Cortisol response to cosyntropin administration in military veterans with or without posttraumatic stress disorder.
Studies have demonstrated altered sensitivity of the hypothalamic-pituitary-adrenal (HPA) axis to its direct regulators in veterans with posttraumatic stress disorder (PTSD), but little is known about the adrenal response to hormonal stimulation in PTSD. An increased cortisol response to synthetic corticotropin-releasing factor (CRF) was recently found to be associated with war-zone deployment and not PTSD specifically. To more accurately assess whether there is altered adrenocortical responsivity to hormonal stimulation in relation to war-zone deployment or PTSD, we performed the low-dose cosyntropin stimulation test in a sample of 45 male veterans: 13 war-zone exposed veterans with chronic PTSD (PTSD+), 22 war-zone exposed veterans without chronic PTSD (PTSD-), and 10 veterans not exposed to a war-zone and without chronic PTSD (non-exposed). Plasma cortisol and ACTH were measured at baseline and at intervals over a one hour period following intravenous administration of 1μg of cosyntropin. A significant main effect of group (PTSD+, PTSD-, non-exposed) on the cortisol response to cosyntropin was observed. Cosyntropin-stimulated plasma cortisol levels were significantly higher in the PTSD+ and PTSD- groups compared to the non-exposed group. A significant main effect of group was also observed on peak cortisol levels. These findings suggest that war-zone exposure itself has persistent effects on adrenocortical activity.
Departments of Psychiatry, James J. Peters VA Medical Center, Bronx, NY, United States; Mount Sinai School of Medicine, New York, NY, United States. Electronic address: julia.golier@va.gov.
Julia A
JA
Golier
Departments of Psychiatry, James J. Peters VA Medical Center, Bronx, NY, United States.
Kimberly
K
Caramanica
Departments of Psychiatry, James J. Peters VA Medical Center, Bronx, NY, United States; Mount Sinai School of Medicine, New York, NY, United States.
Iouri
I
Makotkine
Departments of Psychiatry, James J. Peters VA Medical Center, Bronx, NY, United States; Mount Sinai School of Medicine, New York, NY, United States.
Leo
L
Sher
Departments of Psychiatry, James J. Peters VA Medical Center, Bronx, NY, United States; Mount Sinai School of Medicine, New York, NY, United States.
Rachel
R
Yehuda
D000324:Adrenocorticotropic Hormone / Q000097:blood; D000328:Adult; D003346:Corticotropin-Releasing Hormone / Q000097:blood; D003366:Cosyntropin / Q000008:administration & dosage / Q000494:pharmacology*; D003687:Dehydroepiandrosterone / Q000097:blood; D006801:Humans; D006854:Hydrocortisone / Q000097:blood*; D007030:Hypothalamo-Hypophyseal System / Q000187:drug effects / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D008889:Military Personnel; D010912:Pituitary-Adrenal Function Tests; D010913:Pituitary-Adrenal System / Q000187:drug effects / Q000378:metabolism; D012959:Socioeconomic Factors; D013313:Stress Disorders, Post-Traumatic / Q000097:blood*; D014728:Veterans / Q000523:psychology
D003366:Cosyntropin; D003687:Dehydroepiandrosterone; D000324:Adrenocorticotropic Hormone; D003346:Corticotropin-Releasing Hormone; D006854:Hydrocortisone
ACTH; Cortisol; Cosyntropin; Post-traumatic stress disorder (PTSD); Veterans