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- W2017107068 abstract "Aristolochic acid nephropathy and the peritoneum: Functional, structural, and molecular studies.BackgroundAristolochic acid nephropathy (AAN) is a rapidly progressive interstitial nephropathy linked to the exposure to aristolochic acid (AA) and characterized by extensive fibrosis and urothelial atypia. Although the fibrotic process has been documented in extrarenal tissues, the involvement of the peritoneum, as well as the efficacy of peritoneal dialysis in AAN patients, remain uncertain.MethodsThe structure of the peritoneal membrane and the expression of basic fibroblast growth factor (bFGF), collagen type III, endothelial nitric oxide synthase (eNOS), and aquaporin-1 (AQP1) were investigated in peritoneal biopsies from an index AAN patient, four other AAN patients, four regular peritoneal dialysis patients, and two controls. Similar methods were used to investigate a rabbit model of AAN after intraperitoneal exposure to high-dose AA. AA-DNA adducts were screened by 32P-postlabeling analysis.ResultsThe AAN patients had renal failure, renal fibrosis, and urothelial atypia. The peritoneum of AAN patients had a normal structure, lacked cellular atypia, and, in comparison with regular peritoneal dialysis patients and controls, did not show abnormal regulation of fibrotic and endothelial markers. Furthermore, specific AA-DNA adducts were not identified in the peritoneum of AAN patients. In contrast, AA-DNA adducts were detected in peritoneal and kidney tissues of all exposed rabbits, and one of them developed a malignant mesothelioma.ConclusionThese data demonstrate the lack of fibrotic and vascular alterations and the absence of cellular atypia in the peritoneum from AAN patients. Thus, peritoneal dialysis should not be discouraged in these patients. Nevertheless, studies in a rabbit model of high-dose AA exposure may suggest a potential risk of peritoneal malignancy. Aristolochic acid nephropathy and the peritoneum: Functional, structural, and molecular studies. Aristolochic acid nephropathy (AAN) is a rapidly progressive interstitial nephropathy linked to the exposure to aristolochic acid (AA) and characterized by extensive fibrosis and urothelial atypia. Although the fibrotic process has been documented in extrarenal tissues, the involvement of the peritoneum, as well as the efficacy of peritoneal dialysis in AAN patients, remain uncertain. The structure of the peritoneal membrane and the expression of basic fibroblast growth factor (bFGF), collagen type III, endothelial nitric oxide synthase (eNOS), and aquaporin-1 (AQP1) were investigated in peritoneal biopsies from an index AAN patient, four other AAN patients, four regular peritoneal dialysis patients, and two controls. Similar methods were used to investigate a rabbit model of AAN after intraperitoneal exposure to high-dose AA. AA-DNA adducts were screened by 32P-postlabeling analysis. The AAN patients had renal failure, renal fibrosis, and urothelial atypia. The peritoneum of AAN patients had a normal structure, lacked cellular atypia, and, in comparison with regular peritoneal dialysis patients and controls, did not show abnormal regulation of fibrotic and endothelial markers. Furthermore, specific AA-DNA adducts were not identified in the peritoneum of AAN patients. In contrast, AA-DNA adducts were detected in peritoneal and kidney tissues of all exposed rabbits, and one of them developed a malignant mesothelioma. These data demonstrate the lack of fibrotic and vascular alterations and the absence of cellular atypia in the peritoneum from AAN patients. Thus, peritoneal dialysis should not be discouraged in these patients. Nevertheless, studies in a rabbit model of high-dose AA exposure may suggest a potential risk of peritoneal malignancy." @default.
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- W2017107068 title "Aristolochic acid nephropathy and the peritoneum: Functional, structural, and molecular studies" @default.
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- W2017107068 doi "https://doi.org/10.1046/j.1523-1755.2003.00275.x" @default.
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