Document Type : Original Paper
1 1 Department of Clinical Sciences, Faculty of Specialized Veterinary Sciences, Science and Research Branch, Islamic Azad University, Tehran, Islamic Republic of Iran
2 2 Department of Basic Sciences, Faculty of Veterinary Medicine, Science and Research Branch, Islamic Azad University, Tehran, Islamic Republic of Iran
3 3 Department of Pathology, Faculty of Specialized Veterinary Sciences, Science and Research Branch, Islamic Azad University, Tehran, Islamic Republic of Iran
4 4 Department of Microbiology, Faculty of Basic Science, Saveh Branch, Islamic Azad University, Markazi, Islamic Republic of Iran
Antibiotic resistance is among the most concerning issues worldwide. Currently, the use of natural alternatives with improved therapeutic effects and fewer complications than common therapies is considered a novel therapeutic approach to care urinary tract infections (UTI). In this research, we evaluated the prospective activity of Oliveria decumbens vent essential oil (ODEO) in the treatment of Escherichia coli-induced cystitis. The antibacterial properties of ODEO were investigated using standard microdilution assays against E. coli. To induce cystitis, 1.5 ×108 CFU/ml of E. coli (ATCC 700928) was injected into the bladder of Wistar rats, and then they were prescribed ODEO and gentamicin. The histopathological parameters of the bladders were tested at the end of the study. The MIC and MBC of the ODEO against E.coli were 0.54 μl/ml and 1.024 μl/ml respectively. In the infected group with no treatment, the infiltration of inflammatory cells and the thickness of bladder tissue were increased notably, however in the groups treated with ODEO, especially at higher doses, the parameters were significantly decreased (p<0.01). The ODEO efficacy was comparable to gentamicin in the reduction of the bacterial count. In addition, after administration of the ODEO, inflammation, fibrosis, and thickness of epithelium also decreased in a dose-dependent manner (p<0.01). In conclusion, treatment with ODEO which added as drinking supplement or injected subcutaneously resulted to the renal clearance of pathogens in study rats.
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