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Angiotensin II (Ang II) is a medication that is used to treat hypotension resulting from septic shock or other distributive shock. It is a synthetic vasoconstrictor peptide that is identical to human hormone angiotensin II [ 3 ] and is marketed under the brand name Giapreza .
High concentrations of Angiotensin II can constrict the glomerular mesangium, reducing the area for glomerular filtration. Angiotensin II is a sensitizer to tubuloglomerular feedback, preventing an excessive rise in GFR. Angiotensin II causes the local release of prostaglandins, which, in turn, antagonize renal vasoconstriction.
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 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 is an important effector controlling blood pressure and volume in the cardiovascular system.
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.
Antihypertensive agents comprise multiple classes of compounds that are intended to manage hypertension (high blood pressure). Antihypertensive therapy aims to maintain a blood pressure goal of <140/90 mmHg in all patients, as well as to prevent the progression or recurrence of cardiovascular diseases (CVD) in hypertensive patients with established CVD. [2]
Gladiator II opens in the year 200 A.D. It’s been 16 years since the death of the benevolent emperor Marcus Aurelius, whose once-glorious “dream of Rome” has been replaced by a new reality ...
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.