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Association of HLA locus alleles with posttraumatic stress disorder.

ABSTRACT: BACKGROUND:Immune dysregulation has been widely observed in those with posttraumatic stress disorder (PTSD). An individual's immune response is shaped, in part, by the highly polymorphic Human Leukocyte Antigen (HLA) locus that is associated with major psychiatric disorders such as schizophrenia, major depression and bipolar disorder. The aim of the current study was to investigate the association between common HLA alleles and PTSD. METHODS:Genome-wide association data was used to predict alleles of 7 classical polymorphic HLA genes (A, B, C, DRB1, DQA1, DQB1, DPB1) in 403 lifetime PTSD cases and 369 trauma exposed controls of African ancestry. Association of HLA allelic variations with lifetime PTSD was analyzed using logistic regression, controlling for ancestry, sex and multiple comparisons. The effect of HLA alleles on gene expression was assessed by weighted correlation network analysis (WGCNA), using 353 subjects with available expression data. Enrichment analysis was performed using anRichment to identify associated pathways of each module. RESULTS:HLA-B*58:01 (p?=?0.035), HLA-C*07:01 (p?=?0.035), HLA-DQA1*01:01 (p?=?0.003), HLA-DQB1*05:01 (p?=?0.009) and HLA-DPB1*17:01 (p?=?0.017) were more common in PTSD cases, while HLA-A*02:01 (p?=?0.026), HLA-DQA1*05:05 (p?=?0.011) and HLA-DRB1*11:01 (p?

SUBMITTER: Katrinli S

PROVIDER: S-EPMC6754776 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Association of HLA locus alleles with posttraumatic stress disorder.

Katrinli Seyma S Lori Adriana A Kilaru Varun V Carter Sierra S Powers Abigail A Gillespie Charles F CF Wingo Aliza P AP Michopoulos Vasiliki V Jovanovic Tanja T Ressler Kerry J KJ Smith Alicia K AK

Brain, behavior, and immunity 20190713

<h4>Background</h4>Immune dysregulation has been widely observed in those with posttraumatic stress disorder (PTSD). An individual's immune response is shaped, in part, by the highly polymorphic Human Leukocyte Antigen (HLA) locus that is associated with major psychiatric disorders such as schizophrenia, major depression and bipolar disorder. The aim of the current study was to investigate the association between common HLA alleles and PTSD.<h4>Methods</h4>Genome-wide association data was used t ...[more]

PMID: 31310798

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Project description:BackgroundAdverse mental health conditions including depression, posttraumatic stress disorder (PTSD), and anxiety are prevalent among patients who survive myocardial infarctions (MI) and are associated with adverse outcomes. The mechanisms underlying these associations, however, are not well understood. Inflammatory pathways may mediate the cardiovascular outcomes of patients with mental health disorders. We examined the bidirectional association between PTSD symptoms and inflammatory biomarkers in a young/middle-aged post MI population. We further examined how this association may differ between women and men as well as between Black and non-Black individuals.MethodsParticipants included individuals with early onset MI between the ages 25 and 60. Mental health scores for depression, PTSD, perceived stress, and anxiety as well as inflammatory biomarkers, interleukin-6 (IL-6) and high sensitivity C-reactive protein (hsCRP), were collected at baseline and at six-month follow up. We examined the bidirectional changes in mental health symptoms and inflammatory biomarkers between baseline and follow-up.ResultsAmong 244 patients in the study (mean age: 50.8, 48.4% female, 64.3% Black), the geometric means for IL-6 level and hsCRP at rest were 1.7 pg/mL and 2.76 mg/L, respectively. Mental health scores at baseline did not consistently predict changes in inflammatory biomarkers at follow-up. However, baseline levels of both IL-6 and hsCRP were robustly associated with an increase in re-experiencing PTSD symptoms at 6 months: in adjusted linear mixed models, there was a 1.58-point increase in re-experiencing PTSD symptoms per unit of baseline hsCRP (p = 0.01) and 2.59-point increase per unit of baseline IL-6 (p = 0.02). Once the analysis was stratified by race, the association was only noted in Black individuals. Baseline inflammation was not associated with change in any of the other mental health symptom scores.ConclusionMarkers of inflammation are associated with an increase in post-event PTSD symptoms in younger or middle-aged patients who experienced an MI, especially Black patients. These results suggest a mechanistic link between inflammation and the development of PTSD among individuals with cardiovascular disease.

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Association of HLA locus alleles with posttraumatic stress disorder.

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Association of HLA locus alleles with posttraumatic stress disorder.

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