Neuropeptide Y

**Definition:** A 36-amino acid peptide present in many organs and in many sympathetic noradrenergic neurons. It has vasoconstrictor and natriuretic activity and regulates local blood flow, glandular secretion, and smooth muscle activity. The peptide also stimulates feeding and drinking behavior and influences secretion of pituitary hormones.

**Tree numbers:** - D12.644.400.500 - D12.776.631.650.500

**Synonyms:** - Neuropeptide Tyrosine