• 1.Department of Hepatobiliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China;;
  • 2.Department of Pathology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China;
Export PDF Favorites Scan Get Citation

Objective  To study the effect and feasibility of gradual oral diethylnitrosamine (DENA) induced liver cirrhotic model in rats under avoirdupois monitoring.
Methods  Fifty Wistar rats (6 weeks old) were divided into 3 groups: normal control group (n=10), traditional DENA induction group (receiving traditional oral DENA treatment, n=20), gradual DENA induction group (receiving gradual oral DENA treatment under avoirdupois monitoring, n=20). The weight, mortality and liver cirrhosis formation were observed.
Results  After 4 weeks of inducing cirrhosis, the weight of traditional DENA induction group 〔(234.9±27.1) g〕 was significantly lower than that of normal control group 〔(264.8±33.7) g, P<0.05〕. After 8 weeks of inducing cirrhosis, the weight of traditional DENA induction group 〔(251.5±34.3) g〕 was significantly lower than that of normal control group 〔(303.2±49.4) g, P<0.01〕 and gradual DENA induction group 〔(277.5±27.6) g, P<0.05〕. However, the difference between normal control group and gradual DENA induction group was not remarkable (P>0.05). The mortality in traditional DENA induction group (35%) was significantly higher than that in normal control group (0) and gradual DENA induction group (0), P<0.05. But the rate of cirrhosis formation both in traditional DENA induction group and gradual DENA induction group was 100%.
Conclusion  Oral DENA induced cirrhotic model in rats is a simple, reproducible and reliable technique. Gradual oral technique, in which DENA is given under avoirdupois monitoring, can improve rat’s security and reduce mortality.

Citation: HUA Yunpeng ,LI Shaoqiang,LAI Jiaming,PENG Baogang,LIANG Huizhen,LIANG Lijian. Study on Gradual Oral Diethylnitrosamine Induced Cirrhotic Model in Rats under Avoirdupois Monitoring. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2009, 16(8): 625-627. doi: Copy