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- W2068723936 abstract "Reflux nephropathy (RN) is a major cause of end stage renal failure in children and hypertension is a frequent complication. Cyclooxygenase-2 (COX-2) is an enzyme responsible for the prostaglandin synthesis. It has been shown that COX-2 up-regulates renin production leading to renovascular hypertension. We investigate COX-2 expression in the kidneys of children with RN.Kidney specimens from 12 patients 2 to 13 years old with severe RN secondary to primary high grade vesicoureteral reflux obtained at the time of nephrectomy and 5 controls were examined. Single labeled immunohistochemistry was performed with 2 COX-2 antibodies using light and confocal microscopy. Quantification of COX-2 was determined by Western blotting analysis. COX-2 gene expression was evaluated by real-time quantitative reverse transcription polymerase chain reaction.There was a strong COX-2 immunoreactivity in the proximal tubules and tubulointerstitial space in the RN samples compared to controls. Immunoreactive COX-2 protein expression was markedly increased in RN samples compared to controls. Real-time reverse transcription polymerase chain reaction showed a significant increase in COX-2 mRNA expression in the RN samples compared to controls (p <0.05).Over expression of COX-2 in reflux nephropathy suggests that COX-2 may be involved in the pathogenesis of tubulointerstitial damage associated with severe reflux nephropathy." @default.
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- W2068723936 date "2003-10-01" @default.
- W2068723936 modified "2023-10-15" @default.
- W2068723936 title "Cyclooxygenase-2 Up-Regulation in Reflux Nephropathy" @default.
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- W2068723936 doi "https://doi.org/10.1097/01.ju.0000085810.37816.65" @default.
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