Use of genetic analysis to test the potential role of serotonin in alcohol preference. |
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Authors: | R A Pickett A C Collins |
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Institution: | School of Pharmacy and Institute for Behavioral Genetics University of Colorado, Boulder, Colorado 80302, USA |
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Abstract: | The hypothesis that alcohol preference in mice is influenced by brain serotonin levels was tested using genetic analysis. Alcohol preference and static serotonin content were assessed in C57BL/Ibg (alcohol-preferring) and DBA/2 (alcohol-avoiding) mice, as well as in Fl and F2 generations obtained by crossbreeding. The two parental strains showed dissimilar alcohol preferences but identical concentrations of brain serotonin. Serotonin concentration segregated independently of alcohol preference in the F1 and F2 generations. These data provides strong evidence against the hypothesis that brain serotonin content influences alcohol preference. However, they do not preclude the possibility that differential alcohol influences on serotonin metabolism or turnover rate may result in differing preference for a alcohol. |
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