TY - JOUR PY - 2022// TI - Advanced brain age in deployment-related traumatic brain injury: a LIMBIC-CENC neuroimaging study JO - Brain injury A1 - Dennis, Emily L. A1 - Taylor, Brian A. A1 - Newsome, Mary R. A1 - Troyanskaya, Maya A1 - Abildskov, Tracy J. A1 - Betts, Aaron M. A1 - Bigler, Erin D. A1 - Cole, James A1 - Davenport, Nicholas A1 - Duncan, Timothy A1 - Gill, Jessica A1 - Guedes, Vivian A1 - Hinds, Sidney R. 2nd A1 - Hovenden, Elizabeth S. A1 - Kenney, Kimbra A1 - Pugh, Mary Jo A1 - Scheibel, Randall S. A1 - Shahim, Pashtun-Poh A1 - Shih, Robert A1 - Walker, William C. A1 - Werner, J. Kent A1 - York, Gerald E. A1 - Cifu, David X. A1 - Tate, David F. A1 - Wilde, Elisabeth A. SP - ePub EP - ePub VL - ePub IS - ePub N2 - OBJECTIVE: To determine if history of mild traumatic brain injury (mTBI) is associated with advanced or accelerated brain aging among the United States (US) military Service Members and Veterans.

METHODS: Eight hundred and twenty-two participants (mean age = 40.4 years, 714 male/108 female) underwent MRI sessions at eight sites across the US. Two hundred and one participants completed a follow-up scan between five months and four years later. Predicted brain ages were calculated using T1-weighted MRIs and then compared with chronological ages to generate an Age Deviation Score for cross-sectional analyses and an Interval Deviation Score for longitudinal analyses. Participants also completed a neuropsychological battery, including measures of both cognitive functioning and psychological health.

RESULT: In cross-sectional analyses, males with a history of deployment-related mTBI showed advanced brain age compared to those without (t(884) = 2.1, p = .038), while this association was not significant in females. In follow-up analyses of the male participants, severity of posttraumatic stress disorder (PTSD), depression symptoms, and alcohol misuse were also associated with advanced brain age.

CONCLUSION: History of deployment-related mTBI, severity of PTSD and depression symptoms, and alcohol misuse are associated with advanced brain aging in male US military Service Members and Veterans.

Language: en

LA - en SN - 0269-9052 UR - http://dx.doi.org/10.1080/02699052.2022.2033844 ID - ref1 ER -