GPT and major depressive disorder: Peng et al[73] found significant differences in total protein (TP), fasting blood glucose (FBG), alanine transaminase (ALT), lactate dehydrogenase (LDH), high-density lipoprotein-cholesterol (HDL-C), urea nitrogen (UN), uric acid (UA), creatinine (Cr), total bile acid (TBA), direct bilirubin (Dbil), indirect bilirubin (Ibil), total bilirubin (Tbil), and fructosamine (SF) between patients with depression and healthy controls.