Table 2. Flow cytometry analysis of Leishmania infantum promastigotes treated with betulin and betulinic acid derivatives (BT06, AB13) showing the percentage of propidium iodide (PI) and annexin-V positive cells.

	Leishmania infantum intracellular entities (% of cells)
	Annexin-V				PI				Annexine/PI
	2 h	4 h	6 h	24 h	2 h	4 h	6 h	24 h	2 h	4 h	6 h	24 h
Control (BT06)	3.8	2	1.6	1.5	0.6	1.2	0.7	0.9	0.7	0.4	0.4	0.6
BT06	1.2	2.5	2.6	1.5	0.5	1.4	0.9	0.5	0.5	0.9	0.6	0.2
Control (AB13)	18.8	6.3	3.3	2.4	0.4	0.3	0	0.4	3.7	1.5	0.4	0.7
AB13	17.7	3.4	4.5	2.6	0.1	0	0.2	0	1.9	0.1	0.9	0.6