Abstract:
:It has been demonstrated that the posteromedial cortical amygdaloid nucleus (PMCo), is sexually dimorphic. It is shown (Experiment 1) that male orchidectomy on the day of birth (D1) decreases the volume and number of neurons of the PMCo, while a single injection of propionate testosterone to the female on D1 masculinizes the PMCo in this gender. Since male gonadectomy on D1 (Experiment 2) is counteracted by a single injection of estradiol benzoate in males it has been suggested that the masculinization of the PMCo is due to the aromatization of testosterone to estradiol in this structure. These findings support the hypothesis that the development of sex differences in structures that belong to the vomeronasal system are due to the aromatization of testosterone to estradiol shortly after birth.
journal_name
Brain Res Bulljournal_title
Brain research bulletinauthors
Vinader-Caerols C,Collado P,Segovia S,Guillamón Adoi
10.1016/s0361-9230(00)00332-4keywords:
subject
Has Abstractpub_date
2000-10-01 00:00:00pages
269-73issue
3eissn
0361-9230issn
1873-2747pii
S0361-9230(00)00332-4journal_volume
53pub_type
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