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Rb3 inhibits chronic inflammation by downregulating expression of TLR2. (A,B) The relative levels of TLR2 and TLR4 mRNA (4 days) in HPLCs were examined by qPCR. (C) Expression of TLR2 in periodontal tissues of rat was detected by IHC analysis. Scale bar represents 20 μm. All data were presented as means ± SE (n = 3). SE, standard error. * p < 0.05 significantly different from LPS stimulation only group. ** p < 0.05 compared with normal control.
