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Protective effects of SGF on Pb exposed HEK-293 cells apoptosis. The results are expressed as the mean ± SD, n = 3; Different letters indicate significant differences (P < 0.05). (A, B) TUNEL assay (200×); (C, D) Flow cytometry analysis; (E, F) Western blotting detection of the full- and cleaved-caspase-3 protein expression. DMSA, meso-2,3-dimercaptosuccinic acid; SGF, Smilax glabra flavonoids extract.
