Figure 2From: Decreased plasma neuroactive amino acids and increased nitric oxide levels in melancholic major depressive disorder Plasma levels of neuroactive amino acids and nitric oxide (NO) in melancholic major depressive disorder before and after 2 months of fluoxetine antidepressant treatment (20-40 mg/day). (A): Asp, aspartic acid; (B): Gly, glycine; (C): GABA, gamma-aminobutyric acid; (D): NO, nitric oxide. MDD, major depressive disorder. Please note that there is no change in spite of the treatment (P ≥ 0.128).Back to article page