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“These findings are compatible with the hypothesis that estradiol potentiates secretion of the inhibitory neurotransmitter gamma-amino-butyric acid (GABA) at auditory nerve synapses, leading to delayed synaptic conduction time.”
“Furthermore, the amount of both GABA and glutamate content decreased due to high dose of estradiol , while only GABA increased in Pilocarpine treated rats.”
“In the arcuate nucleus, a major regulator of anterior pituitary function, estradiol increases GABA synthesis, altering the morphology of neighboring astrocytes and reducing formation of dendritic spines synapses.”
The Journal of Steroid Biochemistry and Molecular Biology • 2008 | View Paper
“Using whole‐cell patch clamp recording, we found previously that 17β‐oestradiol (E2) rapidly altered γ‐aminobutyric acid ( GABA ) neurotransmission in hypothalamic neurones through a membrane oestrogen receptor (mER).”
“The time needed for the onset of 17 beta-estradiol effect on mIPSC amplitude was approximately 48 h. In the period of 9-11DIV, treatment with 17 beta-estradiol strongly reduced the tonic conductance activated by low GABA concentrations.”
“ Estradiol blocked MCAO-induced increases in GABA concentration only in dorsomedial cortex.”
“It may be that estradiol under ischemic conditions is attenuating GABA metabolism rather than enhancing synthesis or is augmenting other aspects of GABAergic transmission such as GABA transporters and receptors.”
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism • 2006 | View Paper
“In support of our hypothesis, the K+‐evoked increase in GABA , but not taurine or glutamate, was significantly attenuated 30 min after treatment with estradiol.”