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Pathogenesis of stone formation Iwao Yoshioka 1 , Norio Nonomura 1 1Department of Urology, Osaka University Graduate School of medicine Keyword: シュウ酸カルシウム結石 , 形成機序 , 性ホルモン pp.250-254
Published Date 2012/3/15
DOI https://doi.org/10.11477/mf.1542102945
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The incidence of renal stones has increased progressively. Despite a vast amount of research, the pathogenesis of oxalate calcium stone is controversial. The process involves multiphases. Recent research on the pathogenesis has reported that urinary supersaturation and crystallization occurs in the renal tubule at first, and renal epithelial cell injury initiates the stone formation. The injury is caused by calcium oxalate toxicity, and continuous reactive oxygen species generation could lead to additional cell injury. Angiotensin Ⅱ emphasizes this process. The epithelial cells stimulated by calcium oxalate or oxidative stress, promote crystal-cell interaction. This phase is the second important factor. After endocytosis, some crystals eventually move into interstitial space, causing inflammation and attracting inflammatory cells. Finally, stone nidus grows in the interstitial space.


Copyright © 2012, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1367 印刷版ISSN 0485-1420 医学書院

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