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Pg-LPS promotes HUVEC proliferation, as measured by CCK-8 assay (and shown as optical density at 450 nm). *P < 0.05, **P < 0.01, ***P < 0.001; error bars represent standard deviation.
Pg-LPS, Porphyromonas gingivalis-lipopolysaccharide; HUVECs, human umbilical vein endothelial cells; CCK-8, Cell Counting Kit‑8.
