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  • Title: [Ultrastructural changes in the central nervous system of mice in tick-borne encephalitis].
    Author: Erman BA, Tulakina LG, Bronitskaia EIu, Aleksandrova NN.
    Journal: Arkh Patol; 1978; 40(4):30-8. PubMed ID: 678153.
    Abstract:
    Tick-borne encephalitis virus is localized in nerve cells and intracellular spaces. According to the nature of ultrastructural changes, the pathological process in nerve cells may be divided into three stages connected with the stages of virus reproduction. In the first stage, the protein-synthesizing systems of the cell are degraded. In the second stage specific virus inclusions form in the cell cytoplasm as aggregates of mature and immature virions alongside with destruction of ultrastructures and growth of smooth membranes. In the third stage degradation of neurons is accompanied by necrobiosis and discomplexation of the surrounding glial elements, processes, cells of the inflammatory infiltrate and capillary walls. A certain combination of nonspecific changes in organelles of various cells with viral inclusions makes the ultrastructural picture of the focus of lesions in tick-borne encephalitis sufficiently characteristic for differential pathological diagnosis.
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