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METHODS The patient was a boy born in June, 1990. The proband's father had a history of nonspherocytic hemolytic anemia. The patient was anemic at birth (Hb 11.9 g/dl) and had a hemolytic attack on postnatal day 2. His hemolysis became well compensated, and his second hemolytic episode occurred at three years of age. RESULTS The patient's mental development had so far been normal and he has no neurological symptoms. His only clinical manifestation has been compensated hemolytic anemia with a hemoglobin concentration of about 11.0 g/dl and a reticulocyte count of 3-6%. He was positive on the Heinz body formation test, and target cells were seen on his peripheral blood smear. The osmotic fragility test yielded slightly increased value. Decreased reduced glutathione (GSH) was observed (4.4 mg/dlRBC) (normal range: 63.9 +/- 9.6), and he also had decreased glutathione synthetase (GS) activity of 0.03 U/gHb (0.38 +/- 0.08 U/gHb). A diagnosis of GS deficiency was made. Decreased glutathione S-transferase (GST) activity was also found (0.57 U/gHb) (normal range: 6.65 +/- 1.20). CONCLUSIONS GS deficiency has been reported in about 30 families all over the world. This patient was the first Japanese patient with red cell GS deficiency.
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