The Effects of Gonadectomy and Prenatal Testosterone Injection on Galanin Immunoreactive Cells in the Medial Preoptic Area of Rats / 대한해부학회지
Korean Journal of Anatomy
;
: 259-268, 1997.
Article
Dans Coréen
| WPRIM
| ID: wpr-652126
ABSTRACT
Within the medial preoptic area[MPOA], several cytoarchitectonically defined cell groups are sexually dimorphic in their morphology. Specially, the sexual dimorphic nucleus of the preoptic area[SDN-POA] is reported an example of a morphological sex difference in the rat hypothalamus which is influenced by gonadal steroid hormones. Thus, we detemined the distribution of Galanin-immunoreactive[Gal-I] cells and fibers within MPOA and their morphological response to gonadal steroids which is influenced by gonadectomy or prenatal restosterone treatments were observed. The Gal-I cells were appeared within the medial preoptic area. In the males, the volume and number of Gal-I nerve cell bodies were greater than that of females. But the female which treated prenatal testosterone injection had many Gal-I neurons than infact female. And the males that decreased the volume of gonadal hormone by gonadectomy were decreased the volume and number of Gal-I neurons than that of normal males. These results suggest that galaninergic cells within the medial preoptic area are influenced by gonadal steroid hormone[testosterone] in the regulation of sexually dimorphic function.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Aire préoptique
/
Hormones sexuelles stéroïdiennes
/
Stéroïdes
/
Testostérone
/
Immunohistochimie
/
Caractères sexuels
/
Galanine
/
Gonades
/
Hypothalamus
/
Neurones
Limites du sujet:
Animaux
/
Femelle
/
Humains
/
Mâle
langue:
Coréen
Texte intégral:
Korean Journal of Anatomy
Année:
1997
Type:
Article
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