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  • Title: The inhibitory effects of MgSO4 on the multiplication and transcription of mouse hepatitis virus.
    Author: Mizutani T, Hayashi M, Maeda A, Ishida K, Watanabe T, Namioka S.
    Journal: Jpn J Vet Res; 1994 Aug; 42(2):95-102. PubMed ID: 7799568.
    Abstract:
    The multiplication of mouse hepatitis virus (MHV) was inhibited by the treatment of infected cells with MgSO4 at concentrations higher than 50 mM. The inhibition of viral multiplication was more effective with the treatment of cells at the early stage of infection using MgSO4 than at the late stage. Viral adsorption to the cells was not inhibited by MgSO4 and pretreatment of the cells with MgSO4 did not show an inhibitory effect on the RNA synthesis of MHV. The synthesis of viral RNA was inhibited more effectively by the treatment of infected cells with MgSO4 at 0-2 and 2-4 h postinfection (p.i.) than at 4-6 h p.i. The present study suggests that the stage at which viral multiplication is susceptible to MgSO4 may be the early stage of viral transcription and that Mg2+ may be a useful tool for the analysis of the early stage of MHV infection.
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