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Over the past several decades, our understanding of Alzheimer's disease (AD) has seen an evolution from the dichotomous concept of normal versus AD in the dementia state to a more accurate and complete appreciation of AD as a progressive disorder with clinical, biological, and pathological...
Disturbances in cerebral cholesterol metabolism have been implicated in the pathogenesis of Alzheimer's disease (AD). Here, we provide evidence that alterations in brain cholesterol homeostasis also can be a consequence of disease progression. We found that APPSLxPS1mut mice, at the age of 9...
Mutations in the progranulin gene (GRN) are responsible for familial FTLD with ubiquitin pathology (FTLD-U). However, there are controversial data regarding the contribution of GRN variability to sporadic FTLD. We carried out an association study in 265 patients, who did not carry a GRN causal...
The major barrier to treating or preventing Alzheimer's disease (AD) is its unknown etiology and pathogenesis. Although increasing evidence supports a role for mitochondrial dysfunction in the pathogenesis of AD, there have been few studies that simultaneously evaluate changes in multiple...
Neuroinflammation is a prominent feature of Alzheimer disease (AD) and other chronic neurodegenerative disorders. It exacerbates the fundamental pathology by generating a plethora of inflammatory mediators and neurotoxic compounds. Inflammatory cytokines, complement components, and toxic free...
RhoGTPases control cytoskeleton dynamics thereby modulating synaptic plasticity. Because Alzheimer's disease (AD) is characterized by synaptic dysfunction, we sought to determine whether the expression, activity, or localization of the GTPases RhoA, Rac1 and Cdc42, as well as p21-PAK, a...
The relationship between amyloid-β (Aβ) deposition and tau-related neurofibrillary changes is a key issue in the pathogenesis of Alzheimer's disease (AD). The aim of this study was to investigate the extent and cortical distribution of Aβ and tau pathology, their mutual links and their...
Alzheimer's disease (AD) pathogenesis is widely believed to be driven by the production and deposition of the amyloid-β peptide (Aβ). For many years, investigators have been puzzled by the weak to nonexistent correlation between the amount of neuritic plaque pathology in the human brain and the...
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