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The lack of association of GABRA2 polymorphism and alcohol dependence in Croatian population

Švob Štrac, Dubravka; Nedić, Gordana; Nikolac, Matea; Nenadić Šviglin, Korona; Mustapić, Maja; Muck-Šeler, Dorotea; Pivac, Nela (2011) The lack of association of GABRA2 polymorphism and alcohol dependence in Croatian population. In: Osredkar, Damjan; Koritnik, Blaž; Pelko, Miha, (eds.) Book of abstracts/Sinapsa Neuroscience Conference 11. Ljubljana, Slovenia, Sinapsa, Slovenian Neuroscience Association, p. 149 .

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Gamma-aminobutyric acidA (GABAA) receptors, the major fast inhibitory neurotransmitter receptors in the brain, are implicated in the acute and chronic effects of alcohol including tolerance, dependence and withdrawal. Recent studies have suggested a linkage of alcohol dependence to the gene encoding GABAA receptor 2 subunit (GABRA2), on chromosome 4p. Therefore we examined the association of alcohol dependence to rs9291283 (hCV8262290) polymorphism, located in the intron 3 of GABRA2 gene, that has been previously reported to be implicated in alcoholism. This study enrolled 379 (303 male and 76 female) alcohol- dependent (diagnosis of alcoholism was made according to DSM-IV criteria) and 226 (198 male and 28 female) healthy subjects of the Croatian origin. Alcohol-dependent patients were further subdivided according to the early/late onset of alcohol drinking, as well as to the presence/absence of aggressive behavior. Genotyping was performed by using TaqMan Real-Time allelic discrimination technique after extraction of DNA from the whole blood with a salting out procedure. There were no significant differences in the distribution of genotypes or in the frequency of different allele carriers for tested polymorphism between alcohol-dependent and control individuals, as well as between different subsets of alcoholics. The results have not provided supporting evidence for the potential involvement of the rs9291283 (hCV8262290) GABRA2 polymorphism in the alcohol dependence. However, since these are preliminary results, further studies with enlarged groups should be conducted in order to find a possible association of investigated polymorphism and alcoholism in Croatian population.

Item Type: Conference or workshop item published in conference proceedings (UNSPECIFIED)
Uncontrolled Keywords: alcoholism; GABA-A receptor; GABRA2 gene; polymorphism; Croatian population
Subjects: BIOMEDICINE AND HEALTHCARE > Basic Medical Sciences
Divisions: Division of Molecular Medicine
Project titleProject leaderProject codeProject type
Stres, GABA-A receptori i mehanizmi djelovanja neuropsihofarmaka[258591] Dubravka Švob Štrac098-0000000-2448MZOS
Molekularna podloga i liječenje psihijatrijskih i stresom izazvanih poremećaja[113176] Nela Pivac098-0982522-2455MZOS
Farmakogenomika i proteomika serotoninskog i kateholaminskog sustava[32626] Dorotea Muck-Šeler098-0982522-2457MZOS
Depositing User: Dorotea Mueck Šeler
Date Deposited: 29 Sep 2014 12:02

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