Intranasal infection of outbred male mice with influenza A/H5N1 A/goose/Krasnoozerskoye/627/05 virus led to high (85%) mortality of animals. Morphological studies of liver specimens showed destructive changes in the parenchyma (93.5% hepatocytes), caused by long persistence of the virus in the liver. The virus persistence was conjugated with activation of cellular immunity, manifesting by an increase in the counts of cells with high expression of proinflammatory cytokines (TNF-α) and lysosomal enzymes (lysozyme, cathepsin D). Injections of oxidized dextran 3 and 1 days before infection reduced mortality and 2-fold attenuated destructive changes in the liver, presumably due to prevention of virus penetration into the target cells, modulation of immune reactions, and stimulation of reparative plastic processes.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 158, No. 10, pp. 485-490, October, 2014
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Shkurupy, V.A., Potapova, O.V., Sharkova, T.V. et al. Effects of Preventive Administration of Oxidized Dextran on Liver Injury and Reparative Regeneration in Mice Infected with Influenza A/H5N1 Virus. Bull Exp Biol Med 158, 483–488 (2015). https://doi.org/10.1007/s10517-015-2790-3
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DOI: https://doi.org/10.1007/s10517-015-2790-3