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DNA methyltransferase 3A gene polymorphism contributes to daily life stress susceptibility

Authors Barliana MI, Amalya SN, Pradipta IS, Alfian SD, Kusuma ASW, Milanda T, Abdulah R

Received 24 September 2017

Accepted for publication 1 November 2017

Published 15 December 2017 Volume 2017:10 Pages 395—401


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Professor Igor Elman

Melisa I Barliana,1,2 Shintya N Amalya,1 Ivan S Pradipta,3 Sofa D Alfian,3 Arif SW Kusuma,1,2 Tiana Milanda,1,4 Rizky Abdulah3,4

1Department of Biological Pharmacy, Biotechnology Pharmacy Laboratory, 2Pharmacy Services Development Research Center, 3Department of Pharmacology and Clinical Pharmacy, Clinical Pharmacy Laboratory, 4Center for Drug Discovery and Product Development, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, West Java, Indonesia

Abstract: Daily life stress markedly affects the response toward stressful stimuli. DNA methy­lation is one of the factors that regulate this response, and is a normal mechanism of somatic cell growth, but its regulatory gene variations may cause alterations in the stress response. The aim of the present study was to investigate genotypic variants of the DNA methyltransferase 3A (DNMT3A) gene in 129 healthy subjects and evaluate its association with daily life stress. Blood samples were collected, and genomic DNA was isolated. DNA was amplified using specific tetra primers for DNMT3A (C/T) rs11683424 and visualized following 2% agarose gel electrophoresis. The association of DNMT3A genetic variants with daily life stress was analyzed using the Kessler Psychological Distress Scale (K10). We observed that the distribution of subjects with genotype CC (wild type), CT (heteromutant), and TT (homomutant) was 13.95%, 81.4%, and 4.65%, respectively. Genetic variations significantly affected the daily life stress condition (p=0.04) in Indonesian healthy subjects, but most of the subjects with the CT phenotype were classified in a stress condition.

Keywords: daily life stressor, DNA methylation, epigenetic, Kessler Psychological Distress Scale (K10), rs11683424, DNMT3A

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