Title : Neurosteroid synthesis-mediated regulation of GABA(A) receptors: relevance to the ovarian cycle and stress.

Pub. Date : 2007 Feb 28

PMID : 17329412






8 Functional Relationships(s)
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1 Recently, we demonstrated cyclic alterations in GABA(A) receptor (GABA(A)R) subunit composition over the ovarian cycle correlated with fluctuations in progesterone levels. Progesterone gamma-aminobutyric acid (GABA) A receptor, subunit gamma 2 Mus musculus
2 Recently, we demonstrated cyclic alterations in GABA(A) receptor (GABA(A)R) subunit composition over the ovarian cycle correlated with fluctuations in progesterone levels. Progesterone gamma-aminobutyric acid (GABA) A receptor, subunit gamma 2 Mus musculus
3 Progesterone (5 mg/kg, twice daily) upregulates the expression of GABA(A)R delta subunits and enhances the tonic inhibition mediated by these receptors in dentate gyrus granule cells (DGGCs). Progesterone gamma-aminobutyric acid (GABA) A receptor, subunit gamma 2 Mus musculus
4 Neurosteroids can alter GABA(A)R expression on a rapid timescale, because GABA(A)R upregulation can be induced in brain slices maintained in vitro after a short (30 min) treatment with the neurosteroid 3alpha,5alpha-tetrahydrodeoxycorticosterone (THDOC) (100 nM). 5alpha-tetrahydrodeoxycorticosterone gamma-aminobutyric acid (GABA) A receptor, subunit gamma 2 Mus musculus
5 Neurosteroids can alter GABA(A)R expression on a rapid timescale, because GABA(A)R upregulation can be induced in brain slices maintained in vitro after a short (30 min) treatment with the neurosteroid 3alpha,5alpha-tetrahydrodeoxycorticosterone (THDOC) (100 nM). 5alpha-tetrahydrodeoxycorticosterone gamma-aminobutyric acid (GABA) A receptor, subunit gamma 2 Mus musculus
6 Neurosteroids can alter GABA(A)R expression on a rapid timescale, because GABA(A)R upregulation can be induced in brain slices maintained in vitro after a short (30 min) treatment with the neurosteroid 3alpha,5alpha-tetrahydrodeoxycorticosterone (THDOC) (100 nM). 5alpha-THDOC gamma-aminobutyric acid (GABA) A receptor, subunit gamma 2 Mus musculus
7 Neurosteroids can alter GABA(A)R expression on a rapid timescale, because GABA(A)R upregulation can be induced in brain slices maintained in vitro after a short (30 min) treatment with the neurosteroid 3alpha,5alpha-tetrahydrodeoxycorticosterone (THDOC) (100 nM). 5alpha-THDOC gamma-aminobutyric acid (GABA) A receptor, subunit gamma 2 Mus musculus
8 Consistent with these rapid alterations, acute stress, a condition known to quickly raise THDOC levels, within 30 min induces upregulation of GABA(A)R delta subunit expression and increase tonic inhibition in DGGCs. 5alpha-THDOC gamma-aminobutyric acid (GABA) A receptor, subunit gamma 2 Mus musculus