Table 2.

AChE inhibition % in the presence of tested cyanobacteria crude extracts.

Cyanobacteria Isolates	% Inhibition	Effect
Anabaena anomala (1)	25 ± 0.87	Inhibitory
Anabaena khanne	-- *	Stimulatory
Anabaena anomala (2)	-- *	Stimulatory
Oscillatoria cortiana	-- *	Stimulatory
Nostoc entophytum	-- *	Stimulatory
Anabaena variabilis	62 ± 1.3	Inhibitory
Anabaena fertilisma	-- *	Stimulatory
Anabaen oryzae	49 ± 1.5	Inhibitory
Anabaena anomala (3)	-- *	Stimulatory
Anabaena varibilis var. ellipsospora	-- *	Stimulatory
Donepezil	100 ± 0.0

* These crude extracts increase the activity of AChE (stimulatory).