Genetics of Posttraumatic Stress Disorder

CNS Spectrums ◽  
2003 ◽  
Vol 8 (9) ◽  
pp. 693-698 ◽  
Author(s):  
Ronnen H. Segman ◽  
Arieh Y. Shalev

ABSTRACTPosttraumatic stress disorder (PTSD) is a prevalent anxiety disorder marked by behavioral, physiologic, and hormonal alterations. PTSD is disabling and commonly follows a chronic course. The etiology of PTSD is unknown, although exposure to a traumatic event constitutes a necessary, but not sufficient, factor. A twin study of Vietnam veterans has shown significant genetic contribution to PTSD. The fact that PTSD's underlying genotypic vulnerability is only expressed following trauma exposure limits the usefulness of family-based linkage approaches. In contrast to the other major psychiatric disorders, large studies for the search of underlying genes have not been described in PTSD to date. Complementary approaches for locating involved genes include association-based studies employing case-control or parental genotypes for transmission dysequilibrium analysis and quantitative trait loci studies in animal models. Identification of susceptibility genes will increase our understanding of traumatic stress disorders and help to elucidate their molecular basis. The current review provides an up-to-date outline of progress in the field of PTSD.

2018 ◽  
Vol 10 (3) ◽  
pp. 33
Author(s):  
Anderson Diaz Perez ◽  
Elvis Eliana Pinto Aragón ◽  
Carmenza Leonor Mendoza Cataño ◽  
Moraima del Toro Rubio ◽  
Elkin Navarro-Quiroz

INTRODUCTION: Posttraumatic Stress Disorder (PTSD) is a psychiatric syndrome known since 1980 with multiple names in the military field. Its etiology is multicausal, whose predominant factor is the lack of adaptation and managing with events considered traumatic. Objective. To describe the clinical characteristics such as the type of psychological and pharmacological treatment received by the naval military with diagnosis of Posttraumatic Stress Disorder at the Psychiatric Unit of Cartagena’s Naval Hospital.METHODOLOGY: A descriptive, retrospective cross-sectional study with an associative approach (Crosstabulation). The sample was 242 navy subjects with PTSD diagnosis. The information was collected with a data collection form of medical records. The information analysis was developed through the program SPSS ® 21.0. Chi2 and value of p≤0.05 calculation was applied through the crossing of variables.RESULTS: The most prevalent type of traumatic event was the one represented by combat with the presence of depressive disorders and anxiety with a value of p≤0.05.CONCLUSIONS: The PTSD severity is related to the severity of the event, in addition if the trumatic event was repetitive.


2017 ◽  
Vol 2 (2) ◽  
pp. 020227
Author(s):  
Julia Müller

Posttraumatic Stress Disorder (PTSD) is a widespread condition, that affects near 20% of individuals, exposed to traumatic event. Moreover, recent studies suggest, that it has a tendency for chronic course and is associated with increased risk of cardiovascular events. According to clinical guidelines as first line therapy for PTSD trauma-focused cognitive-behavioral therapy or eye movement desensitization and reprocessing therapy must be used. In this educational course are presented highlights of 2-day trauma-focused cognitive therapy training, including PTSD symptoms, overall CBT methods overview, theoretical and practical implications.


Journalism ◽  
2017 ◽  
Vol 19 (9-10) ◽  
pp. 1308-1325 ◽  
Author(s):  
Mina Lee ◽  
Eun Hye Ha ◽  
Jung Kun Pae

This study investigated posttraumatic stress disorder (PTSD) symptoms on Korean journalists and the contributing variables. Predicting variables included the exposure to traumatic events, coping strategy, social support, optimism, negative beliefs, and the journalists’ occupational perspectives. A total of 367 Korean journalists participated in the survey. The findings revealed that, first, Korean journalists had suffered severely from PTSD symptoms according to the prevalence rate. Second, the extent of traumatic event exposure, the length of career, the use of dysfunctional coping strategy, a lack of social support, and negative beliefs were identified as significantly related variables. Finally, occupational perspectives showed meaningful associations with development of the symptoms. This study provided an empirical analysis of Korean journalists’ experiences of traumatic events and psychological stress for the first time.


2002 ◽  
Vol 36 (1) ◽  
pp. 9-30 ◽  
Author(s):  
Allan N Schore

Objective: This review integrates recent advances in attachment theory, affective neuroscience, developmental stress research, and infant psychiatry in order to delineate the developmental precursors of posttraumatic stress disorder. Method: Existing attachment, stress physiology, trauma, and neuroscience literatures were collected using Index Medicus/Medline and Psychological Abstracts. This converging interdisciplinary data was used as a theoretical base for modelling the effects of early relational trauma on the developing central and autonomic nervous system activities that drive attachment functions. Results: Current trends that integrate neuropsychiatry, infant psychiatry, and clinical psychiatry are generating more powerful models of the early genesis of a predisposition to psychiatric disorders, including PTSD. Data are presented which suggest that traumatic attachments, expressed in episodes of hyperarousal and dissociation, are imprinted into the developing limbic and autonomic nervous systems of the early maturing right brain. These enduring structural changes lead to the inefficient stress coping mechanisms that lie at the core of infant, child, and adult posttraumatic stress disorders. Conclusions: Disorganised-disoriented insecure attachment, a pattern common in infants abused in the first 2 years of life, is psychologically manifest as an inability to generate a coherent strategy for coping with relational stress. Early abuse negatively impacts the developmental trajectory of the right brain, dominant for attachment, affect regulation, and stress modulation, thereby setting a template for the coping deficits of both mind and body that characterise PTSD symptomatology. These data suggest that early intervention programs can significantly alter the intergenerational transmission of posttraumatic stress disorders.


1998 ◽  
Vol 32 (1) ◽  
pp. 21-31 ◽  
Author(s):  
Brian I. O'toole ◽  
Richard P. Marshall ◽  
Ralph J. Schureck ◽  
Matthew Dobson

Objective: The aims of this paper are to determine the risk factors for combat-related posttraumatic stress disorder (PTSD) and to examine the relative contribution of pre-military factors, pre-trauma psychiatric diagnoses, military factors such as combat posting, and combat and casualty stress exposure. Method: An epidemiological cohort study using standardised psychiatric, social and health interviews was undertaken with a national random sample of male Australian Army Vietnam veterans. Multivariate logistic regression was used to examine the relative contribution of factors derived from interview and from military records in four categories: pre-enlistment circumstances including home life, education, major life stress; pre-Vietnam psychiatric diagnoses; military experiences before and during Vietnam; and combat and stress experiences. Results: Of the 128 data items examined, significant associations were found for 39, in addition to combat stress. Pre-enlistment items accounted for about 3% of the deviance towards PTSD diagnosis, pre-enlistment psychiatric diagnosis about 13%, military variables about 7% and combat stress about 18%; all factors together accounted for 42%. Conclusions: The results confirm that pre-military and military variables make only a small but significant contribution to PTSD either alone or after controlling for combat stress; that psychiatric diagnoses of depression, dysthymia and agoraphobia make strong contributions to PTSD; but that combat stress makes the largest contribution even after controlling for the effects of other variables. Psychiatric diagnoses and combat stress appear to be independent in their effects on PTSD.


1999 ◽  
Vol 12 (4) ◽  
pp. 625-640 ◽  
Author(s):  
Brian I. O'Toole ◽  
Richard P. Marshall ◽  
Ralph J. Schureck ◽  
Matthew Dobson

2009 ◽  
Vol 105 (3) ◽  
pp. 889-899 ◽  
Author(s):  
Stefan Bogaerts ◽  
Maarten J. J. Kunst ◽  
Frans W. Winkel

This study examined Posttraumatic Stress Disorder in relation to secure and insecure attachment styles based on data collected in a sample of 81 Belgian security workers. All had experienced one traumatic event in the previous year. The sample was divided into a securely attached and an insecurely attached group. The three PTSD symptom scales, Re-experiencing, Avoidance, and Hyperarousal, differentiated significantly between the two attachment groups; the dismissive attachment style was negatively related to PTSD. Individuals with a positive view of themselves and a negative view of others have less risk of developing PTSD than those with a fearful or preoccupied attachment style. A relationship between the dismissive attachment style with grandiose narcissism seems possible. Interest has been expressed in medical approaches; therefore, the importance of medical research on PTSD is emphasized.


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