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性别和年龄对小鼠自然抵抗圣路易斯脑炎病毒感染的影响。

Influence of sex and age on natural resistance to St. Louis encephalitis virus infection in mice.

作者信息

Andersen A A, Hanson R P

出版信息

Infect Immun. 1974 Jun;9(6):1123-5. doi: 10.1128/iai.9.6.1123-1125.1974.

Abstract

A difference was observed in susceptibility of adult male and female mice to St. Louis encephalitis (SLE) virus as measured by the death rate after intravenous challenge. Female mice that had susceptibility similar to that of males at 2 months of age had increased resistance to SLE virus at 3 and 4 months of age. The increased resistance occurred after sexual maturity, indicating that the resistance factor possibly was related to an aging process in the female. The susceptibility of male mice remained unchanged over the 2- to 4-month period. Neither pregnancy nor castration had any effect on resistance of adult mice to St. Louis encephalitis virus.

摘要

通过静脉注射攻击后的死亡率来衡量,成年雄性和雌性小鼠对圣路易斯脑炎(SLE)病毒的易感性存在差异。2月龄时雌性小鼠的易感性与雄性相似,但在3月龄和4月龄时对SLE病毒的抵抗力增强。抵抗力的增强发生在性成熟之后,这表明抵抗力因素可能与雌性的衰老过程有关。在2至4个月期间,雄性小鼠的易感性保持不变。怀孕和阉割对成年小鼠对圣路易斯脑炎病毒的抵抗力均无任何影响。

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