Estradiol masculinizes the posteromedial cortical nucleus of the amygdala in the rat.

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 Bull

journal_title

Brain research bulletin

authors

Vinader-Caerols C,Collado P,Segovia S,Guillamón A

doi

10.1016/s0361-9230(00)00332-4

keywords:

subject

Has Abstract

pub_date

2000-10-01 00:00:00

pages

269-73

issue

3

eissn

0361-9230

issn

1873-2747

pii

S0361-9230(00)00332-4

journal_volume

53

pub_type

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