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Genome-wide DNA methylation analysis of heavy cannabis exposure in a New Zealand longitudinal cohort.


ABSTRACT: Cannabis use is of increasing public health interest globally. Here we examined the effect of heavy cannabis use, with and without tobacco, on genome-wide DNA methylation in a longitudinal birth cohort (Christchurch Health and Development Study, CHDS). A total of 48 heavy cannabis users were selected from the CHDS cohort, on the basis of their adult exposure to cannabis and tobacco, and DNA methylation assessed from whole blood samples, collected at approximately age 28. Methylation in heavy cannabis users was assessed, relative to non-users (n?=?48 controls) via the Illumina Infinium® MethylationEPIC BeadChip. We found the most differentially methylated sites in cannabis with tobacco users were in the AHRR and F2RL3 genes, replicating previous studies on the effects of tobacco. Cannabis-only users had no evidence of differential methylation in these genes, or at any other loci at the epigenome-wide significance level (P?-7). However, there were 521 sites differentially methylated at P?

SUBMITTER: Osborne AJ 

PROVIDER: S-EPMC7176736 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Genome-wide DNA methylation analysis of heavy cannabis exposure in a New Zealand longitudinal cohort.

Osborne Amy J AJ   Pearson John F JF   Noble Alexandra J AJ   Gemmell Neil J NJ   Horwood L John LJ   Boden Joseph M JM   Benton Miles C MC   Macartney-Coxson Donia P DP   Kennedy Martin A MA  

Translational psychiatry 20200422 1


Cannabis use is of increasing public health interest globally. Here we examined the effect of heavy cannabis use, with and without tobacco, on genome-wide DNA methylation in a longitudinal birth cohort (Christchurch Health and Development Study, CHDS). A total of 48 heavy cannabis users were selected from the CHDS cohort, on the basis of their adult exposure to cannabis and tobacco, and DNA methylation assessed from whole blood samples, collected at approximately age 28. Methylation in heavy can  ...[more]

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