Coupland Nick J, Hegadoren Kathleen M, Myrholm Jessica
1E7.16 WMC, Psychopharmacology Research Unit, Department of Psychiatry, University of Alberta, 8440-112 Street, Edmonton, T6G 2B7, Alberta, Canada.
J Psychiatr Res. 2003 May-Jun;37(3):221-8. doi: 10.1016/s0022-3956(03)00003-7.
It has been hypothesized that patients with posttraumatic stress disorder (PTSD) show increased glucocorticoid sensitivity. The study tested beclomethasone-induced vasoconstriction (BIV), a measure of peripheral glucocorticoid sensitivity, in women with PTSD. A case-control design was employed in 33 PTSD patients and 33 healthy controls. BIV was tested using beclomethasone dipropionate (1-100 micro g/ml). Vasoconstriction was assessed after 15-18 h. Waking and afternoon salivary cortisol concentrations were measured. BIV ratings were significantly increased in PTSD at beclomethasone concentrations from 10-100 micro g/ml. Salivary cortisol concentrations did not differ between groups or correlate with BIV. Preliminary evidence has been found for increased peripheral glucocorticoid sensitivity in PTSD. Further study is required to replicate this finding and assess its relationship to the pathophysiology of the disorder.
有假说认为,创伤后应激障碍(PTSD)患者表现出糖皮质激素敏感性增加。该研究测试了患有PTSD的女性中倍氯米松诱导的血管收缩(BIV),这是一种外周糖皮质激素敏感性的测量方法。采用病例对照设计,研究对象为33名PTSD患者和33名健康对照者。使用二丙酸倍氯米松(1 - 100微克/毫升)测试BIV。在15 - 18小时后评估血管收缩情况。测量清醒和下午的唾液皮质醇浓度。在倍氯米松浓度为10 - 100微克/毫升时,PTSD患者的BIV评分显著增加。两组之间的唾液皮质醇浓度没有差异,且与BIV无相关性。已发现PTSD患者外周糖皮质激素敏感性增加的初步证据。需要进一步研究来重复这一发现,并评估其与该疾病病理生理学的关系。