PMID- 25479464 OWN - NLM STAT- MEDLINE DCOM- 20150820 LR - 20151119 IS - 1873-7064 (Electronic) IS - 0028-3908 (Linking) VI - 90 DP - 2015 Mar TI - Lack of GABAB receptors modifies behavioural and biochemical alterations induced by precipitated nicotine withdrawal. PG - 90-101 LID - S0028-3908(14)00429-8 [pii] LID - 10.1016/j.neuropharm.2014.11.013 [doi] AB - The nicotine (NIC) withdrawal syndrome is considered to be a major cause of the high relapse rate among individuals undergoing smoking cessation. The aim of the present study was to evaluate a possible role of GABAB receptors in NIC withdrawal, by comparing GABAB1 knockout mice and their wild-type littermates. We analysed the time course of the global withdrawal score, the anxiety-like effects, monoamine concentrations, the brain-derived neurotrophic factor (BDNF) expression, the corticosterone plasmatic levels and [(3)H]epibatidine binding sites during NIC withdrawal precipitated by mecamylamine, a nicotinic receptor antagonist (MEC). In NIC withdrawn wild-type mice, we observed a global withdrawal score, an anxiety-like effect in the elevated plus maze, a decrease of the striatal dopamine and 3,4-dihydroxyphenylacetic acid concentrations, an increase of corticosterone plasma levels, a reduction of BDNF expression in several brain areas and an increase of [(3)H]epibatidine binding sites in specific brain regions. Interestingly, the effects found in NIC withdrawn wild-type mice were absent in GABAB1 knockout mice, suggesting that GABAB1 subunit of the GABAB receptor is involved in the regulation of the behavioural and biochemical alterations induced by NIC withdrawal in mice. These results reveal an interaction between the GABAB receptors and the neurochemical systems through which NIC exerts its long-term effects. CI - Copyright (c) 2014 Elsevier Ltd. All rights reserved. FAU - Varani, Andres P AU - Varani AP AD - Instituto de Investigaciones Farmacologicas (CONICET), Junin 956, 5 degrees Piso, Buenos Aires C1113AAD, Argentina. FAU - Pedron, Valeria T AU - Pedron VT AD - Instituto de Investigaciones Farmacologicas (CONICET), Junin 956, 5 degrees Piso, Buenos Aires C1113AAD, Argentina. FAU - Machado, Lirane Moutinho AU - Machado LM AD - Instituto de Investigaciones Farmacologicas (CONICET), Junin 956, 5 degrees Piso, Buenos Aires C1113AAD, Argentina. FAU - Antonelli, Marta C AU - Antonelli MC AD - Instituto de Quimica y Fisicoquimica Biologicas (UBA-CONICET), Facultad de Farmacia y Bioquimica, Universidad de Buenos Aires, Buenos Aires, Argentina. FAU - Bettler, Bernhard AU - Bettler B AD - Department of Biomedicine, Institute of Physiology, Pharmazentrum, University of Basel, Klingelbergstrasse 50/70, CH-4056 Basel, Switzerland. FAU - Balerio, Graciela N AU - Balerio GN AD - Instituto de Investigaciones Farmacologicas (CONICET), Junin 956, 5 degrees Piso, Buenos Aires C1113AAD, Argentina; Catedra de Farmacologia, Facultad de Farmacia y Bioquimica, Universidad de Buenos Aires, Junin 956, 5 degrees Piso, Buenos Aires C1113AAD, Argentina. Electronic address: gbalerio@ffyb.uba.ar. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141203 PL - England TA - Neuropharmacology JT - Neuropharmacology JID - 0236217 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Gabrb1 protein, mouse) RN - 0 (Nicotinic Agonists) RN - 0 (Nicotinic Antagonists) RN - 0 (Receptors, GABA-A) RN - 0 (Receptors, Nicotinic) RN - 6EE945D3OK (Mecamylamine) RN - 6M3C89ZY6R (Nicotine) RN - W980KJ009P (Corticosterone) SB - IM MH - Animals MH - Anxiety/physiopathology MH - Brain/drug effects/physiopathology MH - Brain-Derived Neurotrophic Factor/metabolism MH - Corticosterone/blood MH - Disease Models, Animal MH - Male MH - Mecamylamine/pharmacology MH - Mice, Inbred BALB C MH - Mice, Knockout MH - Nicotine/pharmacology MH - Nicotinic Agonists/pharmacology MH - Nicotinic Antagonists/pharmacology MH - Receptors, GABA-A/*deficiency/genetics MH - Receptors, Nicotinic/metabolism MH - Substance Withdrawal Syndrome/*physiopathology MH - Tobacco Use Disorder/drug therapy/*physiopathology OTO - NOTNLM OT - Anxiety OT - BDNF OT - Corticosterone OT - Epibatidine OT - GABA(B) receptor OT - Mice OT - Monoamines OT - Nicotine OT - Withdrawal EDAT- 2014/12/06 06:00 MHDA- 2015/08/21 06:00 CRDT- 2014/12/06 06:00 PHST- 2014/07/18 00:00 [received] PHST- 2014/11/19 00:00 [revised] PHST- 2014/11/22 00:00 [accepted] PHST- 2014/12/06 06:00 [entrez] PHST- 2014/12/06 06:00 [pubmed] PHST- 2015/08/21 06:00 [medline] AID - S0028-3908(14)00429-8 [pii] AID - 10.1016/j.neuropharm.2014.11.013 [doi] PST - ppublish SO - Neuropharmacology. 2015 Mar;90:90-101. doi: 10.1016/j.neuropharm.2014.11.013. Epub 2014 Dec 3.