Effects of Dexamethasone and Salvia miltiorrhizae on the Small Intestine and Immune Organs of Rats with Severe Acute Pancreatitis

To observe the protecting effects and mechanisms of Dexamethasone and Salviae miltiorrhizae on intestinal mucosa and immune organs (spleen, thymus and lymph node) in rats with severe acute pancreatitis (SAP). The rats were randomly divided into sham-operated, model control, Dexamethasone treated group and Salviae miltiorrhizae treated group. At 3, 6 and 12 h after operation, the mortality rate, pathological changes of intestinal mucosa and immune organs as well as the contents of serum PAF, IL-1β and sIL-2R were observed, respectively. The mortality rate and the contents of PAF (at 3 and 6 h), IL-1β (at all time points) and sIL-2R (at 3 and 6 h) as well as the pathological scores of thymus (at all time points) and spleen (at 3 h) in Dexamethasone treated group were significantly lower than those in model contrlo groups (P < 0.05). The contents of PAF (at 3 and 12 h), IL-1β (at 6 and 12 h) and sIL-2R (at 3 and 6 h) as well as the pathological scores of thymus (at all time points) and spleen (at 3 and 12 h) in Salviae miltiorrhizae treated group were markedly lower than those in model contrlo groups (P < 0.05). Since both Dexamethasone and Salvia miltiorrhizae can reduce the contents of serum PAF, sIL-2R and IL-1β, mitigate the pathological changes in the small intestine, spleen and thymus and reduce the mortality rate of SAP rats, they show good therapeutic effects on SAP rats.