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332674

Evaluation of chlorhexidine and povidone iodine activity against biofilm forming <i>Staphylococcus epidermidis</i> clinical isolates

Article

Last updated: 25 Dec 2024

Subjects

-

Tags

Medical microbiology

Abstract

Background: Staphylococcus epidermidis (S. epidermidis) has emerged as a major etiological factor in implant-related infections, primarily due to its biofilm forming ability. These biofilms enhances bacterial resistance to antimicrobial agents. Aim: This study aimed to detect and characterize drug-resistant S. epidermidis strains in clinical samples obtained from Menoufia University Hospitals, with evaluating their biofilm-forming ability and assessing the antimicrobial activity of chlorhexidine and povidone iodine. Methodology: Drug-resistant S. epidermidis strains were identified using the Vitek2 system and their biofilm producing ability was determined. The presence of biofilm-related genes (icaA and icaD) was confirmed through polymerase chain reaction (PCR). Multi-drug resistant S. epidermidis isolates capable of biofilm formation were exposed to varying concentrations of chlorhexidine (0.025%, 0.035%, 0.05%, 0.12%) and povidone iodine (1.5%, 3.5%, 7.5%, 10%) for different exposure times. Results: Of 354 clinical isolates, 75 (21.2%) were identified as drug-resistant S. epidermidis using Vitek2 system. Biofilm production was observed and confirmed by the presence of icaA / icaD genes among 61-isolates. Chlorhexidine demonstrated significant effectiveness in vitro at concentration of 0.05% with a short exposure time of 1 minute. In contrast, povidone iodine required higher concentrations and prolonged exposure times to exhibit antibacterial activity. Conclusion: Chlorhexidine was an effective antimicrobial agent against S. epidermidis, particularly when used at clinically available concentrations (0.05%) with short exposure time, whereas povidone-iodine required higher concentrations with prolonged exposure times. Further investigations are warranted to optimize the use of these antiseptics.

DOI

10.21608/mid.2023.240761.1631

Keywords

<i>S. epidermidis</i>, Biofilm, resistance, chlorhexidine, povidone iodine

Authors

First Name

amal

Last Name

Makled

MiddleName

Fathalla

Affiliation

Medical Microbiology and Immunology Department, Faculty of Medicine, Menoufia University, Shebin El-kom32512, Egypt.

Email

amalmakled@msn.com

City

-

Orcid

0000-0002-2046-537X

First Name

Mohamed

Last Name

Ghareib

MiddleName

Medhat

Affiliation

Botany and Microbiology Department, Faculty of Science, Menoufia University, Shebin El-kom32512, Menoufia, Egypt

Email

gharieb2000@yahoo.com

City

-

Orcid

0000-0002-3183-2083

First Name

Sahar

Last Name

Ali

MiddleName

-

Affiliation

Medical Microbiology and Immunology Department, Faculty of Medicine, Menoufia University, Shebin El-kom32512, Egypt.

Email

drsaharali2020@gmail.com

City

-

Orcid

0000-0003-3885-0388

First Name

Mostafa

Last Name

Sharweed

MiddleName

Mahmoud

Affiliation

Botany and Microbiology Department, Faculty of Science, Menoufia University, Shebin El-kom32512, Menoufia, Egypt

Email

msherwed23@science.menofia.edu.eg

City

-

Orcid

0009-0009-1320-7151

First Name

Asmaa

Last Name

Sleem

MiddleName

shaban

Affiliation

Medical Microbiology and Immunology Department, Faculty of Medicine, Menoufia University, Shebin El-kom32512, Egypt.

Email

sasmaashaaban@yahoo.com

City

shebein Alkom

Orcid

-

Volume

5

Article Issue

1

Related Issue

45807

Issue Date

2024-02-01

Receive Date

2023-10-04

Publish Date

2024-02-01

Page Start

190

Page End

200

Print ISSN

2682-4132

Online ISSN

2682-4140

Link

https://mid.journals.ekb.eg/article_332674.html

Detail API

https://mid.journals.ekb.eg/service?article_code=332674

Order

21

Type

Original Article

Type Code

1,157

Publication Type

Journal

Publication Title

Microbes and Infectious Diseases

Publication Link

https://mid.journals.ekb.eg/

MainTitle

Evaluation of chlorhexidine and povidone iodine activity against biofilm forming <i>Staphylococcus epidermidis</i> clinical isolates

Details

Type

Article

Created At

25 Dec 2024