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  • Title: Ovine corticotropin releasing hormone stimulation test: normal value study.
    Author: Young WF, Zinsmeister AR, Twomey CK, Kao PC, Jiang NS, Carpenter PC.
    Journal: Mayo Clin Proc; 1990 Jul; 65(7):943-8. PubMed ID: 2165546.
    Abstract:
    We determined the pituitary-adrenal response to 1 microgram/kg of ovine corticotropin releasing hormone (oCRH) administered as an intravenous bolus injection in 50 normal subjects. Brief facial flushing was noted in 44% of the subjects; no other side effects were reported. Plasma corticotropin levels increased from a median of 30.2 pg/ml at baseline to a median peak level of 77.8 pg/ml after administration of oCRH; the peak response occurred at the 30- to 45-minute or the 45- to 60-minute time point. Plasma cortisol levels increased from a median of 10.8 micrograms/dl at baseline to a median peak level of 22.0 micrograms/dl after administration of oCRH; the peak response occurred at the 45- to 60-minute time point. Plasma beta-endorphin levels increased from a median of 9.5 pg/ml at baseline to a median peak level of 23.0 pg/ml after administration of oCRH; the peak response occurred at the 15- to 30-minute or the 30- to 45-minute time point. The responsiveness to oCRH was unaffected by age, sex, or body mass index of the subjects.
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