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Hu XZ, Ursano RJ, Benedek D, Li X, Zhang L. Association of 5-HTTLPR With Post-Traumatic Stress Disorder in US Service Members. CHRONIC STRESS (THOUSAND OAKS, CALIF.) 2024; 8:24705470241245497. [PMID: 38682050 PMCID: PMC11055429 DOI: 10.1177/24705470241245497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/21/2024] [Indexed: 05/01/2024]
Abstract
Objective Post-traumatic stress disorder (PTSD) is a mental disorder that manifests after exposure to a stressful traumatic event, such as combat experience. Accumulated evidence indicates an important genetic influence in the development of PTSD. The serotonin transporter (5-HTT) gene has been identified as a candidate for PTSD and a polymorphism of the serotonin transporter-linked promoter region (5-HTTLPR) is associated with the disorder in the general population. However, whether it is associated with PTSD in active military service members has not been investigated. This study aimed to investigate the relationship between 5-HTTLPR and PTSD in service members. Methods Leucocyte genomic DNA was extracted from service members, including those with PTSD (n = 134) or without PTSD (n = 639). The 5-HTTLPR polymorphism was detected by means of 2 stages of TaqMan fluorescent PCR assay. PTSD symptoms and symptom severity were assessed using the PTSD Checklist (PCL), a 17-item, DSM-based, self-report questionnaire with well-established validity and reliability. PTSD was determined based on endorsement of DSM-IV criteria and a PCL total score ≥ 44. Results Significant differences in biallele distribution were observed between PTSD and controls (χ2 = 7.497, P = .024). The frequency of SS, SL, and LL genotypes in the PTSD group was 0.17, 0.56, and 0.27 respectively, compared to the frequencies of 0.27, 0.43, and 0.29 in non-PTSD controls. Carriers of the L allele had higher scores for reexperiencing and arousal symptoms on the PCL, compared to SS homozygote carriers (P < .05). The triallele genotypes showed no significant differences in distribution between the PTSD and control groups (P > .05) and no relationship with PTSD symptom severity. The interaction of triallelic genotypes of 5-HTTLPR and traumatic life events was associated with re-experiencing, avoidance, and arousal (P < .05 for all). Multiple regression analysis revealed significant correlations between both biallelic and triallelic genotypes of 5-HTTLPR, the interaction of the number of stressful lifetime events, and 5-HTTLPR genotypes with PCL total score (P < .001). Conclusion Our findings suggested that 5-HTT might play a minor role in PTSD, and the interaction between 5-HTTLPR and the environment had effects on PCL score, complementing and emphasizing 5-HTT for PTSD, especially in the military population.
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Affiliation(s)
- Xian-Zhang Hu
- Center for the Study of Traumatic Stress, Department of Psychiatry, USUHS, Bethesda, MD, USA
- Henry M Jackson Foundation for the Advancement of Military Medicine
| | - Robert J. Ursano
- Center for the Study of Traumatic Stress, Department of Psychiatry, USUHS, Bethesda, MD, USA
| | - David Benedek
- Center for the Study of Traumatic Stress, Department of Psychiatry, USUHS, Bethesda, MD, USA
| | - Xiaoxia Li
- Center for the Study of Traumatic Stress, Department of Psychiatry, USUHS, Bethesda, MD, USA
- Henry M Jackson Foundation for the Advancement of Military Medicine
| | | | - Lei Zhang
- Center for the Study of Traumatic Stress, Department of Psychiatry, USUHS, Bethesda, MD, USA
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Niu YM, Zhang J, Tang H, Cao LH, Jiang TY, Hu YY. Association between DRD2/ANKK1 rs1800497 C > T polymorphism and post-traumatic stress disorder susceptibility: a multivariate meta-analysis. Front Neurosci 2023; 17:1102573. [PMID: 37274216 PMCID: PMC10232825 DOI: 10.3389/fnins.2023.1102573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 03/10/2023] [Indexed: 06/06/2023] Open
Abstract
Background Previous studies have suggested that the DRD2/ANKK1 rs1800497 C > T polymorphism plays a critical role in the risk of post-traumatic stress disorder (PTSD). However, published data are inconsistent or even contradictory. Therefore, we conducted a meta-analysis to explore the underlying correlation between the rs1800497 C > T polymorphism and PTSD risk. Materials and methods A total of five online databases were searched, and all related studies were reviewed up to 1 October 2022. Critical information was extracted, and quality assessment was conducted for all included studies. Multivariate meta-analyses were performed for the genetic model choice, and the odds ratios (ORs) and corresponding 95% confidence intervals (CIs) were calculated to examine the statistical power of the genetic models. In addition, heterogeneity, sensitivity, cumulative analysis, and publication bias were analyzed to guarantee statistical power. Result Overall, 12 observational studies involving 5,515 subjects were included and analyzed in this meta-analysis. Multivariate analysis indicated that a co-dominant genetic model was most likely the best choice. Pooled results revealed an elevated PTSD risk in mutated homozygote TT carriers in the general population (TT vs. CC: OR = 1.73, 95% CI = 1.14-2.62, P = 0.01, I2 = 58.9%) and other specific subgroups. Moreover, similar results were observed in other genetic models using univariate analysis. Conclusion Current evidence suggests that the DRD2/ANKK1 rs1800497 C > T polymorphism may contribute to PTSD susceptibility.
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Affiliation(s)
- Yu-Ming Niu
- Department of Stomatology and Center for Evidence-Based Medicine and Clinical Research, Gongli Hospital of Shanghai Pudong New Area, Shanghai, China
- Department of Psychiatry and Joint Laboratory of Psychiatric Genetic Research, The Third People's Hospital of Zhongshan, Zhongshan, Guangdong Province, China
- Department of Psychiatry, Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - Jie Zhang
- Department of Psychiatry and Joint Laboratory of Psychiatric Genetic Research, The Third People's Hospital of Zhongshan, Zhongshan, Guangdong Province, China
- Department of Psychiatry, Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - Hong Tang
- Department of Psychiatry, Gannan Medical University, Ganzhou, Jiangxi Province, China
| | - Lu-Hua Cao
- Information Department, Gongli Hospital of Shanghai Pudong New Area, Shanghai, China
| | - Ting-Yun Jiang
- Department of Psychiatry and Joint Laboratory of Psychiatric Genetic Research, The Third People's Hospital of Zhongshan, Zhongshan, Guangdong Province, China
| | - Yuan-Yuan Hu
- Department of Stomatology and Center for Evidence-Based Medicine and Clinical Research, Gongli Hospital of Shanghai Pudong New Area, Shanghai, China
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Assessment of genetic variants in D2 dopamine receptor (DRD2) gene as risk factors for post-traumatic stress disorder (PTSD) and major depressive disorder (MDD): A systematic review and meta-analysis. J Affect Disord 2023; 328:312-323. [PMID: 36740143 DOI: 10.1016/j.jad.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 01/29/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023]
Abstract
BACKGROUND Many studies have performed assessments of genetic variants in the D2 dopamine receptor (DRD2) gene as risk factors for post-traumatic stress disorder (PTSD) and major depressive disorder (MDD). However, the results are inconsistent. This meta-analysis aimed to systematically summarize published data to evaluate the reliable association between the DRD2 genetic variants and the risk of PTSD and MDD. METHODS A systematic literature search was conducted using the Web of Science, PubMed, Google Scholar, Excerpta Medica Database (EMBASE), Springer, ScienceDirect, Wiley Online Library, Cochrane Central Register of Controlled Trials, Chinese Biomedical Literature Database (CBM), WANFANG Data, CQVIP, and Chinese National Knowledge Infrastructure (CNKI) databases before January 1st, 2022. RESULTS A total of 27 genetic variants in the DRD2 gene were retrieved, and 7 of them met the inclusion criteria for meta-analysis. Our meta-analysis results indicated that the rs1800497 (TaqIA) polymorphism was significantly associated with the increased risk of PTSD (Dominant model (A1A1 + A1A2 vs. A2A2): OR = 1.49, 95 % CI, 1.08-2.04 Z = 2.46, P = 0.014). Subgroup analysis for ethnicity suggested that a significantly increased risk of PTSD was observed in Asians (Dominant model (A1A1 + A1A2 vs. A2A2): OR = 1.39, 95 % CI, 1.08-1.79, Z = 2.60, P = 0.009) and Caucasians (Dominant model (A1A1 + A1A2 vs. A2A2): OR = 1.87, 95 % CI 1.02-3.41, Z = 2.04, P = 0.042). Meanwhile, we detected significant association strengths between the rs1799978 and rs2075652 polymorphisms in the DRD2 gene and MDD (for rs1799978, Homozygote comparison (GG vs. AA): OR = 0.60, 95 % CI = 0.37-0.97, Z = 2.08, P = 0.038; for rs2075652, Homozygote comparison (AA vs. GG): OR = 1.82, 95 % CI = 1.32-2.50, Z = 3.67, P < 0.001). Our cumulative meta-analyses indicated a continuous trend toward association strength with PTSD and MDD. CONCLUSIONS This meta-analysis indicated that genetic variants in the DRD2 gene might potentially contribute to genetic susceptibility for PTSD and MDD. The utilization of DRD2 genetic variants as risk factors for PTSD and MDD requires further validation by large well-designed case-control studies.
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Wu M, Lin L, Wu Y, Zheng Y, Chen H. Correlation between 5-HTTLPR gene polymorphism and cognitive function of traumatic stress in Chinese Han children. Transl Pediatr 2022; 11:1251-1260. [PMID: 35958016 PMCID: PMC9360820 DOI: 10.21037/tp-22-289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 07/13/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Post-traumatic stress disorder (PTSD) is a trauma-related psychological disorder with serious social and familial impacts. The involvement of 5-hydroxytryptamine transporter gene-linked polymorphic region (5-HTTLPR) in numerous mental disorders has been documented. This study explored the correlation between 5-HTTLPR gene polymorphism and cognitive function in Chinese Han children with PTSD. METHODS A total of 60 PTSD children treated from December 2019 to December 2021 were selected as study participants, with another 60 healthy children selected as controls. We assessed the cognitive function of participants using the Mini-Mental State Examination (MMSE). Additionally, the PTSD level was estimated by the Children's Revised Impact of Event Scale (CRIES). The 5-HTTLPR gene polymorphism was detected by reverse transcription quantitative polymerase chain reaction (RT-qPCR). The genotype and allele frequency were evaluated via case-control association analysis. RESULTS Children in the PTSD group showed low MMSE scores and high CRIES scores. In terms of genotype, cases of LL, LS, and SS in PTSD children were 4 (6.67%), 20 (33.3%), and 36 (60.00%), and 18 (30.00%), 28 (46.67%), and 14 (23.33%) cases in healthy controls. In terms of allele gene frequency, incidences of L and S were 23.33% and 76.67% in PTSD children, respectively, and were 53.33% and 46.67% in healthy controls, respectively. Moreover, the CRIES and MMSE scores of LS and SS genotypes were evidently different from those of LL genotype in PTSD children. CONCLUSIONS Polymorphism of the 5-HTTLPR gene is correlated with cognitive dysfunction in Chinese Han children with PTSD.
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Affiliation(s)
- Ming Wu
- Department of Pediatrics, The Fourth People's Hospital of Haikou, Haikou, China
| | - Lufei Lin
- Department of Pediatrics, The Fourth People's Hospital of Haikou, Haikou, China
| | - Yuebiao Wu
- Department of Pediatrics, The Fourth People's Hospital of Haikou, Haikou, China
| | - Yu Zheng
- Department of Pediatrics, The Fourth People's Hospital of Haikou, Haikou, China
| | - Haidan Chen
- Department of Pediatrics, Sanya Central Hospital (Hainan Third People's Hospital), Sanya, China
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Hyseni Duraku Z, Uka F, Cërmjani D, Ramadani F, Bajgora S. An early assessment of presence of probable post-traumatic stress disorder and its associated risk factors in a cohort of survivors of the 2019 Albania earthquake. CURRENT PSYCHOLOGY 2021. [DOI: 10.1007/s12144-021-02024-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhou P, Deng M, Wu J, Lan Q, Yang H, Zhang C. Ventral Tegmental Area Dysfunction and Disruption of Dopaminergic Homeostasis: Implications for Post-traumatic Stress Disorder. Mol Neurobiol 2021; 58:2423-2434. [PMID: 33428093 DOI: 10.1007/s12035-020-02278-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 12/30/2020] [Indexed: 12/27/2022]
Abstract
Post-traumatic stress disorder (PTSD) is a debilitating psychiatric condition characterized by intrusive recollections of the traumatic event, avoidance behaviors, hyper-arousal to event-related cues, cognitive disruption, and mood dysregulation. Accumulating preclinical and clinical evidence implicates dysfunction of the ventral tegmental area (VTA) dopaminergic system in PTSD pathogenesis. This article reviews recent advances in our knowledge of the relationship between dopaminergic dyshomeostasis and PTSD, including the contributions of specific dopaminergic gene variants to disease susceptibility, alterations in VTA dopamine neuron activity, dysregulation of dopaminergic transmission, and potential pharmacological and psychological interventions for PTSD targeting the dopaminergic system. An in-depth understanding of PTSD etiology is crucial for the development of innovative risk assessment, diagnostic, and treatment strategies following traumatic events.
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Affiliation(s)
- Peiling Zhou
- School of Educational Sciences & Guangdong Provincial Key Laboratory of Development and Education for Special Needs Children, Lingnan Normal University, 29 Cunjing Road, Chikan District, Zhanjiang, 524048, China
| | - Meiping Deng
- School of Educational Sciences & Guangdong Provincial Key Laboratory of Development and Education for Special Needs Children, Lingnan Normal University, 29 Cunjing Road, Chikan District, Zhanjiang, 524048, China
| | - Jiashan Wu
- School of Educational Sciences & Guangdong Provincial Key Laboratory of Development and Education for Special Needs Children, Lingnan Normal University, 29 Cunjing Road, Chikan District, Zhanjiang, 524048, China
| | - Qinghui Lan
- School of Educational Sciences & Guangdong Provincial Key Laboratory of Development and Education for Special Needs Children, Lingnan Normal University, 29 Cunjing Road, Chikan District, Zhanjiang, 524048, China
| | - Huifang Yang
- School of Educational Sciences & Guangdong Provincial Key Laboratory of Development and Education for Special Needs Children, Lingnan Normal University, 29 Cunjing Road, Chikan District, Zhanjiang, 524048, China.
| | - Changzheng Zhang
- School of Educational Sciences & Guangdong Provincial Key Laboratory of Development and Education for Special Needs Children, Lingnan Normal University, 29 Cunjing Road, Chikan District, Zhanjiang, 524048, China. .,School of Psychology, Nanjing Normal University, 122 Ninghai Road, Gulou District, Nanjing, 210097, China.
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Chen X, Lin J, Kong LN, Shen YL, Chen YL, Guo QW, Zhang JC, Yang M, Fang DZ. Effects of earthquake and related environmental factors on relationship of posttraumatic stress disorder with LDLR rs5925. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 714:136811. [PMID: 32018970 DOI: 10.1016/j.scitotenv.2020.136811] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 01/17/2020] [Accepted: 01/17/2020] [Indexed: 06/10/2023]
Abstract
To test the relationship not yet explored before among earthquake and related environmental factors, low-density lipoprotein receptor (LDLR) and posttraumatic stress disorder (PTSD), the genetic variation of LDLR rs5925 was selected and PTSD was examined by PTSD Checklist-Civilian Version (PCLC) in adolescents with different genotypes of LDLR rs5925 longitudinally at 6, 12 and 18 months after the 2008 Wenchuan earthquake. The C allele carriers were observed to have higher PTSD prevalence than the TT homozygotes in the male subjects, and higher PTSD prevalence and PCL-C scores in the female subjects only at 6 months. When compared to that at 12 months, decreased PTSD prevalence was observed at 18 months only in the female C allele carriers, but not in the female TT homozygotes or the male subjects. The potential risk factors of PTSD and predictors of PCL-C scores were different during the follow-up. LDLR rs5925 was one of the predictors for PCL-C scores at 6 and 12 months, and one of the potential factors for PTSD prevalence at 6 months. These results suggest that interactions may occur between earthquakes and other related environmental factors, which could affect the relationship of LDLR rs5925 with PTSD and be considered for individualized treatment.
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Affiliation(s)
- Xu Chen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Jia Lin
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Ling Nan Kong
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Yi Lin Shen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Yong Li Chen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Qi Wei Guo
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Ji Cheng Zhang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Mei Yang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Ding Zhi Fang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China.
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Navarro-Mateu F, Escámez T, Quesada MP, Alcaráz MJ, Vilagut G, Salmerón D, Huerta JM, Chirlaque MD, Navarro C, Kessler RC, Alonso J, Martínez S. Modification of the risk of post-traumatic stress disorder (PTSD) by the 5-HTTLPR polymorphisms after Lorca's earthquakes (Murcia, Spain). Psychiatry Res 2019; 282:112640. [PMID: 31727442 PMCID: PMC7436333 DOI: 10.1016/j.psychres.2019.112640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 10/13/2019] [Accepted: 10/24/2019] [Indexed: 11/26/2022]
Abstract
Information of the modulation effect of the serotonin transporter gene-linked polymorphic region (5-HTTLPR) on post-traumatic stress disorder (PTSD) after earthquakes is scarce and contradictory. A cross-sectional face-to-face interview survey of a representative sample of the adults was carried out after the Lorca (Spain) earthquakes (May 11, 2011). Socio-demographic variables, DSM-IV diagnostic assessment and earthquake-related stressors were obtained from the Composite International Diagnostic Interview (CIDI). The triallelic and biallelic classification of the 5-HTTLPR polymorphism were genotyped from buccal swabs. Multivariate logistic regression models were used to predict PTSD, including interaction terms to explore gene-environment (G x E) interactions. The vast majority (83%, n = 341) of the Lorca survey respondents (n = 412, 71% response rate) were genotyped. Both classifications of the 5-HTTLPR genotype were in Hardy-Weinberg equilibrium. Prior lifetime PTSD was the only variable that remained a significant predictor after adjustments. There were no significant main effects of earthquake related stressors or 5-HTTLPR. However, G x E interactions of 5-HTTLPR with high emotional impact and prior lifetime anxiety disorders were statistically significant. These results provide new evidence of the modulation effect of the 5-HTTLPR polymorphisms on PTSD risk. This information might characterize people at higher risk of developing PTSD after an earthquake exposure.
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Affiliation(s)
- Fernando Navarro-Mateu
- Unidad de Docencia, Investigación y Formación en Salud Mental (UDIF-SM). Servicio Murciano de Salud. Murcia, Spain; Departamento de Psicología Básica y Metodología, Universidad de Murcia. Murcia, Spain; CIBER in Epidemiology & Public Health (CIBERESP). Madrid, Spain; IMIB-Arrixaca. Murcia, Spain.
| | - Teresa Escámez
- IMIB-Arrixaca. Murcia, Spain.,BIOBANC-MUR. IMIB Arrixaca. Murcia, Spain.,Spanish Biobaks Platform, ISCIII. Madrid, Spain
| | | | - Mª José Alcaráz
- Fundación para la Formación e Investigación Sanitarias (FFIS) de la Región de Murcia. Murcia, Spain
| | - Gemma Vilagut
- CIBER in Epidemiology & Public Health (CIBERESP). Madrid, Spain.,IM-Institut Hospital del Mar dÍnvestigacions Médiques. Barcelona, Spain
| | - Diego Salmerón
- CIBER in Epidemiology & Public Health (CIBERESP). Madrid, Spain.,IMIB-Arrixaca. Murcia, Spain.,Departamento de Ciencias Sociosanitarias. Universidad de Murcia. Murcia, Spain
| | - José Mª Huerta
- CIBER in Epidemiology & Public Health (CIBERESP). Madrid, Spain.,IMIB-Arrixaca. Murcia, Spain.,Department of Epidemiology, Murcia Health Council, Murcia, Spain
| | - M. Dolores Chirlaque
- CIBER in Epidemiology & Public Health (CIBERESP). Madrid, Spain.,IMIB-Arrixaca. Murcia, Spain.,Departamento de Ciencias Sociosanitarias. Universidad de Murcia. Murcia, Spain.,Department of Epidemiology, Murcia Health Council, Murcia, Spain
| | - Carmen Navarro
- CIBER in Epidemiology & Public Health (CIBERESP). Madrid, Spain.,IMIB-Arrixaca. Murcia, Spain.,Departamento de Ciencias Sociosanitarias. Universidad de Murcia. Murcia, Spain.,Department of Epidemiology, Murcia Health Council, Murcia, Spain
| | - Ronald C. Kessler
- Department of Health Care Policy. Harvard Medical School. Boston, USA
| | - Jordi Alonso
- CIBER in Epidemiology & Public Health (CIBERESP). Madrid, Spain.,IM-Institut Hospital del Mar dÍnvestigacions Médiques. Barcelona, Spain.,Departamento de Salud y Ciencias Experimentales, Universidad Pompeu Fabra, Barcelona, Spain
| | - Salvador Martínez
- Instituto de Neurociencias UMH-CSIC. Alicante, Spain.,CIBER in Mental Health (CIBERSAM). Madrid, Spain
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Xiao Y, Liu D, Liu K, Wu C, Zhang H, Niu Y, Jiang X. Association of DRD2, 5-HTTLPR, and 5-HTTVNTR Gene Polymorphisms With Posttraumatic Stress Disorder in Tibetan Adolescents: A Case-Control Study. Biol Res Nurs 2019; 21:286-295. [PMID: 30983408 DOI: 10.1177/1099800419838325] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Earthquake exposure is a source of stress, yet only a minority of survivors experience clinically meaningful disturbance in psychological function. Genetic epidemiological research has found that posttraumatic stress disorder (PTSD) symptoms are associated with genetic factors. Further research to reveal which genetic loci relate to the development of PTSD is warranted. METHOD We investigated the relationships between PTSD and the dopamine D2 receptor ( DRD2) gene Taq I polymorphism and the serotonin transporter gene ( SCL6A4) polymorphisms 5-hydroxytryptamine transporter gene-linked polymorphic region (5-HTTLPR) and 5-HTTVNTR in 565 adolescent earthquake survivors. PTSD-positive adolescents were identified using the PTSD Checklist-Civilian Version and the Structured Clinical Interview for the Diagnostic and Statistical Manual of Mental Disorders 4. Genotypes were analyzed using the polymerase chain reaction-restriction fragment length polymorphism analysis. The Pearson χ2 test was used to investigate the differences in genotype and allele frequencies between case and control groups. Binary logistic regression analysis was performed to identify possible influencing factors for PTSD. RESULTS The DRD2 Taq I and 5-HTTVNTR polymorphisms had statistically significant effects on PTSD, while 5-HTTLPR did not. Specifically, the DRD2 Taq I A1 allele was highly positively correlated with PTSD, whereas the 10 allele of 5-HTTVNTR was negatively correlated. CONCLUSIONS These data suggest that the DRD2 Taq I and 5-HTTVNTR genotypes moderate sensitivity to stress and the expression of emotional disturbance involving PTSD symptoms. These findings have important implications for PTSD etiology as well as for both primary prevention and treatment strategies.
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Affiliation(s)
- Yingqi Xiao
- 1 West China School of Nursing/West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Donglin Liu
- 2 Department of Nursing, Zhengzhou University, Zhengzhou, Henan Province, China
| | - Kun Liu
- 1 West China School of Nursing/West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Chenxi Wu
- 1 West China School of Nursing/West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Huaguo Zhang
- 1 West China School of Nursing/West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Ying Niu
- 3 Institute for Disaster Management and Reconstruction, Sichuan University, Chengdu, Sichuan Province, China
| | - Xiaolian Jiang
- 1 West China School of Nursing/West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
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10
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Blum K, Gondré-Lewis MC, Modestino EJ, Lott L, Baron D, Siwicki D, McLaughlin T, Howeedy A, Krengel MH, Oscar-Berman M, Thanos PK, Elman I, Hauser M, Fried L, Bowirrat A, Badgaiyan RD. Understanding the Scientific Basis of Post-traumatic Stress Disorder (PTSD): Precision Behavioral Management Overrides Stigmatization. Mol Neurobiol 2019; 56:7836-7850. [PMID: 31124077 DOI: 10.1007/s12035-019-1600-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Accepted: 04/02/2019] [Indexed: 12/20/2022]
Abstract
Post-traumatic stress disorder (PTSD) is a severe polygenic disorder triggered by environmental factors. Many polymorphic genes, particularly the genetic determinants of hypodopaminergia (low dopamine function), associate with a predisposition to PTSD as well as substance use disorder. Support from the National Institutes of Health for neuroimaging research and molecular, genetic applied technologies has improved understanding of brain reward circuitry functions that have inspired the development of new innovative approaches to their early diagnosis and treatment of some PTSD symptomatology and addiction. This review presents psychosocial and genetic evidence that vulnerability or resilience to PTSD can theoretically be impacted by dopamine regulation. From a neuroscience perspective, dopamine is widely accepted as a major neurotransmitter. Questions about how to modulate dopamine clinically in order to treat and prevent PTSD and other types of reward deficiency disorders remain. Identification of genetic variations associated with the relevant genotype-phenotype relationships can be characterized using the Genetic Addiction Risk Score (GARS®) and psychosocial tools. Development of an advanced genetic panel is under study and will be based on a new array of genes linked to PTSD. However, for now, the recommendation is that enlistees for military duty be given the opportunity to voluntarily pre-test for risk of PTSD with GARS, before exposure to environmental triggers or upon return from deployment as part of PTSD management. Dopamine homeostasis may be achieved via customization of neuronutrient supplementation "Precision Behavioral Management" (PBM™) based on GARS test values and other pro-dopamine regulation interventions like exercise, mindfulness, biosensor tracking, and meditation.
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Affiliation(s)
- Kenneth Blum
- Graduate School of Biomedical Sciences, Western University Health Sciences, Pomona, CA, USA. .,Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary. .,Department of Psychiatry, Boonshoft School of Medicine, Wright University, Dayton, OH, USA. .,Department of Precision Behavioral Management, Geneus Health, San Antonio, TX, USA. .,Division of Neurogenetic Research & Addiction Therapy, The Florida House Experience, Deerfield Beach, FL, USA. .,Division of Addiction Services, Dominion Diagnostics, North Kingston, RI, USA. .,Division of Neuroscience & Addiction Research, Pathway Healthcare, LLC., Burmingham, AL, USA.
| | - M C Gondré-Lewis
- Department of Anatomy, Developmental Neuropsychopharmacology Laboratory, Howard University College of Medicine, Washington, DC, USA
| | - E J Modestino
- Department of Psychology, Curry College, Milton, MA, USA
| | - L Lott
- Department of Precision Behavioral Management, Geneus Health, San Antonio, TX, USA
| | - D Baron
- Graduate School of Biomedical Sciences, Western University Health Sciences, Pomona, CA, USA
| | - D Siwicki
- Department of Precision Behavioral Management, Geneus Health, San Antonio, TX, USA.,Division of Addiction Services, Dominion Diagnostics, North Kingston, RI, USA
| | - T McLaughlin
- Center for Psychiatric Medicine, Lawrence, MA, USA
| | - A Howeedy
- Division of Neurogenetic Research & Addiction Therapy, The Florida House Experience, Deerfield Beach, FL, USA
| | - M H Krengel
- Department of Neurology, Boston University School of Medicine and VA Boston Healthcare System, Boston, MA, USA
| | - M Oscar-Berman
- Department of Neurology, Boston University School of Medicine and VA Boston Healthcare System, Boston, MA, USA
| | - P K Thanos
- Behavioral Neuropharmacology & Neuroimaging Laboratory on Addiction, Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University of Buffalo, Buffalo, NY, USA
| | - I Elman
- Department of Psychiatry, Cooper University School of Medicine, Camden, NJ, USA
| | - M Hauser
- Division of Addiction Services, Dominion Diagnostics, North Kingston, RI, USA
| | - L Fried
- Department of Precision Behavioral Management, Geneus Health, San Antonio, TX, USA.,Transformations Treatment Center, Delray Beach, FL, USA
| | - A Bowirrat
- Division of Anatomy, Biochemistry and Genetics Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | - R D Badgaiyan
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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11
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Feng Y, Su M, Si YJ, Guo QW, Lin J, Cao T, Zhang X, Fan M, Fang DZ. Longitudinal interplays of estrogen receptor alpha gene rs9340799 with social-environmental factors on post-traumatic stress disorder in Chinese Han adolescents after Wenchuan earthquake. Am J Med Genet B Neuropsychiatr Genet 2018; 177:337-345. [PMID: 29250928 DOI: 10.1002/ajmg.b.32615] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 11/21/2017] [Indexed: 11/05/2022]
Abstract
Indirect evidences suggested associations of estrogen receptor alpha (ESR1) with post-traumatic stress disorder (PTSD). However, the relationship between rs9340799 on ESR1 gene and PTSD has not been reported yet. The present study was to explore the longitudinal changes of prevalence and severity of PTSD in adolescents with different genotypes of rs9340799 after the 2008 Wenchuan earthquake. Social-environmental factors were collected by questionnaires in 465 high school students. Variants of rs9340799 were determined by polymerase chain reaction-restriction fragment length polymorphism analyses and verified by DNA sequencing. PTSD symptoms were assessed by PTSD Checklist-Civilian Version (PCL-C) at 6, 12, and 18 months after the earthquake. The female AA homozygotes had a trend of higher prevalence of PTSD and significantly higher PCL-C scores than the female G allele carriers at 6 months after the earthquake. The female students had higher prevalence of PTSD and higher PCL-C scores than the male subjects at 6 months in the AA homozygotes, but not in the G allele carriers. Consecutive decreases in PCL-C scores were observed only in the female AA homozygotes. Only in the female, the AA genotype was the risk factor and predictor of PCL-C scores at 6 months. Potential factors of PTSD prevalence and predictors of PCL-C scores were different between the AA homozygotes and G allele carriers at different time during the follow-up. These results suggest gene-environment interactions may occur among rs9340799 and social-environmental factors, and influence the development and natural rehabilitation of PTSD in the course after stressed by the earthquake.
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Affiliation(s)
- Yue Feng
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, P.R. China
| | - Mi Su
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, P.R. China
| | - Yan Jun Si
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, P.R. China
| | - Qi Wei Guo
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, P.R. China
| | - Jia Lin
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, P.R. China
| | - Ting Cao
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, P.R. China
| | - Xin Zhang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, P.R. China
| | - Mei Fan
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, P.R. China
| | - Ding Zhi Fang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, P.R. China
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12
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An overview of posttraumatic stress disorder genetic studies by analyzing and integrating genetic data into genetic database PTSDgene. Neurosci Biobehav Rev 2017; 83:647-656. [DOI: 10.1016/j.neubiorev.2017.08.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 07/08/2017] [Accepted: 08/30/2017] [Indexed: 01/08/2023]
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13
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Zhao M, Yang J, Wang W, Ma J, Zhang J, Zhao X, Qiu X, Yang X, Qiao Z, Song X, Wang L, Jiang S, Zhao E, Yang Y. Meta-analysis of the interaction between serotonin transporter promoter variant, stress, and posttraumatic stress disorder. Sci Rep 2017; 7:16532. [PMID: 29184054 PMCID: PMC5705670 DOI: 10.1038/s41598-017-15168-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 10/20/2017] [Indexed: 11/17/2022] Open
Abstract
Exposure to stress predicts the occurrence of posttraumatic stress disorder (PTSD) in individuals harboring the serotonin transporter promoter variant 5-HTTLPR. We carried out a meta-analysis of studies investigating the interaction between 5-HTTLPR, stress, and PTSD to clarify the interrelatedness of these factors. We reviewed all relevant studies published in English before May 2016. The Lipták-Stouffer z-score method for meta-analysis was applied to combined data. The z score was separately calculated for the stressful life events, childhood adversity, bi- and triallelic loci, and cross-sectional and longitudinal studies subgroups. A total of 14 studies with 15,883 subjects met our inclusion criteria. We found strong evidence that the presence of 5-HTTLPR influenced the relationship between stress and PTSD (P = 0.00003), with the strongest effects observed in the cross-sectional and longitudinal groups (P = 0.01 and 2.0 × 10-6, respectively). Stressful life events and childhood adversity separately interacted with 5-HTTLPR in PTSD (P = 2.0 × 10-8 and 0.003, respectively). When the studies were stratified by locus classification, the evidence was stronger for the triallelic (P = 4.0 × 10-8) than for the biallelic (P = 0.054) locus subgroup. There was strong evidence that 5-HTTLPR influences the relationship between stress and PTSD.
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Affiliation(s)
- Mingzhe Zhao
- Psychology Department of the Public Health Institute of Harbin Medical University, No. 157, Baojian Road, Nangang District, Harbin, 150081, China
| | - Jiarun Yang
- Psychology Department of the Public Health Institute of Harbin Medical University, No. 157, Baojian Road, Nangang District, Harbin, 150081, China
| | - Wenbo Wang
- Psychology Department of the Public Health Institute of Harbin Medical University, No. 157, Baojian Road, Nangang District, Harbin, 150081, China
| | - Jingsong Ma
- Psychology Department of the Public Health Institute of Harbin Medical University, No. 157, Baojian Road, Nangang District, Harbin, 150081, China
| | - Jian Zhang
- Psychology Department of the Public Health Institute of Harbin Medical University, No. 157, Baojian Road, Nangang District, Harbin, 150081, China
| | - Xueyan Zhao
- Psychology Department of the Public Health Institute of Harbin Medical University, No. 157, Baojian Road, Nangang District, Harbin, 150081, China
| | - Xiaohui Qiu
- Psychology Department of the Public Health Institute of Harbin Medical University, No. 157, Baojian Road, Nangang District, Harbin, 150081, China
| | - Xiuxian Yang
- Psychology Department of the Public Health Institute of Harbin Medical University, No. 157, Baojian Road, Nangang District, Harbin, 150081, China
| | - Zhengxue Qiao
- Psychology Department of the Public Health Institute of Harbin Medical University, No. 157, Baojian Road, Nangang District, Harbin, 150081, China
| | - Xuejia Song
- Psychology Department of the Public Health Institute of Harbin Medical University, No. 157, Baojian Road, Nangang District, Harbin, 150081, China
| | - Lin Wang
- Psychology Department of the Public Health Institute of Harbin Medical University, No. 157, Baojian Road, Nangang District, Harbin, 150081, China
| | - Shixiang Jiang
- Psychology Department of the Public Health Institute of Harbin Medical University, No. 157, Baojian Road, Nangang District, Harbin, 150081, China
| | - Erying Zhao
- Psychology Department of the Public Health Institute of Harbin Medical University, No. 157, Baojian Road, Nangang District, Harbin, 150081, China
| | - Yanjie Yang
- Psychology Department of the Public Health Institute of Harbin Medical University, No. 157, Baojian Road, Nangang District, Harbin, 150081, China.
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14
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Brain-Derived Neurotropic Factor Val66Met Polymorphism and Posttraumatic Stress Disorder among Survivors of the 1998 Dongting Lake Flood in China. BIOMED RESEARCH INTERNATIONAL 2017; 2017:4569698. [PMID: 28589140 PMCID: PMC5446855 DOI: 10.1155/2017/4569698] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 04/20/2017] [Indexed: 12/29/2022]
Abstract
OBJECTIVE This study mainly aimed to explore the association between brain-derived neurotropic factor (BDNF) Val66Met polymorphism and posttraumatic stress disorder (PTSD) among flood survivors in China. METHODS Individuals who experienced the 1998 Dongting Lake flood in Southeast Huarong, China, were enrolled in this study. Qualified health personnel carried out face-to-face interviews with participants. PTSD was identified using PTSD Checklist-Civilian version (PCL-C). Blood samples were collected from the participants to extract DNA for genotyping. RESULTS A total of 175 participants were enrolled in this study. The prevalence of PTSD among flood survivors at 17-year follow-up was 16.0% (28/175). Individuals with PTSD were more likely to be female, experience at least three flood-related stressors, experience at least three postflood stressors, and carry the Met than those without PTSD. Compared with Val/Val homozygotes, Met carriers had higher scores of PCL-C (mean ± standard error: 23.60 ± 7.23 versus 27.19 ± 9.48, P < 0.05). Multivariable logistic regression analysis indicated that Met carriers (aOR = 4.76, 95% CI = 1.02-22.15, P < 0.05) were more likely to develop PTSD than Val/Val homozygotes. CONCLUSIONS Met carriers for BDNF rs6265 are at higher risk of developing PTSD and also exhibit more severe PTSD symptoms than Val/Val homozygotes among flood survivors in China.
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Li L, Bao Y, He S, Wang G, Guan Y, Ma D, Wang P, Huang X, Tao S, Zhang D, Liu Q, Wang Y, Yang J. The Association Between Genetic Variants in the Dopaminergic System and Posttraumatic Stress Disorder: A Meta-Analysis. Medicine (Baltimore) 2016; 95:e3074. [PMID: 26986136 PMCID: PMC4839917 DOI: 10.1097/md.0000000000003074] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Posttraumatic stress disorder (PTSD) is a complex mental disorder and can severely interfere with the normal life of the affected people. Previous studies have examined the association of PTSD with genetic variants in multiple dopaminergic genes with inconsistent results. To perform a systematic literature search and conduct meta-analysis to examine whether genetic variants in the dopaminergic system is associated with PTSD. Data Sources: PubMed, Cochrane Library, Embase, Google Scholar, and HuGE. Study eligibility criteria and participants: The studies included subjects who had been screened for the presence of PTSD; the studies provided data for genetic variants of genes involved in the dopaminergic system; the outcomes of interest included diagnosis status of PTSD; and the studies were case-control studies. Study appraisal and synthesis methods: Odds ratio was used as a measure of association. We used random-effects model in all the meta-analyses. Between-study heterogeneity was assessed using I², and publication bias was evaluated using Egger test. Findings from meta-analyses were confirmed using random-effects meta-analyses under the framework of generalized linear model (GLM). A total of 19 studies met the eligibility criteria and were included in our analyses. We found that rs1800497 in DRD2 was significantly associated with PTSD (OR = 1.96, 95% CI: 1.15-3.33; P = 0.014). The 3'-UTR variable number tandem repeat (VNTR) in SLC6A3 also showed significant association with PTSD (OR = 1.62, 95% CI: 1.12-2.35; P = 0.010), but there was no association of rs4680 in COMT with PTSD (P = 0.595). Sample size is limited for some studies; type and severity of traumatic events varied across studies; we could not control for potential confounding factors, such as age at traumatic events and gender; and we could not examine gene-environment interaction due to lack of data. We found that rs1800497 in DRD2 and the VNTR in SLC6A3 showed significant association with PTSD. Future studies controlling for confounding factors, with large sample sizes and more homogeneous traumatic exposure, are needed to validate the findings from this study.
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Affiliation(s)
- Lizhuo Li
- From the Department of Critical Care and Emergency Medicine, The Affiliated Hospital of Hainan Medical University, Haikou, Hainan (LL); Emergency Department, Shengjing Hospital of China Medical University (LL, SH, GW, QL); Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, Liaoning (YB, YG, PW, XH, ST, DZ, YW); Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China (DM); Rush Alzheimer's Disease Center (JY); and Department of Neurological Sciences (JY), Rush University Medical Center, Chicago, IL, USA
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16
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Kang HJ, Yoon S, Lyoo IK. Peripheral Biomarker Candidates of Posttraumatic Stress Disorder. Exp Neurobiol 2015; 24:186-96. [PMID: 26412967 PMCID: PMC4580745 DOI: 10.5607/en.2015.24.3.186] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 09/10/2015] [Accepted: 09/10/2015] [Indexed: 12/11/2022] Open
Abstract
There is high variability in the manifestation of physical and mental health problems following exposure to trauma and disaster. Although most people may show a range of acute symptoms in the aftermath of traumatic events, chronic and persistent mental disorders may not be developed in all individuals who were exposed to traumatic events. The most common long-term pathological consequence after trauma exposure is posttraumatic stress disorder (PTSD). However, comorbid conditions including depression, anxiety disorder, substance use-related problems, and a variety of other symptoms may frequently be observed in individuals with trauma exposure. Post-traumatic syndrome (PTS) is defined collectively as vast psychosocial problems that could be experienced in response to traumatic events. It is important to predict who will continue to suffer from physical and mental health problems and who will recover following trauma exposure. However, given the heterogeneity and variability in symptom manifestations, it is difficult to find identify biomarkers which predict the development of PTSD. In this review, we will summarize the results of recent studies with regard to putative biomarkers of PTSD and suggest future research directions for biomarker discovery for PTSD.
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Affiliation(s)
- Hee Jin Kang
- Ewha Brain Institute, Ewha Womans University, Seoul 03760, Korea
| | - Sujung Yoon
- Ewha Brain Institute, Ewha Womans University, Seoul 03760, Korea
| | - In Kyoon Lyoo
- Ewha Brain Institute, Ewha Womans University, Seoul 03760, Korea. ; Department of Brain and Cognitive Sciences, Ewha Womans University, Seoul 03760, Korea. ; College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Korea
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