Evidence map›Paper›PMID 33882823›Full record

ArticleBMC microbiology2021

Metallo-β-lactamase and AmpC genes in Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa isolates from abattoir and poultry origin in Nigeria.

Chika Ejikeugwu, Okoro Nworie, Morteza Saki, Hussein O M Al-Dahmoshi, Noor S K Al-Khafaji, Chika Ezeador, Emmanuel Nwakaeze, Peter Eze, Eniola Oni, Chidiebere Obi and 3 more

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
1.8field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 41 citations in OpenAlex.

  1. Pooled it
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  12. Drug resistance and pathogenicity characteristics ofFrontiers in veterinary science · 2025
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  14. CombatingFrontiers in cellular and infection microbiology · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 8 institutions in 3 countries.

Chika EjikeugwuDepartment of Applied Microbiology, Ebonyi State University, Abakaliki, Nigeria.
Okoro NworieDepartment of Biological Sciences, Alex Ekwueme Federal University, Ndufu-Alike Ikwo, Ikwo, Nigeria.
Morteza SakiDepartment of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. mortezasaki1981@gmail.com.
Hussein O M Al-DahmoshiBiology Department, College of Science, University of Babylon, Hilla City, Babylon Province, Iraq.
Noor S K Al-KhafajiBiology Department, College of Science, University of Babylon, Hilla City, Babylon Province, Iraq.
Chika EzeadorDepartment of Medical Microbiology & Parasitology, Nnamdi Azikiwe University, Awka, Nigeria.
Emmanuel NwakaezeDepartment of Applied Microbiology, Ebonyi State University, Abakaliki, Nigeria.
Peter EzeDepartment of Environmental Health Science, Nnamdi Azikiwe University, Awka, Nigeria.
Eniola OniDepartment of Microbiology, Federal University of Agriculture, Abeokuta, Nigeria.
Chidiebere ObiDepartment of Microbiology, Federal University, Birnin Kebbi, Nigeria.
Ifeanyichukwu IrohaDepartment of Applied Microbiology, Ebonyi State University, Abakaliki, Nigeria.
Charles EsimoneDepartment of Pharmaceutical Microbiology and Biotechnology, Nnamdi Azikiwe University, Awka, Nigeria.
Michael U AdikwuDepartment of Pharmaceutics, University of Nigeria, Nsukka, Nigeria.
Ebonyi State University · NGNnamdi Azikiwe University · NGUniversity of Babylon · IQAhvaz Jundishapur University of Medical Sciences · IRAlex Ekwueme Federal University, Ndufu-AlikeFederal University Birnin Kebbi · NGFederal University of Agriculture · NGUniversity of Nigeria · NG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGram-negative bacteria (GNB) including Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae represent the most relevant reservoir of resistance genes such as metallo-β-lactamase (MBL) and AmpC genes that give them the undue advantage to resist antimicrobial onslaught. This study aimed to investigate the occurrence of MBL (bla

resultsIn total, 370 isolates were collected from abattoir tables (n = 130), anal region of cows (n = 120), and the cloacae of poultry birds (n = 120). The test isolates showed high rate of resistance to cephalosporins and carbapenems. The MBLs were phenotypically detected in 22 E. coli, 22 P. aeruginosa, and 18 K. pneumoniae isolates using combined disc test (CDT). However, only 11 E. coli, 24 P. aeruginosa, and 18 Klebsiella pneumoniae isolates were phenotypically confirmed to be AmpC producers using cefoxitin-cloxacillin double disk synergy test (CC-DDST). MBL encoding genes (particularly the bla

conclusionsOur study showed the circulation of MBL and AmpC genes in GNB from abattoir and poultry origin in Nigeria. Adoption of regular control policies is necessary to reduce the spread of these species as soon as possible, especially in poultry and slaughterhouses.

Indexed as

AbattoirsAnimalsBacterial Proteinsbeta-LactamasesEnterobacteriaceaeEscherichia coliKlebsiella pneumoniaeNigeriaPoultryPseudomonas aeruginosaAmpC beta-lactamasesBacterial Proteinsbeta-LactamasesAmpCAntibiotic resistanceGram-negative bacteriaMetallo-β-lactamaseMultidrug resistanceNigeria

Identifiers

PMID33882823
PMCPMC8059301
OpenAlexW3154092914

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.