keyword
MENU ▼
Read by QxMD icon Read
search

Salt sensitive hypertension

keyword
https://www.readbyqxmd.com/read/28225041/pvn-blockade-of-p44-42-mapk-pathway-attenuates-salt-induced-hypertension-through-modulating-neurotransmitters-and-attenuating-oxidative-stress
#1
Hong-Li Gao, Xiao-Jing Yu, Kai-Li Liu, Xiao-Lian Shi, Jie Qi, Yan-Mei Chen, Yan Zhang, Juan Bai, Qiu-Yue Yi, Zhi-Peng Feng, Wen-Sheng Chen, Wei Cui, Jin-Jun Liu, Guo-Qing Zhu, Yu-Ming Kang
The imbalance of neurotransmitters and excessive oxidative stress responses contribute to the pathogenesis of hypertension. In this study, we determined whether blockade of p44/42 MAPK pathway in the hypothalamic paraventricular nucleus (PVN) ameliorates the development of hypertension through modulating neurotransmitters and attenuating oxidative stress. Dahl salt-sensitive (S) rats received a high-salt diet (HS, 8% NaCl) or a normal-salt diet (NS, 0.3% NaCl) for 6 weeks and were treated with bilateral PVN infusion of PD-98059 (0...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28220030/novel-paradigms-of-salt-and-hypertension
#2
Wenguang Feng, Louis J Dell'Italia, Paul W Sanders
Salt resistance/sensitivity refers specifically to the effect of dietary sodium chloride (salt) intake on BP. Increased dietary salt intake promotes an early and uniform expansion of extracellular fluid volume and increased cardiac output. To compensate for these hemodynamic changes and maintain constant BP in salt resistance, renal and peripheral vascular resistance falls and is associated with an increase in production of nitric oxide. In contrast, the decline in peripheral vascular resistance and the increase in nitric oxide are impaired or absent in salt sensitivity, promoting an increase in BP in these individuals...
February 20, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28214884/transient-receptor-potential-melastatin-4-trpm4-contributes-to-high-salt-diet-mediated-early-stage-endothelial-injury
#3
Xiao-Qing Ding, Tao Ban, Zeng-Yan Liu, Jie Lou, Liang-Liang Tang, Jia-Xin Wang, Wen-Feng Chu, Dan Zhao, Bin-Lin Song, Zhi-Ren Zhang
BACKGROUND/AIMS: The present study investigated whether the transient receptor potential melastatin 4 (TRPM4) channel plays a role in high salt diet (HSD)-induced endothelial injuries. METHODS: Western blotting and immunofluorescence were used to examine TRPM4 expression in the mesenteric endothelium of Dahl salt-sensitive (SS) rats fed a HSD. The MTT, TUNEL, and transwell assays were used to evaluate the cell viability, cell apoptosis, and cell migration, respectively, of human umbilical vein endothelial cells (HUVECs)...
February 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28197417/basal-and-activated-calcium-sensitization-mediated-by-rhoa-rho-kinase-pathway-in-rats-with-genetic-and-salt-hypertension
#4
Michal Behuliak, Michal Bencze, Ivana Vaněčková, Jaroslav Kuneš, Josef Zicha
Calcium sensitization mediated by RhoA/Rho kinase pathway can be evaluated either in the absence (basal calcium sensitization) or in the presence of endogenous vasoconstrictor systems (activated calcium sensitization). Our aim was to compare basal and activated calcium sensitization in three forms of experimental hypertension with increased sympathetic tone and enhanced calcium entry-spontaneously hypertensive rats (SHR), heterozygous Ren-2 transgenic rats (TGR), and salt hypertensive Dahl rats. Activated calcium sensitization was determined as blood pressure reduction induced by acute administration of Rho kinase inhibitor fasudil in conscious rats with intact sympathetic nervous system (SNS) and renin-angiotensin system (RAS)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28193784/impaired-myogenic-response-of-the-afferent-arteriole-contributes-to-the-increased-susceptibility-to-renal-disease-in-milan-normotensive-rats
#5
Ying Ge, Fan Fan, Sean P Didion, Richard J Roman
Milan normotensive (MNS) rats are more susceptible to the development of renal disease than Milan hypertensive (MHS) rats, but the genes and pathways involved are unknown. This study compared the myogenic response of isolated perfused afferent arterioles (Af-Art) and autoregulation of renal blood flow (RBF) and glomerular capillary pressure (Pgc) in 6-9-week-old MNS and MHS rats. The diameter of the Af-Art of MHS rats decreased significantly from 14.3 ± 0.5 to 11.5 ± 0.6 μm when perfusion pressure was elevated from 60 to 120 mmHg...
February 2017: Physiological Reports
https://www.readbyqxmd.com/read/28190873/the-role-of-uric-acid-in-hypertension-of-adolescents-prehypertension-and-salt-sensitivity-of-blood-pressure
#6
Yang Wang, Jia-Wen Hu, Yong-Bo Lv, Chao Chu, Ke-Ke Wang, Wen-Ling Zheng, Yu-Meng Cao, Zu-Yi Yuan, Jian-Jun Mu
Uric acid is the end product of purine metabolism. Metabolic disorders of uric acid are associated with many disease states. Substantial evidence suggests the possible role of uric acid as a mediator of high blood pressure. Elevated uric acid is closely associated with new onset essential hypertension in adolescents and prehypertension; and urate-lowering agents can significantly improve these early stages of hypertension. Uric acid also influences salt sensitivity of blood pressure through two phases. Local renin-angiotensin-aldosterone system activation initiates renal damage, arteriolopathy, and endothelium dysfunction, which is followed by the dysregulation of sodium homeostasis, thereby leading to increased salt sensitivity...
February 13, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28118075/dietary-spermidine-for-lowering-high-blood-pressure
#7
Tobias Eisenberg, Mahmoud Abdellatif, Andreas Zimmermann, Sabrina Schroeder, Tobias Pendl, Alexandra Harger, Slaven Stekovic, Julia Schipke, Christoph Magnes, Albrecht Schmidt, Christoph Ruckenstuhl, Christopher Dammbrueck, Angelina S Gross, Viktoria Herbst, Didac Carmona-Gutierrez, Federico Pietrocola, Thomas R Pieber, Stephan J Sigrist, Wolfgang A Linke, Christian Mühlfeld, Junichi Sadoshima, Joern Dengjel, Stefan Kiechl, Guido Kroemer, Simon Sedej, Frank Madeo
Loss of cardiac macroautophagy/autophagy impairs heart function, and evidence accumulates that an increased autophagic flux may protect against cardiovascular disease. We therefore tested the protective capacity of the natural autophagy inducer spermidine in animal models of aging and hypertension, which both represent major risk factors for the development of cardiovascular disease. Dietary spermidine elicits cardioprotective effects in aged mice through enhancing cardiac autophagy and mitophagy. In salt-sensitive rats, spermidine supplementation also delays the development of hypertensive heart disease, coinciding with reduced arterial blood pressure...
January 24, 2017: Autophagy
https://www.readbyqxmd.com/read/28069662/endoplasmic-reticulum-stress-inhibition-limits-the-progression-of-chronic-kidney-disease-in-the-dahl-salt-sensitive-rat
#8
Victoria Yum, Rachel E Carlisle, Chao Lu, Elise Brimble, Jasmine Chahal, Chandak Upagupta, Kjetil Ask, Jeffrey G Dickhout
Proteinuria is one of the primary risk factors for the progression of chronic kidney disease (CKD) and has been implicated in the induction of endoplasmic reticulum (ER) stress. We hypothesized that the suppression of ER stress with a low molecular weight chemical chaperone, 4-phenylbutyric acid (4-PBA), would reduce the severity of CKD and proteinuria in the Dahl salt-sensitive (SS) hypertensive rat. To induce hypertension and CKD, 12-wk-old male rats were placed on a high-salt (HS) diet for 4 wk with or without 4-PBA treatment...
January 1, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28067240/cd8-t-cells-stimulate-na-cl-co-transporter-ncc-in-distal-convoluted-tubules-leading-to-salt-sensitive-hypertension
#9
Yunmeng Liu, Tonya M Rafferty, Sung W Rhee, Jessica S Webber, Li Song, Benjamin Ko, Robert S Hoover, Beixiang He, Shengyu Mu
Recent studies suggest a role for T lymphocytes in hypertension. However, whether T cells contribute to renal sodium retention and salt-sensitive hypertension is unknown. Here we demonstrate that T cells infiltrate into the kidney of salt-sensitive hypertensive animals. In particular, CD8(+) T cells directly contact the distal convoluted tubule (DCT) in the kidneys of DOCA-salt mice and CD8(+) T cell-injected mice, leading to up-regulation of the Na-Cl co-transporter NCC, p-NCC and the development of salt-sensitive hypertension...
January 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28062568/renal-collectrin-protects-against-salt-sensitive-hypertension-and-is-downregulated-by-angiotensin-ii
#10
Pei-Lun Chu, Joseph C Gigliotti, Sylvia Cechova, Gabor Bodonyi-Kovacs, Fang Chan, Donna Lee Ralph, Nancy Howell, Kambiz Kalantari, Alexander L Klibanov, Robert M Carey, Alicia A McDonough, Thu H Le
Collectrin, encoded by the Tmem27 gene, is a transmembrane glycoprotein with approximately 50% homology with angiotensin converting enzyme 2, but without a catalytic domain. Collectrin is most abundantly expressed in the kidney proximal tubule and collecting duct epithelia, where it has an important role in amino acid transport. Collectrin is also expressed in endothelial cells throughout the vasculature, where it regulates L-arginine uptake. We previously reported that global deletion of collectrin leads to endothelial dysfunction, augmented salt sensitivity, and hypertension...
January 6, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28062494/cellular-repressor-of-e1a-stimulated-genes-is-a-critical-determinant-of-vascular-remodeling-in-response-to-angiotensin-ii
#11
Li Yang, Liu Yanxia, Tian Xiaoxiang, Zhang Yan, Song Haixu, Liu Meili, Zhang Xiaolin, Liu Haiwei, Zhang Jian, Zhang Quanyu, Liu Dan, Peng Chengfei, Yan Chenghui, Han Yaling
OBJECTIVE: Cellular repressor of E1A-stimulated genes (CREG) is a lysosomal glycoprotein implicated in maintaining vascular homeostasis. Here, we have hypothesized that CREG is a critical target of intervention for the prevention of hypertensive vascular remodeling. APPROACH AND RESULTS: CREG gene expression was significantly decreased accompanied by an upregulated expression of angiotensin II (Ang II) in remodeled vascular tissues of high salt-induced Dahl salt-sensitive rats and Ang II-induced mice...
January 5, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28052878/high-frequency-of-variants-of-candidate-genes-in-black-africans-with-low-renin-resistant-hypertension
#12
Erika S Jones, J David Spence, Adam D Mcintyre, Justus Nondi, Kennedy Gogo, Adeseye Akintunde, Daniel G Hackam, Brian L Rayner
OBJECTIVES: Black subjects tend to retain salt and water, be more sensitive to aldosterone, and have suppression of plasma renin activity. Variants of the renal sodium channel (ENaC, SCNN1B) account for approximately 6% of resistant hypertension (RHT) in Blacks; other candidate genes may be important. METHODS: Six candidate genes associated with low renin-resistant hypertension were sequenced in Black Africans from clinics in Kenya and South Africa. CYP11B2 was sequenced if the aldosterone level was high (primary aldosteronism phenotype); SCNN1B, NEDD4L, GRK4, UMOD, and NPPA genes were sequenced if the aldosterone level was low (Liddle phenotype)...
January 4, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28003191/calcineurin-inhibitor-cyclosporine-a-activates-renal-na-k-cl-cotransporters-via-local-and-systemic-mechanisms
#13
Katharina Ilse Blankenstein, Aljona Borschewski, Robert Labes, Alexander Paliege, Christin Boldt, James A McCormick, David H Ellison, Michael Bader, Sebastian Bachmann, Kerim Mutig
Calcineurin dephosphorylates NFAT transcription factors, thereby facilitating T-cell mediated immune responses. Calcineurin inhibitors are instrumental for immunosuppression after organ transplantation, but may cause side effects including hypertension and electrolyte disorders. Kidneys were recently shown to display activation of the furosemide-sensitive Na-K-2Cl cotransporter (NKCC2) of the thick ascending limb and the thiazide-sensitive Na-Cl cotransporter (NCC) of the distal convoluted tubule upon calcineurin inhibition using cyclosporin A (CsA)...
December 21, 2016: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28003189/involvement-of-enac-in-the-development-of-salt-sensitive-hypertension
#14
Tengis S Pavlov, Alexander Staruschenko
Salt-sensitive hypertension is associated with renal and vascular dysfunctions which lead to impaired fluid excretion, increased cardiac output and total peripheral resistance. It is commonly accepted that increased renal sodium handling and plasma volume expansion are necessary factors for the development of salt-induced hypertension. The epithelial sodium channel (ENaC) is a trimeric ion channel expressed in the distal nephron which plays a critical role in the regulation of sodium reabsorption in both normal and pathological conditions...
December 21, 2016: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/27993957/activation-of-renal-pro-renin-receptor-contributes-to-high-fructose-induced-salt-sensitivity
#15
Chuanming Xu, Aihua Lu, Xiaohan Lu, Linlin Zhang, Hui Fang, Li Zhou, Tianxin Yang
A high-fructose diet is shown to induce salt-sensitive hypertension, but the underlying mechanism largely remains unknown. The major goal of the present study was to test the role of renal (pro)renin receptor (PRR) in this model. In Sprague-Dawley rats, high-fructose intake increased renal expression of full-length PRR, which were attenuated by allopurinol. High-fructose intake also upregulated renal mRNA and protein expression of sodium/hydrogen exchanger 3 and Na/K/2Cl cotransporter, as well as in vivo Na/K/2Cl cotransporter activity, all of which were nearly completely blocked by a PRR decoy inhibitor PRO20 or allopurinol treatment...
December 19, 2016: Hypertension
https://www.readbyqxmd.com/read/27988209/renal-tubular-angiotensin-converting-enzyme-is%C3%A2-responsible-for-nitro-l-arginine-methyl-ester%C3%A2-l-name-induced-salt-sensitivity
#16
Jorge F Giani, Masahiro Eriguchi, Ellen A Bernstein, Makoto Katsumata, Xiao Z Shen, Liang Li, Alicia A McDonough, Sebastien Fuchs, Kenneth E Bernstein, Romer A Gonzalez-Villalobos
Renal parenchymal injury predisposes to salt-sensitive hypertension, but how this occurs is not known. Here we tested whether renal tubular angiotensin converting enzyme (ACE), the main site of kidney ACE expression, is central to the development of salt sensitivity in this setting. Two mouse models were used: it-ACE mice in which ACE expression is selectively eliminated from renal tubular epithelial cells; and ACE 3/9 mice, a compound heterozygous mouse model that makes ACE only in renal tubular epithelium from the ACE 9 allele, and in liver hepatocytes from the ACE 3 allele...
December 14, 2016: Kidney International
https://www.readbyqxmd.com/read/27922176/dipeptidyl-peptidase-4-inhibitor-sitagliptin-reduces-inflammation-fibrosis-and-preserves-diastolic-function-in-a-rat-model-of-heart-failure-with-preserved-ejection-fraction
#17
Grazia Esposito, Donato Cappetta, Rosa Russo, Alessia Rivellino, Loreta Pia Ciuffreda, Fiorentina Roviezzo, Elena Piegari, L Liberato Berrino, Francesco Rossi, Antonella De Angelis, Konrad Urbanek
BACKGROUND AND PURPOSE: Heart failure with preserved ejection fraction (HFpEF) is a systemic syndrome driven by co-morbidities and its pathophysiology is poorly understood. Several studies suggesting that dipeptidyl peptidase 4 (DPP4) might be involved in the pathophysiology of heart failure prompted experimental and clinical investigations of DPP4 inhibitors on cardiovascular system. The aim of our study was to determine whether DPP4 inhibitor sitagliptin (SITA) affects the progression of HFpEF independently from the effects on glycaemia...
December 6, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27920129/chronic-inhibition-of-renal-outer-medullary-potassium-channel-not-only-prevented-but-also-reversed-development-of-hypertension-and-end-organ-damage-in-dahl-salt-sensitive-rats
#18
Xiaoyan Zhou, Michael J Forrest, Wanda Sharif-Rodriguez, Gail Forrest, Daphne Szeto, Olga Urosevic-Price, Yonghua Zhu, Andra S Stevenson, Yuchen Zhou, Sloan Stribling, Maya Dajee, Shawn P Walsh, Alexander Pasternak, Kathleen A Sullivan
The renal outer medullary potassium (ROMK) channel mediates potassium recycling and facilitates sodium reabsorption through the Na(+)/K(+)/2Cl(-) cotransporter in the loop of Henle and potassium secretion at the cortical collecting duct. Evidence from the phenotype of humans and rodents with functional ROMK deficiency supports the contention that selective ROMK inhibitors (ROMKi) will represent a novel diuretic with potential of therapeutic benefit for hypertension. ROMKi have recently been synthesized by Merck & Co, Inc...
December 5, 2016: Hypertension
https://www.readbyqxmd.com/read/27906747/update-on-angiotensin-at2-receptors
#19
Robert M Carey
PURPOSE OF REVIEW: This review updates major new findings and concepts introduced during the past year on the role of angiotensin II (Ang II) subtype 2 receptors (AT2Rs) in the control of blood pressure and renal function. RECENT FINDINGS: AT2R activation prevents sodium (Na) retention and lowers blood pressure in the Ang II infusion model of experimental hypertension and prevents salt-sensitive hypertension in the obese Zucker rat model of obesity and the metabolic syndrome...
March 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/27903222/sustained-elabela-gene-therapy-in-high-salt-induced-hypertensive-rats
#20
Claire A Schreiber, Sara J Holditch, Alex Generous, Yasuhiro Ikeda
BACKGROUND: Elabela (ELA) is a recently identified apelin receptor agonist essential for cardiac development, but its biology and therapeutic potential are unclear. In humans ELA transcripts are detected in embryonic stem cells, induced pluripotent stem cells, kidney, heart and blood vessels. ELA through the apelin receptor promotes angiogenesis in vitro, relaxes murine aortic blood vessels and attenuates high blood pressure in vivo. The apelin receptor when bound to its original ligand, apelin, exerts peripheral vasodilatory and positive inotropic effects, conferring cardioprotection in vivo...
November 21, 2016: Current Gene Therapy
keyword
keyword
16572
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"