Candidate gene-environment interactions in substance abuse: A systematic review.

<h4>Background</h4>The abuse of psychogenic drugs can lead to multiple health-related problems. Genetic and environmental vulnerabilities are factors in the emergence of substance use disorders. Empirical evidence regarding the gene-environment interaction in substance use is mixed. Summ...

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Main Authors: Zheng Jiang, Zidong Chen, Xi Chen
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0287446
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author Zheng Jiang
Zidong Chen
Xi Chen
author_facet Zheng Jiang
Zidong Chen
Xi Chen
author_sort Zheng Jiang
collection DOAJ
description <h4>Background</h4>The abuse of psychogenic drugs can lead to multiple health-related problems. Genetic and environmental vulnerabilities are factors in the emergence of substance use disorders. Empirical evidence regarding the gene-environment interaction in substance use is mixed. Summaries of the latest findings from a candidate gene approach will be useful for revealing the significance of particular gene contributions. Thus, we aim to identify different gene-environment interactions in patterns of substance use and investigate whether any effects trend notably across different genders and races.<h4>Methods</h4>We reviewed published studies, until March 1, 2022, on substance use for candidate gene-environment interaction. Basic demographics of the included studies, target genes, environmental factors, main findings, patterns of gene-environment interaction, and other relevant information were collected and summarized.<h4>Results</h4>Among a total of 44 studies, 38 demonstrated at least one significant interaction effect. About 61.5% of studies on the 5-HTTLPR gene, 100% on the MAOA gene, 42.9% on the DRD2 gene, 50% on the DRD4 gene, 50% on the DAT gene, 80% on the CRHR1 gene, 100% on the OPRM1 gene, 100% on the GABRA1 gene, and 50% on the CHRNA gene had a significant gene-environment interaction effect. The diathesis-stress model represents a dominant interaction pattern (89.5%) in the studies with a significant interaction effect; the remaining significant effect on substance use is found in the differential susceptibility model. The social push and swing model were not reported in the included studies.<h4>Conclusion</h4>The gene-environment interaction research on substance use behavior is methodologically multidimensional, which causes difficulty in conducting pooled analysis, or stated differently-making it hard to identify single sources of significant influence over maladaptive patterns of drug taking. In decreasing the heterogeneity and facilitating future pooled analysis, researchers must (1) replicate the existing studies with consistent study designs and measures, (2) conduct power calculations to report gene-environment correlations, (3) control for covariates, and (4) generate theory-based hypotheses with factorial based experiments when designing future studies.
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spelling doaj.art-06a9adc7d9a542d6ad6ed24b621a0bea2023-11-07T05:34:10ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-011810e028744610.1371/journal.pone.0287446Candidate gene-environment interactions in substance abuse: A systematic review.Zheng JiangZidong ChenXi Chen<h4>Background</h4>The abuse of psychogenic drugs can lead to multiple health-related problems. Genetic and environmental vulnerabilities are factors in the emergence of substance use disorders. Empirical evidence regarding the gene-environment interaction in substance use is mixed. Summaries of the latest findings from a candidate gene approach will be useful for revealing the significance of particular gene contributions. Thus, we aim to identify different gene-environment interactions in patterns of substance use and investigate whether any effects trend notably across different genders and races.<h4>Methods</h4>We reviewed published studies, until March 1, 2022, on substance use for candidate gene-environment interaction. Basic demographics of the included studies, target genes, environmental factors, main findings, patterns of gene-environment interaction, and other relevant information were collected and summarized.<h4>Results</h4>Among a total of 44 studies, 38 demonstrated at least one significant interaction effect. About 61.5% of studies on the 5-HTTLPR gene, 100% on the MAOA gene, 42.9% on the DRD2 gene, 50% on the DRD4 gene, 50% on the DAT gene, 80% on the CRHR1 gene, 100% on the OPRM1 gene, 100% on the GABRA1 gene, and 50% on the CHRNA gene had a significant gene-environment interaction effect. The diathesis-stress model represents a dominant interaction pattern (89.5%) in the studies with a significant interaction effect; the remaining significant effect on substance use is found in the differential susceptibility model. The social push and swing model were not reported in the included studies.<h4>Conclusion</h4>The gene-environment interaction research on substance use behavior is methodologically multidimensional, which causes difficulty in conducting pooled analysis, or stated differently-making it hard to identify single sources of significant influence over maladaptive patterns of drug taking. In decreasing the heterogeneity and facilitating future pooled analysis, researchers must (1) replicate the existing studies with consistent study designs and measures, (2) conduct power calculations to report gene-environment correlations, (3) control for covariates, and (4) generate theory-based hypotheses with factorial based experiments when designing future studies.https://doi.org/10.1371/journal.pone.0287446
spellingShingle Zheng Jiang
Zidong Chen
Xi Chen
Candidate gene-environment interactions in substance abuse: A systematic review.
PLoS ONE
title Candidate gene-environment interactions in substance abuse: A systematic review.
title_full Candidate gene-environment interactions in substance abuse: A systematic review.
title_fullStr Candidate gene-environment interactions in substance abuse: A systematic review.
title_full_unstemmed Candidate gene-environment interactions in substance abuse: A systematic review.
title_short Candidate gene-environment interactions in substance abuse: A systematic review.
title_sort candidate gene environment interactions in substance abuse a systematic review
url https://doi.org/10.1371/journal.pone.0287446
work_keys_str_mv AT zhengjiang candidategeneenvironmentinteractionsinsubstanceabuseasystematicreview
AT zidongchen candidategeneenvironmentinteractionsinsubstanceabuseasystematicreview
AT xichen candidategeneenvironmentinteractionsinsubstanceabuseasystematicreview