YIN Chang-jiang, YANG Kun-bao, ZHANG Xue-jun, et al. The Effect of Lycium Barbarum Polysaccharides on Cytokines in Type 2 Diabetic Rats[J]. Chinese journal of experimental traditional medical formulae, 2014, 20(16): 169-172.
YIN Chang-jiang, YANG Kun-bao, ZHANG Xue-jun, et al. The Effect of Lycium Barbarum Polysaccharides on Cytokines in Type 2 Diabetic Rats[J]. Chinese journal of experimental traditional medical formulae, 2014, 20(16): 169-172. DOI: 10.13422/j.cnki.syfjx.2014160169.
Objective: This study aimed to investigate the regulation roles of lycium barbarum polysaccharides (LBP) on cytokines in type 2 diabetic (NIDDM) rats. Method: High-fat and high-sugar diet in combination with low-dose injection of streptozotocin(STZ) was used to prepare type 2 diabetic (NIDDM) rat model. Forty diabetic immune model rats were randomly selected to divide into five groups:model group
low dose of LBP(100 mg· kg-1) intervention group
medium dose of LBP (200 mg· kg-1) intervention group
high dose of LBP (400 mg· kg-1) intervention group
glibenclamide intervention group (positive drug group). Rats in similar weight fed with basal diet were used as normal control group. Western bolt assay was used to detect the effect of LBP on the expression of interleukin-1β (IL-1β)
interleukin-6 (IL-6)
tumor necrosis factor-α(TNF-α) in type 2 diabetic rats' spleen tissue. Result: Compared with the normal control group
the expression of IL-1β
IL-6
TNF-α in the spleen tissue of NIDDM rats was significantly increased. After 4 weeks' intervention of different doses of LBP
the expression of IL-1β
IL-6
TNF-α in diabetic rats' spleen tissue in each treatment group significantly decreased. Conclusion: LBP may regulate the immune function of type 2 diabetic rats by inhibiting the expression of IL-1β