@article { author = {Fallahzadeh, M.H. and Noorafshan, A. and Tanideh, N. and Badeli, H.R. and Bazargani, A.}, title = {Effects of Betamethasone and Gentamicin on Renal Scarring Induced by Mannose-Sensitive E Coli Pyelonephritis in Rat}, journal = {Iranian Journal of Medical Sciences}, volume = {29}, number = {3}, pages = {130-133}, year = {2015}, publisher = {Shiraz University of Medical Sciences}, issn = {0253-0716}, eissn = {1735-3688}, doi = {}, abstract = {Background: Pyelonephritis can lead to renal scar. Objective: To evaluate the effects of betamethasone in preventing renal scarring in rat model of pyelonephritis. Methods: Sixty three female Sprague-Dawley rats were divided into seven groups. Group A was the control. Mannose-sensitive E coli was directly inoculated into the left kidney exposed under general anesthesia in groups C–G. Group B received normal saline. Two days after bacterial inoculation, groups C, E and F received gentamicin for 10 days. Betamethasone was injected for three days to animals in groups of D, E (2 days after bacterial inoculation) and F (5 days after bacterial inoculation). Group G received no treatment. Eight weeks after bacterial inoculation, animals were sacrificed and the volume (amount) of renal scar was determined using the stereological techniques. Results: Changes in the weight and volume of the kidneys were not statistically significant. No scar was detected in group A, but all other groups including group B with intrarenal injections showed scarring. The volume density and absolute volume of the scar in groups C–G were significantly more than group B (p<0.001), whereas they did not differ significantly from each other. Conclusion: Betamethasone and/or gentamicin, when used two days after induction of pyelonephritis were not effective in preventing renal scar.}, keywords = {}, url = {https://ijms.sums.ac.ir/article_40148.html}, eprint = {https://ijms.sums.ac.ir/article_40148_92836663022a060b2731c76e3a730b43.pdf} }