Sexual dimorphism of glial fibrillary acidic protein (GFAP) immunoreactivity in the rat interpeduncular nucleus.
The intensity of immunostaining for the glial fibrillary acidic protein (GFAP) is outstandingly high in the interpeduncular nucleus. This nucleus was compared in males and females for its GFAP immunoreaction. Immunohistochemistry was carried out on free floating vibratome slices and evaluated by surface densitometry. While in males the reactions were similar, females showed individual variations. Since the interpeduncular nucleus is a hormonally inactive brain area where gonadal hormones do not induce plastic synaptic changes, it is concluded that concerning this astroglial marker a sexual dimorphism exists also outside the "endocrine brain".
Gerics
B
B
Department of Anatomy and Histology, Faculty of Veterinary Science, Budapest Szent István University, Hungary.
Halasy
K
K
Szalay
F
F
Hajós
F
F
D000818:Animals; D005260:Female; D005904:Glial Fibrillary Acidic Protein / Q000378:metabolism*; D007150:Immunohistochemistry; D008297:Male; D008636:Mesencephalon / Q000378:metabolism*; D051381:Rats; D012727:Sex Characteristics
D005904:Glial Fibrillary Acidic Protein