Abstract
Aim: This research was to investigate the effects and mechanisms of HSYA in vascular endothelial injury by vitro study. Methods: Dividing HUVECs as Normal Control (NC), Model (LPS treated) group, HSYA-L, HSYA-M and HSYA-H groups. Cells in the HSYA treatment groups were treated with LPS, followed by 40 mg/ml, 80 mg/ml, and 120 mg/ml HSYA intervention (HSYA-L, HSYA-M, and HSYA -H groups), respectively. Measuring the cell proliferation, apoptosis, relative proteins and mRNA (TLR4, MyD88 and NF-κB(p65)) expressions by MTT, Flow cytometry, WB and RT-qPCR assay. Using cellular immunofluorescence to evaluate NF-κB(p65) nuclear volume of difference groups. Results: With HSYA supplement, the cell proliferation rates were significantly up-regulation with cell apoptosis significantly down-regulation with TLR4 relatived mRNA and proteins and NF-κB(p65) nuclear significantly depressed with dose-dependent (P <0.05, respectively). Conclusion: HSYA improved vascular endothelial injury induced by LPS via TLR4 pathway In Vitro.
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