Sohni Naeem1, Hazrat Bilal2, Hafsah Muhammad1, Muhammad Asif Khan1, Fareeha Hameed1, Sher Bahadur3, Tayyab Ur Rehman4. 1. Institute of Basic Medical Sciences, Khyber Medical University, Peshawar, Pakistan. 2. Faculty of Health Sciences, Institute of Physical Sciences and Information Technology, Anhui University, Hefei PR, China. 3. Department of Animal Health, University of Agriculture, Peshawar, Pakistan. 4. Department of Animal Health, University of Agriculture, Peshawar, Pakistan. tayyab.ibms@kmu.edu.pk.
Abstract
INTRODUCTION: Enterobacteriaceae such as Escherichia coli and Klebsiella pneumoniae are the most prominent bacterial species resistant to almost all commonly used antibiotics. Carbapenem is one of the last resort drugs for treating such emerging multidrug-resistant bacteria. This study aimed to detect carbapenem-resistant blaNDM-1 gene in ESBL producing E. coli and K. pneumoniae isolates. METHODOLOGY: A total of 190 E. coli and 350 K. pneumoniae isolates were screened for extended spectrumβ-lactamase (ESBL), carbapenemase and metallo β-lactamase (MBL) production via double-disk synergy test (DDST), modified Hodge test and combined-disk diffusion method. The blaNDM-1 gene was detected by PCR and confirmed via Sanger sequencing method. RESULTS: Of the 540 isolates tested, 71.8% were found to be multidrug-resistant. Overall rate of ESBL-positive isolates were 57.89% E. coli and 31.42% K. pneumoniae. Among ESBL positive isolates, 49.09% E. coli and 40% K. pneumoniae were positive for carbapenemase production whereas MBL production was detected in 29% E. coli and 22% K. pneumoniae isolates. In MBL positive isolates, (37%) E. coli and (40%) K. pneumoniae isolates harboured blaNDM-1 gene. The pair-wise DNA was aligned with the NDM-1 sequence from GenBank. The alignment score was 243 and the blast nucleotide sequencing results showed 97% sequence similarity with the sequences in GenBank for the blaNDM-1 gene. CONCLUSIONS: The blaNDM-1 gene was found to be the most prevalent in urine samples. There is a dire need to conduct screening tests in hospitals and communities to find out the exact prevalence of the blaNDM-1 spread in our population. Copyright (c) 2021 Sohni Naeem, Hazrat Bilal, Hafsah Muhammad, Muhammad Asif Khan, Fareeha Hameed, Sher Bahadur, Tayyab Ur Rehman.
INTRODUCTION: Enterobacteriaceae such as Escherichia coli and Klebsiella pneumoniae are the most prominent bacterial species resistant to almost all commonly used antibiotics. Carbapenem is one of the last resort drugs for treating such emerging multidrug-resistant bacteria. This study aimed to detect carbapenem-resistant blaNDM-1 gene in ESBL producing E. coli and K. pneumoniae isolates. METHODOLOGY: A total of 190 E. coli and 350 K. pneumoniae isolates were screened for extended spectrumβ-lactamase (ESBL), carbapenemase and metallo β-lactamase (MBL) production via double-disk synergy test (DDST), modified Hodge test and combined-disk diffusion method. The blaNDM-1 gene was detected by PCR and confirmed via Sanger sequencing method. RESULTS: Of the 540 isolates tested, 71.8% were found to be multidrug-resistant. Overall rate of ESBL-positive isolates were 57.89% E. coli and 31.42% K. pneumoniae. Among ESBL positive isolates, 49.09% E. coli and 40% K. pneumoniae were positive for carbapenemase production whereas MBL production was detected in 29% E. coli and 22% K. pneumoniae isolates. In MBL positive isolates, (37%) E. coli and (40%) K. pneumoniae isolates harboured blaNDM-1 gene. The pair-wise DNA was aligned with the NDM-1 sequence from GenBank. The alignment score was 243 and the blast nucleotide sequencing results showed 97% sequence similarity with the sequences in GenBank for the blaNDM-1 gene. CONCLUSIONS: The blaNDM-1 gene was found to be the most prevalent in urine samples. There is a dire need to conduct screening tests in hospitals and communities to find out the exact prevalence of the blaNDM-1 spread in our population. Copyright (c) 2021 Sohni Naeem, Hazrat Bilal, Hafsah Muhammad, Muhammad Asif Khan, Fareeha Hameed, Sher Bahadur, Tayyab Ur Rehman.
Entities:
Keywords:
Carbapenemase; E. coli; Extended-spectrum-β-lactamase; K. pneumoniae; Metallo-β-lactamase; blaNDM-1
Authors: Luciana Sampaio Lima; Aldo Aparecido Proietti-Junior; Yan Corrêa Rodrigues; Marcelo Cleyton da Silva Vieira; Luana Nepomuceno Gondim Costa Lima; Cintya de Oliveira Souza; Verônica Dias Gonçalves; Marcelo de Oliveira Lima; Dália Dos Prazeres Rodrigues; Karla Valéria Batista Lima Journal: Microorganisms Date: 2022-04-13