Journal
CURRENT PSYCHIATRY REPORTS
Volume 20, Issue 6, Pages -Publisher
SPRINGER
DOI: 10.1007/s11920-018-0907-x
Keywords
Posttraumatic stress disorder (PTSD); Sex as a biological variable (SABV); Neurobiology; Stress physiology; Neurocircuitry; Gonadal hormones
Categories
Funding
- NIMH [K23MH102360, K23MH107831]
- Brain & Behavior Research Foundation NARSAD Young Investigator Award
- NIMH
- Office of Research on Women's Health [P50MH099910]
- NICHD [K12HD085848]
- EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT [K12HD085848] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF MENTAL HEALTH [P50MH099910, K23MH102360, K23MH107831] Funding Source: NIH RePORTER
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This review highlights the neurobiological aspects of sex differences in posttraumatic stress disorder (PTSD), specifically focusing on the physiological responses to trauma and presents evidence supporting hormone and neurosteroid/peptide differences from both preclinical and clinical research. While others have suggested that trauma type or acute emotional reaction are responsible for women's disproportionate risk to PTSD, neither of these explanations fully accounts for the sex differences in PTSD. Sex differences in brain neurocircuitry, anatomy, and neurobiological processes, such as those involved in learning and memory, are discussed as they have been implicated in risk and resilience for the development of PTSD. Gonadal and stress hormones have been found to modulate sex differences in the neurocircuitry and neurochemistry underlying fear learning and extinction. Preclinical research has not consistently controlled for hormonal and reproductive status of rodents nor have clinical studies consistently examined these factors as potential moderators of risk for PTSD. Sex as a biological variable (SABV) should be considered, in addition to the endocrine and reproductive status of participants, in all stress physiology and PTSD research.
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