38 research outputs found
Light and electron microscopic immunocytochemical analysis of the dopamine innervation of the rat visual cortex
Light and electron microscopic immunocytochemical analysis of the serotonin innervation of the rat visual cortex
Modulation of Plasma LH, FSH, and Prolactin Patterns by Castration or Castration and Partial Testosterone Replacement in Adult Male Rats
Morphofunctional Evolution of the Neurohemal Regions of the Hypothalamo-Hypophyseal System
Effects of estrogen on the release of gonadotropins and prolactin in male pseudohermaphrodites
Dopamine stimulates the degradation of gonadotropin releasing hormone by rat synaptosomes
Effects of repeated administration of estradiol benzoate on tubero-infundibular GABAergic activity in male rats
Repeated (once a day for 8 days) but not single administration of estradiol benzoate (10 μg/kg, s.c.) induced a sevenfold increase in anterior pituitary γ-aminobutyric acid (GABA) concentration in male rats. GABA concentration also increased in the median eminence whereas no changes or decreases were observed in other brain regions including hypothalamic arcuate nucleus, lateral septum, hippocampus, caudate nucleus, and substantia nigra. Eight-day estradiol benzoate injection also enhanced the V(max) of median eminence glutamate decarboxylase activity without affecting the K(m) of the enzyme for glutamic acid. Taken together, these results suggest that repeated administration of estradiol benzoate increases the activity of the tubero-infundibular GABAergic system in male rats