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Journal of Medical Bacteriology، جلد ۶، شماره ۳-۴، صفحات ۳۱-۴۳
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عنوان انگلیسی Evaluation of Antimicrobial Activity of Probiotic Lactobacillus Strains against Growth and Urease Activity of Proteus spp.
چکیده انگلیسی مقاله Background:    Nowadays, the use of probiotic bacteria for the prevention and treatment of urinary tract infections is growing. Lactobacillus, as probiotic bacterial genus, is well known for its benefits for the human health. Methods:      The effects of partially purified antimicrobial compounds (bacteriocins and biosurfactants) of Lactobacillus strains was assessed and their capacity to in vitro inhibit growth and urease production of various strains of Proteus spp, was studied. Inhibition of the urease production of Proteus spp. at sub-MIC levels was screened using spectrophotometry method.   Results:   Results revealed that semi-purified bacteriocins of L. acidophilus and L. plantarum showed a greater inhibitory activity on the bacterial urease, compared to biosurfactants of L. rhamnosus, L. casei and L. fermentum (P < 0.05). Conclusion:    It can be concluded that bacteriocins may affect Proteus pathogenesis by inhibition of the bacterial urease activity and therefore eliminate the stone formation by these bacteria.
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نویسندگان مقاله | Leila Goudarzi
Department of Microbiology, Faculty of Sciences, Alzahra University, Tehran, Iran.&#xD; Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran.


| Rouha Kermanshahi
Department of Microbiology, Faculty of Sciences, Alzahra University, Tehran, Iran.


| Zahra Moosavi-Nejad
Department of Biology, Faculty of Basic Sciences, Alzahra University, Tehran, Iran.


| Mohammad Mehdi Soltan Dalla
Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran.&#xD; Division of Food Microbiology, Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran..
نشانی اینترنتی http://jmb.tums.ac.ir/index.php/jmb/article/view/335
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