TY - JOUR PY - 2024// TI - Interaction between PTSD-PRS and trauma affects PTSD likelihood in women victims of sexual assault JO - Revista brasileira de psiquiatria A1 - Bugiga, Amanda Victória Gomes A1 - Carvalho, Carolina Muniz A1 - Oliveira, Adrielle Martins A1 - Coimbra, Bruno Messina A1 - Chehimi, Samar Nasser A1 - Zanardo, Evelin Aline A1 - Kulikowski, Leslie Domenici A1 - Mello, Andrea Feijó A1 - Ota, Vanessa Kiyomi A1 - Mello, Marcelo Feijo A1 - Belangero, Sintia Iole SP - ePub EP - ePub VL - ePub IS - ePub N2 - OBJECTIVE: Post-traumatic stress disorder (PTSD) is triggered by traumatic events, but genetic vulnerability and a history of childhood trauma are additional factors that may increase the risk of PTSD. Thus, our study focused on exploring the interaction between genetic susceptibility, as assessed by polygenic risk score (PRS), and traumatic events.

METHODS: We evaluated 68 women with PTSD who had been sexually assaulted and 63 healthy controls without a history of sexual assault. DNA was genotyped using the Infinium Global Screening Array (Illumina), and PRS analysis was performed using PRSice. Furthermore, logistic regression models were employed to examine the interaction between childhood trauma, traumatic life events, and PTSD-PRS and how they contribute to the risk of developing PTSD.

RESULTS: We found a significant association between PRS, childhood trauma (p = 0.03; OR = 1.241), and PTSD. Additionally, an interaction was observed between PRS, traumatic life events, and childhood trauma, particularly relating to physical and emotional neglect (p = 0.028; OR = 1.010). When examining neglect separately, we found a modest association between emotional neglect and PTSD (p = 0.014; OR = 1.086).

CONCLUSIONS: Our findings highlight the importance of considering genetic vulnerability and traumatic experiences in understanding the etiology of PTSD.

Language: en

LA - en SN - 1516-4446 UR - http://dx.doi.org/10.47626/1516-4446-2023-3335 ID - ref1 ER -