In addition, the levels of albumin (ALB), alanine aminotransferase (ALT), aspartate aminotransferase (AST), gamma-glutamyl transferase (GGT), alkaline phosphatase (ALP) and activated partial thromboplastin time (APTT) were lower in the retinopathy group than in the diabetes alone group. The gene discussed is GPT; the disease is diabetes mellitus.