DSS诱导的肠炎模型
实验方案：
1) 将老鼠随机分组；
2) 对照组:每天饮用灭菌水；
3) 模型组每天饮用3.5%DSS至第6天,从第7天开始换为灭菌水,至第12天;
4) 实验开始后,每天对老鼠进行观察,称重和评分；
5) 肠炎观察指标包括： 体重； 拉稀程度；结肠病变情况等

Brief protocol of DSS induced IBD model:
1) Mice: 6-8 weeks old, female; Random divided into several groups;
2) DSS concentration: 3.5%, control group treated with drink water;
3) DSS treatment: DSS in drink water from Day 1 to Day 6 and changed to drink water from Day 7 to Day 12;
4) Observation: Mice are observed by measuring body weight twice a week in the first cycle. When obvious weight loss appears, mouse weight is measured on daily basis.
5) Clinical colitis analysis: colitis scoring based on: Weight loss, Rectal bleeding, Colon shortening, Colon tissue damage.