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salt and progression of renal disease

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https://www.readbyqxmd.com/read/27875953/management-of-hypertension-in-patients-with-chronic-kidney-disease-in-asia
#1
Qi-Fang Huang, Satoshi Hoshide, Hao-Min Cheng, Sungha Park, Chang-Gyu Park, Chen-Huan Chen, Kazuomi Kario, Ji-Guang Wang
Hypertension is both a cause and consequence of chronic kidney disease (CKD). According to the Chinese national survey in 2007-2010, the prevalence of CKD was much higher in hypertensive patients (18.9%, n=16,691) than in the overall population sample (10.8%, n=47,204). CKD in hypertension confers risks to the kidneys as well as other organs. Probably because of high dietary salt intake, Asian hypertensive patients with CKD show high prevalence of non-dipping and reversed dipping blood pressure pattern, and may have even higher risks of cardiovascular disease...
November 22, 2016: Current Hypertension Reviews
https://www.readbyqxmd.com/read/27853386/selective-cyclooxygenase-2-inhibitor-use-and-progression-of-renal-function-in-patients-with-chronic-kidney-disease-a-single-center-retrospective-cohort-study
#2
Wisit Kaewput, Preedee Disorn, Bancha Satirapoj
BACKGROUND: The use of selective COX-2 (sCOX-2) inhibitors with acute kidney injury, salt water retention, and cardiovascular events have been correlated in subjects with normal kidney function, but sCOX-2 inhibitor use concerning the progression of chronic kidney disease (CKD) remains uncertain. OBJECTIVES: To determine the progression of renal function and electrolyte abnormalities among CKD patients after using sCOX-2 inhibitors during short- and long-term periods...
2016: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/27775022/proteomic-and-phosphoproteomic-analysis-of-renal-cortex-in-a-salt-load-rat-model-of-advanced-kidney-damage
#3
Shaoling Jiang, Hanchang He, Lishan Tan, Liangliang Wang, Zhengxiu Su, Yufeng Liu, Hongguo Zhu, Menghuan Zhang, Fan Fan Hou, Aiqing Li
Salt plays an essential role in the progression of chronic kidney disease and hypertension. However, the mechanisms underlying pathogenesis of salt-induced kidney damage remain largely unknown. Here, Sprague-Dawley rats, that underwent 5/6 nephrectomy (5/6Nx, a model of advanced kidney damage) or sham operation, were treated for 2 weeks with a normal or high-salt diet. We employed aTiO2 enrichment, iTRAQ labeling and liquid-chromatography tandem mass spectrometry strategy for proteomic and phosphoproteomic profiling of the renal cortex...
October 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27760997/mineralocorticoid-receptor-as-a-therapeutic-target-in-chronic-kidney-disease-and-hypertension
#4
Shigeru Shibata, Kenichi Ishizawa, Shunya Uchida
The kidney has a central role in long-term control of blood pressure, and decreased kidney function is a common but difficult-to-treat cause of hypertension. Conversely, elevated blood pressure contributes to the progression of chronic kidney disease. Steroid hormone aldosterone and its receptor mineralocorticoid receptor (MR) contribute to hypertension by increasing renal salt reabsorption and promote kidney dysfunction through direct effects on renal parenchymal cells. Accumulating data indicate that various mechanisms affect aldosterone-MR signaling...
October 20, 2016: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/27754104/os-21-09-dipping-pattern-of-blood-pressure-and-renal-injury-in-dahl-salt-sensitive-hypertensive-rats
#5
Akira Nishiyama, Abu Sufiun, Yoshihide Fujisawa, Asadur Rahman, Daisuke Nakano, Hirofumi Hitomi
OBJECTIVE: It has been indicated that non-dipper pattern of circadian rhythm of blood pressure (BP) is a great risk of cardiovascular disease, which is accompanied by impaired renal function and proteinuria. Here, we aimed to investigate the circadian rhythm of BP during the progression of renal injury in Dahl salt-sensitive (DSS) hypertensive rats. DESIGN AND METHOD: DSS rats were treated with a high salt diet (HS; 8% NaCl) for 10 weeks (n = 10). RESULTS: Before starting a HS diet, the difference in mean arterial pressure (MAP) between dark and light period was 6...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754003/js-ish-isn-2-role-of-the-kidney-in-resistant-hypertension-why-so-resistant-to-bp-control-in-ckd-patients
#6
George Bakris
Resistant hypertension is defined as a blood pressure above 140/90 mmHg despite adherence to a combination of at least three optimally dosed antihypertensive medications, one of which is a diuretic. Chronic kidney disease (CKD) is one of the more common patient comorbidities associated with resistant hypertension. Recommended low-salt diet and triple antihypertensive drug regimens that include a diuretic, should be complemented by the sequential addition of other antihypertensive drugs. CKD is associated with premature vascular ageing, characterized by accelerated arteriosclerosis or atherosclerosis and endothelial dysfunction...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27753815/ssa-05-2-hypertension-and-kidney-complication-in-africa
#7
Solomon Kadiri
Hypertension prevalence rates in most urbanized areas of Africa range from 20-30%, with a recent systematic review reporting 16.2% for sub-Saharan Africa. These rates are lower than those in the West but the age standardized rates are higher than in other regions of the world. The attendant morbidity and mortality are disproportionately high. For example, failure of nocturnal dipping and microalbuminuria, predictive of vascular disease, occur relatively early in the course of hypertension and predispose to early vascular disease...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27753801/ssa-01-4-the-characteristics-of-arterial-stiffness-in-east-asia
#8
Chen-Huan Chen
Aging causes progressive changes in the structure and function of the large arteries that adversely impact the heart and vital organs. Vascular aging is a major independent risk factor for the development of cardiovascular diseases and events. Arterial stiffening is the dominant hemodynamic manifestation of vascular aging and a major independent predictor for incident hypertension. Arterial stiffening is therefore responsible for the very high residual lifetime risk for hypertension for middle-aged and elderly individuals...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27736813/longitudinal-changes-in-measured-glomerular-filtration-rate-renal-fibrosis-and-biomarkers-in-a-rat-model-of-type-2-diabetic-nephropathy
#9
Zhi Su, Deborah Widomski, Ji Ma, Marian Namovic, Arthur Nikkel, Laura Leys, Lauren Olson, Katherine Salte, Diana Donnelly-Roberts, Timothy Esbenshade, Steve McGaraughty
BACKGROUND: Obese ZSF-1 rats display many features of human type II diabetes including nephropathy (DN). The study aimed to further understand the relevance of this model to DN, for which glomerular filtration rate (GFR), renal fibrosis and several urinary/tissue biomarkers was followed over 24 weeks in ZSF-1 rats. METHODS: Intact/sham or uninephrectomized male and female ZSF-1 rats were studied. GFR was measured by transdermal clearance of fluorescein isothiocyanate-sinistrin...
October 14, 2016: American Journal of Nephrology
https://www.readbyqxmd.com/read/27692815/targeted-disruption-of-cd40-in-a-genetically-hypertensive-rat-model-attenuates-renal-fibrosis-and-proteinuria-independent-of-blood-pressure
#10
Steven T Haller, Sivarajan Kumarasamy, David A Folt, Leah M Wuescher, Stanislaw Stepkowski, Manish Karamchandani, Harshal Waghulde, Blair Mell, Muhammad Chaudhry, Kyle Maxwell, Siddhi Upadhyaya, Christopher A Drummond, Jiang Tian, Wanda E Filipiak, Thomas L Saunders, Joseph I Shapiro, Bina Joe, Christopher J Cooper
High blood pressure is a common cause of chronic kidney disease. Because CD40, a member of the tumor necrosis factor receptor family, has been linked to the progression of kidney disease in ischemic nephropathy, we studied the role of Cd40 in the development of hypertensive renal disease. The Cd40 gene was mutated in the Dahl S genetically hypertensive rat with renal disease by targeted-gene disruption using zinc-finger nuclease technology. These rats were then given low (0.3%) and high (2%) salt diets and compared...
September 28, 2016: Kidney International
https://www.readbyqxmd.com/read/27679859/angiotensin-type-2-at-2-receptor-activation-reduces-renal-fibrosis-in-cyclosporine-nephropathy-evidence-for-blood-pressure-independent-effect
#11
Giovanna Castoldi, Cira R T di Gioia, Raffaella Carletti, Francesca Roma, Gianpaolo Zerbini, Andrea Stella
Compound 21 (C21), selective agonist of AT2 receptors, shows antinflammatory effects in hypertension and nephroprotection in diabetes. The aim of this study was to evaluate the effects of C21 in cyclosporine nephropathy, which is characterized mainly by tubulo-interstitial fibrosis. Ten days before and during the experimental periods, low-salt diet was administered to Sprague Dawley rats. Cyclosporine-A (15mg/kg/day, i.p.) and cyclosporine-A plus C21 (0.3 mg/kg /day, i.p) were administered for 1 and 4 weeks...
September 27, 2016: Bioscience Reports
https://www.readbyqxmd.com/read/27643378/ssa-05-2-hypertension-and-kidney-complication-in-africa
#12
Solomon Kadiri
Hypertension prevalence rates in most urbanized areas of Africa range from 20-30%, with a recent systematic review reporting 16.2% for sub-Saharan Africa. These rates are lower than those in the West but the age standardized rates are higher than in other regions of the world. The attendant morbidity and mortality are disproportionately high. For example, failure of nocturnal dipping and microalbuminuria, predictive of vascular disease, occur relatively early in the course of hypertension and predispose to early vascular disease...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27643029/os-21-09-dipping-pattern-of-blood-pressure-and-renal-injury-in-dahl-salt-sensitive-hypertensive-rats
#13
Akira Nishiyama, Abu Sufiun, Yoshihide Fujisawa, Asadur Rahman, Daisuke Nakano, Hirofumi Hitomi
OBJECTIVE: It has been indicated that non-dipper pattern of circadian rhythm of blood pressure (BP) is a great risk of cardiovascular disease, which is accompanied by impaired renal function and proteinuria. Here, we aimed to investigate the circadian rhythm of BP during the progression of renal injury in Dahl salt-sensitive (DSS) hypertensive rats. DESIGN AND METHOD: DSS rats were treated with a high salt diet (HS; 8% NaCl) for 10 weeks (n = 10). RESULTS: Before starting a HS diet, the difference in mean arterial pressure (MAP) between dark and light period was 6...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27642914/js-ish-isn-2-role-of-the-kidney-in-resistant-hypertension-why-so-resistant-to-bp-control-in-ckd-patients
#14
George Bakris
Resistant hypertension is defined as a blood pressure above 140/90 mmHg despite adherence to a combination of at least three optimally dosed antihypertensive medications, one of which is a diuretic. Chronic kidney disease (CKD) is one of the more common patient comorbidities associated with resistant hypertension. Recommended low-salt diet and triple antihypertensive drug regimens that include a diuretic, should be complemented by the sequential addition of other antihypertensive drugs. CKD is associated with premature vascular ageing, characterized by accelerated arteriosclerosis or atherosclerosis and endothelial dysfunction...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27642870/ssa-01-4-the-characteristics-of-arterial-stiffness-in-east-asia
#15
Chen-Huan Chen
Aging causes progressive changes in the structure and function of the large arteries that adversely impact the heart and vital organs. Vascular aging is a major independent risk factor for the development of cardiovascular diseases and events. Arterial stiffening is the dominant hemodynamic manifestation of vascular aging and a major independent predictor for incident hypertension. Arterial stiffening is therefore responsible for the very high residual lifetime risk for hypertension for middle-aged and elderly individuals...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27597769/chronic-cathepsin-inhibition-by-e-64-in-dahl-salt-sensitive-rats
#16
Gregory Blass, Vladislav Levchenko, Daria V Ilatovskaya, Alexander Staruschenko
Cysteine cathepsins are lysosomal enzymes expressed in the kidneys and other tissues, and are involved in the maturation and breakdown of cellular proteins. They have been shown to be integrally involved in the progression of many cardiovascular and renal diseases. The goal of this study was to determine the involvement of cysteine cathepsins in the development of salt-sensitive hypertension and associated kidney damage. In our experiments, Dahl salt-sensitive (SS) rats were fed an 8% high salt NaCl diet and intravenously infused with the irreversible cysteine cathepsin inhibitor E-64 (1 mg/day) or the vehicle (control)...
September 2016: Physiological Reports
https://www.readbyqxmd.com/read/27465994/early-development-of-podocyte-injury-independently-of-hyperglycemia-and-elevations-in-arterial-pressure-in-nondiabetic-obese-dahl-ss-leptin-receptor-mutant-rats
#17
Kasi C McPherson, Lateia Taylor, Ashley C Johnson, Sean P Didion, Aron M Geurts, Michael R Garrett, Jan M Williams
The current study examined the effect of obesity on the development of renal injury within the genetic background of the Dahl salt-sensitive rat with a dysfunctional leptin receptor derived from zinc-finger nucleases (SS(LepR)mutant strain). At 6 wk of age, body weight was 35% higher in the SS(LepR)mutant strain compared with SSWT rats and remained elevated throughout the entire study. The SS(LepR)mutant strain exhibited impaired glucose tolerance and increased plasma insulin levels at 6 wk of age, suggesting insulin resistance while SSWT rats did not...
October 1, 2016: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/27454938/high-salt-diet-induces-outward-remodeling-of-efferent-arterioles-in-mice-with-reduced-renal-mass
#18
Liang Zhao, Yufang Gao, Xiaoyun Cao, Danchen Gao, Suhan Zhou, Suping Zhang, Xiaoxia Cai, Feng Han, Christopher S Wilcox, Lingli Li, En Yin Lai
AIM: The glomerular filtration rate (GFR) falls progressively in chronic kidney disease (CKD) which is caused by a reduction in the number of functional nephrons. The dysfunctional nephron exhibits a lower glomerular capillary pressure that is induced by an unbalance between afferent and efferent arteriole. Therefore, we tested the hypothesis that oxidative stress induced by CKD differentially impairs the structure or function of efferent versus afferent arterioles. METHODS: C57BL/6 mice received sham operations (sham) or 5/6 nephrectomy (RRM) and 3 months of normal or high salt diet or tempol...
July 25, 2016: Acta Physiologica
https://www.readbyqxmd.com/read/27412799/taurine-and-magnesium-supplementation-enhances-the-function-of-endothelial-progenitor-cells-through-antioxidation-in-healthy-men-and-spontaneously-hypertensive-rats
#19
Mayumi Katakawa, Noboru Fukuda, Akiko Tsunemi, Mari Mori, Takashi Maruyama, Taro Matsumoto, Masanori Abe, Yukio Yamori
Endothelial damage is repaired by endothelial progenitor cells (EPCs), which are pivotal in preventing cardiovascular diseases and prolonging lifespan. The WHO Cardiovascular Diseases and Alimentary Comparison Study demonstrated that dietary taurine and magnesium (Mg) intake suppresses cardiovascular diseases. We herein evaluate the effects of taurine and Mg supplementation on EPC function and oxidative stress in healthy men and spontaneously hypertensive rats (SHRs). Healthy men received taurine (3 g per day) or Mg (340 mg per day) for 2 weeks...
July 14, 2016: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/27373799/acute-kidney-injury-following-cardiac-surgery-current-understanding-and-future-directions
#20
REVIEW
Jason B O'Neal, Andrew D Shaw, Frederic T Billings
Acute kidney injury (AKI) complicates recovery from cardiac surgery in up to 30 % of patients, injures and impairs the function of the brain, lungs, and gut, and places patients at a 5-fold increased risk of death during hospitalization. Renal ischemia, reperfusion, inflammation, hemolysis, oxidative stress, cholesterol emboli, and toxins contribute to the development and progression of AKI. Preventive strategies are limited, but current evidence supports maintenance of renal perfusion and intravascular volume while avoiding venous congestion, administration of balanced salt as opposed to high-chloride intravenous fluids, and the avoidance or limitation of cardiopulmonary bypass exposure...
July 4, 2016: Critical Care: the Official Journal of the Critical Care Forum
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