Abstract Title:

In vitro and in vivo activity of Manuka honey against NDM-1-producing Klebsiella pneumoniae ST11.

Abstract Source:

Future Microbiol. 2018 Jan ;13:13-26. Epub 2017 Dec 11. PMID: 29226698

Abstract Author(s):

Muhammad Usman Qamar, Sidrah Saleem, Mark Alexander Toleman, Muhammad Saqalein, Muhammad Waseem, Muhammad Atif Nisar, Mohsin Khurshid, Zeeshan Taj, Shah Jahan

Article Affiliation:

Muhammad Usman Qamar


AIM: To determine the therapeutic potential of Manuka honey against New Delhi metallo-β-lactamase-1-producing Klebsiella pneumoniae ST11 in vitro and in vivo.

MATERIALS & METHODS: Carbapenamases and metallo-β-lactamases-producing K. pneumoniae ST11 isolated from blood culture was confirmed by VITEK-2® system, matrix-assisted laser desorption ionization-time of flight and multilocus sequence typing, followed by determination of minimum inhibitory concentration (μg/ml) using VITEK-2 system. Genetic analysis of bla NDM-1 was done by PCR, pulsed-field gel electrophoresis and DNA hybridization. In vitro and in vivo efficacy of Manuka honey was performed by microbroth dilution assay and BALB/c mice model respectively.

RESULTS: K. pneumoniae ST11 displayed resistance to commonly used antibiotics. bla NDM-1 was located on 150 and 270kb plasmids. Minimum inhibitory concentration and minimum bactericidal concentration of Manuka honey was 30% (v/v) and substantial reduction of bacterial mean log value (>1 log) was observed in mice. Histological analysis of mice liver and kidneys demonstrated mild to moderate inflammation.

CONCLUSION: Manuka honey can be used as an alternate therapeutic approach for management of New Delhi metallo-β-lactamase-producing pathogens.

Study Type : Animal Study, In Vitro Study

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