Brain natriuretic peptide

In medicine, brain natriuretic peptide (BNP)is "peptide that is secreted by the brain and the heart atria, stored mainly in cardiac ventricular myocardium. It can cause natriuresis; diuresis; vasodilation; and inhibits secretion of renin and aldosterone. it improves heart function. it contains 32 amino acids."

An elevated BNP can detect heart failure: