Figure 2.

Flow cytometric analysis of apoptotic CD³⁺ positive T-lymphocytes in a child with Down syndrome. The percentage of FITC+/PI-in the upper left quadrant (early apoptotic cells), and the FITC+/PI+ in the upper right quadrant (late apoptotic cells) as well as the FITC-/PI+ (necrotic) cells in the lower right quadrant after gating on CD³⁺ cells in a DS child.