi
AIMS: To investigate the roles of cyclooxygenases (COX) and their metabolites in C57/BL6 mice with 5/6 nephrectomy, an animal model of chronic renal failure. MAIN METHODS: C57/BL6 mice were grouped into sham-operated (2K), one kidney removal (1K) and 5/6 nephrectomy groups (5/6Nx). Renal resistive index was measured by ultrasonography. Blood, aortae, renal arteries and renal cortex were collected for measurement of kidney function, assessment of vascular responsiveness, Western blotting, immuohistochemistry and enzyme-linked immunosorbent assays...
March 2, 2017: Life Sciences
https://www.readbyqxmd.com/read/28260477/doppler-ultrasonography-findings-during-recovery-period-of-transplanted-kidney-after-infarction-and-necrosis-due-to-renal-vein-thrombosis-a-case-report
#6
Funda Ulu Ozturk, Nihal Uslu, Eda Yilmaz Akcay, Mehmet Haberal
A 47-year-old male patient underwent living-related renal transplant. On day 3 posttransplant, without evidence of associated clinical symptoms, the patient's serum creatinine levels had increased. The patient was given immunosuppressive medication, and a followup Doppler ultrasonography revealed hypoechoic areas in the inferior pole of the renal parenchyma. Eventually, on day 25, there was no perfusion in the superior and inferior poles of the transplanted kidney. No venous flow was shown in the middle segment, and only arterial vascularization with a high resistive index and negative diastolic phase was observed...
February 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28257932/association-between-muscular-strength-and-intrarenal-vascular-resistance-in-middle-aged-and-older-individuals
#7
Keisei Kosaki, Atsuko Kamijo-Ikemori, Takeshi Sugaya, Koichiro Tanahashi, Hiroshi Kumagai, Yuriko Sawano, Yosuke Osuka, Kiyoji Tanaka, Kenjiro Kimura, Yugo Shibagaki, Seiji Maeda
A strategy for the preservation of intrarenal vasculature conditions remains obscure in middle-aged and older individuals without the renal disease. In the present study, we sought to identify whether the maintenance of muscular strength is an effective method of preserving the intrarenal vasculature condition of middle-aged and older individuals. Therefore, we applied a cross-sectional approach for investigating the relationship between muscular strength and the condition of the intrarenal vasculature. In 169 middle-aged and older individuals without renal disease, handgrip strength (HGS) and the renal resistive index (RRI) were measured as the parameters of muscular strength and intrarenal vascular resistance, respectively...
February 28, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28244288/characteristics-and-impact-factors-of-renal-threshold-for-glucose-excretion-in-patients-with-type-2-diabetes-mellitus
#8
Xiao Dan Yue, Jing Yu Wang, Xin Rong Zhang, Ju Hong Yang, Chun Yan Shan, Miao Yan Zheng, Hui Zhu Ren, Yi Zhang, Shao Hua Yang, Zhen Hong Guo, Bai Chang, Bao Cheng Chang
Sodium glucose co-transporter 2 (SGLT-2) inhibitors are newly developed but promising medicine for type 2 diabetes. However, patients with a different renal threshold for glucose excretion (RT(G)) may have a different reaction to this medicine. Therefore, the objective of this study was to investigate the characteristics of RT(G) and its impact factors in patients with type 2 diabetes mellitus (T2DM). The clinical and laboratory data of 36 healthy individuals and 168 in-hospital patients with T2DM were collected and analyzed, RT(G) was calculated using blood glucose (BG) measured by dynamic BG monitoring, urinary glucose excretion (UGE) and estimated glomerular filtration rate (eGFR)...
April 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28219583/risk-factors-affecting-graft-and-patient-survivals-after-transplantation-from-deceased-donors-in-a-developing-country-a-single-center-experience
#9
Y Ayar, A Ersoy, G Ocakoglu, A Yildiz, A Oruc, H Soyak, M Calapkulu, A B Sahin, N Bolca Topal, E Okeer, B Coskun, O Kaygisiz, Y Kordan, H Vuruskan
AIM: The aim of this study was to evaluate risk factors affecting graft and patient survival after transplantation from deceased donors. METHODS: We retrospectively analyzed the outcomes of 186 transplantations from deceased donors performed at our center between 2006 and 2014. The recipients were divided into two groups: Group I (141 recipients without graft loss) and Group II (45 recipients with graft loss). Kaplan-Meier, log-rank test, and Cox proportional hazard regressions were used...
March 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28215245/effects-of-renal-sympathetic-denervation-on-blood-pressure-sleep-apnoea-severity-and-metabolic-indices-a-prospective-cohort-study
#10
Florrie Daniels, Simon De Freitas, Andrew Smyth, John Garvey, Conor Judge, John Joseph Gilmartin, Faisal Sharif
BACKGROUND: Catheter-based renal sympathetic denervation (RSD) significantly reduces blood pressure in patients with resistant hypertension, who commonly have obstructive sleep apnoea (OSA). These patients are considered particularly responsive to the antihypertensive effects of RSD, but additional benefits of metabolic control on sleep apnoea severity have not been thoroughly investigated. METHODS: The effect of RSD was evaluated prospectively in a cohort of patients with OSA (apnoea-hypopnea index (AHI) ≥15 events per hour and an Epworth Sleepiness Scale (ESS) score ≤9) and treatment resistant hypertension...
February 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28213404/hydrogen-sulfide-alleviates-hypertensive-kidney-dysfunction-through-an-epigenetic-mechanism
#11
Gregory Weber, Sathnur Pushpakumar, Utpal Sen
Hypertension is a major risk factor for chronic kidney disease (CKD) and renal inflammation is an integral part in this pathology. Hydrogen sulfide (H2S) has been shown to mitigate renal damage through reduction in blood pressure and reactive oxygen species; however, the exact mechanisms are not clear. While several studies have underlined the role of epigenetics in renal inflammation and dysfunction, the mechanisms through which epigenetic regulators play role in hypertension are not well defined. In this study, we sought to identify if microRNAs are dysregulated in response to angiotensin-II (Ang-II) induced hypertension in the kidney and whether H2S donor, GYY 4137, could reverse the microRNA alteration and kidney function...
February 17, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28211216/low-dose-eplerenone-treatment-decreases-aortic-stiffness-in-patients-with-resistant-hypertension
#12
Tatjana Kalizki, Bernhard M W Schmidt, Ulrike Raff, Annemarie Reinold, Thomas K Schwarz, Markus P Schneider, Roland E Schmieder, Andreas Schneider
Vascular damage is aggravated in animal models of hypertension with mineralocorticoid (MR) excess and in hypertensive patients with primary hyperaldosteronism. MR antagonism has shown to provide effective blood pressure (BP)-control in patients with treatment resistant hypertension (TRH), but the concurrent effects on the vasculature have not been examined. In a randomized, double-blinded, placebo-controlled parallel-group study, 51 patients with TRH received either eplerenone 50 mg or placebo for 6 months together with additional antihypertensives titrated to achieve a BP target of <140/90 mm Hg...
February 17, 2017: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/28165555/nutritional-status-and-intrarenal-arterial-stiffness-in-cardiorenal-syndrome-a-pilot-study
#13
A Gigante, F Di Mario, B Barbano, E Rosato, G Di Lazzaro Giraldi, R Pofi, M L Gasperini, D Amoroso, R Cianci, A Laviano
OBJECTIVE: Cardio-Renal Syndrome (CRS) is a condition, which is more frequently observed in clinical practice. The aim of this study is to explore nutritional status and intrarenal arterial stiffness in patients affected by CRS. PATIENTS AND METHODS: 14 consecutive CRS patients, screened for anthropometry, biochemistry, nutritional and metabolic status underwent renal Doppler ultrasound and whole-body bioimpedance spectroscopy (BIS). RESULTS: We found a positive correlation between phase angle (PA) and CKD-EPI and MDRD (p=0...
January 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28150225/altered-oscillation-of-doppler-derived-renal-and-renal-interlobar-venous-flow-velocities-in-hypertensive-and-diabetic-patients
#14
Yusuke Kudo, Taisei Mikami, Mutsumi Nishida, Kazunori Okada, Sanae Kaga, Nobuo Masauzi, Satomi Omotehara, Hitoshi Shibuya, Kaoru Kahata, Chikara Shimizu
BACKGROUND AND PURPOSE: Flow velocity oscillation rate (FVOR) of the renal interlobar vein has been reported to be decreased in patients with urinary obstruction or diabetic nephropathy, and increased in those with hypertension during pregnancy. To clarify the clinical role of the renal interlobar venous FVOR, we investigated the flow velocity patterns of the renal vessels in patients with hypertension (HT) and/or diabetes (DM). METHODS AND RESULTS: Pulsed-wave Doppler sonography was performed in 34 patients: 15 with HT, 10 with DM, and nine with both HT and DM (HT-DM)...
February 1, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28137609/dietary-nitrate-load-lowers-blood-pressure-and-renal-resistive-index-in-patients-with-chronic-kidney-disease-a-pilot-study
#15
Stephan Kemmner, Georg Lorenz, Jana Wobst, Thorsten Kessler, Ming Wen, Roman Günthner, Konrad Stock, Uwe Heemann, Klaus Burkhardt, Marcus Baumann, Christoph Schmaderer
Beetroot has a high concentration of inorganic nitrate, which can serially reduced to form nitrite and nitric oxide (NO) after oral ingestion. Increased renal resistive index (RRI) measured by Doppler ultrasonography is associated with higher cardiovascular mortality in hypertensive patients with reduced renal function over time defined as chronic kidney disease (CKD). Our aim was to investigate whether the supplementation of dietary nitrate by administration of beetroot juice is able to reduce blood pressure and renal resistive index (RRI) as prognostic markers for cardiovascular mortality in CKD patients...
April 1, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28115517/twenty-four-hour-blood-pressure-monitoring-to-predict-and-assess-impact-of-renal-denervation-the-denerhtn-study-renal-denervation-for-hypertension
#16
Philippe Gosse, Antoine Cremer, Helena Pereira, Guillaume Bobrie, Gilles Chatellier, Bernard Chamontin, Pierre-Yves Courand, Pascal Delsart, Thierry Denolle, Caroline Dourmap, Emile Ferrari, Xavier Girerd, Jean Michel Halimi, Daniel Herpin, Pierre Lantelme, Matthieu Monge, Claire Mounier-Vehier, Jean-Jacques Mourad, Olivier Ormezzano, Jean Ribstein, Patrick Rossignol, Marc Sapoval, Bernard Vaïsse, Faiez Zannad, Michel Azizi
The DENERHTN trial (Renal Denervation for Hypertension) confirmed the blood pressure (BP) lowering efficacy of renal denervation added to a standardized stepped-care antihypertensive treatment for resistant hypertension at 6 months. We report here the effect of denervation on 24-hour BP and its variability and look for parameters that predicted the BP response. Patients with resistant hypertension were randomly assigned to denervation plus stepped-care treatment or treatment alone (control). Average and standard deviation of 24-hour, daytime, and nighttime BP and the smoothness index were calculated on recordings performed at randomization and 6 months...
March 2017: Hypertension
https://www.readbyqxmd.com/read/28110120/effects-of-two-different-dialytic-treatments-on-inflammatory-markers-in-people-with-end-stage-renal-disease-with-and-without-type-2-diabetes-mellitus
#17
Giuseppe Derosa, Carmelo Libetta, Pasquale Esposito, Ilaria Borettaz, Carmine Tinelli, Angela D'angelo, Pamela Maffioli
This study was aimed to evaluate the effects on some inflammatory markers of two dialytic treatments [bicarbonate dialysis (BHD) and hemodiafiltration (HDF)] in patients with severe chronic kidney disease. We evaluated: blood glucose, homeostasis model assessment insulin resistance index, homocistein (Hcs), high sensitivity C-reactive protein (hs-CRP), fibrinogen, lipoprotein (a) [Lp(a)], metalloproteinases-2, and -9 (MMP-2 and MMP-9), and soluble receptor for advanced glycation end products (sRAGE). Considering the all sample, we observed a decrease of sRAGE with BHD, but not with HDF...
January 18, 2017: Cytokine
https://www.readbyqxmd.com/read/28103361/the-relationship-between-body-composition-and-renal-resistive-index-in-new-diagnosed-hypertensive-patients
#18
S Karakan, B Inan, A Aktas, H Yavuz
Objective: Obesity is a major modifiable risk factor for atherosclerosis. Thus, early risk markers are needed to identify obese subjects. The objective of this study was to examine the relationship between body composition and arterial stiffness documented by Doppler-derived renal resistive index (RRI). Materials/Subjects and Methods: We enrolled 120 new-diagnosed hypertensive patients (mean age 45±8 years) who were admitted to our nephrology clinic. Body fat percentage (BFP) was measured by bioelectrical impedance (BIA)...
February 18, 2016: West Indian Medical Journal
https://www.readbyqxmd.com/read/28098101/insulin-resistance-in-predialytic-nondiabetic-chronic-kidney-disease-patients-a-hospital-based-study-in-eastern-uttar-pradesh-india
#19
Neha Srivastava, R G Singh, Alok Kumar, Shivendra Singh
Most investigations have focused on patients with end-stage renal disease (ESRD). More recently, due to increased recognition of the high prevalence of moderate-to-severe chronic kidney disease (CKD), attention has been redirected to this patient population to identify risk factors associated with hospitalization, death, and progression to ESRD. The objective of this study was to examine the degree and determinants of insulin resistance (IR) in predialytic, nondiabetic, CKD patients. Our study is a hospital-based cross-sectional study...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28074057/development-of-new-polymyxin-derivatives-for-multi-drug-resistant-gram-negative-infections
#20
REVIEW
Pamela Brown, Michael J Dawson
Over the last decade, there has been a resurgence of interest in polymyxins owing to the rapid rise in multi-drug resistant Gram-negative bacteria against which polymyxins offer a last-resort treatment. Although having excellent antibacterial activity, the clinical utility of polymyxins is limited by toxicity, especially renal toxicity. There is much interest therefore in developing polymyxin analogues with an improved therapeutic index. This review describes recent work aimed at improving the activity and/or reducing the toxicity of polymyxins...
January 11, 2017: Journal of Antibiotics
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