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      Acute and Long-Term Changes Observed in Imprints of Mouse Mesothelium Exposed to Glucose-Enriched, Lactated, Buffered Dialysis Solutions

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          Abstract

          Solutions for peritoneal dialysis (PD), the hyperosmolarity of which is obtained with glucose, have been shown to initiate and maintain a situation of continuous mesothelial cell injury associated with a process of regeneration which also takes place continuously. The present study was done using the in vivo and almost in situ technique of mesothelial cell imprints. Acute exposure to 4.25% glucose solution at pH 5.2 and 7.0 induced higher mitotic activity, defective cytokinesis, and reduced cell viability. Long-term exposure (15 and 30 days) to both 4.25% glucose solutions was associated with a reduced population density, increased surface area, and lower mesothelial cell viability, regardless of the pH. The use of 1.5% glucose fluid showed that this effect was dose related. After 30 days of recovery, mesothelial cells exposed to the high-glucose solution at both pH 5.2 and 7.0 appeared repopulated by small cells and showed evidence of defective cytokinesis. So far, it appears that the alterations observed after long-term exposure of the mesothelium to PD fluid are mainly caused by the high concentration of glucose per se. The additional effects of hyperosmolarity are still unclear, whereas the eventual role of low pH, at least in the experimental model used here, can be defined as less than marginal.

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          Author and article information

          Journal
          NEF
          Nephron
          10.1159/issn.1660-8151
          Nephron
          S. Karger AG
          1660-8151
          2235-3186
          1995
          1995
          18 December 2008
          : 70
          : 4
          : 466-477
          Affiliations
          Department of Nephrology, and Komach Laboratory for Experimental Nephrology, Central Emek Hospital, Afula, Israel
          Article
          188647 Nephron 1995;70:466–477
          10.1159/000188647
          7477654
          © 1995 S. Karger AG, Basel

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          Page count
          Pages: 12
          Categories
          Original Paper

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