Beta-lactamase resistance genes in Enterobacteriaceae from Nigeria

Author:

Awosile Babafela B.ORCID,Agbaje MichaelORCID,Adebowale OluwawemimoORCID,Kehinde OlugbengaORCID,Omoshaba EzekielORCID

Abstract

Background: Beta-lactamase genes are one of the most important groups of antimicrobial resistance genes in human and animal health. Therefore, continuous surveillance of this group of resistance genes is needed for a better understanding of the local epidemiology within a country and global dissemination.Aim: This review was carried out to identify different beta-lactamase resistance genes reported in published literature from Nigeria.Methods: Systematic review and meta-analysis was carried out on eligible Nigerian articles retrieved from electronic literature searches of PubMed®, African Journals Online, and Google Scholar published between January 1990 and December 2019. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses method was adopted to facilitate clarity and transparency in reporting review findings.Results: Fifty-seven articles were included. All beta-lactamases reported were detected from Gram-negative bacteria, particularly from Enterobacteriaceae. Thirty-six different beta-lactamase genes were reported in Nigeria. These genes belong to the narrow-spectrum, AmpC, extended-spectrum and carbapenemase beta-lactamase resistance genes. The pooled proportion estimate of extended-spectrum beta-lactamase genes in Nigeria was 31% (95% confidence interval [CI]: 26% – 36%, p  0.0001), while the estimate of the blaCTX-M-15 gene in Nigeria was 46% (95% CI: 36% – 57%, p  0.0001). The proportion estimate of AmpC genes was 32% (95% CI: 11% – 52%, p  0.001), while the estimate for carbapenemases was 8% (95% CI: 5% – 12%, p  0.001).Conclusion: This study provides information on beta-lactamase distribution in Nigeria. This is necessary for a better understanding of molecular epidemiology of clinically important beta-lactamases, especially the extended-spectrum beta-lactamases and carbapenemases in Nigeria. 

Publisher

AOSIS

Subject

Clinical Biochemistry,Medical Laboratory Technology,Public Health, Environmental and Occupational Health

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