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Determining Bile Duct Density in the Mouse Liver
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Determining Bile Duct Density in the Mouse Liver.

Joshua M Adams1, Hamed Jafar-Nejad2

  • 1Program in Developmental Biology, Baylor College of Medicine; Medical Scientist Training Program (MSTP), Baylor College of Medicine; Department of Molecular and Human Genetics, Baylor College of Medicine.

Journal of Visualized Experiments : Jove
|May 21, 2019
PubMed
Summary

Researchers developed a simple method to quantify bile duct development in mice. This technique counts bile ducts per portal vein across all liver lobes, aiding in the study of biliary diseases.

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Area of Science:

  • Hepatology
  • Developmental Biology
  • Animal Models

Background:

  • Mouse models are crucial for studying biliary diseases.
  • Current methods for assessing biliary development have limitations in providing a comprehensive liver-wide view.
  • Mouse livers can compensate for biliary defects, masking underlying issues.

Purpose of the Study:

  • To present a simple, quantitative method for assessing bile duct development in mice.
  • To enable better comparison of biliary defects across different genotypes and experimental conditions.
  • To provide a standardized approach for evaluating bile duct (BD) development and ductular reaction.

Main Methods:

  • Livers are mounted and sectioned stereotactically across all lobes.
  • Bile ducts (BDs) are identified by cytokeratin staining of cholangiocytes.
  • The average number of BDs per portal vein (PV) is calculated for quantitative analysis.

Main Results:

  • The method allows for clear differentiation between wild-type mice and models of biliary disease, such as Alagille syndrome.
  • It provides a quantitative measure of bile duct development and ductular reaction.
  • The stereotactic sectioning ensures consistent analysis across different liver lobes.

Conclusions:

  • This method offers a straightforward and quantitative approach to assess bile duct development in mice.
  • It complements existing techniques by providing a liver-wide perspective on biliary defects.
  • The technique is valuable for research on mouse models of biliary diseases and developmental abnormalities.