期刊
PSYCHOSOMATIC MEDICINE
卷 68, 期 2, 页码 238-245出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/01.psy.0000203242.95990.74
关键词
oxytocin; stress; cortisol; hypothalamic adrenocortical axis; hormone therapy
资金
- NCRR NIH HHS [M01 RR000080] Funding Source: Medline
- NIA NIH HHS [AG17678, AG10415] Funding Source: Medline
- NIMH NIH HHS [MH15750] Funding Source: Medline
Objective: Animal research suggests that oxytocin (OT) plays a role in stress responses and that in females, this role is modulated by estrogen. Yet little is known about the relation of OT to human stress responses. This study was conducted to examine the relations between estrogen activity and OT, identify stressors distinctively associated with elevations in OT, and investigate whether OT is related to cardiovascular and hypothalamic-pituitary-adrenocortical (HPA) activity in a laboratory challenge paradigm. Methods: Seventy-three postmenopausal women who were on hormone therapy (FIT) or not completed questionnaires assessing psychological distress and social relationships and then participated in a laboratory stress challenge (Trier Social Stress Task), during which OT, cortisol, and blood pressure were assessed. Results: HT was significantly associated with higher plasma OT. Controlling for HT, elevated plasma OT was significantly associated with gaps in social relationships, with less positive relationships with a primary partner, and with elevated cortisol levels. OT was not associated with stress reactivity or recovery. Conclusion: In women, plasma OT signals relationship stress and is associated with elevated cortisol;, it does not appear to significantly affect cortisol or blood pressure responses to acute stress.
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