acts on corpus luteum, galactophore and ovarian. When valine is in a low level, the supply imbalance and dysfunction of central nervous system function of the rats will occur, which will result in limbs tremor. Anatomic slice of the brain tissue showed the red nucleus cell degeneration. Patients with advanced cirrhosis often contract high hyperinsulinemia due to the damage to the liver, and this result in the reduction of branched-chain amino acids in the blood. The ratio of branched-chain amino acids and aromatic amino acids decreases from the normal range of 3.0-3.5 to 1.0 -1.5. So the branched-chain amino acid injection such as valine is often used in the treatment of diseases as liver failure. In addition, it can also functions as a therapeutic agent accelerating the wound healing.