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ACE is a target of ACE inhibitor drugs, which decrease the rate of angiotensin II production. Angiotensin II increases blood pressure by stimulating the Gq protein in vascular smooth muscle cells (which in turn activates an IP3-dependent mechanism leading to a rise in intracellular calcium levels and ultimately causing contraction).
Angiotensin III increases blood pressure and stimulates aldosterone secretion from the adrenal cortex; it has 100% adrenocortical stimulating activity and 40% vasopressor activity of angiotensin II. Angiotensin IV also has adrenocortical and vasopressor activities. Angiotensin II is a potent vasoconstrictive peptide that causes blood vessels to ...
Intracrine can also refer to a hormone acting within the cell that synthesizes it. Examples of intracrine peptide hormones: There are several protein/peptide hormones that are also intracrines. Notable examples that have been described in the references include: Peptides of the renin–angiotensin system: angiotensin II and angiotensin (1-7)
Angiotensin II is a potent pressor hormone and a primary regulator of aldosterone secretion. It is an important effector controlling blood pressure and volume in the cardiovascular system. It acts through at least two types of receptors termed AT 1 and AT 2. AGTR2 belongs to a family 1 of G protein-coupled receptors. It is an integral membrane ...
The angiotensin II receptors, (ATR1) and (ATR2), are a class of G protein-coupled receptors with angiotensin II as their ligands. [1] They are important in the renin–angiotensin system : they are responsible for the signal transduction of the vasoconstricting stimulus of the main effector hormone, angiotensin II .
Angiotensin-converting enzyme (EC 3.4.15.1), or ACE, is a central component of the renin–angiotensin system (RAS), which controls blood pressure by regulating the volume of fluids in the body. It converts the hormone angiotensin I to the active vasoconstrictor angiotensin II. Therefore, ACE indirectly increases blood pressure by causing blood ...
The adrenocorticotropic hormone receptor or ACTH receptor also known as the melanocortin receptor 2 or MC 2 receptor is a type of melanocortin receptor (type 2) which is specific for ACTH. [5] A G protein–coupled receptor located on the external cell plasma membrane, it is coupled to G αs and upregulates levels of cAMP by activating adenylyl ...
The pituitary gland (or hypophysis) is an endocrine gland about the size of a pea and weighing 0.5 grams (0.018 oz) in humans. It is a protrusion off the bottom of the hypothalamus at the base of the brain, and rests in a small, bony cavity (sella turcica) covered by a dural fold (diaphragma sellae).