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. 2016 Jun 10;36(3):369–376. doi: 10.1016/S0254-6272(16)30051-6

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© 2016 Traditional Chinese Medicine Periodical Press

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Effect of different dilutions of pure compounds and bioactive fractions from Banlangen (Radix Isatidis) on the viability of MDCK cells pre-infected with 100 TCID50 of influenza virus (FM1)

A: MTT assay; B: cell protection rate; C-F: × 100. C: cell control; D: virus control; E: Ribavirin (1: 4); F: PEP + ALK + OA portion (1: 4). CB: clemastanin B; PEP + ALK + OA: the mixtures of phenylpropanoids, alkaloids and organic acid fractions. Cell control: normal MDCK cells without virus infection and drugs treatment; virus control: cells infected with virus without drug treatments. Error bars represent standard deviation. The asterisks indicate a significant difference between the test samples and the virus control according to Duncan's multiple range tests, ^aP < 0.01.