NDM-beta-lactamase-1: Where do we stand?

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Abstract

Multidrug-resistant (MDR) Gram-negative bacilli (GNB) have been playing havoc in the field of nosocomial as well as community-acquired infections. Of particular concern are the carbapenem-resistant GNBs, belonging to Enterobacteriaceae and encoding for New Delhi metallo-beta-lactamase-1 (NDM-1) gene. These strains spread rapidly and horizontally in the population, thus exhibiting MDR traits as these can harbour several resistance encoding genes to almost all antimicrobial groups. Several predisposing factors are responsible towards its spread, viz. excessive antibiotic usage, improper aseptic conditions by healthcare workers, lack of awareness, abruptly discontinuing medication course, alternative medications and vector-borne factors contributing to the unchecked harbouring of these super bugs in India. Thus, a bugle call has already been sounded worldwide especially in India, where the country has taken serious cognizance to build up strategy via implementation of several national programs to combat antimicrobial resistance covering human, animal, agriculture and environmental aspects. As there is an exponential rise in variants of NDM-1 harbouring strains, molecular epidemiological investigations of these strains using genotyping techniques are of paramount importance for a better understanding of this rampant spread and curbing resistance thereafter. This review explores the urgent need to develop a cost-effective, rapid molecular assay, viz. the loop-mediated isothermal amplification method for field detection of MBL harbouring bacterial strains, especially NDM-1 and its variants, thus targeting specific carbapenemase genes at a grass root level even to the remote and rural regions of the country.

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APA

Bose, P., Rangnekar, A., & Desikan, P. (2022, February 1). NDM-beta-lactamase-1: Where do we stand? Indian Journal of Medical Research. Wolters Kluwer Medknow Publications. https://doi.org/10.4103/ijmr.IJMR_685_19

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