The application of Compont gel in chronic obstructive jaundice rats model

Abstract

Purpose: To establish a new rat model, the pathogenesis of which is closer to the clinical occurrence of chronic obstructive jaundice with liver fibrosis. Methods: 90 SD rats were randomly divided into 3 groups. Group A common bile duct ligation, group B common bile duct injection compont and group C injection saline. The serum of three groups was extracted, and the liver function was detected by ELISA. HE staining, Masson staining and immunohistochemistry were used to detect liver pathology. Results: Group B showed a fluctuant development of jaundice, obstructive degree reached a peak at 2 weeks, and decreased from 3 weeks. HA, LA and PCIII were significantly higher than control group. 3 weeks after surgery, liver tissue fibrosis occurred in group B, and a wide range of fiber spacing was formed at 5 weeks. Immunohistochemistry showed that hepatic stellate cells were more active than the control group. Conclusion: Intra-biliary injection of Compont gel is different from the classic obstructive jaundice animal model caused by classic bile duct ligation, which can provide an ideal rat model of chronic obstructive jaundice with liver fibrosis.

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“…A breast cancer tissue microarray containing 140 cancer sites (HBreD140Su07) and 38 paracancerous sites (HBre-Duc046Sur-02) was obtained from Shanghai Outdo Biotech Company (Shanghai, China). The immunohistochemistry (IHC) staining was performed as described previously ( 34 ). Experimentally, dewaxing and rehydration steps were identical to hematoxylin and eosin (HE) staining.…”

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