Angiotensin ELISA kits are assays designed to detect the peptide hormone angiotensin, which is part of the renin-angiotensin system. It increases blood pressure through vasoconstriction and stimulates the production of aldosterone for sodium retention in the kidneys. Angiotensinogen acts as a precursor to angiotensin. Types of angiotensin include angiotensin I, II, III and IV, which have varied functions. Angiotensin I is a precursor to angiotensin II. Increased secretion of angiotensin II has been associated with hypertension, while blocking its receptors has been shown to have a protective effect against neurodegenerative conditions. Visit the supplier page for more information about detection target, range and reactivity.