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. 1999 May;56(5):450-6.
doi: 10.1001/archpsyc.56.5.450.

Stress-related Changes in Proinflammatory Cytokine Production in Wounds


Stress-related Changes in Proinflammatory Cytokine Production in Wounds

R Glaser et al. Arch Gen Psychiatry. .


Background: Several recent studies have shown that stress markedly delays wound healing. This study assessed the relationship between psychological stress and the secretion of proinflammatory cytokines at an actual wound site, providing in vivo data on the development of local immune responses that are central in the early stages of wound repair.

Methods: To study the dynamics of inflammation, skin blisters were induced on the forearm of 36 women (mean age, 57 years) by suction. After the blister roofs were removed, a plastic template was taped to the arm, and wells were filled with 70% autologous serum in buffer. Specimens were aspirated from blister chamber wells 5 and 24 hours after wounding.

Results: Women with higher perceived stress scores demonstrated significantly lower levels of 2 key cytokines--interleukin 1alpha and interleukin 8--at wound sites. In addition, subjects who had low levels of both cytokines after 24 hours reported more stress and negative affect, and they had higher levels of salivary cortisol than those who had high cytokine levels.

Conclusion: Consistent with the evidence that stress delays wound healing, these data suggest a possible mechanism: psychological stress has measurable effects on proinflammatory cytokine production in the local wound environment.

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