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Wednesday, June 5, 2013 7:02 AM | Venöse Multiple Sklerose, CVI & SVI, CCSVI Volg link
Hypoperfusion comes first in Alzheimer's!!! - Dr. C. Lange-Asschenfeldt, Heinrich-Heine-University Düsseldorf

Vascular factors in the pathogenesis of Alzheimer's disease.

Abstract

According to the amyloid hypothesis of Alzheimer's disease (AD), the amyloid ß (Aß) peptide, as the primary neurotoxic species, plays a key role in the pathogenesis of the disease. However, many lines of recent evidence also point towards a major importance of early cerebrovascular dysfunction at least for the most common form of the disease, sporadic AD. In the preclinical course not only neuronal but also vascular damage frequently occurs. Cerebral hypoperfusion, blood-brain barrier dysfunction and vascular oxidative stress are typical features of this stage of the disease. Most importantly, such alterations precede the classical pathological hallmarks, such as parenchymal deposition of extracellular amyloid and intracellular neurofibrillary tangles. In this article recent epidemiological, clinical pathological and experimental evidence for an integrative vascular neuronal pathogenetic model of sporadic AD is reviewed.

source:http://www.ncbi.nlm.nih.gov/pubmed/23695007