The study to effect of Polygonum odoratum on colonic tissue in diabetic rats were done on male wistar rats induced by a single 65 of mg/kg b.w. streptozotocin intraperitoneal injection. The rats were divided into 5 groups namely normal rats fed on distilled water, normal rats fed on 300 mg/kg b.w. Polygonum odoratum extract, diabetic rats fed on distilled water, normal rats feed on glybenclamide and diabetic rats fed on 300 mg/kg b.w. Polygonum odoratum extract and all were treated for 8 weeks. Fasting blood glucose (FBG) was determined every weeks and at the end of the experiment the rats were euthanized by cervical dislocation technique. Colonic tissue was collected for histological study.
The results showed that the extract of Polygonum odoratum can be refreshed in rats with diabetic conditions. By reducing the fasting blood glucose. And colonic tissue innermost layer (mucosa) of diabetic rats returned to a condition similar to normal rat.