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International journal of clinical and experimental pathology

An enterovirus 71 strain causes skeletal muscle damage in infected mice.


PMID 26097530

Abstract

To study the target organs for enterovirus 71 (EV71) in infected suckling mice. 5-day-old BALB/c suckling mice were infected with an EV71 strain. Tissues of the infected mice were processed for histopathological examination, including immunohistochemistry, in situ hybridization, ultrastructural observation. Some mice developed limb paralysis, trouble walking and loss of balance. Results of the histopathological study showed that a large amount of EV71 existed in the skeletal muscle tissues, accounting for the damage of the skeletal muscles. The EV71 clinical isolate used in this study presented evident myotropism. Skeletal muscles are important target organs for EV71 in the infected suckling mice. To clarify the relationship between EV71 infection and muscle diseases may contribute to a better understanding of the pathogenesis of EV71.