@article{ref1,
title="Investigating the role of early childhood abuse and HPA axis genes in suicide attempters with bipolar disorder",
journal="Psychiatric genetics",
year="2015",
author="Breen, Marie E. and Seifuddin, Fayaz and Zandi, Peter P. and Potash, James B. and Willour, Virginia L.",
volume="25",
number="3",
pages="106-111",
abstract="OBJECTIVE: Genes and the environment both play a major role in the risk for attempted suicide, and environments harboring stressors, such as early childhood abuse, have been linked to suicidal behavior. Such environments also disrupt the hypothalamic-pituitary-adrenal (HPA) axis pathway, which has been hypothesized to play a role in suicidal behavior. We investigated whether the risk for attempted suicide was attributable in part to the interaction between childhood physical and/or sexual abuse and genetic variation in 19 genes (±5 kb) integral to the HPA axis pathway. <br><br>MATERIALS AND METHODS: Using the Genetic Association Information Network Bipolar Disorder and Translational Genomics Research Institute cohorts, we implemented PLINK's logistic regression-based 'interaction' approach to search for evidence of an interaction between 235 genotyped HPA axis single-nucleotide polymorphisms and early childhood abuse. Our study included 631 bipolar disorder suicide attempters and 657 bipolar disorder nonattempters with information on abuse. <br><br>RESULTS: After correction for multiple testing, no significant interaction between the 235 HPA axis single-nucleotide polymorphisms and early childhood abuse was found. In our study, the strongest interaction was found with rs2664008 in the corticotropin-releasing hormone receptor 1 (CRHR1) gene, with a nominal interaction P-value of 1.22×10 and an interaction odds ratio of 0.47. <br><br>CONCLUSION: Our findings suggest that further work and larger sample sizes are required to elucidate the link between early childhood abuse and the HPA axis in suicidal behavior.<p /> <p>Language: en</p>",
language="en",
issn="0955-8829",
doi="10.1097/YPG.0000000000000082",
url="http://dx.doi.org/10.1097/YPG.0000000000000082"
}