For example, doctors use some stimulants to treat disorders such as Attention-Deficit/Hyperactivity Disorder (ADHD). However, when abused, stimulants can pose serious health risks to your brain and your body. Read on to find out the effects of the following stimulants: Cocaine.
peptide hormones (pepËÂ·tÄ«d hÅrËÂ·mÅnz), n.pl water-soluble hormones comprised of a few amino acids that introduce a series of chemical reactions to change the cell's metabolism. Examples include hormones of the pituitary gland and parathyroid glands.
Peptides are short chains of amino acids; most hormones are peptides. They are secreted by the pituitary, parathyroid, heart, stomach, liver, and kidneys. Amines are derived from the amino acid tyrosine and are secreted from the thyroid and the adrenal medulla. Solubility of the various hormone classes varies.