404111

Molecular Characterization of Carbapenem-resistant K. pneumoniae causing respiratory tract infections, and the antimicrobial impact of two herbal essential oils

Article

Last updated: 13 Jan 2025

Subjects

-

Tags

Microbiology and Immunology

Abstract

Klebsiella pneumoniae (K. pneumonia (is a key pathogen that can cause pneumonia, severe catheter-associated pneumoniae, respiratory failure, and other infections, particularly in immunocompromised individuals. Multidrug-resistant (MDR) K. pneumoniae has become more common due to overuse of antibiotics that led to a major threat to public health. The current study aimed to determine the resistance profile of K. pneumoniae causing respiratory tract infections (RTI) and to detect the frequency of carbapenem resistance encoding genes by PCR, along with the determination of antibacterial activity of thyme (TEO) and marjoram essential oils (MEO) on the MDR K. pneumoniae isolates. The antibiotic susceptibility patterns of the K. pneumoniae isolates were determined using the Kirby Bauer disc diffusion agar method. The frequency of carbapenem resistance encoding genes including (blaKPC, blaOXA, blaIMP, blaNDM, and blaVIM) was determined using PCR. The antimicrobial activity of TEO and MEO was assessed by determination of their minimum inhibitory concentration (MIC). Phenotypic detection of the resistance profile of 19 K. pneumoniae isolates causing RTI revealed that 100% of isolates were MDR. The frequency of carbapenem resistance encoding genes was as follows; blaNDM (100%), blaOXA (94.7%), and blaIMP (31.6%), while the frequency of blaVIM, and blaKPC was 21% and 5.26%. MEO showed higher antimicrobial activity than TEO. MIC of MEO was 0.244 µL/mL for 10.5% of MDR K. pneumoniae isolates while MIC of TEO was 3.9 µL/mL for 5.3% of isolates.

DOI

10.21608/aijpms.2024.268892.1257

Keywords

Carbapenem resistance, Klebsiella pneumoniae, multidrug resistance, respiratory tract, Thyme essential oil, Marrjoram essential oil

Authors

First Name

Aya

Last Name

Payoumi

MiddleName

Nassef

Affiliation

Department of Microbiology and Immunology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt.

Email

dr.ayanassef@gmail.com

City

Cairo

Orcid

0009-0003-4253-5142

First Name

Nagwan

Last Name

El Menofy

MiddleName

Galal

Affiliation

Department of Microbiology and Immunology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt.

Email

nagwan.elmenofy@azhar.edu.eg

City

Cairo

Orcid

0000-0001-6928-9170

First Name

Mohamed

Last Name

Eissa

MiddleName

A.

Affiliation

Biotechnology Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt. Zhejiang BioAsia Institute of Life Sciences, Zhejiang, China

Email

ma.eissa@azhar.edu.eg

City

cairo

Orcid

0000-0002-5109-1024

First Name

Amany

Last Name

El-Sharif

MiddleName

-

Affiliation

Department of Microbiology and Immunology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt. Vice President of Pan African University, Regional Director of Association of African Universities

Email

amanye@africa-union.org

City

Cairo

Orcid

0000-0003-2988-9803

Volume

5

Article Issue

1

Related Issue

52728

Issue Date

2025-01-01

Receive Date

2024-02-09

Publish Date

2025-01-01

Page Start

236

Page End

249

Print ISSN

2735-4598

Online ISSN

2735-4601

Link

https://aijpms.journals.ekb.eg/article_404111.html

Detail API

http://journals.ekb.eg?_action=service&article_code=404111

Order

20

Type

Original research articles

Type Code

1,562

Publication Type

Journal

Publication Title

Azhar International Journal of Pharmaceutical and Medical Sciences

Publication Link

https://aijpms.journals.ekb.eg/

MainTitle

Molecular Characterization of Carbapenem-resistant K. pneumoniae causing respiratory tract infections, and the antimicrobial impact of two herbal essential oils

Details

Type

Article

Created At

13 Jan 2025