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Related Experiment Videos

Quantitative analysis of small intestinal microcirculation in the mouse

S Massberg1, S Eisenmenger, G Enders

  • 1Ludwig-Maximilians University, Institute for Surgical Research, Klinikum Grosshadern, Munich, Germany. massberg@icf.med.uni-muenchen.de

Research in Experimental Medicine. Zeitschrift Fur Die Gesamte Experimentelle Medizin Einschliesslich Experimenteller Chirurgie
|August 26, 1998
PubMed
Summary

Researchers developed a new mouse model to study intestinal microcirculation, assessing capillary perfusion and cell interactions in the small intestine. This model aids in understanding inflammation mechanisms.

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Area of Science:

  • Physiology
  • Microcirculation Research
  • Inflammation Studies

Background:

  • Intestinal microvascular dysfunction and inflammation are key in conditions like sepsis and shock.
  • The precise molecular mechanisms driving these changes remain incompletely understood.
  • Mice offer a versatile platform for investigating these mechanisms using genetic and antibody-based approaches.

Purpose of the Study:

  • To establish a novel experimental model for investigating microcirculation in the mouse small intestine.
  • To quantitatively assess nutritive perfusion and leukocyte-endothelial cell interactions in vivo.
  • To provide a foundation for future studies on the molecular basis of intestinal inflammation.

Main Methods:

  • Development of an in vivo fluorescence microscopy model in anesthetized Balb/c mice.

Related Experiment Videos

  • Analysis of functional capillary density (FCD) in the jejunal mucosa and muscle layers using FITC-dextran.
  • Quantification of leukocyte and platelet-endothelial cell interactions in postcapillary venules and arterioles using rhodamine-6G.

    • Main Results:

    • Established baseline values for nutritive perfusion in the intestinal mucosa (512 cm-1) and muscle layer (226 cm-1).
    • Demonstrated stable perfusion over a 2-hour observation period.
    • Quantified physiological levels of rolling and adherent leukocytes and platelets in the microvasculature.

    Conclusions:

    • The newly developed mouse model enables simultaneous visualization and quantification of intestinal microcirculation parameters.
    • This model is suitable for investigating the roles of specific molecules in intestinal inflammation using genetic or antibody-based manipulations.
    • It provides a valuable tool for advancing the understanding of inflammatory processes in the gut.