This video tells us about the amino acid metabolism defect known as Maple syrup urine disease. ITs pathophysiology, symptoms, treatments and reliabilities..Maple syrup urine disease (MSUD) is an inborn error of metabolism caused by defects in the branched-chain α-ketoacid dehydrogenase complex. TIMELINE 0:01 Introduction 1:10 MUSD stands for? 1:34 Pathophysiology 2:39 Clinical manifestation 3:29 Treatment