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  • Title: [Interferonogenic and antiviral activity of the double-stranded replicative form of phage f2 RNA in tissue culture and on animals].
    Author: Kadyrova AA, Fomina AN, Ershov FI, Novokhatskiĭ AS.
    Journal: Antibiotiki; 1978 Aug; 23(8):741-7. PubMed ID: 210710.
    Abstract:
    Biological activity of a new natural interferon inductor, the replicative RNA form of phage f2 (RFf2) was studied. A possibility of using RFf2 for production of highly active interferon under conditions of superinduction providing an increase in the interferon yield by to 256--512 times as compared to the control samples was shown. The protective interferonogenic and antiviral effect of RFf2 in mice infected with Semliki forest virus (SFV) and tickborne encephalitis virus (TBEV) was studied on administration of the inductor by various routes. It was found that intraperitoneal administration of RFf2 in a dose of 10 gamma per a mouse protected the infected animals from death. It was accompanied by production of up to 1280 units/ml of interferon in the blood serum of the animals. Maximum protection of the animals from death under conditions of the experiment (80 per cent on infection with SFV and 65 per cent on infection with TBEV) was observed when the preparation was administered twice: 4 hours after the infection. Combined use of RFf2 with chemotherapeutics (rimantadine) increased the protective effect both in the tissue culture and in vivo.
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