Adrenal steroids in adrenomyeloneuropathy: Dehydroepiandrosterone sulfate, androstenedione and 17[alpha]-hydroxyprogesterone

Adrenoleukodystrophy (ALD) and its adult variant adrenomyeloneuropathy (AMN) are X-linked diseases associated with a deficiency in the peroxisomal degradation of saturated very long chain fatty acids (VLCFA) resulting in an accumulation of VLCFA in the central and peripheral myelin, the adrenal cortex and the testis. Adrenal insufficiency with clinical hypocortisolism occurs in approximately two thirds of the patients with AMN.We studied the circulating adrenal hormones17α-hydroxyprogesterone (17α-OHP), androstenedione and dehydroepiandrosterone sulphate (DHEAS) in 63 male AMN patients (age 17-65 years) and the DHEAS serum levels in 95 healthy male controls (age 30-65 years). 34 of the patients presented with the phenotype of only spinal cord and peripheral nerve disability without hypocortisolism, 29 of the patients presented with the phenotype of either additional hypocortisolism or Addison's syndrome only. Normal 17α-OHP concentrations were found in all patients with no significant difference between patients without and with hypocortisolism (6.07±0.61 nmol/l and 4.76±0.37 nmol/l). Androstenedione concentration was significantly (p