GPT and muscular dystrophy: More than six decades ago, investigative studies provided evidence that serum creatine kinase (CK) is superior to other enzymes like aldolase, lactic dehydrogenase, glutamic oxalacetic transaminase, glutamic pyruvic transaminase, and phosphohexoseisomerase for the biochemical diagnosis of muscular dystrophy patients and their carrier mothers [28,32,33,34,35], allowing for the detection of preclinical cases of muscular dystrophy and disease prediction in infancy.