in order to investigate mechanisms underlying the ovarian steroid action on hypothalamic luteinizing hormone-releasing hormone ( lhrh ) neurons , lhrh and a higher immunoreactive molecular form ( mw 1,800 daltons ) of the decapeptide were immunoassayed with antibodies of different specificities in hypothalamic subcellular fractions , after molecular sieve filtration on biogel p4 columns equilibrated with 0.2 n acetic acid containing 0.02 % sodium azide .
C0023610
lhrh
C0020663
hypothalamic