http://www.cnr.it/ontology/cnr/individuo/prodotto/ID37796
Reducing effect of the positive allosteric modulators of the GABAB receptor, CGP7930 and GS39783, on alcohol intake in alcohol-preferring rats (Articolo in rivista)
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- Reducing effect of the positive allosteric modulators of the GABAB receptor, CGP7930 and GS39783, on alcohol intake in alcohol-preferring rats (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.ejphar.2005.10.005 (literal)
- Alternative label
Orrù A., Lai P., Lobina C., Maccioni P., Piras P., Scanu L., Froestl W., Gessa G.L., Carai M.A.M., Colombo G. (2005)
Reducing effect of the positive allosteric modulators of the GABAB receptor, CGP7930 and GS39783, on alcohol intake in alcohol-preferring rats
in European journal of pharmacology
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- Orrù A., Lai P., Lobina C., Maccioni P., Piras P., Scanu L., Froestl W., Gessa G.L., Carai M.A.M., Colombo G. (literal)
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- \"Bernard B. Brodie\" Department of Neuroscience, University of Cagliari, Cagliari, Italy; C.N.R. Institute of Neuroscience, Cagliari, Italy; Research Department, Novartis Pharma AG, CH-4002 Basel, Switzerland. (literal)
- Titolo
- Reducing effect of the positive allosteric modulators of the GABAB receptor, CGP7930 and GS39783, on alcohol intake in alcohol-preferring rats (literal)
- Abstract
- The gamma-aminobutyric acidB (GABAB) receptor full agonists, baclofen and CGP44532, have been found to suppress different aspects of alcohol drinking behavior, including acquisition and maintenance, in selectively bred Sardinian alcohol-preferring (sP) rats. The present study was designed to assess whether this capability extends to the recently synthesized, positive allosteric modulators of the GABAB receptor, 2,6-Di-tert-butyl-4-(3-hydroxy-2,2-dimethyl-propyl)-phenol (CGP7930) and N,N'-dicyclopentyl-2-methylsulfanyl-5-nitro-pyrimidine-4,6-diamine (GS39783). In the \"acquisition\" experiments, CGP7930 (0, 25, 50 and 100 mg/kg; i.g.) and GS39783 (0, 6.25, 12.5 and 25 mg/kg; i.g.) were administered for 5 consecutive days to alcohol-naive sP rats. In the \"maintenance\" experiments, (0, 50 and 100 mg/kg; i.g.) and GS39783 (0, 50 and 100 mg/kg; i.g.) were administered for 5 consecutive days to alcohol-experienced sP rats. Alcohol intake was evaluated under the standard, homecage 2-bottle \"alcohol (10%, v/v) vs water\" regimen with unlimited access for 24 h/day. Both CGP7930 and GS39783 dose-dependently suppressed the acquisition of alcohol drinking behavior. In the \"maintenance\" experiments, CGP7930 and GS39783 reduced daily alcohol intake by 30-40% only at the highest dose when compared to vehicle-treated rats; this effect tended to vanish on continuing treatment. The results of the present study suggest that positive allosteric modulation of the GABAB receptor produced an effect on alcohol drinking behavior similar to that produced by GABAB receptor full agonists. These data also suggest that positive allosteric modulation of the GABAB receptor may constitute a potential strategy for developing new drugs for treating alcohol dependence. (literal)
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