Abstract:
UNLABELLED:Whereas trauma-associated arousal has been linked fairly consistently with elevations in both glucocorticoids and catecholamines, neuroendocrine correlates of hyperarousal in the context of posttraumatic stress disorder (PTSD) have been more variable. Further, neuroendocrine predictors of the development of PTSD following trauma have been related to prior exposure, and data from several laboratories suggests that hyperarousal may develop in a neuroendocrine milieu of relatively diminished basal glucocorticoid secretion. METHODS:In this article we examined 24-h cortisol and norepinephrine excretion in 42 treatment-seeking survivors of the 9/11 World Trade Center (WTC) attacks, 32 of whom met criteria for PTSD, and 15 of whom met criteria for major depression, at the time of evaluation; 14 of the 15 subjects meeting criteria for major depression also suffered from PTSD. RESULTS:PTSD subjects' 24-h cortisol excretion (46.3 +/- 20.0 microL/dL) was lower than that of the non-PTSD cohort (72.2 +/- 22.4 microL/dL; t = 3.18, df = 37, P = 0.003), and 24-h urinary cortisol was negatively correlated with the experience of the WTC attacks as a Criterion-A event (r = -0.427, P = 0.007), and with self-rated avoidance (r = -0.466, P = 0.003) and total score (r = -0.398, P = 0.012) on the PTSD Symptom Scale (PSS). In contrast, 24-h norepinephrine excretion was not associated with the development of PTSD or with PTSD-related symptoms, but was negatively correlated with days since 9/11 at the time of evaluation (r = -0.393, P = 0.015). DISCUSSION:The latter finding suggests a relationship of norepinephrine to a dimension of stress-related arousal not captured by the symptom-rating scales chosen for this study to reflect symptoms related to PTSD and other neuropsychiatric disorders, but instead, of one to that of the sudden multidimensional life disruption suffered by the WTC survivors that applied for treatment. These data also confirm, in a naturalistic sample, the previously observed negative association of urinary cortisol excretion with development of PTSD in the aftermath of severe trauma exposure.
journal_name
Ann N Y Acad Scijournal_title
Annals of the New York Academy of Sciencesauthors
Bierer LM,Tischler L,Labinsky E,Cahill S,Foa E,Yehuda Rdoi
10.1196/annals.1364.055subject
Has Abstractpub_date
2006-07-01 00:00:00pages
514-20eissn
0077-8923issn
1749-6632pii
1071/1/514journal_volume
1071pub_type
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