Psychoneuroendocrinology
Psychoneuroendocrinology
5 years ago

DHEA and DHEA-S levels in posttraumatic stress disorder: A meta-analytic review

Differences in hypothalamic-pituitary-adrenocortical (HPA) functioning between patients with posttraumatic stress disorder (PTSD) and controls are among the most consistent neurobiological findings in PTSD. HPA-axis activation results in the output of various steroid hormones including dehydroepiandrosterone (DHEA), which is then converted into dehydroepiandrosterone sulfate (DHEA-S), with anti-glucocorticoid actions among its pleiotropic effects. To investigate whether there is evidence for consistent differences in basal DHEA and DHEA-s levels between individuals with and without PTSD, we performed random-effect meta-analyses aggregating findings of previously published studies. Nine studies reporting on DHEA levels (486 participants) and 8 studies reporting on DHEA-S levels (501 participants) were included. No significant differences in DHEA or DHEA-S levels between PTSD and control groups were found. Exploratory subgroup analyses were performed to distinguish between effects of PTSD and trauma exposure. A trend for higher DHEA levels was found in PTSD patients compared to non-trauma-exposed controls (NTC) (k=3, SMD=1.12 95% CI −0.03–2.52, Z=1.91, p =0.06). Significantly higher DHEA-S levels were observed in PTSD patients compared to NTC (k =2, SMD=0.76, 95% CI 0.38–1.13, Z=3.94, p < 0.001). Additionally, significantly higher DHEA levels were observed in trauma-exposed controls (TC) compared to NTC (k=3, SMD=0.66, 95% CI 0.33–0.99, Z=3.88, p < 0.001, I2 =86%) this suggests that trauma exposure, irrespective of further PTSD development, might increase basal DHEA and DHEA-S levels.

Publisher URL: www.sciencedirect.com/science

DOI: S0306453017303281

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