Biochemical studies of a patient with hereditary hepatorenal tyrosinemia: evidence of glutathione deficiency. Academic Article uri icon

Overview

MeSH

  • Erythrocytes
  • Female
  • Heme
  • Humans
  • Infant
  • Liver
  • Mass Spectrometry
  • Mixed Function Oxygenases
  • Pyrroles
  • Syndrome

MeSH Major

  • Fanconi Syndrome
  • Glutathione
  • Liver Diseases
  • Phosphates
  • Rickets
  • Tyrosine

abstract

  • Metabolic and enzymatic studies in a patient with hereditary tyrosinemia demonstrated for the first time a deficiency of erythrocyte and hepatic glutathione. Markedly decreased hepatic fumarylacetoacetate hydrolase activity was demonstrated in this patient. The activities of hepatic enzymes not involved in tyrosine metabolism were also determined. Assay of mixed function oxidase activity demonstrated low levels of aryl hydrocarbon hydroxylase and 7-ethoxycoumarin deethylase, suggesting decreased hepatic detoxification capacity. 5-Aminolevulinic acid dehydratase activity was undetectable. Succinylacetone (4,6-dioxoheptanoic acid), an abnormal metabolic product secondary to fumarylacetoacetate hydrolase deficiency was found in serum and urine. Succinylacetone was demonstrated to inhibit 5-aminolevulinic acid dehydratase in vitro, as did the urine, plasma, and red cell lysates of the patient.

publication date

  • December 1984

has subject area

  • Erythrocytes
  • Fanconi Syndrome
  • Female
  • Glutathione
  • Heme
  • Humans
  • Infant
  • Liver
  • Liver Diseases
  • Mass Spectrometry
  • Mixed Function Oxygenases
  • Phosphates
  • Pyrroles
  • Rickets
  • Syndrome
  • Tyrosine

Research

keywords

  • Case Reports
  • Journal Article

Identity

Language

  • eng

PubMed ID

  • 6522148

Additional Document Info

start page

  • 1332

end page

  • 1336

volume

  • 18

number

  • 12