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J Abnorm Child Psychol. 2015 May;43(4):619-32. doi: 10.1007/s10802-014-9933-2.

Post-dexamethasone cortisol, self-inflicted injury, and suicidal ideation among depressed adolescent girls.

Author information

1
Department of Psychology, The Ohio State University, 1835 Neil Avenue, Columbus, OH, 43210, USA, beauchaine.1@osu.edu.

Abstract

Although the dexamethasone suppression test (DST) has limited use as a biomarker of depression given inadequate sensitivity and specificity, it marks prospective risk for suicide among adults. However, few studies have examined associations between the DST, suicidal ideation, and self-inflicted injury (SII) among adolescents, even though SII is the single best predictor of eventual suicide. We evaluated the DST as a correlate of suicidal ideation and retrospective reports of self-inflicted injury (SII) among adolescent girls, ages 13-17, with histories of depression (n = 28) or depression and self-harm (n = 29). Lower post-DST cortisol was associated with suicidal ideation and SII, over-and-above parent-reports and combined parent-/self-reports of internalizing and externalizing behavior. These findings are consistent with recent acquired capacity models of stress-related psychopathology in which hypothalamic-pituitary adrenal (HPA) axis function is altered through epigenetic/allostatic mechanisms among vulnerable individuals who incur adversity early in life.

PMID:
25208812
PMCID:
PMC4362869
DOI:
10.1007/s10802-014-9933-2
[Indexed for MEDLINE]
Free PMC Article

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