calcium chloride (CaCl 2), a granular white chemical with an unpleasant taste. It is used in a concentrated solution of the chloride salt of calcium to replenish calcium in the blood and also has uses in cardiac resuscitation.
Neuropeptides are small protein-like molecules (peptides) used by neurons to communicate with each other. They are neuronal signaling molecules that influence the activity of the brain in specific ways.
Brain natriuretic peptide (BNP) is a member of a family of 4 human natriuretic peptides that share a common 17-peptide ring structure. The first was identified in 1983 and named atrial natriuretic peptide (ANP). ANP is a 28-amino acid polypeptide resulting from the C-terminal end of the prohormone proANP.atriuretic peptide receptors and plasma endopeptidases actively clear BNP from the circulation; the plasma half-life is thus short, approximately 20 minutes. No receptor-mediated clearance of NT-proBNP is known to occur, and NT-proBNP has a correspondingly prolonged half-life of 60-120 minutes.