Glutathionuria

From WikiMD's Food, Medicine & Wellness Encyclopedia

Other Names: Gamma-glutamyltranspeptidase deficiency; GGT deficiency; GGT1 deficiency; GTG deficiency; Gamma-glutamyltransferase deficiency

A disorder that is characterized by increased glutathione concentration in the plasma and urine.

Epidemiology[edit | edit source]

Gamma-glutamyl transpeptidase deficiency has been detected in seven patients in five families worldwide.

Cause[edit | edit source]

Gamma-glutamyl transpeptidase catalyses the first step in the degradation of glutathione. No mutations have been identified in patients with gamma-glutamyl transpeptidase deficiency.

Inheritance[edit | edit source]

Autosomal recessive inheritance, a 25% chance

As the disease is transmitted as an autosomal recessive trait, patients should be offered genetic counseling.

Signs and symptoms[edit | edit source]

Five of the patients also had central nervous system involvement.

Diagnosis[edit | edit source]

The diagnosis is based on the finding of glutathionuria, elevated levels of glutathione in plasma and decreased activity of gamma-glutamyl transpeptidase in nucleated cells.

Treatment[edit | edit source]

No specific treatment has been proposed or tested.

Prognosis[edit | edit source]

The prognosis of gamma-glutamyl transpeptidase deficiency is hard to predict as only seven patients have been described worldwide.


NIH genetic and rare disease info[edit source]

Glutathionuria is a rare disease.


Glutathionuria Resources
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