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The localization of Calbindin-D28k and NADPH-diaphorase in the cholinergic neurons of the basal forebrain, striatum and brainstem was investigated in the rat, monkey, baboon and human using calbindin and choline acetyltransferase immunohistochemistry and NADPH-diaphorase histochemistry. Considerable regional and species-specific variations were observed.(More)
We introduce a one-step histochemical method with cobalt as the precipitating agent for ferrocyanide for the light microscopic demonstration of acetylcholinesterase activity. This method was used to demonstrate acetylcholinesterase in normal cortical fibers and neurons, as well as pathological elements such as plaques and tangles. This procedure can also be(More)
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