title: Opiate receptor binding activity of 17-alpha estrogenic steroids.
mesh_terms: D000818:Animals; D001667:Binding, Competitive; D004855:Equilenin / Q000031:analogs & derivatives / Q000378:metabolism; D004958:Estradiol / Q000378:metabolism; D004962:Estranes / Q000494:pharmacology; D004967:Estrogens / Q000378:metabolism*; D066298:In Vitro Techniques; D008297:Male; D009270:Naloxone / Q000378:metabolism; D011869:Radioligand Assay; D051381:Rats; D011957:Receptors, Opioid / Q000378:metabolism*
chemical_list: D004962:Estranes; D004967:Estrogens; D011957:Receptors, Opioid; D009270:Naloxone; D004958:Estradiol; D004855:Equilenin