Cardiotoxin, protamine and polylysine are potent inhibitors of various cholinesterases. CaCl2 and MgCl2 overcome the inhibition. The order of addition of the inhibitor and the protecting agent (MgCl2) influences the final degree of the inhibition observed. These findings suggest that cardiotoxin, protamine and polylysine inhibit cholinesterases by the ionic binding of their basic groups with th...

Alzheimer disease follows a pattern of gradual cognitive, behavioral, and functional decline. Other causes of dementia have overlapping presentations, but with important differences. Most patients with mild to moderate dementia should be treated with cholinesterase inhibitors to temporarily stabilize symptoms and delay clinically important end points. Memantine, an N-methyl-D-aspartate antagoni...