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Ginsenoside Rb1 could inhibit TNF-α-induced apoptosis. HUVECs were subjected to TNF-α for 24 h after being pretreated with Rb1 (20 μg/mL) for 8 h. (A,B) Apoptosis of HUVECs was assessed by TUNEL staining and Annexin V/PI staining. (C) Quantitative analysis of TUNEL-positive cell rate. (D) Quantitative analysis of apoptosis rate. Data were expressed as the mean ± SD of three independent experiments. ##P < 0.01 vs. control group; ∗P < 0.05, ∗∗P < 0.01 vs. TNF-α treatment group.
