Research Article

Flavonoids in Ageratum conyzoides L. Exert Potent Antitumor Effects on Human Cervical Adenocarcinoma HeLa Cells In Vitro and In Vivo

Figure 4

Flavonoids in A. conyzoides obviously reduced the intracellular ROS level in HeLa cells. Intracellular ROS levels in HeLa cells upon the administration of increasing doses of flavonoids (50, 100, 200, 300, and 400 μg/mL) were detected using a flow cytometer. Black arrows point the ROS peak of the control group.