title: Clinical value of serum gamma-glutamyl transferase estimation in porphyria cutanea tarda.
abstract: Serum gamma-glutamyl transferase was elevated fourfold in all thirty-four new cases of porphyria cutanea tarda. Phlebotomy treatment decreased it. The twelve patients in relapse showed a considerable increase, while those in remission tended to a gradual elevation in the enzyme over the course of years. gamma-Glutamyl transferase is a useful auxiliary parameter in porphyria cutanea tarda particularly in untreated cases.
mesh_terms: D000328:Adult; D001815:Bloodletting; D006801:Humans; D008297:Male; D008875:Middle Aged; D011164:Porphyrias / Q000201:enzymology* / Q000628:therapy; D012871:Skin Diseases / Q000201:enzymology* / Q000628:therapy; D005723:gamma-Glutamyltransferase / Q000097:blood*
chemical_list: D005723:gamma-Glutamyltransferase