Table 1.

Trypanocidal activity of organic and aqueous extracts of Mikania micrantha, M. periplocifolia, M. parodii, and M. cordifolia.

Species	Extract	% of growth inhibition ± SEM
		100 μg/mL	10 μg/mL	1 μg/mL
Mikania micrantha	Organic	91.1 ± 3.7	77.6 ± 4.5	14.2 ± 4.6
	Aqueous	40.4 ± 1.4	23.2 ± 2.9	n.d.
Mikania periplocifolia	Organic	95.5 ± 0.4	56.7 ± 5.0	7.0 ± 4.2
	Aqueous	40.2 ± 2.5	25.2 ± 1.0	n.d.
Mikania parodii	Organic	94.9 ± 0.5	33.0 ± 1.3	2.3 ± 1.5
	Aqueous	30.2 ± 2.0	19.0 ± 1.8	n.d.
Mikania cordifolia	Organic	86.2 ± 1.8	10.5 ± 2.5	n.d.
	Aqueous	13.6 ± 2.8	12.2 ± 5.4	n.d.

Results are expressed as mean ± SEM. n.d.: not determined.