. 2014 Aug 7;2014:545038. doi: 10.1155/2014/545038

Table 2.

Effect of the compounds on intracellular amastigotes of L. amazonensis and selectivity index.

Samples	Macrophages CC₅₀ (µg/mL) (95% C.I.)^a	Amastigotes CC₅₀ (µg/mL) (95% C.I.)^a	Selectivity index (SI)^b
Methanolic extract	35.9 (±0.06)	8.1 (5.8–11.2)	4.4
Hexane	22.1 (±1.4)	6.9 (4.0–11.8)	3.2

^aData are IC₅₀ values in μg/mL and 95% confidence intervals are in brackets. ^bSelectivity index (SI) was calculated by dividing the CC₅₀ of macrophages by the IC₅₀ values of amastigotes of L. amazonensis.