Multimodal brain imaging study of 19,825 participants reveals adverse effects of moderate drinking

Remi Daviet, Gökhan Aydogan, Kanchana Jagannathan, Nathaniel Spilka, Philipp Koellinger, Henry R Kranzler, Gideon Nave, Reagan Wetherill

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Received Date: 27th March 20

Alcohol consumption can have significant deleterious consequences, including brain atrophy, neuronal loss, poorer white matter fiber integrity, and cognitive decline, but the effects of light-to-moderate alcohol consumption on brain structure remain unclear. Here we examine the associations between alcohol intake and brain structure using structural, diffusion tensor, and neurite orientation dispersion and density imaging data from 19,825 generally healthy middle-aged and older adults from the UK Biobank. Systematically controlling for potential confounds, we found that greater alcohol consumption was associated with lower global gray and white matter volume, regional gray matter volume in cortical and subcortical areas, and white matter fiber integrity and complexity. Post hoc analyses revealed that these associations were non-linear. Our findings extensively characterize the associations between alcohol intake and gray and white matter macrostructure and microstructure. Consuming two or more units of alcohol per day, equivalent to one drink in some establishments, could have negative effects on brain health, an important public health finding.

Read in full at bioRxiv.

This is an abstract of a preprint hosted on an independent third party site. It has not been peer reviewed but is currently under consideration at Nature Communications.

Nature Communications

Nature Research, Springer Nature