been closely related to cholinergic deficits. We have compared different markers of
cholinergic function to assess the best biomarker of cognitive deficits associated to
cholinergic hypoactivity. In post-mortem frontal cortex from AD patients, acetylcholine (ACh)
levels, cholinacetyltransferase (ChAT) and acetylcholinesterase (AChE) activity were all
reduced compared to controls. Both ChAT and AChE activity showed a significant …