Cardiovascular brain impulses in Alzheimer's disease

Abstract: Accumulation of amyloid-β is a key neuropathological feature in brain of Alzheimer's disease patients. Alterations in cerebral hemodynamics, such as arterial impulse propagation driving the (peri)vascular cerebrospinal fluid flux, predict future Alzheimer's disease progression. We now present a non-invasive method to quantify the three-dimensional propagation of cardiovascular impulses in human brain using ultrafast 10 Hz magnetic resonance encephalography. This technique revealed spatio-temporal abnormalities in impulse propagation in Alzheimer's disease. The arrival latency and propagation speed both differed in Alzheimer's disease patients. Our mapping of arterial territories revealed Alzheimer's disease-specific modifications, including reversed impulse propagation around the hippocampi and in parietal cortical areas. The findings imply that pervasive abnormality in (peri)vascular cerebrospinal fluid impulse propagation compromises vascular impulse propagation and subsequently glymphatic brain clearance of amyloid-β in Alzheimer's disease

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch
Notes
Brain. - 144, 7 (2021) , 2214–2226, ISSN: 1460-2156

Event
Veröffentlichung
(where)
Freiburg
(who)
Universität
(when)
2021
Creator
Rajna, Zalan
Mattila, Heli
Huotari, Niko
Tuovinen, Timo
Krüger, Johanna
Holst, Sebastian Camillo
Korhonen, Vesa
Remes, Anne M.
Seppänen, Tapio
Hennig, Jürgen
Nedergaard, Maiken
Kiviniemi, Vesa

DOI
10.1093/brain/awab144
URN
urn:nbn:de:bsz:25-freidok-1943834
Rights
Kein Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:35 AM CEST

Data provider

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Associated

  • Rajna, Zalan
  • Mattila, Heli
  • Huotari, Niko
  • Tuovinen, Timo
  • Krüger, Johanna
  • Holst, Sebastian Camillo
  • Korhonen, Vesa
  • Remes, Anne M.
  • Seppänen, Tapio
  • Hennig, Jürgen
  • Nedergaard, Maiken
  • Kiviniemi, Vesa
  • Universität

Time of origin

  • 2021

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