Retinal and renal vascular permeability changes caused by stem cell stimulation in alloxan-induced diabetic rats, measured by extravasation of fluorescein

In Vivo. 2012 May-Jun;26(3):427-35.

Abstract

Aim: To determine whether treatment with the stem cell stimulator Olimpiq® Stem×Cell prevents increase of retinal and renal vascular permeability in alloxan-induced diabetic rats.

Materials and methods: Two groups of Wistar rats were made diabetic by single intraperitoneal injection of Alloxan. The third, the control group, received vehicle alone. One diabetic group received Olimpiq® Stem×Cell treatment for 4 weeks. The permeability of the blood-retinal barrier (BRB) and renal vessels were measured by the extravasation of fluorescein-labeled bovine serum albumin.

Results: Six weeks subsequently to Alloxan injection, significantly elevated the tissue fluorescence, the renal vascular leakage and BRB breakdown was demonstrated in the diabetic group, compared to the nondiabetic group. Olimpiq® Stem×Cell treatment significantly reduced the BRB breakdown, tissue fluorescence, and vascular leakage.

Conclusion: Olimpiq® Stem×Cell would be a useful choice of treatment for complications associated with increased vascular permeability of diabetes, such as retinopathy or nephropathy.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alloxan
  • Animals
  • Capillary Permeability / drug effects*
  • Complex Mixtures / pharmacology*
  • Complex Mixtures / therapeutic use
  • Diabetes Mellitus, Experimental / drug therapy*
  • Drug Evaluation, Preclinical
  • Eye / blood supply
  • Fluorescein / pharmacokinetics
  • Fluorescent Dyes / pharmacokinetics
  • Hypoglycemic Agents / pharmacology*
  • Hypoglycemic Agents / therapeutic use
  • Kidney / blood supply*
  • Kidney / metabolism
  • Kidney / pathology
  • Male
  • Rats
  • Retina / metabolism*
  • Retina / pathology
  • Stem Cells / drug effects*
  • Tissue Distribution / drug effects

Substances

  • Complex Mixtures
  • Fluorescent Dyes
  • Hypoglycemic Agents
  • Alloxan
  • Fluorescein