nitric oxide synthase

Nitric oxide synthase (NOS) is an enzyme that helps produce nitric oxide (NO), a small molecule that plays a crucial role in the body. Nitric oxide acts as a signaling molecule, helping to regulate blood flow, immune responses, and neurotransmission. There are three main types of NOS: neuronal (nNOS), inducible (iNOS), and endothelial (eNOS), each with specific roles in different tissues. By facilitating the relaxation of blood vessels and influencing various cellular functions, nitric oxide is essential for cardiovascular health and overall physiological balance. Understanding NOS helps researchers develop treatments for conditions like heart disease and inflammation.