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  • Title: [Study of the antiviral action of gentamicin].
    Author: Novokhatskiĭ AS, Gerasimova SS.
    Journal: Antibiotiki; 1975 May; 20(5):429-33. PubMed ID: 1225192.
    Abstract:
    Experimental data on the effect of various concentrations of gentamycin on reproduction of VEE and Sindbis viruses in tissue culture are presented. It was found that gentamycin had no cytotoxic effect on the primary tripsinized chick embryon fibroblasts (CEF) when used in doses of 10, 20 or 30 mg/ml and only when used in a dose of 50 mg/ml it induced 50 percent destruction of the cell layer. Multiplication of the VEE and Sindbis viruses in the culture of CEF was inhibited in the presence of gentamycin by 1.5--3.5 lg PFU/ml. Two stages in the virus inhibiting effect of gentamycin were determined on the model of VEE, i. e. the stage of inhibition in the absence of visible damages of the cells and the stage associated with their destruction. The doses of gentamycin higher than 3 mg/ml inhibited in parallel the virus specific synthesis and synthesis of the cell proteins and nucleic acids. At the same time, when gentamycin was used in a dose of 10 mg/ml, no impairement of the cell viability was observed and the cell capacity to produce high titers of the model virus was reduced after incubation without the antibiotic for 24 hours. The antiviral activity of gentamycin were therefore determined by revers inhibition of the cell metabolic activity.
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