A Simple and Easily Reproducible Model of Reversible Obstructive Jaundice in Rats. 2019

Seigo Hiratani, and Ryutaro Mori, and Yohei Ota, and Ryusei Matsuyama, and Takafumi Kumamoto, and Yoji Nagashima, and Daisuke Morioka, and Itaru Endo
Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan.

OBJECTIVE 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). 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. CONCLUSIONS Our rat model of reversible OJ was considered simple and easily reproducible.

UI MeSH Term Description Entries
D008111 Liver Function Tests Blood tests that are used to evaluate how well a patient's liver is working and also to help diagnose liver conditions. Function Test, Liver,Function Tests, Liver,Liver Function Test,Test, Liver Function,Tests, Liver Function
D008297 Male Males
D004195 Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. Animal Disease Model,Animal Disease Models,Disease Model, Animal
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001706 Biopsy Removal and pathologic examination of specimens from the living body. Biopsies
D017208 Rats, Wistar A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain. Wistar Rat,Rat, Wistar,Wistar Rats
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus
D022781 Hepatocytes The main structural component of the LIVER. They are specialized EPITHELIAL CELLS that are organized into interconnected plates called lobules. Hepatic Cells,Cell, Hepatic,Cells, Hepatic,Hepatic Cell,Hepatocyte
D041781 Jaundice, Obstructive Jaundice, the condition with yellowish staining of the skin and mucous membranes, that is due to impaired BILE flow in the BILIARY TRACT, such as INTRAHEPATIC CHOLESTASIS, or EXTRAHEPATIC CHOLESTASIS. Jaundice, Cholestatic,Jaundice, Mechanical,Cholestatic Jaundice,Mechanical Jaundice,Obstructive Jaundice

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