Erschienen in:
01.05.2015 | Correspondence
Does the difference between PART and Alzheimer’s disease lie in the age-related changes in cerebral arteries that trigger the accumulation of Aβ and propagation of tau?
verfasst von:
Roy O. Weller, Cheryl A. Hawkes, Roxana O. Carare, John Hardy
Erschienen in:
Acta Neuropathologica
|
Ausgabe 5/2015
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Excerpt
Primary age-related tauopathy (PART) [
7] is characterised by a limited distribution of tau pathology, compared with Alzheimer’s disease (AD), and an absence of amyloid-β (Aβ) plaques. Clinically, patients with PART are older and only a minority have profound cognitive impairment. Neurofibrillary tangles (NFTs) containing hyperphosphorylated tau spread in an age-related manner from brainstem to cerebral cortical areas [
3] and the presence of Aβ plaques is associated with acceleration in the propagation of NFTs in the pathogenesis of AD [
11,
18]. The amyloid cascade [
8] appears to drive the hyperphosphorylation and propagation of tau [
6,
16] and Aβ oligomers have a toxic effect upon synapses [
16]. …