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Racial Provocation Induces Cortisol Responses in African-Americans

Open Journal of Medical Psychology 2013年第4期2卷 151-157页

作者： Ali A. Weinstein Angela Termini Joshua B. Kazman Stacey A. Zeno preetha abraham Patricia A. Deuster Center for the Study of Chronic Illness and Disability George Mason University Fairfax USA Department of Military and Emergency Medicine Uniformed Services University of the Health Sciences Bethesda USA

Purpose: To examine salivary cortisol responses to a racially-charged stimulus in a group of African-American individuals. Methods: A nonrandom sample of 245 (age: 43.8 ± 11.1 years;64% female) African-American individuals was recruited by advertisements. Specifically, salivary cortisol was assessed prior to and after being exposed to a racially-charged movie clip. In addition, the salivary cortisol was assessed in?the morning and evening of the day following exposure to the racially-charged movie clip. Results: A statistically significant increase in cortisol was found (P 0.005) in the whole sample. High cortisol responders (highest tertile) and low cortisol responders (lowest tertile) were compared. The high cortisol responders had an elevated cortisol level the following morning (P 0.05) that abated by the evening sample (P > 0.20). In addition, the high cortisol responders who were younger, had lower waist to hip ratios, and experienced less lifetime discrimination than the low cortisol responders (P’s 0.05). Conclusions: The findings of an increase in cortisol in response to a racial provocation may provide a potential explanatory factor for the increased rates of cardiovascular disease in African-American individuals.

关键词： Mental Stress Racial Stressors Ethnicity Cardiovascular Disease

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