Adiponectin gene polymorphisms and posttraumatic stress disorder symptoms among female rape survivors: an exploratory study

Background: Rape is a common traumatic event which may result in the development of posttraumatic stress disorder (PTSD), yet few studies have investigated risk biomarkers in sexually traumatised individuals. Adiponectin is a novel cytokine within inflammatory and cardiometabolic pathways with evide...

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Main Authors: Eileen Vuong, Sian Megan Hemmings, Shibe Mhlongo, Esnat Chirwa, Carl Lombard, Nasheeta Peer, Naeemah Abrahams, Soraya Seedat
Format: Article
Language:English
Published: Taylor & Francis Group 2022-12-01
Series:European Journal of Psychotraumatology
Subjects:
Online Access:http://dx.doi.org/10.1080/20008066.2022.2107820
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author Eileen Vuong
Sian Megan Hemmings
Shibe Mhlongo
Esnat Chirwa
Carl Lombard
Nasheeta Peer
Naeemah Abrahams
Soraya Seedat
author_facet Eileen Vuong
Sian Megan Hemmings
Shibe Mhlongo
Esnat Chirwa
Carl Lombard
Nasheeta Peer
Naeemah Abrahams
Soraya Seedat
author_sort Eileen Vuong
collection DOAJ
description Background: Rape is a common traumatic event which may result in the development of posttraumatic stress disorder (PTSD), yet few studies have investigated risk biomarkers in sexually traumatised individuals. Adiponectin is a novel cytokine within inflammatory and cardiometabolic pathways with evidence of involvement in PTSD. Objective: This prospective exploratory study in a sample of female rape survivors investigated the association of single nucleotide polymorphisms (SNPs) in the adiponectin gene (ADIPOQ) and posttraumatic stress symptom (PTSS) severity, and the interaction of these SNPs of interest with childhood trauma in modifying the association with PTSS severity. Method: The study involved 455 rape-exposed black South African women (mean age (SD), 25.3 years (±5.5)) recruited within 20 days of being raped. PTSS was assessed using the Davidson Trauma Scale (DTS) and childhood trauma was assessed using a modified version of the Childhood Trauma Scale-Short Form Questionnaire. Eight ADIPOQ SNPs (rs17300539, rs16861194, rs16861205, rs2241766, rs6444174, rs822395, rs1501299, rs1403697) were genotyped using KASP. Mixed linear regression models were used to test additive associations of ADIPOQ SNPs and PTSS severity at baseline, 3 and 6 months following rape. Results: The mean DTS score post-sexual assault was high (71.3 ± 31.5), with a decrease in PTSS severity shown over time for all genotypes. rs6444174TT genotype was inversely associated with baseline PTSS in the unadjusted model (β = −13.6, 95% CI [−25.1; −2.1], p = .021). However, no genotype was shown to be significantly associated with change in PTSS severity over time and therefore ADIPOQ SNP x childhood trauma interaction was not further investigated. Conclusion: None of the ADIPOQ SNPs selected for investigation in this population were shown to be associated with change in PTSS severity over a 6-month period and therefore their clinical utility as risk biomarkers for rape-related PTSD appears limited. These SNPs should be further investigated in possible gene-gene and gene-environment interactions.
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spelling doaj.art-f4feba0eae664b0f984a36501f8050502023-02-06T14:17:44ZengTaylor & Francis GroupEuropean Journal of Psychotraumatology2000-80662022-12-0113210.1080/20008066.2022.21078202107820Adiponectin gene polymorphisms and posttraumatic stress disorder symptoms among female rape survivors: an exploratory studyEileen Vuong0Sian Megan Hemmings1Shibe Mhlongo2Esnat Chirwa3Carl Lombard4Nasheeta Peer5Naeemah Abrahams6Soraya Seedat7Stellenbosch UniversityStellenbosch UniversitySouth African Medical Research CouncilSouth African Medical Research CouncilSouth African Medical Research CouncilSouth African Medical Research CouncilSouth African Medical Research CouncilStellenbosch UniversityBackground: Rape is a common traumatic event which may result in the development of posttraumatic stress disorder (PTSD), yet few studies have investigated risk biomarkers in sexually traumatised individuals. Adiponectin is a novel cytokine within inflammatory and cardiometabolic pathways with evidence of involvement in PTSD. Objective: This prospective exploratory study in a sample of female rape survivors investigated the association of single nucleotide polymorphisms (SNPs) in the adiponectin gene (ADIPOQ) and posttraumatic stress symptom (PTSS) severity, and the interaction of these SNPs of interest with childhood trauma in modifying the association with PTSS severity. Method: The study involved 455 rape-exposed black South African women (mean age (SD), 25.3 years (±5.5)) recruited within 20 days of being raped. PTSS was assessed using the Davidson Trauma Scale (DTS) and childhood trauma was assessed using a modified version of the Childhood Trauma Scale-Short Form Questionnaire. Eight ADIPOQ SNPs (rs17300539, rs16861194, rs16861205, rs2241766, rs6444174, rs822395, rs1501299, rs1403697) were genotyped using KASP. Mixed linear regression models were used to test additive associations of ADIPOQ SNPs and PTSS severity at baseline, 3 and 6 months following rape. Results: The mean DTS score post-sexual assault was high (71.3 ± 31.5), with a decrease in PTSS severity shown over time for all genotypes. rs6444174TT genotype was inversely associated with baseline PTSS in the unadjusted model (β = −13.6, 95% CI [−25.1; −2.1], p = .021). However, no genotype was shown to be significantly associated with change in PTSS severity over time and therefore ADIPOQ SNP x childhood trauma interaction was not further investigated. Conclusion: None of the ADIPOQ SNPs selected for investigation in this population were shown to be associated with change in PTSS severity over a 6-month period and therefore their clinical utility as risk biomarkers for rape-related PTSD appears limited. These SNPs should be further investigated in possible gene-gene and gene-environment interactions.http://dx.doi.org/10.1080/20008066.2022.2107820adiponectin geneposttraumatic stress disorderrapetraumabiomarker
spellingShingle Eileen Vuong
Sian Megan Hemmings
Shibe Mhlongo
Esnat Chirwa
Carl Lombard
Nasheeta Peer
Naeemah Abrahams
Soraya Seedat
Adiponectin gene polymorphisms and posttraumatic stress disorder symptoms among female rape survivors: an exploratory study
European Journal of Psychotraumatology
adiponectin gene
posttraumatic stress disorder
rape
trauma
biomarker
title Adiponectin gene polymorphisms and posttraumatic stress disorder symptoms among female rape survivors: an exploratory study
title_full Adiponectin gene polymorphisms and posttraumatic stress disorder symptoms among female rape survivors: an exploratory study
title_fullStr Adiponectin gene polymorphisms and posttraumatic stress disorder symptoms among female rape survivors: an exploratory study
title_full_unstemmed Adiponectin gene polymorphisms and posttraumatic stress disorder symptoms among female rape survivors: an exploratory study
title_short Adiponectin gene polymorphisms and posttraumatic stress disorder symptoms among female rape survivors: an exploratory study
title_sort adiponectin gene polymorphisms and posttraumatic stress disorder symptoms among female rape survivors an exploratory study
topic adiponectin gene
posttraumatic stress disorder
rape
trauma
biomarker
url http://dx.doi.org/10.1080/20008066.2022.2107820
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