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Detection of proliferation of HCEC-12, HCEC-H9C1, HCEC-B4G12 using CCK-8. (A-C) The effect of oxybuprocaine (0, 10, 20, 50, 100 and 200 mg/l) on the proliferation of HCEC-12, HCEC-H9C1 and HCEC-B4G12 is detected using CCK-8. (D) Liquiritin (0.5, 1, 2, 4 and 8 mg/ml) resisting the inhibitory effect of oxybuprocaine on the proliferation of HCEC-12 was detected using CCK-8. *P<0.05 and **P<0.01.
