Características neuropatológicas y moleculares de la enfermedad de Alzheimer

Alzheimer's disease (AD) is the most prevalent neurodegenerative disease among the elderly. Due to the significant increase in the number of older people in our society, the social and health impact of AD is enormous. Current explanations of the aetiology of AD are hypothetical, based mainly on the characteristic neuropathological lesions observed in this disease (senile plaques with the beta-amyloid peptide as the main component and neurofibrillary tangles due to abnormal hyperphosphorylation of the tau protein). The present review aims to provide an up-to-date overview of current knowledge of AD with particular emphasis on the asymptomatic initial stages of the disease.