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.
Peptide Hormones and Protein Hormones: Examples of peptide hormones are hypothalamic hormones (e.g., antidiuretic hormone (ADH), Oxytocin). Protein hormones include insulin, glucagon, pituitary hormones (e.g., growth hormone, thyroid stimulating hormone), thyrocalcitonin hormone, parathyroid hormone. 3. Iodothyronines: Iodothyronines is group of iodinated amino acids with a diphenyl ether ring system in the side chain.