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The action of AII itself is targeted by angiotensin II receptor antagonists, which directly block angiotensin II AT 1 receptors. Angiotensin II is degraded to angiotensin III by angiotensinases located in red blood cells and the vascular beds of most tissues.
The angiotensin receptor is activated by the vasoconstricting peptide angiotensin II.The activated receptor in turn couples to G q/11 and G i/o and thus activates phospholipase C and increases the cytosolic Ca 2+ concentrations, which in turn triggers cellular responses such as stimulation of protein kinase C.
Angiotensin II, through AT 1 receptor stimulation, is a major stress hormone and, because (ARBs) block these receptors, in addition to their eliciting anti-hypertensive effects, may be considered for the treatment of stress-related disorders. [14] In 2008, they were reported to have a remarkable negative association with Alzheimer's disease (AD).
The actions of Ang II are mediated by angiotensin receptors, AT 1 and AT 2.These receptors are members of the G protein-coupled receptors family which are seven transmembrane helices, connected by interchanging extracellular and intracellular loops.
11609 Ensembl ENSG00000180772 ENSMUSG00000068122 UniProt P50052 P35374 RefSeq (mRNA) NM_000686 NM_001385624 NM_007429 RefSeq (protein) NP_000677 NP_031455 Location (UCSC) Chr X: 116.17 – 116.17 Mb Chr X: 21.35 – 21.36 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Angiotensin II receptor type 2, also known as the AT 2 receptor is a protein that in humans is encoded by the AGTR2 ...
Angiotensin II is the major bioactive product of the renin–angiotensin system, binding to receptors on intraglomerular mesangial cells, causing these cells to contract along with the blood vessels surrounding them; and to receptors on the zona glomerulosa cells, causing the release of aldosterone from the zona glomerulosa in the adrenal cortex.
Angiotensin II is a potent vasoconstrictor in a substrate concentration-dependent manner. [10] Angiotensin II binds to the type 1 angiotensin II receptor (AT1), which sets off a number of actions that result in vasoconstriction and therefore increased blood pressure.
Angiotensin II receptor type 1 (AT1) is a G q/11-coupled G protein-coupled receptor (GPCR) and the best characterized angiotensin receptor. It is encoded in humans by the AGTR1 gene. AT1 has vasopressor effects and regulates aldosterone secretion. It is an important effector controlling blood pressure and volume in the cardiovascular system.