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Isolation, characterization, and antibiotic sensitivity pattern of Gram-negative bacteria causing chronic bacterial prostatitis

Article scientifique 2022 Anglais

Résumé

Abstract Background: Bacterial prostatitis (BP) is an infection of the prostate gland, it can be acute (ABP) or chronic (CBP) and if not treated appropriately, it can result in significant morbidity.Results: In this study, expressed prostate secretion from 10 patients that are diagnosed with chronic bacterial prostatitis at Ain-Shams hospital, Egypt are used to isolate the common causative bacteria for CBP. Results of this study indicated that Gram negative bacteria were predominant since 54 Gram-ve bacterial isolates were obtained out of the total 62 isolates. Gram-ve bacterial isolates were grouped according to their oxidase test results and to lactose fermentation capability into three groups. The largest group contained 38 isolates of oxidase negative, lactose fermenters. Five representative isolates of this group were identified biochemically or by 16S rRNA sequence homology to be related to Enterobacter cloacae complex (3 Enterobacter cloacae related strains and 2 Enterobacter kobei related strains). Oxidase positive lactose non-fermentors group contained 9 isolates while oxidase negative lactose non-fermentors group contained 7 isolates. A representative isolate for each of them were identified by 16S rRNA sequence homology to be a strain of Pseudomonas stutzeri and Providencia stuartii respectively. Antibiotic sensitivity pattern of the chosen representative isolates indicated that all of them were sensitive to ciprofloxacin followed by ampicillin while resistance to cefaclor and aztereonam was prevalent. Other tested antibiotics recorded different sensitivity pattern among tested isolates.Conclusions: isolates of Genus Enterobacter sp. included in the E. cloacae complex group represent the most common bacterial pathogen in tested EPS of CBP diagnosed patients, of them Enterobacter cloacae was the most common.

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Mehanni, M., Sayed, O., El‐Gendy, A., Hozayen, W., Mohamed, S. (2022). Isolation, characterization, and antibiotic sensitivity pattern of Gram-negative bacteria causing chronic bacterial prostatitis. https://doi.org/10.21203/rs.3.rs-1993189/v1

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Magda M. Mehanni Ossama M. Sayed Ahmed O. El‐Gendy Walaa G. Hozayen Sahar I. Mohamed

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