β-Adrenergic receptor, an essential target in cardiovascular diseases

Abstractβ-Adrenergic receptors (βARs) belong to a large family of cell surface receptors known as G protein–coupled receptors (GPCRs). They are coupled to Gs protein (Gαs) for the activation of adenylyl cyclase (AC) yielding cyclic AMP (CAMP), and this provides valuable responses, which can affect the cardiac function such as injury. The binding of an agonist to βAR enhances conformation changes that lead to the Gαs subtype of heterotrimeric G protein which is the AC stimulatory G protein for activation ofCAMP in the cells. However, cardiovascular diseases (CVD) have been reported as having an increased rate of death and β1AR, and β2AR are a promising tool that improves the regulatory function in the cardiovascular system (CVS) via signaling. It increases the Gα level, which activates βAR kinase (βARK) that affects and enhances the progression of heart failure (HF) through the activation of cardiomyocyte βARs. We also explained that an increase in GPCR kinases (GRKs) would practically improve the HF pathogenesis and this occurs via the desensitization of βARs, which causes the loss of contractile reserve. The consistency or overstimulation of catecholamines contributes to CVD such as stroke, HF, and car diac hypertrophy. When there is a decrease in catecholamine responsiveness, it causes aging in old people because the reduction of βAR sensitivity and density in the myocardium enhances downregulation of...
Source: Heart Failure Reviews - Category: Cardiology Source Type: research

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Source: Drugs.com - Daily MedNews - Category: General Medicine Source Type: news
Scientists at the Karolinska Institutet in Sweden analysed data from 1.3million people and found those who had genetic traits for insomnia had higher odds of suffering heart diseases.
Source: the Mail online | Health - Category: Consumer Health News Source Type: news
People genetically predisposed to sleep problems have greater risk of stroke and coronary artery diseasePeople who struggle with sleep might be at greater risk of developing cardiovascular problems, research suggests.Scientists have found that people who are genetically predisposed to insomnia have a greater risk of heart failure, stroke and coronary artery disease.Continue reading...
Source: Guardian Unlimited Science - Category: Science Authors: Tags: Sleep Health & wellbeing Life and style Science Heart disease Stroke UK news Society Source Type: news
People genetically predisposed to sleep problems have greater risk of heart failure and stroke, say researchersPeople who struggle with sleep might be at greater risk of developing cardiovascular problems, research suggests.Scientists have found that people who are genetically predisposed to insomnia have a greater risk of heart failure, stroke and coronary artery disease.Continue reading...
Source: Guardian Unlimited Science - Category: Science Authors: Tags: Sleep Health & wellbeing Life and style Science Heart disease Stroke UK news Society Source Type: news
Authors: Wang TKM, Liao YB, Choi D, Harmos S, Haydcok D, Gerber I Abstract AIMS: A significant minority of patients undergoing mitral valve surgery (MVR) have indication for coronary artery bypass grafting (CABG). The risks of combination surgeries are not well appreciated and maybe more than additive. We compared the characteristics and outcomes of MVR+/-CABG performed at our centre. METHODS: Consecutive patients undergoing isolated MVR or with concurrent (MVR+)CABG at Auckland City Hospital during 2005-2012 were compared for baseline and operative characteristics and outcomes in univariable and multivariable ...
Source: New Zealand Medical Journal - Category: General Medicine Tags: N Z Med J Source Type: research
Publication date: Available online 14 August 2019Source: The Lancet Diabetes &EndocrinologyAuthor(s): Søren L Kristensen, Rasmus Rørth, Pardeep S Jhund, Kieran F Docherty, Naveed Sattar, David Preiss, Lars Køber, Mark C Petrie, John J V McMurraySummaryBackgroundGlucagon-like peptide-1 (GLP-1) receptor agonists differ in their structure and duration of action and have been studied in trials of varying sizes and with different patient populations, with inconsistent effects on cardiovascular outcomes reported. We aimed to synthesise the available evidence by doing a systematic review and meta-analysis...
Source: The Lancet Diabetes and Endocrinology - Category: Endocrinology Source Type: research
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Source: Heart Failure Reviews - Category: Cardiology Source Type: research
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Source: European Journal of Radiology - Category: Radiology Source Type: research
Authors: Sun HJ Abstract Arterial hypertension remains to be a serious problem with considerable morbidity and mortality worldwide in the present age. Hypertension is a major risk factor for cardiovascular diseases such as stroke, myocardial infarction, renal failure, and heart failure. Hypertensive nephropathy is the second leading cause of death in chronic kidney disease (CKD) around the world. Long-time hypertension loading results in renal interstitial fibrosis, which is associated with aberrant activation of renal fibroblasts and excessive generation of extracellular matrix (ECM) proteins. Increasing evidence ...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
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Source: African Journal of Emergency Medicine - Category: Emergency Medicine Source Type: research
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