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Figure 4: Treating with rhubarb changes the expression of matrix metalloproteinase 9 and zonula occluden1. (a) The rats (n = 5) feed with rhubarb had decreased Matrix metalloproteinase 9 and (b) increase the zonula occluden1. The data are represented as the mean ± standard deviation. *P < 0.05, n = 5 in each group 
