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angiotensin 1-7

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https://www.readbyqxmd.com/read/28641720/fenofibrate-attenuates-hypertension-in-goldblatt-hypertensive-rats-role-of-20-hydroxyeicosatetraenoic-acid-in-the-nonclipped-kidney
#1
Alexandra Sporková, Věra Čertíková Chábová, Šárka Doleželová, Šárka Jíchová, Libor Kopkan, Zdeňka Vaňourková, Elzbieta Kompanowska-Jezierska, Janusz Sadowski, Hana Maxová, Luděk Červenka
BACKGROUND: There is vast evidence that the renin-angiotensin system is not the sole determinant of blood pressure (BP) elevation in human renovascular hypertension or the relevant experimental models. This study tested the hypothesis that kidney deficiency of 20-hydroxyeicosatetraenoic acid (20-HETE), a product of cytochrome P450 (CYP)-dependent ω-hydroxylase pathway of arachidonic acid metabolism, is important in the pathophysiology of the maintenance phase of 2-kidney, 1-clip (2K1C) Goldblatt hypertension...
June 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28641545/role-of-bradykinin-in-the-regulation-of-endothelial-nitric-oxide-synthase-expression-by-cardiovascular-drugs
#2
Jin Bo Su
NO produced by eNOS plays important roles in the cardiovascular system. Alterations in eNOS activity and expression occur in various cardiovascular disorders and eNOS constitutes a therapeutic target. In addition to posttranslational modifications of eNOS that affect eNOS activity, transcriptional and post-transcriptional regulation of eNOS expression also controlls eNOS-derived NO production. Bradykinin is an important determinant of vascular function and participates in the regulation of eNOS activity and expression...
June 22, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28638984/associations-of-aldosterone-and-renin-concentrations-with-inflammation-the-study-of-health-in-pomerania-and-the-german-conn-s-registry
#3
A Grotevendt, H Wallaschofski, M Reincke, C Adolf, M Quinkler, M Nauck, W Hoffmann, R Rettig, A Hannemann
PURPOSE: Chronic inflammation is an age-independent and body mass index-independent contributor to the development of multi-morbidity. Alterations of the renin-angiotensin-aldosterone system are observed within the context of proinflammatory states. We assessed circulating aldosterone, renin, and inflammatory biomarker concentrations in healthy, normotensive subjects and patients with primary aldosteronism. METHODS: We included 1177 normotensive individuals from the population-based Study of Health in Pomerania (first follow-up, Study of Health in Pomerania-1) and 103 primary aldosteronism patients from the German Conn's Registry...
June 22, 2017: Endocrine
https://www.readbyqxmd.com/read/28636754/linagliptin-and-its-effects-on-hyperglycaemia-and-albuminuria-in-patients-with-type-2-diabetes-and-renal-dysfunction-the-randomized-marlina-t2d%C3%A2-trial
#4
P-H Groop, M E Cooper, V Perkovic, B Hocher, K Kanasaki, M Haneda, G Schernthaner, K Sharma, R C Stanton, R Toto, J Cescutti, M Gordat, T Meinicke, A Koitka-Weber, S Thiemann, M von Eynatten
AIMS: The MARLINA-T2D™ study (ClinicalTrials.gov, NCT01792518) was designed to investigate the glycaemic and renal effects of linagliptin added to standard-of-care in individuals with type 2 diabetes and albuminuria. METHODS: 360 individuals with type 2 diabetes, HbA1c 6.5 - 10.0% (48 - 86 mmol/mol), estimated glomerular filtration rate (eGFR) ≥30 mL/min/1.73 m(2) , and urinary albumin-to-creatinine ratio (UACR) 30-3000 mg/g despite single agent renin-angiotensin-system blockade were randomized to double-blind linagliptin (n = 182) or placebo (n = 178) for 24 weeks...
June 21, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28627932/short-term-prognostic-effect-of-prior-cerebrovascular-and-peripheral-artery-disease-in-patients-with-acute-coronary-syndrome-can-we-do-better
#5
Filipa Cordeiro, Pedro S Mateus, Alberto Ferreira, Silvia Leao, Miguel Moz, J Ilidio Moreira
BACKGROUND: We sought to evaluate the impact of prior cerebrovascular and/or peripheral arterial disease (PAD) on in-hospital outcomes in patients with acute coronary syndromes. METHODS: From 1 October 2010 to 26 February 2016, 13,904 acute coronary syndrome patients were enrolled in a national multicentre registry. They were divided into four groups: prior stroke/transient ischaemic attack (stroke/TIA); prior PAD; prior stroke/TIA and PAD; none. The endpoints included in-hospital mortality and a composite endpoint of death, re-infarction and stroke during hospitalization...
June 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28626963/exercise-training-modulates-the-hepatic-renin-angiotensin-system-in-fructose-fed-rats
#6
Eliete Dalla Corte Frantz, Renata Frauches Medeiros, Isabele Gomes Giori, Juliana Bittencourt Silveira Lima, Thais Bento-Bernardes, Thaiane Gadioli Gaique, Caroline Fernandes-Santos, Tiago Fernandes, Edilamar Menezes Oliveira, Carla Paulo Vieira, Carlos Adam Conte-Junior, Karen Jesus Oliveira, Antonio Claudio Lucas da Nóbrega
The renin-angiotensin system (RAS) has been implicated in the development of metabolic syndrome. We investigated whether the hepatic RAS is modulated by exercise training and if this modulation improves the deleterious effects of fructose overload in rats. Male Wistar rats were divided into (n = 8 each) control (CT), exercise control (CT-Ex), high fructose (HFr) and exercise high fructose (HFr-Ex) groups. Fructose-drinking rats received D-fructose (100 g L(-1) ). After two weeks, CT-Ex and HFr-Ex rats were assigned to a treadmill training protocol at moderate-intensity for eight weeks (60 min day(-1) , four days/week)...
June 19, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28625505/bioequivalence-study-of-a-new-fixed-dose-combination-tablet-containing-s-amlodipine-nicotinate-and-olmesartan-medoxomil-in-healthy-korean-male-subjects
#7
Mi Jin Oh, Hyun Hwan Hwang, Hyun Gyu Kim, Geun Hyeog Lee, Yun-Seok Cho, Sun Young Lee, Soo Yeon Kang, Kyung Hee Cho, Yun Young Lee, Yun Jeong Lee, Choon-Gon Jang, Seok-Yong Lee
PURPOSE: A fixed-dose combination (FDC) pill of amlodipine (relatively old calcium channel blocker as dihydropyridine) and olmesartan (relatively new angiotensin II receptor blocker) is used for hypertension that is not adequately controlled with a single-formulation drug. Because the FDC is a one-pill formulation, and amlodipine and olmesartan have different mechanisms of action, it is expected to improve patients' medication compliance and have an increased blood pressure-lowering efficacy...
June 15, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28621445/nutritional-and-functional-bioactivity-value-of-selected-azorean-macroalgae-ulva-compressa-ulva-rigida-gelidium-microdon-and-pterocladiella-capillacea
#8
Lisete Paiva, Elisabete Lima, Ana Isabel Neto, Massimo Marcone, José Baptista
This study presents information on the biochemical composition (dry weight basis), nutritional aspects, and angiotensin I-converting enzyme (ACE) inhibitory properties of selected macroalgae (Ulva compressa, Ulva rigida, Gelidium microdon, and Pterocladiella capillacea) from Azores. Moisture content was very high (83.2% to 90.0% of fresh weight). Total dietary fiber (33.7% to 41.0%) that presented a good balance of both soluble and insoluble fibers (15.5% to 19.2% and 18.2% to 21.8%, respectively) was the most abundant component in these macroalgae...
June 16, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28619367/the-vasoprotective-axes-of-the-renin-angiotensin-system-physiological-relevance-and-therapeutic-implications-in-cardiovascular-hypertensive-and-kidney-diseases
#9
REVIEW
Xiao C Li, Jianfeng Zhang, Jia L Zhuo
The renin-angiotensin system (RAS) is undisputedly one of the most prominent endocrine (tissue-to-tissue), paracrine (cell-to-cell) and intracrine (intracellular/nuclear) vasoactive systems in the physiological regulation of neural, cardiovascular, blood pressure, and kidney function. The importance of the RAS in the development and pathogenesis of cardiovascular, hypertensive and kidney diseases has now been firmly established in clinical trials and practice using renin inhibitors, angiotensin-converting enzyme (ACE) inhibitors, type 1 (AT1) angiotensin II (ANG II) receptor blockers (ARBs), or aldosterone receptor antagonists as major therapeutic drugs...
June 12, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28611863/effect-of-azilsartan-on-day-to-day-variability-in-home-blood-pressure-a-prospective-multicenter-clinical-trial
#10
Toru Miyoshi, Ryoji Suetsuna, Naoto Tokunaga, Masayasu Kusaka, Ryuichiro Tsuzaki, Kazuya Koten, Kohno Kunihisa, Hiroshi Ito
BACKGROUND: The blood pressure variability (BPV) such as visit-to-visit, day-by-day, and ambulatory BPV has been also shown to be a risk of future cardiovascular events. However, the effects of antihypertensive therapy on BPV remain unclear. The purpose of this study was to evaluate the effect of azilsartan after switching from another angiotensin II receptor blocker (ARB) on day-to-day BPV in home BP monitoring. METHODS: This prospective, multicenter, open-labeled, single-arm study included 28 patients undergoing treatment with an ARB, which was switched to azilsartan after enrollment...
July 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28605813/overexpression-of-angiotensin-converting-enzyme-2-ameliorates-amyloid-%C3%AE-induced-inflammatory-response-in-human-primary-retinal-pigment-epithelium
#11
Xinyu Fu, Ru Lin, Yiguo Qiu, Peng Yu, Bo Lei
Purpose: Amyloid-β (Aβ) is a major constituent of drusen, which is a hallmark of early AMD. The purpose of this study was to investigate whether enhancement of ACE2, an important component of the protective angiotensin-converting enzyme 2 (ACE2)/Ang-(1-7)/Mas axis of the renin angiotensin system (RAS), ameliorates Aβ-induced inflammatory response in human RPE cells. Methods: Annexin-V FITC/propidium iodide assay for detecting apoptosis rate was used to determine the optimum concentration and incubation time of Aβ1-42...
June 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28599987/characterizing-the-time-course-of-antihypertensive-activity-and-optimal-dose-range-of-fimasartan-via-mechanism-based-population-modeling
#12
Jürgen B Bulitta, Soo Heui Paik, Yong Ha Chi, Tae Hwan Kim, Soyoung Shin, Cornelia B Landersdorfer, Yuanyuan Jiao, Rajbharan Yadav, Beom Soo Shin
Fimasartan is a novel angiotensin II receptor blocker. Our aims were to characterize the time-course of the antihypertensive activity of fimasartan via a new population pharmacokinetic/pharmacodynamic model and to define its optimal dose range. We simultaneously modelled all fimasartan plasma concentrations and 24-h ambulatory blood pressure monitoring (ABPM) data from 39 patients with essential hypertension and 56 healthy volunteers. Patients received placebo, 20, 60, or 180mg fimasartan every 24h for 28days and healthy volunteers received placebo or 20 to 480mg as a single oral dose or as seven doses every 24h...
June 6, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28596754/angiotensins-and-huntington-s-disease-a-study-on-immortalized-progenitor-striatal-cell-lines
#13
Walmor C De Mello, Yamil Gerena, Sylvette Ayala-Peña
Neurons from mouse models of Huntington's disease (HD) exhibit altered electrophysiological properties, potentially contributing to neuronal dysfunction and neurodegeneration. The renin-angiotensin system (RAS) is a potential contributor to the pathophysiology of neurodegenerative diseases. However, the role of angiotensin II (Ang II) and angiotensin (1-7) has not been characterized in HD. We investigated the influence of Ang II and angiotensin (1-7) on total potassium current using immortalized progenitor mutant huntingtin-expressing (Q111) and wild-type (Q7) cell lines...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28596676/renin-angiotensin-system-in-liver-diseases-friend-or-foe
#14
REVIEW
Ana Cristina Simões E Silva, Aline S Miranda, Natália P Rocha, Antônio L Teixeira
In the last three decades, the understanding of the renin angiotensin system (RAS) has been changed by the discoveries of functional local systems, novel biologically active peptides, additional specific receptors, alternative pathways of angiotensin (Ang) II generation, and new roles for enzymes and precursor components other than those in Ang II synthesis. In this regard, the discovery that Ang-(1-7) opposes the pressor, proliferative, pro-fibrotic, and pro-inflammatory effects mediated by Ang II has contributed to the realization that the RAS is composed of two axes...
May 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28596160/effects-of-sodium-glucose-cotransporter-2-inhibitors-on-urinary-excretion-of-intact-and-total-angiotensinogen-in-patients-with-type-2-diabetes
#15
Takuo Yoshimoto, Takayuki Furuki, Hiroyuki Kobori, Masaaki Miyakawa, Hitomi Imachi, Koji Murao, Akira Nishiyama
We conducted a descriptive case study to examine the effects of sodium-glucose cotransporter 2 (SGLT2) inhibitors on urinary angiotensinogen excretion, which represents the function of the intrarenal renin-angiotensin system, in patients with type 2 diabetes. An SGLT2 inhibitor (canagliflozin 100 mg/day, ipragliflozin 25 mg/day, dapagliflozin 5 mg/day, luseogliflozin 2.5 mg/day or tofogliflozin 20 mg/day) was administered for 1 month (n=9). ELISA kits were used to measure both urinary intact and total angiotensinogen levels...
June 8, 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/28595700/angiotensin-converting-enzyme-inhibition-early-after-heart-transplantation
#16
William F Fearon, Kozo Okada, Jon A Kobashigawa, Yuhei Kobayashi, Helen Luikart, Sean Sana, Tiffany Daun, Steven A Chmura, Seema Sinha, Garett Cohen, Yasuhiro Honda, Michael Pham, David B Lewis, Daniel Bernstein, Alan C Yeung, Hannah A Valantine, Kiran Khush
BACKGROUND: Cardiac allograft vasculopathy (CAV) remains a leading cause of mortality after heart transplantation (HT). Angiotensin-converting enzyme inhibitors (ACEIs) may retard the development of CAV but have not been well studied after HT. OBJECTIVES: This study tested the safety and efficacy of the ACEI ramipril on the development of CAV early after HT. METHODS: In this prospective, multicenter, randomized, double-blind, placebo-controlled trial, 96 HT recipients were randomized to undergo ramipril or placebo therapy...
June 13, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28591820/proton-pump-inhibitors-nephropathy-and-cardiovascular-disease-in-type-2-diabetes-the-fremantle-diabetes-study
#17
Timothy M E Davis, Jocelyn Drinkwater, Wendy A Davis
Context: There is emerging evidence of a range of adverse effects of chronic proton pump inhibitor (PPI) therapy. Objective: To assess the impact of PPI use on albuminuria, renal function and cardiovascular disease (CVD) risk in type 2 diabetes. Design: Longitudinal observational study. Setting: Urban-dwelling community. Patients: Patients with type 2 diabetes from the longitudinal observational Fremantle Diabetes Study Phase II and on stable renin-angiotensin system blocking therapy were divided into those remaining untreated with a PPI (Group 1, n=686), on PPI therapy throughout (Group 2, n=174), and commencing (Group 3, n=109) or discontinuing regular PPI therapy (Group 4, n=67) during the two years between assessments...
June 7, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28591164/alamandine-reduces-leptin-expression-through-the-c-src-p38-map-kinase-pathway-in-adipose-tissue
#18
Tsuyoshi Uchiyama, Fumikazu Okajima, Chihiro Mogi, Ayaka Tobo, Shoichi Tomono, Koichi Sato
OBJECTIVE: Obesity is associated with an increased risk of diabetes mellitus, hypertension, and renal dysfunction. Angiotensin 1-7 and alamandine are heptameric renin angiotensin system peptide hormones. Further, alamandine levels increase with renal dysfunction. In the cardiovascular system, angiotensin 1-7 and alamandine produce similar improvements and counterbalance angiotensin II in regulating vascular function. We aimed to determine whether the effect of alamandine on leptin expression and secretion in adipocytes was similar to that of angiotensin 1-7...
2017: PloS One
https://www.readbyqxmd.com/read/28587419/regulation-of-the-angiotensin-ii-p22phox-reactive-oxygen-species-signaling-pathway-apoptosis-and-8-oxoguanine-dna-glycosylase-1-retrieval-in-hyperoxia-induced-lung-injury-and-fibrosis-in-rats
#19
Yu Wang, Yuxi Zhu, Yudi Zhu, Zhongyi Lu, Feng Xu
The present study was designed to explore the impact of hyperoxia on lung injury and fibrosis via the angiotensin II (AngII)-p22phox-reactive oxygen species (ROS) signaling pathway, apoptosis and 8-oxoguanine-DNA glycosylase 1 (OGG1) repair enzyme. Newborn Sprague-Dawley rats were randomly divided in the newborn air group, newborn hyperoxia group and newborn intervention group, the latter of which was administered the chymotrypsin inhibitor, 2-(5-formylamino-6-oxo-2-phenyl-1, 6-dihydropyrimidine-1-yl)-N-[4-dioxo-1-phenyl-7-(2-pyridyloxy)] 2-heptyl-acetamide (NK3201)...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28584018/renin-angiotensin-aldosterone-system-is-not-involved-in-the-arterial-stiffening-induced-by-acute-and-prolonged-exposure-to-high-altitude
#20
Miriam Revera, Paolo Salvi, Andrea Faini, Andrea Giuliano, Francesca Gregorini, Grzegorz Bilo, Carolina Lombardi, Giuseppe Mancia, Piergiuseppe Agostoni, Gianfranco Parati
This randomized, double-blind, placebo-controlled study was designed to explore the effects of exposure to very high altitude hypoxia on vascular wall properties and to clarify the role of renin-angiotensin-aldosterone system inhibition on these vascular changes. Forty-seven healthy subjects were included in this study: 22 randomized to telmisartan (age, 40.3±10.8 years; 7 women) and 25 to placebo (age, 39.3±9.8 years; 7 women). Tests were performed at sea level, pre- and post-treatment, during acute exposure to 3400 and 5400-m altitude (Mt...
July 2017: Hypertension
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