Antimicrobial Susceptibility Pattern and Mutations of Outer Membrane Porin in Clinical Isolates of Klebsiella pneumoniae

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Bayramnezhad Maryam; GHANE MARYAM; ASADI ELHAM

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Journal Paper

Paper Information

Journal: Scientific Journal of Kurdistan University of Medical Sciences Year:2022 | Volume:27 | Issue:4 (121) Page(s): 13-25

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Information Journal Paper

Title

Antimicrobial Susceptibility Pattern and Mutations of Outer Membrane Porin in Clinical Isolates of Klebsiella pneumoniae

Author(s)

Bayramnezhad Maryam | GHANE MARYAM | ASADI ELHAM | Issue Writer Certificate

Keywords

Klebsiella pneumoniae

Antimicrobial agents

Porin

Drug resistance

Abstract

Background and Aim: Klebsiella pneumoniae is one of the most common causes of community-acquired and nosocomial infections and has acquired numerous resistance mechanisms over time. The aim of this study was to evaluate the antibiotic resistance pattern of clinical isolates of K. pneumoniae and investigate the mutations in Ompk35 Porin as one of the most important mechanisms of resistance to beta-lactam antibiotics. Materials and Methods: In this cross-sectional correlation study, 100 urinary isolates of K. pneumoniae from the patients admitted to Milad Hospital were evaluated. Antibiotic susceptibility testing was performed using disk diffusion method. Using PCR method, ompK35 genes were detected, sequenced and the mutations were identified by use of Mega software (version 3. 7. 3). SPSS software version 20 and Chi-square test were used for data analysis. Results: The highest resistance rate belonged to amikacin (74%) followed by levofloxacin (69%). Resistance rates to cefepime, gentamicin, ciprofloxacin, meropenem, and ceftriaxone were 62, 58, 53, 41, and 35%, respectively. The highest sensitivity rate belonged to imipenem (80%). Numerous mutations were observed in the Ompk35 Porin encoding genes. Among the isolates, 70% harbored mutations in Ompk35 protein and two isolates had five mutations simultaneously. There was no significant relationship between resistance to the antibiotics and gender in our study (P>0. 05). Conclusion: Our findings indicated a high prevalence rate of antibiotic resistance and high frequency of Porin mutations among K. pneumoniae isolates. Also, the presence of similar mutations in the isolates suggests that they may have a common origin.

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APA: Copy

Bayramnezhad, Maryam, GHANE, MARYAM, & ASADI, ELHAM. (2022). Antimicrobial Susceptibility Pattern and Mutations of Outer Membrane Porin in Clinical Isolates of Klebsiella pneumoniae. SCIENTIFIC JOURNAL OF KURDISTAN UNIVERSITY OF MEDICAL SCIENCES, 27(4 (121) ), 13-25. SID. https://sid.ir/paper/1084701/en

Vancouver: Copy

Bayramnezhad Maryam, GHANE MARYAM, ASADI ELHAM. Antimicrobial Susceptibility Pattern and Mutations of Outer Membrane Porin in Clinical Isolates of Klebsiella pneumoniae. SCIENTIFIC JOURNAL OF KURDISTAN UNIVERSITY OF MEDICAL SCIENCES[Internet]. 2022;27(4 (121) ):13-25. Available from: https://sid.ir/paper/1084701/en

IEEE: Copy

Maryam Bayramnezhad, MARYAM GHANE, and ELHAM ASADI, “Antimicrobial Susceptibility Pattern and Mutations of Outer Membrane Porin in Clinical Isolates of Klebsiella pneumoniae,” SCIENTIFIC JOURNAL OF KURDISTAN UNIVERSITY OF MEDICAL SCIENCES, vol. 27, no. 4 (121) , pp. 13–25, 2022, [Online]. Available: https://sid.ir/paper/1084701/en

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