SEXUAL DIMORPHISM IN THE BED NUCLEUS OF THE ACCESSORY OLFACTORY TRACT IN THE RAT

被引:49
作者
COLLADO, P [1 ]
GUILLAMON, A [1 ]
VALENCIA, A [1 ]
SEGOVIA, S [1 ]
机构
[1] UNIV NACL EDUC DISTANCIA,DEPT PSICOBIOL,E-28040 MADRID,SPAIN
来源
DEVELOPMENTAL BRAIN RESEARCH | 1990年 / 56卷 / 02期
关键词
Bed nucleus of the accessory olfactory tract; Glial cell; Sex difference; Sex steroid; Vomeronasal system;
D O I
10.1016/0165-3806(90)90091-C
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
This work investigates the existence of sex differences in the volume and number of neurons and glial cells in the bed nucleus of the accessory olfactory tract (BAOT). Males showed larger volume and number of cells than female rats. Early postnatal (day 1 after birth) orchidectomy in males, and androgenization in females, reversed these differences. No sex differences were found in BAOT glial cells. The sexual dimorphism found in the neuron/glial cell ratio reflects sex differences in neuron number. The existence of sexual dimorphism in the BAOT supports our earlier hypothesis which states that the vomeronasal system (VNS) is sexually dimorphic. © 1990.
引用
收藏
页码:263 / 268
页数:6
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