The Influence of Metabolic Syndrome and Sex on the DNA Methylome in Schizophrenia

Overview

Journal Int J Genomics

Publisher Wiley

Date 2018 Jun 1

PMID 29850476

Citations 8

Authors

Kyle J Burghardt

Jacyln M Goodrich

Brittany N Lines

Vicki L Ellingrod

Affiliations

Soon will be listed here.

Abstract

Introduction: The mechanism by which metabolic syndrome occurs in schizophrenia is not completely known; however, previous work suggests that changes in DNA methylation may be involved which is further influenced by sex. Within this study, the DNA methylome was profiled to identify altered methylation associated with metabolic syndrome in a schizophrenia population on atypical antipsychotics.

Methods: Peripheral blood from schizophrenia subjects was utilized for DNA methylation analyses. Discovery analyses ( = 96) were performed using an epigenome-wide analysis on the Illumina HumanMethylation450K BeadChip based on metabolic syndrome diagnosis. A secondary discovery analysis was conducted based on sex. The top hits from the discovery analyses were assessed in an additional validation set ( = 166) using site-specific methylation pyrosequencing.

Results: A significant increase in gene methylation in subjects with metabolic syndrome was identified in the overall sample. Additionally, differential methylation was found within the gene in females and the gene within males. Significant differences in methylation were again observed for the and genes, but not , in the validation sample set.

Conclusions: This study provides preliminary evidence that DNA methylation may be associated with metabolic syndrome and sex in schizophrenia.

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