A dual hereditary red blood cell defect in one family: Hypocatalasemia and glucose-6-phosphate dehydrogenase deficiency

Abstract

A family of Iranian-Jewish origin with two hereditary enzymatic defects in the red blood cells, catalase deficiency and glucose-6-phosphate dehydrogenase deficiency, is described. The two enzymatic defects were inherited independently of each other. The findings are compatible with a transmission of the catalase deficiency by an autosomal gene of incomplete dominance, the homozygous state resulting in severe catalase deficiency and the heterozygous state in intermediate catalase deficiency.