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Updated: Jan 25, 2026

A Murine Model of Irreversible and Reversible Unilateral Ureteric Obstruction
Published on: December 20, 2014
A Simple and Easily Reproducible Model of Reversible Obstructive Jaundice in Rats
Seigo Hiratani1, Ryutaro Mori1, Yohei Ota1
1Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
Background/Aim:
Cholangiocarcinoma and pancreatic carcinoma are major malignancies that cause obstructive jaundice (OJ). This study aimed to develop a simple and easily reproducible rat model of reversible OJ (ROJ).
Materials And Methods:
OJ was induced by clamping the common bile duct (CBD) using a U-shaped titanium hemoclip and its base was attached by ligation using 2-cm long 4-0 polypropylene suture. An anti-adhesive sheet was placed around the CBD. OJ was mitigated by pulling the suture to remove the clip under laparotomy 3 days later. Serum chemistry and liver histopathology were compared between the ROJ group and sham surgery (SH) groups.
Results:
Three days after inducing OJ, serum total bilirubin, aspartate aminotransferase, and alanine aminotransferase were remarkably elevated in the ROJ group and thereafter reduced significantly after mitigating OJ. Similar findings were confirmed by histopathology.
Conclusion:
Our rat model of reversible OJ was considered simple and easily reproducible.
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