For example, angiotensin-converting enzyme (ACE) inhibitors and angiotensin II type 1 receptor blockers (ARBs) are primarily designed to block and/or reduce the detrimental effects of angiotensin II (Ang II); and brain natriuretic peptide (BNP) and N-terminal proBNP (NT proBNP) are used as nonspecific biomarkers for the diagnosis of heart failure. This evidence concerns the gene ACE and heart failure.