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Pterostilbene, a Potential MCR-1 Inhibitor That Enhances the Efficacy of Polymyxin B

Antimicrobial Agents and Chemotherapy, ISSN: 1098-6596, Vol: 62, Issue: 4
2018
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Pterostilbene, a Potential MCR-1 Inhibitor That Enhances the Efficacy of Polymyxin B [Antiviral Agents]

Yonglin Zhou a , Shui Liu a , Tingting Wang a , Hui Li b , Shusheng Tang b , Jianfeng Wang a , Yang

Article Description

We characterized the synergistic effect produced between pterostilbene and polymyxin B (fractional inhibitory concentration [FIC] index = 0.156 or 0.188) against MCR-producing Escherichia coli strains of both human and animal origins. The time-killing assays showed that either pterostilbene or polymyxin B failed to eradicate the mcr-1- and NDM-positive E. coli strain ZJ487, but the combination eliminated the strain by 1 h postinoculation. The survival rate of mice after intraperitoneal infections was significantly enhanced from 0% to 60% in the group in which combination therapy was applied.

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