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Abstracts of Presentations of the Twenty-Third Annual Meeting of The American Society of Primatologists

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 60 KB
Volume: 51
Category: Article
ISSN: 0275-2565
DOI: 10.1002/(sici)1098-2345(2000)51:1+<99::aid-ajp7>3.0.co;2-g

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✦ Synopsis

Our laboratory has previously shown that the initial response of rhesus macaques to alcohol is correlated with concentrations of the serotonin metabolite 5-hydroxyindoleacetic acid in cerebrospinal fluid . During this study, we increased the sample size to 88 (54 females, 34 males) differentially-reared, alcohol-naïve monkeys and performed further analyses. Consistent with earlier methodology, blood and CSF were sampled prior to the experiment. Each animal underwent two identical trials, beginning with intravenous administration of a 16.8% volume/volume ethanol solution (2.0 g/kg for females; 2.1 g/kg for males). After infusion, alcohol tolerance was rated according to behavioral measures such as falls and stumbles (i.e. the lower the intoxication, the greater the tolerance). Preliminary analyses demonstrated cohort and rearing effects, thus both factors were statistically controlled in all analyses. As with earlier findings, CSF 5-HIAA concentrations were negatively correlated with future alcohol consumption and inherent (trial 1) alcohol tolerance. In contrast, CSF 5-HIAA concentrations were not correlated with trial 2 tolerance. Lastly, the change in alcohol tolerance between the first and second trials was positively correlated with CSF 5-HIAA concentrations (i.e. subjects with higher CSF 5-HIAA showed a greater increase in tolerance between trials 1 and 2). These findings suggest CSF 5-HIAA concentration is a strong predictive measure not only for future alcohol consumption, but also for inherent alcohol tolerance and change in tolerance following initial exposure.

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