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(a) Effect of African Jointfir (AFJ) leaf alkaloid extract on acetylcholinesterase (AChE) activity in Mn-induced toxicity in Drosophila melanogaster. (b) In vitro AChE inhibitory effect of AFJ leaf alkaloid extract. Bars represent mean ± SEM. Mean values are significantly different at P < 0.05∗ compared to control. Mean values are significantly different at P < 0.01## compared to Mn-treated group.
