Fig. 11

Determination of apoptosis assay using flow cytometry. The Annexin V-FITC/PI-positive staining of (A) control and (B) A549 cells treated with STX. The four quadrants were labeled as follows: Q1 for necrotic, Q2 for late apoptotic, Q3 for normal intact cells, and Q4 for early apoptotic cells. (C) Bar chart presentation of apoptotic and necrotic cells percentages