Endocrine Abstracts

We determined in vitro activity of 17β-estradiol and or progesterone on glutamate conversion to GABA in different GABAergic regions from the brain of castrated and non-castrated rats. The glutamate decarboxylase catalyzes this conversion; there are two different isotypes of glutamate decarboxylase, GAD65 and GAD67. Whereas GAD65 is a membrane enzyme, GAD67 is present in the supernatant obtained after centrifuging to 14,...

Sleep is disturbed in both healthy and pathological aging, so it is essential to consider the role of ovarian hormones in both processes. Studies supporting the natural function of E2 (or elevated FSH) in fragmented sleep are inconsistent because when non-human animals have been used, they have mainly been male. Given this background, this study focused on determining the role of different estradiol and progesterone doses in the intermittent arousals of castrated rats maintain...