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Stress reduces mucosal immunity against herpes simplex virus.(Brief Article)
2002 JUN 12 - (NewsRx.com & NewsRx.net) -- by Maria G. Essig, MS, ELS, senior medical writer - Psychological stress has been shown to inhibit the protective effects of vaccination against herpes simplex virus (HSV) in mice mucosa.
"Psychological stress has been shown to affect many components of the innate and adaptive immune responses to a variety of pathogens including herpes simplex virus," said study coauthors R. H. Bonneau and K. M. Wonnacott from the Hershey Medical Center in Hershey, Pennsylvania. "However, there is a scarcity of experimental evidence that stress affects mucosal immunity."
Investigators used a murine model in which HSV-specific immunity is conferred only by one type of T lymphocyte (memory cytotoxic T lymphocyte, CTLm). The CTLm are activated upon vaccination with a recombinant vaccinia (smallpox) virus.
The mice were vaccinated and then challenged with a lethal dose of HSV introduced intravaginally or intranasally. The ability of the CTLm to protect against infection in stressed mice was diminished when compared with nonstressed mice. However, the CTLm impairment was notable only in the ...
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Source: HighBeam Research, Stress reduces mucosal immunity against herpes simplex virus.(Brief...