180 citations
,
June 2004 in “Journal of Pharmacology and Experimental Therapeutics” This study found that progesterone's antiseizure effects in mice occurred primarily through conversion to allopregnanolone, rather than through the progesterone receptor, as evidenced by results in PR knockout mice.
March 2008 in “The FASEB Journal” This study found that neurosteroid withdrawal significantly increased hippocampal GABA-A receptor α4 subunit expression in female mice, confirming an association between neurosteroid withdrawal and altered receptor expression.
151 citations
,
December 2004 in “Neuropharmacology” Progesterone reduces anxiety without needing progesterone receptors.
35 citations
,
January 2005 in “Brain Research” This study indicates that progesterone’s anesthetic activity in PR knockout mice is not due to progesterone receptors but is partially mediated by the neurosteroid allopregnanolone through GABAA receptor potentiation.
14 citations
,
March 2017 in “Brain research” This study suggests that ovarian cycle-related progesterone and neurosteroids regulate α2-subunit expression of GABA-A receptors in the hippocampus through a pathway independent of progesterone receptors, potentially affecting brain conditions linked to the menstrual cycle.