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Background: Acute ethanol administration increases plasma and brain levels of progesterone and deoxycorticosterone‐derived neuroactive steroids (3α,5α)‐3‐hydroxypregnan‐20‐one (3α,5α‐THP) and (3α,5α)‐3,21‐dihydroxypregnan‐20‐one (3α,5α‐THDOC) in rats. However, little is known about ethanol effects on GABAergic neuroactive steroids in mice, nonhuman primates, or humans. We investigated the effects...
This report summarizes the proceedings of the symposium VII on the role of neuroactive steroids in stress/alcohol interactions. The production of GABAergic neuroactive steroids, including (3α,5α)-3-hydroxypregnan-20-one and (3α,5α)-3,21-dihydroxypregnan-20-one is a consequence of both acute stress and acute ethanol exposure. Acute, but not chronic ethanol administration elevates brain levels of these...
The 3α,5α- and 3α,5β-reduced derivatives of progesterone, deoxycorticosterone, dehydroepiandrosterone and testosterone enhance GABAergic neurotransmission and produce inhibitory neurobehavioral and anti-inflammatory effects. Despite substantial information on the progesterone derivative (3α,5α)-3-hydroxypregnan-20-one (3α,5α-THP, allopregnanolone), the physiological significance of the other endogenous...
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