Y and also visibly damaged subcortical areas [45,46]. Amyloid plaques in AD result from the deposition of amyloid beta (Ab) which is a putative pathogenic molecule in AD. Ab is the cleavage product of the amyloid precursor protein (APP) and APP mutations are associated with inherited forms of AD. The clinical implication or pathogenic consequences of brain amyloid deposition are still controversia
Amyloid plaque deposition [39,42-44]. Indeed, most forms of dementia are accompanied by a widespread degeneration in the cerebral cortex - such as the plaques in AD brain. AD is thus considered a "cortical dementia." HAD is also considered to be a cortical dementia however there is also targeted damage to regions lying under the cortex. Some authors consider HAD to be a subcortical dementia howeve