PMID- 2062900 OWN - NLM STAT- MEDLINE DCOM- 19910808 LR - 20190712 IS - 0031-9384 (Print) IS - 0031-9384 (Linking) VI - 49 IP - 2 DP - 1991 Feb TI - Effect of glucoprivation on glutamate decarboxylase activity in the ventromedial nucleus. PG - 295-9 AB - Activity of the GABA-synthesizing enzyme, glutamate decarboxylase (GAD), was measured in brain areas involved in glucoregulation 60 min after a glucoprivie challenge. The rate of GAD activity in the ventromedial nucleus of the hypothalamus (VMN) increased in a dose-dependent manner in response to intraperitoneal injection of 2-deoxy-D-glucose (2-DG). The increase in VMN GAD activity was significantly correlated with an increase in food intake (r2 = .77, p less than 0.01). The increase in VMN GAD activity was not due to the higher food intake since rats receiving 2-DG and denied access to food also had elevated rates of VMN GAD activity. VMN GAD activity was increased 28% and 32% after intracerebroventricular injection of 2-DG or 5-thioglucose, respectively. The rates of GAD activity in the lateral hypothalamus and area postrema were not affected by either peripherally or centrally administered 2-DG. The increase in VMN GAD activity after glucoprivation may be involved in the regulation of blood glucose by influencing food intake. FAU - Beverly, J L AU - Beverly JL AD - Department of Physiological Sciences, School of Veterinary Medicine, University of California, Davis, CA 95616. FAU - Martin, R J AU - Martin RJ LA - eng GR - DK 07355/DK/NIDDK NIH HHS/United States GR - HD 22226/HD/NICHD NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Physiol Behav JT - Physiology & behavior JID - 0151504 RN - 0 (Blood Glucose) RN - 56-12-2 (gamma-Aminobutyric Acid) RN - EC 4.1.1.15 (Glutamate Decarboxylase) SB - IM MH - Animals MH - Blood Glucose/*metabolism MH - Brain Mapping MH - Eating/physiology MH - Energy Metabolism/physiology MH - Glutamate Decarboxylase/*physiology MH - Homeostasis/physiology MH - Hypothalamic Area, Lateral/*physiology MH - Male MH - Rats MH - Rats, Inbred Strains MH - Ventromedial Hypothalamic Nucleus/*physiology MH - gamma-Aminobutyric Acid/*biosynthesis EDAT- 1991/02/01 00:00 MHDA- 1991/02/01 00:01 CRDT- 1991/02/01 00:00 PHST- 1991/02/01 00:00 [pubmed] PHST- 1991/02/01 00:01 [medline] PHST- 1991/02/01 00:00 [entrez] AID - 0031-9384(91)90046-Q [pii] AID - 10.1016/0031-9384(91)90046-q [doi] PST - ppublish SO - Physiol Behav. 1991 Feb;49(2):295-9. doi: 10.1016/0031-9384(91)90046-q.