Erschienen in:
01.08.2013 | Correspondence
Amyloid-β may be released from non-junctional varicosities of axons generated from abnormal tau-containing brainstem nuclei in sporadic Alzheimer’s disease: a hypothesis
verfasst von:
Heiko Braak, Kelly Del Tredici
Erschienen in:
Acta Neuropathologica
|
Ausgabe 2/2013
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Excerpt
All cases of sporadic Alzheimer’s disease (AD) are neuropathologically characterized by disease-related lesions that develop at specific sites in the human brain and gradually disperse from there into hitherto uninvolved regions [
5,
14,
24,
35‐
37,
44]. Central to this pathological process are abnormal alterations of the neuronal cytoskeleton that consist mainly of hyperphosphorylated and aggregated tau protein [
17,
21,
25‐
27,
30,
31]. Involved nerve cells first can be seen in brainstem nuclei that diffusely project to the cerebral cortex. Among others, these include the noradrenergic locus coeruleus, the serotonergic upper raphe nuclei, and the cholinergic magnocellular nuclei of the basal forebrain [
8]. Later on, in the pathological process, the intraneuronal inclusions are accompanied by extracellular plaque-like deposits of a second abnormal protein, amyloid β (Aβ) [
10,
11,
42]. …