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ET-1 AND blood pressure

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https://www.readbyqxmd.com/read/29214526/high-intensity-interval-training-lowers-blood-pressure-and-improves-apelin-and-nox-plasma-levels-in-older-treated-hypertensive-individuals
#1
Mohammad Reza Izadi, Alireza Ghardashi Afousi, Maryam Asvadi Fard, Mohammad Ali Babaee Bigi
Hypertension is the major risk factor for cardiovascular diseases and is one of the primary causes of morbidity and mortality worldwide. Apelin levels and NO bioavailability are impaired in older hypertensive patients. Exercise is an effective intervention for treating hypertension. Our purpose was to evaluate the effect of high-intensity interval training on blood pressure, apelin, and NOx plasma levels in older treated hypertensive individuals. Thirty treated hypertensive subjects (61.70 ± 5.78 years, 17 males, 13 females) were randomly divided into 6 weeks of high-intensity interval training (n = 15) and control (n = 15)...
December 6, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/29212810/heme-oxygenase-1-is-a-potent-inhibitor-of-placental-ischemia-mediated-endothelin-1-production-in-cultured-human-glomerular-endothelial-cells
#2
Bhavisha A Bakrania, Frank T Spradley, Simon C Satchell, David E Stec, John M Rimoldi, Rama S V Gadepalli, Joey P Granger
Preeclampsia is a pregnancy-specific disorder of maternal hypertension and reduced renal hemodynamics linked to reduced endothelial function. Placental ischemia is thought to be the culprit of this disease, as it causes the release of factors like tumor necrosis factor (TNF)-α that induce vascular endothelin-1 (ET-1) production. Interestingly, placental ischemia-induced hypertension in rats (reduced uterine perfusion pressure, RUPP model) is abolished by ETA receptor blockade, suggesting a critical role for ET-1...
December 6, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29212079/plasma-et-1-concentrations-are-elevated-in-pregnant-women-with-hypertension-meta-analysis-of-clinical-studies
#3
Yong-Ping Lu, Ahmed Abdallah Hasan, Shufei Zeng, Berthold Hocher
BACKGROUND/AIMS: The ET system might be involved in the pathogenesis of hypertensive disorders during pregnancy. The objective is to analyse the impact of ET-1 in hypertensive pregnant women by a strict meta-analysis of published human clinical studies. METHODS: Based on the principle of Cochrane systematic reviews, Cohort studies in PubMed (Medline), Google Scholar and China Biological Medicine Database (CBM-disc) designed to identify the role of endothelin-1 (ET-1) in the pathophysiology of gestational hypertension and preeclampsia were screened...
November 28, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29151418/-vegf165-transfected-endothelial-progenitor-cells-mediated-by-lentivirus-alleviated-ali-in-rats
#4
Zhaohui He, Huiwei He, Yuanhua Lu, Zhi Chen, Fanghua Xu, Rongsheng Wang, Chunli Yang
OBJECTIVE: To investigate the protective effects of vascular endothelial growth factor-165 (VEGF165) transfected the endothelial progenitor cells (EPCs) mediated by lentivirus on acute lung injury (ALI) in rats. METHODS: The mononuclear cells from the male Sprague-Dawley (SD) rats were isolated and cultured to get the EPCs for study. The lentivirus vector carrying the human VEGF165 gene was constructed. According to the random number table method, 90 male SD rats were divided into ALI model group, phosphate buffer solution (PBS) group, EPCs treatment group, none transfected EPCs treatment group and VEGF165 transfected EPCs treatment group, and the rats in each group were subdivided into 4, 12 and 48 hours subgroups, with 6 rats in each subgroup...
November 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29133362/three-month-endothelial-human-endothelin-1-overexpression-causes-blood-pressure-elevation-and-vascular-and-kidney-injury
#5
Suellen C Coelho, Olga Berillo, Antoine Caillon, Sofiane Ouerd, Júlio C Fraulob-Aquino, Tlili Barhoumi, Stefan Offermanns, Pierre Paradis, Ernesto L Schiffrin
Endothelium-derived endothelin (ET)-1 has been implicated in the development of hypertension and end-organ damage, but its exact role remains unclear. We have shown that tamoxifen-inducible endothelium-restricted human ET-1 overexpressing (ieET-1) mice exhibited blood pressure rise after a 3-week induction in an ET type A (ETA) receptor-dependent manner, in absence of vascular and renal injury. It is unknown whether long-term ET-1 overexpression results in sustained blood pressure elevation and vascular and renal injury...
November 13, 2017: Hypertension
https://www.readbyqxmd.com/read/29106302/comparative-study-on-the-effects-of-apple-peel-polyphenols-and-apple-flesh-polyphenols-on-cardiovascular-risk-factors-in-mice
#6
Jia Tian, Xiaoyan Wu, Moyang Zhang, Zhongyi Zhou, Yingfeng Liu
Apple consumption has been demonstrated to be associated with reduced risk of cardiovascular disease, and the beneficial effect is probably due to the polyphenols in apple. Here, we for the first time evaluated and compared the in vivo effects of the polyphenolic extracts of apple peels (PAP) and apple fleshes (PAF) on blood pressure, vascular endothelial function, lipid metabolism and insulin resistance. A high-fat and high-fructose (HFHF) diet was used to cause cardiovascular disorders in mice, with blood pressure, serum ET-1, TC, TG, LDL-C, glucose and insulin levels increased, and serum NO and HDL-C levels decreased...
November 6, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/29062873/the-effect-of-reducing-the-incidence-of-gastrointestinal-complications-in-patients-treated-with-aspirin-referred-to-imam-hospital-of-ahvaz-iran
#7
Abdalrahim Masjedizade, Mohammad Javad Mohammadi, Saeed Yazdankhah, Atefeh Roumi, Arman Shahriari, Sahar Geravandi
This research contains data which were obtained during the analysis of treated patients with aspirin who were referred to Imam Hospital (Imam H) of Ahvaz, Iran; and the effect of this type of treatment (Helicobacter pylori eradicate (HPE)) on reducing the incidence of gastrointestinal complications. Studies have shown that taking aspirin in patients with Helicobacter pylori infection is associated with a decreasing risk of gastrointestinal bleeding (O'connor et al., 2013) [1]. In this study, 165 patients with positive helicobacter pylori infection test were chosen among those who were referred to Imam H...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29061720/role-of-kidneys-in-sex-differences-in-angiotensin-ii-induced-hypertension
#8
Lei Wang, Ximing Wang, Helena Y Qu, Shan Jiang, Jie Zhang, Liying Fu, Jacentha Buggs, Bo Pang, Jin Wei, Ruisheng Liu
The significance of kidneys in regulation of sodium and water balance and hemodynamics has been demonstrated both in patients and animal models. In the present study, we tested our hypothesis that kidneys play an essential role in control of sex differences in angiotensin II (Ang II)-dependent hypertension. Kidney transplantations (KTXs) were performed between male (M) and female (F) C57BL/6 mice (donor→recipient: F→F, M→M, F→M, and M→F). Radiotelemetry transmitters were implanted for measurement of mean arterial pressure during the infusion of Ang II (600 ng·kg(-1)·min(-1))...
October 23, 2017: Hypertension
https://www.readbyqxmd.com/read/29051112/in-vivo-and-in-silico-evaluation-of-a-new-nitric-oxide-donor-s-s-dinitrosobucillamine
#9
Marie-Lynda Bouressam, Benjamin Meyer, Ariane Boudier, Igor Clarot, Pierre Leroy, Alessandro Genoni, Manuel Ruiz-Lopez, Philippe Giummelly, Patrick Liminana, Valérie Salgues, Mostafa Kouach, Caroline Perrin-Sarrado, Isabelle Lartaud, François Dupuis
PURPOSE: In a previous work, we have synthetized a new dinitrosothiol, i.e. S,S'-dinitrosobucillamine BUC(NO)2 combining S-nitroso-N-acetylpenicillamine (SNAP) and S-nitroso-N-acetylcysteine (NACNO) in its structure. When exposed to isolated aorta, we observed a 1.5-fold increase of (•)NO content and a more potent vasorelaxation (1 log higher pD2) compared to NACNO and SNAP alone or combined (Dahboul et al., 2014). In the present study, we analyzed the thermodynamics and kinetics for the release of (•)NO through computational modeling techniques and correlated it to plasma assays...
October 16, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/29018813/cardiovascular-consequences-of-repetitive-arousals-over-the-entire-sleep-duration
#10
Yanyan Wu, Rong Huang, Xu Zhong, Yi Xiao
OBJECTIVES: To explore the cardiovascular effects of nightlong repetitive arousals (RA). METHODS: Twenty healthy subjects participated in two consecutive sleep studies. The first one was free of intervention and the second study involved repetitive arousals induced by acoustical stimuli. Blood pressure, heart rate variability (HRV), arterial stiffness index (ASI), and serum markers including nitric oxide (NO), endothelin-1 (ET-1), C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and vascular endothelial growth factor (VEGF) were studied...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28977804/vascular-dynamics-and-peripheral-oxygen-uptake-in-obese-individuals-during-progressive-physical-exercise
#11
Amelia Brunani, Stefano Lanzi, Franco Codecasa, Mauro Cornacchia, Sabrina Maestrini, Davide Soranna, Antonella Zambon, Stefania Cattaldo, Paolo Fanari, Davide Malatesta, Alberto Salvadori
BACKGROUND: Obese men show higher O2 consumption than lean men during physical exercise, with a trend toward higher peripheral O2 extraction; this is probably due to their larger muscle mass. OBJECTIVES: The aim of this study was to examine this phenomenon by measuring 2 vasoactive substances, endothelin-1 (ET-1) and nitric oxide (NO), during a progressive submaximal exercise. METHODS: Seventeen obese (body mass index [BMI] 38.6) and 15 lean (BMI 22...
October 5, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28964767/the-angiotensin-converting-enzyme-ace-inhibitor-captopril-disrupts-the-motility-activation-of-sperm-from-the-silkworm-bombyx-mori
#12
Sumiharu Nagaoka, Saori Kawasaki, Hideki Kawasaki, Kaeko Kamei
Angiotensin I-converting enzyme (also known as peptidyl dicarboxypeptidase A, ACE, and EC 3.4.15.1), which is found in a wide range of organisms, cleaves C-terminal dipeptides from relatively short oligopeptides. Mammalian ACE plays an important role in the regulation of blood pressure. However, the precise physiological functions of insect ACE homologs have not been understood. As part of our effort to elucidate new physiological roles of insect ACE, we herein report a soluble ACE protein in male reproductive secretions from the silkmoth, Bombyx mori...
September 28, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28939023/vascular-protective-effects-of-aqueous-extracts-of-tribulus-terrestris-on-hypertensive-endothelial-injury
#13
Yue-Hua Jiang, Jin-Hao Guo, Sai Wu, Chuan-Hua Yang
Angiotensin II (Ang II) is involved in endothelium injury during the development of hypertension. Tribulus terrestris (TT) is used to treat hypertension, arteriosclerosis, and post-stroke syndrome in China. The present study aimed to determine the effects of aqueous TT extracts on endothelial injury in spontaneously hypertensive rats (SHRs) and its protective effects against Ang II-induced injury in human umbilical vein endothelial cells (HUVECs). SHRs were administered intragastrically with TT (17.2 or 8.6 g·kg(-1)·d(-1)) for 6 weeks, using valsartan (13...
August 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28922718/tanshinone-iia-protects-against-chronic-intermittent-hypoxia-induced-myocardial-injury-via-activating-the-endothelin-1-pathway
#14
Na Wang, Yue Chang, Lingling Chen, Ya-Jing Guo, Ya-Shuo Zhao, Qiu-Hong Guo, En-Sheng Ji
Tanshinone IIA (Tan IIA) may exert significant protective effects against heart oxidative stress damage in obstructive sleep apnoea (OSA) syndrome. Chronic intermittent hypoxia (CIH)-triggered left ventricular dysfunction is used in a rat model to mimic CIH in OSA patients. 48 rats were randomly divided into three groups: normal control (NC) group, CIH group and CIH+Tan IIA group with 16 rats in each group. At the end of experiment (day 21), the blood pressure, Plasma ET-1 and NO content, hemodynamic indexes, heart histology, myocardial apoptosis as well as the expression of eNOS, ET-1, ETA receptor and ETB receptor were compared among different groups...
November 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28857852/effects-of-high-flow-nasal-cannula-on-the-work-of-breathing-in-patients-recovering-from-acute-respiratory-failure
#15
Mathieu Delorme, Pierre-Alexandre Bouchard, Mathieu Simon, Serge Simard, François Lellouche
OBJECTIVES: High-flow nasal cannula is increasingly used in the management of respiratory failure. However, little is known about its impact on respiratory effort, which could explain part of the benefits in terms of comfort and efficiency. This study was designed to assess the effects of high-flow nasal cannula on indexes of respiratory effort (i.e., esophageal pressure variations, esophageal pressure-time product/min, and work of breathing/min) in adults. DESIGN: A randomized controlled crossover study was conducted in 12 patients with moderate respiratory distress (i...
December 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28827086/risk-factors-for-erectile-dysfunction-in-men-with-htlv-1
#16
Cassius José Vitor de Oliveira, José Abraão Carneiro Neto, Rosana C P Andrade, Paulo Novis Rocha, Edgar Marcelino de Carvalho Filho
BACKGROUND: Erectile dysfunction (ED) occurs in more than 50% of patients with human T-cell lymphotropic virus type 1 (HTLV-1) infection. In the general population, atherosclerosis is the main risk factor related to ED. AIM: To compare the contribution of neurologic disorders from HTLV-1 with that of atherosclerosis as risk factors for ED in men with HTLV-1. METHODS: In this cross-sectional study, men 18 to 70 years old with HTLV-1 were classified into one of two groups according to the presence or absence of ED...
October 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28822516/comparison-of-yoga-and-walking-exercise-on-cardiac-time-intervals-as-a-measure-of-cardiac-function-in-elderly-with-increased-pulse-pressure
#17
Satish Gurunathrao Patil, Shankargouda S Patil, Manjunatha R Aithala, Kusal Kanti Das
OBJECTIVE: Arterial aging along with increased blood pressure(BP) has become the major cardiovascular(CV) risk in elderly. The aim of the study was to compare the effects of yoga program and walking-exercise on cardiac function in elderly with increased pulse pressure (PP). METHODS: An open label, parallel-group randomized controlled study design was adopted. Elderly individuals aged ≥60 years with PP≥60mmHg were recruited for the study. Yoga (study) group (n=30) was assigned for yoga training and walking (exercise) group (n=30) for walking with loosening practices for one hour in the morning for 6days in a week for 3 months...
July 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28813523/et-26-hydrochloride-et-26-hcl-has-similar-hemodynamic-stability-to-that-of-etomidate-in-normal-and-uncontrolled-hemorrhagic-shock-uhs-rats
#18
Bin Wang, Shouming Chen, Jun Yang, Linghui Yang, Jin Liu, Wensheng Zhang
OBJECTIVE: ET-26 HCl is a promising sedative-hypnotic anesthetic with virtually no effect on adrenocortical steroid synthesis. However, whether or not ET-26 HCl also has a sufficiently wide safety margin and hemodynamic stability similar to that of etomidate and related compounds remains unknown. In this study, the effects of ET-26 HCl, etomidate and propofol on therapeutic index, heart rate (HR), mean arterial pressure (MAP), maximal rate for left ventricular pressure rise (Dmax/t), and maximal rate for left ventricular pressure decline (Dmin/t) were investigated in healthy rats and a rat model of uncontrolled hemorrhagic shock (UHS)...
2017: PloS One
https://www.readbyqxmd.com/read/28792256/triage-of-septic-patients-using-qsofa-criteria-at-the-samu-regulation-a-retrospective-analysis
#19
R Jouffroy, A Saade, A Carpentier, S Ellouze, P Philippe, R Idialisoa, P Carli, B Vivien
PURPOSE: One of the major prognostic factors in the management of sepsis is the early initiation of appropriate treatment. To serve this purpose, early identification and triage of patients are crucial steps, which are still not optimal. The objective of this study was to determine whether the quick Sequential (Sepsis-related) Organ Failure Assessment (qSOFA) score is an accurate method for prehospital triaging of septic patients. We evaluated whether the use of qSOFA criteria collected by the Service Mobile d'Urgence et de Réanimation 15 (SAMU 15) regulation call center during prehospital care would facilitate appropriate intensive care unit (ICU) admission of patients with septic syndromes...
August 9, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28765828/data-on-gender-contrasts-in-the-risk-of-incident-myocardial-infarction-by-age-the-troms%C3%A3-study-1979-2012
#20
Grethe Albrektsen, Ivar Heuch, Maja-Lisa Løchen, Dag Steinar Thelle, Tom Wilsgaard, Inger Njølstad, Kaare Harald Bønaa
The data presented in this article relate to the research article entitled "Risk of incident myocardial infarction by gender: Interactions with serum lipids, blood pressure and smoking. The Tromsø Study 1979-2012" (Albrektsen et al., 2017) [1]. Data quantify the gender differences in the risk of myocardial infarction (MI) in terms of incidence rate ratios (IRR), in subgroups defined by serum lipids, blood pressure and smoking among persons aged 35-54 years, 55-74 years and 75-94 years, respectively. Data also describe the age- and gender-specific linear associations with the coronary heart disease (CHD) risk factors...
August 2017: Data in Brief
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