“…We have attempted many times to demonstrate a receptor in the neonatal rat using 3H-DHT and 3H-R188I as the ligand, but have been unable to do so [unpublished data]. The steroid specificity of the proposed system may be the reason we were unable to demonstrate receptor and why DHT im planted in the brain will not induce masculinization during the critical period while the same quantity of testosterone will [15], There have been reports of androgen receptors in the neonatal rat brain but no mention as to whether they bound DHT [19,22]. Earlier work indicated that they do not appear until day 5-7.…”
Data are presented which suggest that testosterone or one of its unaromatized metabolites act on at least three areas of the rat brain during the period of sexual differentiation. In addition, it is proposed that there are two androgen receptor systems in the brain responsible for nuclear uptake and retention of androgen.
“…We have attempted many times to demonstrate a receptor in the neonatal rat using 3H-DHT and 3H-R188I as the ligand, but have been unable to do so [unpublished data]. The steroid specificity of the proposed system may be the reason we were unable to demonstrate receptor and why DHT im planted in the brain will not induce masculinization during the critical period while the same quantity of testosterone will [15], There have been reports of androgen receptors in the neonatal rat brain but no mention as to whether they bound DHT [19,22]. Earlier work indicated that they do not appear until day 5-7.…”
Data are presented which suggest that testosterone or one of its unaromatized metabolites act on at least three areas of the rat brain during the period of sexual differentiation. In addition, it is proposed that there are two androgen receptor systems in the brain responsible for nuclear uptake and retention of androgen.
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