Volume 11, Issue 1 (Vol.11 No.1 Apr 2022)                   rbmb.net 2022, 11(1): 166-175 | Back to browse issues page

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Muhammed Ali R A, Ridha Alshara J M, Saaid Tuwaij N S, Baker Al-khilkhali H J. Study of Antibacterial Chemical Substances and Molecular Investigation among Sulfamethoxazole-trimethoprim (SXT)- Resistant Escherichia coli Isolates. rbmb.net. 2022; 11 (1) :166-175
URL: http://rbmb.net/article-1-893-en.html
Faculty of Science, University of Kufa, Kufa, Iraq.
Abstract:   (941 Views)
Background: Escherichia coli (E. coli) remains one of the leading agents of urinary tract infection (UTIs), it has become resistant to many drugs. Current work aimed to evaluate some chemical substances as antibacterial agents and molecular study of virulence factors associated with UTIs.

Methods: This work involved 133 urine specimens obtained from females’ patients suffering from UTIs, Methods of well diffusion and disk diffusion were achieved to assay the effect of some chemical substances and antibiogram profiles toward Sulfamethoxazole-trimethoprim (SXT)-resistant E. coli respectively. Virulence genes were done based on the technique of Polymerase Chain Reaction (PCR).

Results: The results recorded 49/133 (36.84%) E. coli among women suffering UTIs, 28/49 (57.14%) were resistant to SXT drug. imipenem, meropenem, and nitrofurantoin were recorded more effectively. Chemicals substances at the concentration 0.3 (g/ml) recorded percentages of inhibition, reaching 9.143±1.442, 15.36±0.5914, and 21.82±0.8699 for NaHCO3, Ch4c, and Viroxide Super™ respectively. PCR demonstrated that 28/28 (100%) of SXT-resistant E. coli isolates were harbored Sul-2, FeoB and PapC genes, while 14/28 (50%), 15/28 (53.57%), 19/28 (67.85%) and 26/28 (92.85%) in U250 (pet), FumC, Sul-1 and IutA genes, respectively. Sul-3 gene was not observed.

Conclusions: Observed a high percentage of E. coli that were resistant to SXT drug, and having several virulence genes, poses a real threat, it requires a real pause to create substitutions to limit the spreading of this threat.
Full-Text [PDF 373 kb]   (391 Downloads)    
Type of Article: Original Article | Subject: Microbiology
Received: 2022/03/22 | Accepted: 2022/03/23 | Published: 2022/05/26

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