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ET-1 AND blood pressure

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https://www.readbyqxmd.com/read/27917264/systemic-to-pulmonary-artery-pressure-ratio-as-a-predictor-of-patient-outcome-following-liver-transplantation
#1
Annette Rebel, Dung Nguyen, Brooke Bauer, Paul A Sloan, Amy DiLorenzo, Zaki-Udin Hassan
AIM: To assess the value of the mean systemic-to-pulmonary artery pressure (MAP/mPAP) ratio for predicting outcomes following orthotopic liver transplant (OLT). METHODS: A retrospective data analysis was performed and data (mean arterial blood pressure, mean pulmonary artery pressure and Cardiac Index) were collected at several points during OLT. Outcomes evaluated were duration of postoperative endotracheal intubation [ET; minutes after intensive care unit (ICU) arrival], length of ICU stay, total hospitalization and frequency of immediate postoperative complications...
November 18, 2016: World Journal of Hepatology
https://www.readbyqxmd.com/read/27914527/prophylactic-effects-of-alkaloids-from-ba-lotus-seeds-on-l-nna-induced-hypertension-in-mice
#2
Peng Sun, Kai Zhu, Cun Wang, Wei-Wei Liu, De-Guang Peng, Xin Zhao
Alkaloids from Ba lotus seeds (ABLS) are a kind of important functional compounds in lotus seeds. The present study was designed to determine its hypertension prophylactic effects in the L-NNA-induced mouse hypertension model. The mice were treated with ABLS, the serum and tissues levels of NO, MDA, ET-1, VEGF, and CGRP were determined using the experimental kits, the mRNA levels of various genes in the heart muscle and blood vessel tissues were further determined by RT-PCR assay. ABLS could reduce the systolic blood pressure (SBP), mean blood pressure (MBP), and diastolic blood pressure (DBP), compared to that of the model control group...
November 2016: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/27903510/vitamin-d-supplementation-reduces-some-at1-aa-induced-downstream-targets-implicated-in-preeclampsia-including-hypertension
#3
Jessica L Faulkner, Lorena M Amaral, Denise C Cornelius, Mark W Cunningham, Tarek Ibrahim, Autumn Heep, Nathan Campbell, Nathan Usry, Kedra Wallace, Florian Herse, Ralf Dechend, Babbette D LaMarca
Autoantibodies to the angiotensin II (ANGII) type I receptor (AT1-AA) are associated with preeclampsia (PE). We found that Vitamin D supplementation reduced AT1-AA and blood pressure (MAP) in the RUPP rat model of PE. However, it was undetermined if the decrease in AT1-AA was the mechanism whereby Vitamin D lowered MAP or if it was through factors downstream of AT1-AA. Uterine artery resistance index, placental ET-1 and sFlt-1 are increased with AT1-AA induced hypertension and considered markers of PE in pregnant women...
November 30, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27894808/protective-effect-of-betulinic-acid-on-early-atherosclerosis-in-diabetic-apolipoprotein-e-gene-knockout-mice
#4
Jung Joo Yoon, Yun Jung Lee, Byung Hyuk Han, Eun Sik Choi, Min Chul Kho, Ji Hun Park, You Mee Ahn, Hye Yoom Kim, Dae Gill Kang, Ho Sub Lee
Atherosclerosis, a chronic and progressive disease, is a leading cause of endothelial dysfunction, diabetes mellitus, hypertension, and hypercholesterolemia. Betulinic acid (BA), a pentacyclic triterpene, has been reported to have a variety of biological effects, including anti-inflammatory and immunomodulatory properties. This study was designed to determine whether BA could prevent atherosclerosis in diabetic apolipoprotein-E gene knockout (ApoE KO) mice. The mice were treated with BA for 12 weeks to examine its beneficial effects on atherosclerosis in ApoE KO mice...
November 25, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27884622/exercise-modulates-the-aortic-renin-angiotensin-system-independently-of-estrogen-therapy-in-ovariectomized-hypertensive-rats
#5
Patrick W Endlich, Erick R G Claudio, Leandro C F Lima, Rogério F Ribeiro Júnior, Antonio A B Peluso, Ivanita Stefanon, Nazaré S Bissoli, Virginia S Lemos, Robson A S Dos Santos, Glaucia R de Abreu
The renin-angiotensin-system is an important component of cardiovascular control and is up-regulated under various conditions, including hypertension and menopause. The aim of this study was to evaluate the effects of swimming training and estrogen therapy (ET) on angiotensin-II (ANG II)-induced vasoconstriction and angiotensin-(1-7) [ANG-(1-7)]-induced vasorelaxation in aortic rings from ovariectomized spontaneously hypertensive rats. Animals were divided into Sham (SH), Ovariectomized (OVX), Ovariectomized treated with E2 (OE2), Ovariectomized plus swimming (OSW) and Ovariectomized treated with E2 plus swimming (OE2+SW) groups...
November 21, 2016: Peptides
https://www.readbyqxmd.com/read/27866193/mixed-aqueous-extract-of-salvia-miltiorrhiza-reduces-blood-pressure-through-inhibition-of-vascular-remodelling-and-oxidative-stress-in-spontaneously-hypertensive-rats
#6
Jing Zhang, Sheng Jun An, Jun Qiu Fu, Pei Liu, Tie Mei Shao, Manli Li, Xue Li, Zhan Jiao, Xi Qing Chai
BACKGROUND/AIMS: Salvia miltiorrhiza (SM) contains four major aqueous active ingredients, which have been isolated, purified and identified as danshensu (DSS), salvianolic acid A (Sal-A), salvianolic acid B (Sal-B) and protocatechuic aldehyde (PAL), totally abbreviated as SABP. Although SM is often used to treat various cardiovascular diseases in traditional Chinese medicine, the efficacy and function of optimal compatibility ratio of SM's active ingredients (SABP) in the prevention and treatment of cardiovascular diseases remain uncertain...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27860068/effect-of-osa-on-hypoxic-and-inflammatory-markers-during-cpap-withdrawal-further-evidence-from-three-randomized-control-trials
#7
Chris D Turnbull, Valentina A Rossi, Peter Santer, Esther I Schwarz, John R Stradling, Nayia Petousi, Malcolm Kohler
BACKGROUND AND OBJECTIVE: Obstructive sleep apnoea (OSA) is associated with cardiovascular disease. Intermittent hypoxia, endothelial dysfunction and adipose tissue-mediated inflammation have all been linked to cardiovascular disease in OSA. We therefore explored the effect of OSA on relevant associated blood markers: adrenomedullin (ADM), endocan, endothelin-1 (ET-1), resistin and vascular endothelial growth factor (VEGF). METHODS: Patients with OSA, established on and compliant with continuous positive airways pressure (CPAP) therapy for >1 year were included from three randomized controlled trials, conducted at two centres...
November 18, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27832660/global-overexpression-of-et-1-decreases-blood-pressure-a-systematic-review-and-meta-analysis-of-et-1-transgenic-mice
#8
Yong Ping Lu, Oleg Tsuprykov, Nicolas Vignon-Zellweger, Susi Heiden, Berthold Hocher
BACKGROUND/AIMS: ET-1 has independent effects on blood pressure regulation in vivo, it is involved in tubular water and salt excretion, promotes constriction of smooth muscle cells, modulates sympathetic nerve activity, and activates the liberation of nitric oxide. To determine the net effect of these partially counteracting mechanisms on blood pressure, a systematic meta-analysis was performed. METHODS: Based on the principles of Cochrane systematic reviews, we searched in major literature databases - MEDLINE (PubMed), Embase, Google Scholar, and the China Biological Medicine Database (CBM-disc) - for articles relevant to the topic of the blood pressure phenotype of endothelin-1 transgenic (ET-1+/+) mice from January 1, 1988 to March 31, 2016...
November 11, 2016: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/27810862/dual-endothelin-a-endothelin-b-receptor-blockade-and-cardiac-remodeling-in-heart-failure-with-preserved-ejection-fraction
#9
Maria Valero-Munoz, Shanpeng Li, Richard M Wilson, Batbold Boldbaatar, Marc Iglarz, Flora Sam
BACKGROUND: Despite the increasing prevalence of heart failure with preserved ejection fraction (HFpEF) in humans, there remains no evidence-based therapies for HFpEF. Endothelin-1 (ET-1) antagonists are a possibility because elevated ET-1 levels are associated with adverse cardiovascular effects, such as arterial and pulmonary vasoconstriction, impaired left ventricular (LV) relaxation, and stimulation of LV hypertrophy. LV hypertrophy is a common phenotype in HFpEF, particularly when associated with hypertension...
November 2016: Circulation. Heart Failure
https://www.readbyqxmd.com/read/27787379/elevated-plasma-migration-inhibitory-factor-in-hypertension-hyperlipidemia-patients-correlates-with-impaired-endothelial-function
#10
Boda Zhou, Chuan Ren, Lingyun Zu, Lemin Zheng, Lijun Guo, Wei Gao
Migration inhibitory factor (MIF) has been shown to be critical in the pathology of early artherosclerosis; this article aim to investigate the plasma levels of MIF in hypertension plus hyperlipidemia patients.A total of 39 hypertension plus hyperlipidemia patients without any previous treatment were enrolled (HTN-HLP). Twenty-five healthy subjects were enrolled as the healthy control group (HEALTHY). Plasma MIF was measured by ELISA; laboratory and clinical characteristics were analyzed. HUVECs were treated with pooled plasma from HTN-HLP and HEALTHY groups, and the protein levels of adhesion molecules VCAM-1 and ICAM-1 were determined by ELISA...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27779565/combined-exercise-reduces-arterial-stiffness-blood-pressure-and-blood-markers-for-cardiovascular-risk-in-postmenopausal-women-with-hypertension
#11
Won-Mok Son, Ki-Dong Sung, Jae-Min Cho, Song-Young Park
OBJECTIVE: Postmenopausal women exhibit elevated brachial-ankle pulse wave velocity (baPWV), an indicator of arterial stiffness, which is associated with an increased risk of cardiovascular events and mortality. The purpose of this study is to examine the impact of combined resistance and aerobic exercise training on baPWV, blood pressure (BP), and cardiovascular fitness in postmenopausal women with stage 1 hypertension. METHODS: Twenty postmenopausal women (age, 75 ± 2 y; systolic BP, 152 ± 2 mm Hg, diastolic BP, 95 ± 3 mm Hg) were randomly assigned to a "no-exercise" (CON, n = 10) or combined exercise (EX, n = 10) group...
October 24, 2016: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/27777505/plasma-endothelin-1-and-single-nucleotide-polymorphisms-of-endothelin-1-and-endothelin-type-a-receptor-genes-as-risk-factors-for-normal-tension-glaucoma
#12
Ewa Kosior-Jarecka, Dominika Wróbel-Dudzińska, Urszula Łukasik, Tin Aung, Chiea Chuen Khor, Janusz Kocki, Tomasz Żarnowski
PURPOSE: The purpose of this study was to determine whether four single nucleotide polymorphisms (SNPs) of endothelin and endothelin receptor type A genes can constitute a risk factor for normal tension glaucoma (NTG) and high tension glaucoma (HTG). METHODS: The study included 160 patients with NTG, 124 patients with HTG, and 165 healthy controls. To analyze the frequency of polymorphic variants of the endothelin EDN gene (K198N) and the endothelin receptor type A gene EDN RA (C1222T, C70G, G231A), DNA was isolated from peripheral blood, and SNP genotyping was performed using the real-time PCR (RT-PCR) method...
2016: Molecular Vision
https://www.readbyqxmd.com/read/27777044/renin-angiotensin-aldosterone-system-inhibitors-in-hypertension-is-there-evidence-for-benefit-independent-of-blood-pressure-reduction
#13
REVIEW
Chirag Bavishi, Sripal Bangalore, Franz H Messerli
The renin-angiotensin-aldosterone system (RAAS) plays a pivotal role in the pathogenesis of hypertension (HTN). Angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin II receptor blockers (ARBs) are first line anti-HTN drug classes that are potent, effective and largely safe. Direct renin inhibitors (DRIs) have shown similar blood pressure (BP) reduction but more side effects. The efficacy of ACEIs and ARBs (for cardiovascular, cerebrovascular and renal protection) has been promoted to extend beyond what could be explained by BP reduction alone...
October 21, 2016: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/27775420/the-role-of-ppargamma-in-cardiovascular-diseases
#14
M Kvandová, M Majzúnová, I Dovinová
The peroxisome proliferator-activated receptors (PPAR) belong to the nuclear superfamily of ligand-activated transcription factors. PPARgamma acts as a nutrient sensor that regulates several homeostatic functions. Its disruption can lead to vascular pathologies, disorders of fatty acid/lipid metabolism and insulin resistance. PPARgamma can modulate several signaling pathways connected with blood pressure regulation. Firstly, it affects the insulin signaling pathway and endothelial dysfunction by modulation of expression and/or phosphorylation of signaling molecules through the PI3K/Akt/eNOS or MAPK/ET-1 pathways...
October 24, 2016: Physiological Research
https://www.readbyqxmd.com/read/27773597/the-beneficial-place-for-the-treatment-of-ruptured-abdominal-aortic-aneurysms
#15
Jiehua Qiu, Weimin Zhou, Wei Zhou, Xinhua Tang, Qingwen Yuan, Jixin Xiong
OBJECTIVE: To study the beneficial place for the treatment of ruptured abdominal aortic aneurysms (RAAAs). METHOD: A retrospective chart review of consecutive RAAA patients was performed. Patients were divided into two groups: direct group and transfer group. We retrospectively reviewed patients' hospital charts and recorded various clinical factors apparent on presentation. The primary consequence was mortality during hospitalization, and some other parameters such as duration of intensive care unit (ICU)...
October 20, 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27766986/blood-pressure-in-warmblood-horses-before-and-during-a-euglycemic-hyperinsulinemic-clamp
#16
Katarina E A Nostell, Sanna S Lindåse, Johan T Bröjer
BACKGROUND: Insulin resistance (IR) in humans is related to hypertension and impaired vasodilation. Insulin administration has been shown to lower blood pressure both in insulin resistant as well as in insulin sensitive individuals. The aim of the study was to investigate the association between insulin sensitivity and alterations in blood pressure in healthy horses before and after a euglycemic-hyperinsulinemic clamp (EHC). A 3-h EHC was performed in 13 healthy horses (11 mares, 2 geldings)...
October 20, 2016: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/27754289/br-08-1-high-sodium-intake-reduction-in-diabetes-with-hypertension
#17
Zhiming Zhu
Management of hypertension in diabetes is critical for reducing cardiovascular mortality and morbidity. Dietary approaches for controlling high blood pressure have historically focused on sodium. Thus, many guidelines recommend that patients with type 2 diabetes reduce high sodium intake. Nonetheless, the potential benefits of sodium reduction are debatable. The kidney has a crucial role in glucose filtration and reabsorption in addition to its regulation of fluid and electrolyte homeostasis. A key factor linking sodium uptake and glucose transport is the sodium-glucose cotransporter 2 (SGLT2) in renal proximal tubular cells...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754175/sy-15-1-mechanism-of-endothelin-1-regulation-in-hypertension-the-role-of-endothelin-type-a-receptors
#18
Ernesto Schiffrin
For many years we have studied models of hypertension in which endothelin-1 (ET-1) is overexpressed. These include DOCA-salt hypertensive rats, Dahl-salt sensitive rats, and stroke prone SHR, in all of which ET-1-mediated mechanisms play a role in blood pressure elevation and vascular injury. In humans we demonstrated overexpression of ET-1 in the endothelium of small arteries from stage 2 hypertensive patients. We have also produced a mouse that overexpresses human ET-1 in the endothelium using a Tie-2 promoter, which exhibited increased oxidative stress and inflammation, hypertrophic remodeling and endothelial dysfunction of small arteries but only slight blood pressure elevation...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754101/os-21-06-three-month-exposure-to-endothelin-1-overexpression-increases-blood-pressure-and-causes-small-artery-injury
#19
Pierre Paradis, Suellen C Coelho, Sofiane Ouerd, Júlio C Fraulob-Aquino, Stefan Offermanns, Ernesto L Schiffrin
OBJECTIVE: The mechanisms of blood pressure (BP) regulation by endothelin (ET)-1 produced by endothelial cells are complex and remain unclear. Recently, we developed a transgenic mouse with tamoxifen-inducible endothelium-restricted human ET-1 overexpression (ieET-1) using Cre/loxP technology. ieET-1 mice exhibited a BP increase after three weeks of induction in an ET type A receptor-dependent manner, in absence of evident vascular injury. It is unknown whether long-term exposure to ET-1 overexpression results in persistent BP elevation and vascular injury...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754018/js-ksh-jsh-chl-01-1-cardio-metabolic-risks-in-hypertension-are-we-different-from-western-societies
#20
Hiroshi Itoh
Many hypertension guidelines have been published mainly from Western countries to standardize the management of hypertension all over the world, however, the significance of hypertension, along with other cardio-metabolic risks, such as obesity, diabetes or dyslipidemia should differ among different races. This paper compares the relevance of hypertension, one of the most important cardio-metabolic risk factors, in Asian and Western societies.1) Low target level of blood pressure control for diabetic hypertensives in JapanIn the Japanese Society of Hypertension Guidelines for the management of Hypertension (JSH2014), the target of blood pressure (BP) control in hypertensive patients with diabetes was set as < 130/80 mmHg...
September 2016: Journal of Hypertension
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