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An experimental sclerosing encapsulating peritonitis model in mice.

Y Ishii1, T Sawada, A Shimizu

  • 1Tokyo Women's Medical University, Kidney Center, Department of Surgery, 8-1 Kawata-cho, Shinjuku-ku, Tokyo 162-8666, Japan.

Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association
|June 8, 2001
PubMed
Summary

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Researchers developed a mouse model for sclerosing encapsulating peritonitis (SEP), a serious complication of peritoneal dialysis. This model shows peritoneal fibrosis and inflammation, aiding future SEP research and treatment development.

Area of Science:

  • Nephrology
  • Surgical Pathology
  • Experimental Medicine

Background:

  • Sclerosing encapsulating peritonitis (SEP) is a severe complication associated with continuous ambulatory peritoneal dialysis.
  • Understanding SEP's mechanisms and developing effective treatments are critical.

Purpose of the Study:

  • To establish a reliable experimental model for sclerosing encapsulating peritonitis (SEP) in mice.
  • To facilitate the investigation of SEP pathogenesis and therapeutic strategies.

Main Methods:

  • C57BL/6 mice received daily intraperitoneal injections of chlorhexidine gluconate and ethanol for 56 days.
  • A control group received daily intraperitoneal injections of phosphate-buffered saline.
  • Histological analysis was performed on mice sacrificed at various time points (days 3, 7, 21, 56).

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Main Results:

  • All mice in the treatment group developed macroscopic evidence of SEP by day 56.
  • Microscopic examination revealed progressive peritoneal fibrosis and increased mononuclear cell infiltration.
  • Peritoneal fibrosis advanced to a chronic inflammatory stage by day 56.

Conclusions:

  • A practical and reproducible mouse model for sclerosing encapsulating peritonitis (SEP) has been successfully developed.
  • This experimental model is valuable for studying SEP's underlying mechanisms.
  • The model can be utilized to test and establish potential treatments for SEP.