Anticonvulsant activity of the testosterone-derived neurosteroid 3alpha-androstanediol. Academic Article uri icon


  • 3alpha-Androstanediol is synthesized from testosterone in peripheral tissues and in the brain, but the clinical importance of this neurosteroid remains unclear. This study evaluated the effects of 3alpha-androstanediol on seizure susceptibility in mouse models of epilepsy. 3alpha-Androstanediol protected mice against seizures induced by GABAA receptor antagonists pentylenetetrazol, picrotoxin, and beta-carboline ester in a dose-dependent fashion. However, 3alpha-androstanediol was inactive against seizures induced by glutamate receptor agonists kainic acid, NMDA and 4-aminopyridine. Pretreatment with the androgen receptor antagonist flutamide had no effect on seizure protection by 3alpha-androstanediol. These results suggest that 3alpha-androstanediol has powerful anticonvulsant activity that occurs largely through non-genomic mechanisms. Testosterone-derived 3alpha-androstanediol might be an endogenous protective neurosteroid in the brain.

published proceedings

  • Neuroreport

altmetric score

  • 3

author list (cited authors)

  • Reddy, D. S.

citation count

  • 60

complete list of authors

  • Reddy, Doodipala S

publication date

  • January 2004