Description : Cortisone reductase deficiency (CRD) results from a failure to regenerate the active
glucocorticoid cortisol from cortisone via the enzyme 11-beta-hydroxysteroid dehydrogenase
(HSD11B1; 600713). The oxoreductase activity of 11-beta-HSD requires the NADPH-regenerating
enzyme hexose-6-phosphate dehydrogenase (H6PD; 138090) within the endoplasmic reticulum.
Lack of cortisol regeneration stimulates;
Inheritance : Autosomal recessive;
Molecular basis : Caused by mutation in the hexose-6-phosphate dehydrogenase gene (H6PD, 138090.0001);