Changes in the serum metabolite profile correlate with decreased brain gray matter volume in moderate-to-heavy drinking young adults
2019
Abstract Our aim was to analyse metabolite profile changes in serum associated with
moderate-to-heavy consumption of alcohol in
young adultsand to evaluate if these changes are connected to reduced brain
grey mattervolumes. Study population consisted of
young adultswith a ten-year history of
moderate-to-heavy alcohol consumption (n = 35) and light-drinking controls (n = 27). We used targeted
liquid chromatography mass spectrometrymethod to measure concentrations of metabolites in serum and 3.0 T
magnetic resonance imagingto assess
brain
grey mattervolumes. Alterations in amino acid and energy metabolism were observed in the
moderate-to-heavy drinking
young adultswhen compared to the controls. After correction for multiple testing, the group of
moderate-to-heavy drinking
young adultshad increased serum concentrations of 1-
methylhistamine(p = 0.001, d = 0.82) when compared to the controls. Furthermore, concentrations of 1-
methylhistamine(r = -0.48, p = 0.004) and creatine (r = -0.52, p = 0.001) were negatively correlated with the brain
grey mattervolumes in the females. Overall, our results show association between
moderate-to-heavy use of alcohol and altered metabolite profile in
young adultsas well as suggest that some of these changes could be associated with the reduced brain
grey mattervolume.
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