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Analysis of the Efficiency of Different Antituberculous Drugs and Approaches to Treat BCG-Induced Granulomatosis in Mice and Abundance and Localization of Mycobacterium tuberculosis in the Liver

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In 3 months after infection with Mycobacterium tuberculosis (MBT) from BCG vaccine, male BALB/с mice received intraperitoneal injections of isonicotinic acid hydrazide, dextrazide, or liposome-encapsulated dextrazide, or inhalation of liposome-encapsulated dextrazide 2 times a week for 6 months. In 6 months, no MBT were detected in macrophages outside granulomas in treated mice. Macrophages containing MBT can incorporate into granulomas and leave them after suppression of MBT persistence. Liposome-encapsulated dextrazide showed the maximum therapeutic efficiency: the total MBT level in granuloma macrophages and volume density of destruction foci in the liver parenchyma decreased by 5.1 and 5.3 times, respectively, in comparison with the corresponding parameters in mice treated with isonicotinic acid hydrazide. Inhalations of liposome-encapsulated dextrazide prevented the destructive processes in liver granulomas due to macrophage migration from granulomas, which reduced granuloma sizes and destructive potential of granuloma lysosomes and therefore improved their diffusion-dependent trophics.

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Authors and Affiliations

  1. Research Institute of Experimental and Clinical Medicine, Federal Research Center of Fundamental and Translational Medicine, Novosibirsk, Russia

    A. M. Sinyavskaya, A. V. Troitskii & A. M. Kovner

  2. Novosibirsk State Medical University, Ministry of Health of the Russian Federation, Novosibirsk, Russia

    V. A. Shkurupy

Authors
  1. A. M. Sinyavskaya
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  2. V. A. Shkurupy
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  3. A. V. Troitskii
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  4. A. M. Kovner
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Corresponding author

Correspondence to A. M. Sinyavskaya.

Additional information

Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 170, No. 8, pp. 205-208, August, 2020

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Sinyavskaya, A.M., Shkurupy, V.A., Troitskii, A.V. et al. Analysis of the Efficiency of Different Antituberculous Drugs and Approaches to Treat BCG-Induced Granulomatosis in Mice and Abundance and Localization of Mycobacterium tuberculosis in the Liver. Bull Exp Biol Med 170, 233–235 (2020). https://doi.org/10.1007/s10517-020-05041-y

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  • DOI: https://doi.org/10.1007/s10517-020-05041-y

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