Steroid 5α-reductase type 1 as a neurodevelopmental toxicological target: Hydrophobicity governs environmental inhibition within, but not across, chemical classes.
Steroid 5α-reductase type 1 (SRD5A1) catalyzes the rate-limiting reduction of progesterone to 5α-dihydroprogesterone, the committed step toward allopregnanolone, a positive allosteric modulator of γ-aminobutyric acid type A (GABAA) receptors. Its clinical relevance is shown by allopregnanolone therapeutics for postpart...