Oral administration of CSR water-soluble polysaccharide (CSPA) significantly reduced the blood glucose level, glutamic oxaloacetic transaminase, glutamic pyruvic transaminase, blood urea nitrogen, creatinine activity in streptozotocin (STZ) induced diabetes model rats, effectively increased the serum insulin level and liver glycogen content and promoted the recovery of pancreatic islet cells in the pancreas to near normal levels [53]. Here, INS is linked to diabetes mellitus.