PMID- 7159469 OWN - NLM STAT- MEDLINE DCOM- 19830311 LR - 20190623 IS - 0006-2952 (Print) IS - 0006-2952 (Linking) VI - 31 IP - 23 DP - 1982 Dec 1 TI - Studies on the relation of gamma-hydroxybutyric acid (GHB) to gamma-aminobutyric acid (GABA). Evidence that GABA is not the sole source for GHB in rat brain. PG - 3917-23 AB - The effects of gamma-aminobutyric acid (GABA)-alpha-oxoglutarate aminotransferase (GABA-T) inhibitors, L-glutamic acid decarboxylase (GAD) inhibitors, and antipetit mal anticonvulsants on gamma-hydroxybutyric acid (GHB) and GABA were studied. Treatment with anticonvulsants and GABA-T inhibitors resulted in an increase in steady-state brain levels of both GHB and GABA. GAD inhibitors produced markedly decreased levels of brain GABA but no change in GHB concentrations. Studies of GHB derived exclusively from GABA showed that GABA-T inhibitors which produced an elevation of steady-state levels of GHB in brain also resulted in a decrease in GABA-derived GHB. Intracerebroventricular (i.c.v.) administration of GABA, putrescine, and 1,4-butanediol all produced significant elevations in brain GHB, but GABA-T inhibitors blocked this effect of GABA and putrescine. These data suggest that there may be another source for GHB in brain in addition to GABA and raise the possibility that 1,4-butanediol may be that source. FAU - Snead, O C 3rd AU - Snead OC 3rd FAU - Liu, C C AU - Liu CC FAU - Bearden, L J AU - Bearden LJ LA - eng GR - K07 NS 00484-02/NS/NINDS NIH HHS/United States GR - R01 NS 17117-01/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - England TA - Biochem Pharmacol JT - Biochemical pharmacology JID - 0101032 RN - 0 (Hydroxybutyrates) RN - 56-12-2 (gamma-Aminobutyric Acid) RN - 7G33012534 (Sodium Oxybate) RN - EC 2.6.1.19 (4-Aminobutyrate Transaminase) RN - V10TVZ52E4 (Putrescine) SB - IM MH - 4-Aminobutyrate Transaminase/metabolism MH - Animals MH - Biotransformation MH - Brain/*metabolism MH - Cerebellum/metabolism MH - Hydroxybutyrates/*biosynthesis MH - Male MH - Putrescine/metabolism MH - Rats MH - Rats, Inbred Strains MH - Sodium Oxybate/*biosynthesis MH - gamma-Aminobutyric Acid/*metabolism EDAT- 1982/12/01 00:00 MHDA- 1982/12/01 00:01 CRDT- 1982/12/01 00:00 PHST- 1982/12/01 00:00 [pubmed] PHST- 1982/12/01 00:01 [medline] PHST- 1982/12/01 00:00 [entrez] AID - 0006-2952(82)90310-0 [pii] AID - 10.1016/0006-2952(82)90310-0 [doi] PST - ppublish SO - Biochem Pharmacol. 1982 Dec 1;31(23):3917-23. doi: 10.1016/0006-2952(82)90310-0.