label: Decreased tissue S-adenosylhomocysteine hydrolase activity
label_lc: decreased tissue s-adenosylhomocysteine hydrolase activity
description: "Concentration or activity of S-adenosylhomocysteine hydrolase (EC 3.3.1.1) below the lower limit of normal. FECH enzyme can be measured in multiple tissues including erythrocytes and liver."