Efficiency and Mechanism Evaluation of Magnolia officinalis Water Extract in Preventing Gastric Ulcer

Table 1

Time course of ROS production of RGM 1 cells cultured in acidic medium.

Time (min)	ROS production (%)
0	28.5 ± 5.1
10	53.6 ± 3.8
20	47.3 ± 3.6
40	9.4 ± 2.3

Cells (2 × 10⁵ cells/well) incubated in acidic medium (pH 4.0) for 0, 10, 20, and 40 min. ROS levels were estimated by comparing the DCF fluorescence intensity using flow cytometry.