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Percentage inhibition<br />

% of inhibition<br />

Percentage inhibition<br />

% of inhibition<br />

(A) (A)<br />

120<br />

(B)<br />

120<br />

100<br />

100<br />

100<br />

99<br />

120<br />

100<br />

100<br />

99<br />

80<br />

78100<br />

80<br />

78<br />

60<br />

80<br />

60<br />

40<br />

32<br />

Serge et al. 2287<br />

20<br />

0<br />

20<br />

0<br />

0<br />

0 1 2<br />

0<br />

3<br />

1 2 3<br />

0<br />

-log[alkaloids<br />

4<br />

extract] µg/ml<br />

0 1<br />

4<br />

2<br />

0<br />

3<br />

1 2 3<br />

-log[alkaloids<br />

4<br />

extract] µg/m<br />

(C)<br />

120<br />

100<br />

80<br />

60<br />

40<br />

100<br />

-log[alkaloids extract] µg/ml<br />

100<br />

% of inhibition<br />

40<br />

20<br />

(A) (A)<br />

(B)<br />

(C)<br />

(C)<br />

120<br />

100<br />

6760<br />

100<br />

20<br />

0<br />

0<br />

0 1 2 3 4<br />

0 1 2 3 -log[alkaloids 4 extract] µg/ml<br />

30<br />

% of inhibition<br />

60<br />

40<br />

100<br />

(B)<br />

66 60<br />

-log[alkaloids extract] µg/ml<br />

Figure 1. Antimalarial -log[alkaloids activity of extract] alkaloids µg/ml of A. leiocarpus and M. inermis: A/Alkaloids from A. leiocarpus leaves. B<br />

/Alkaloids from M. inermis leaves. C/ Alkaloids from M. inermis roots. Each point represents the average of the seven<br />

isolates after incubation for 24 h at 37°C.<br />

no more studies of these extracts were performed.<br />

However, our study showed considerable antiplasmodial<br />

activity for alkaloids from M. inermis and A. leiocarpus<br />

leaves, and for alkaloids from M. inermis roots (IC50

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