Evidence map›Paper›PMID 26823470›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2016

Aging alters the dampening of pulsatile blood flow in cerebral arteries.

Laleh Zarrinkoob, Khalid Ambarki, Anders Wåhlin, Richard Birgander, Bo Carlberg, Anders Eklund, Jan Malm

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed
5.4field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

84 citing papers in PubMed, 128 citations in OpenAlex.

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24 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Laleh ZarrinkoobDepartment of Pharmacology and Clinical Neuroscience, Umeå University, Umeå, Sweden laleh.zarrinkoob@umu.se.
Khalid AmbarkiDepartment of Radiation Sciences, Umeå University, Umeå, Sweden Centre for Biomedical Engineering and Physics, Umeå University, Umeå, Sweden.
Anders WåhlinDepartment of Radiation Sciences, Umeå University, Umeå, Sweden Umeå Center for Functional Brain Imaging, Umeå University, Umeå, Sweden.
Richard BirganderDepartment of Radiation Sciences, Umeå University, Umeå, Sweden.
Bo CarlbergDepartment of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden.
Anders EklundDepartment of Radiation Sciences, Umeå University, Umeå, Sweden Centre for Biomedical Engineering and Physics, Umeå University, Umeå, Sweden.
Jan MalmDepartment of Pharmacology and Clinical Neuroscience, Umeå University, Umeå, Sweden.
Umeå University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Excessive pulsatile flow caused by aortic stiffness is thought to be a contributing factor for several cerebrovascular diseases. The main purpose of this study was to describe the dampening of the pulsatile flow from the proximal to the distal cerebral arteries, the effect of aging and sex, and its correlation to aortic stiffness. Forty-five healthy elderly (mean age 71 years) and 49 healthy young (mean age 25 years) were included. Phase-contrast magnetic resonance imaging was used for measuring blood flow pulsatility index and dampening factor (proximal artery pulsatility index/distal artery pulsatility index) in 21 cerebral and extra-cerebral arteries. Aortic stiffness was measured as aortic pulse wave velocity. Cerebral arterial pulsatility index increased due to aging and this was more pronounced in distal segments of cerebral arteries. There was no difference in pulsatility index between women and men. Dampening of pulsatility index was observed in all cerebral arteries in both age groups but was significantly higher in young subjects than in elderly. Pulse wave velocity was not correlated with cerebral arterial pulsatility index. The increased pulsatile flow in elderly together with reduced dampening supports the pulse wave encephalopathy theory, since it implies that a higher pulsatile flow is reaching distal arterial segments in older subjects.

Indexed as

AdultAgedAge FactorsAgingCerebral ArteriesFemaleHumansMagnetic Resonance ImagingMalePulsatile FlowPulse Wave AnalysisSex FactorsVascular StiffnessAgingcerebral hemodynamicscerebrovascular diseasecognitive neurologymagnetic resonance imagingphysiologypulsatility index

Identifiers

PMID26823470
PMCPMC5012521
OpenAlexW2415367695

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.