Title : Steroid requirements for regulation of the alpha4 subunit of the GABA(A) receptor in an in vitro model.

Pub. Date : 2007 Jan 3

PMID : 17081691






3 Functional Relationships(s)
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1 The alpha4 subunit of the GABA(A) receptor (GABAR) has relatively low expression in the CNS, but is increased in vivo following 48 h administration of the GABA-modulatory steroid 3alpha-OH-5alpha[beta]-pregnan-20-one (THP or [allo]pregnanolone) to female rats. pirarubicin immunoglobulin binding protein 1 Homo sapiens
2 In undifferentiated IMR-32 cells, 48 h administration of THP increased alpha4 expression when ambient THP levels were reduced by the 5alpha-reductase blocker 4MA, suggesting that the background steroid milieu affects steroid regulation of this subunit. pirarubicin immunoglobulin binding protein 1 Homo sapiens
3 In the absence of NGF treatment, combined administration of 17beta-estradiol (E2) plus THP also increased alpha4 expression to a similar extent as THP following NGF treatment. pirarubicin immunoglobulin binding protein 1 Homo sapiens