Evidence map›Paper›PMID 34794943›Full record

ArticleAJNR. American journal of neuroradiology2022

An Investigation of Water Diffusivity Changes along the Perivascular Space in Elderly Subjects with Hypertension.

J Kikuta, K Kamagata, K Takabayashi, T Taoka, H Yokota, C Andica, A Wada, Y Someya, Y Tamura, R Kawamori and 3 more

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

38 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
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  8. MR Imaging Indices for Brain Interstitial Fluid Dynamics and the Effects of Orexin Antagonists on Sleep.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2025
    Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Decreased diffusivity along the perivascular space and cerebral hemodynamic disturbance in adult moyamoya disease.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
  16. Review
  17. Diffusion Tensor Image Analysis ALong the Perivascular Space (DTI-ALPS): Revisiting the Meaning and Significance of the Method.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2024
    Review
  18. The glymphatic system and cerebral small vessel disease.Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association · 2024
    Review
  19. Review
  20. Association between the Putative Meningeal Lymphatics at the Posterior Wall of the Sigmoid Sinus and Delayed Contrast-agent Elimination from the Cerebrospinal Fluid.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2024
    Article
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

13 authors at 5 institutions in 3 countries.

J KikutaFrom the Department of Radiology (J.K., K.K., K.T., C.A., A.W., S.A.) j.kikuta.hy@juntendo.ac.jp.ORCID 0000-0003-1324-8614
K KamagataFrom the Department of Radiology (J.K., K.K., K.T., C.A., A.W., S.A.).ORCID 0000-0001-5028-218X
K TakabayashiFrom the Department of Radiology (J.K., K.K., K.T., C.A., A.W., S.A.).ORCID 0000-0002-5562-1504
T TaokaDepartment of Innovative Biomedical Visualization (T.T.), Graduate School of Medicine, Nagoya University, Aichi, Japan.ORCID 0000-0001-9227-0240
H YokotaDepartment of Diagnostic Radiology and Radiation Oncology (H.Y.), Graduate School of Medicine, Chiba University, Chiba, Japan.ORCID 0000-0003-2389-0299
C AndicaFrom the Department of Radiology (J.K., K.K., K.T., C.A., A.W., S.A.).ORCID 0000-0002-9339-6950
A WadaFrom the Department of Radiology (J.K., K.K., K.T., C.A., A.W., S.A.).ORCID 0000-0003-3432-0267
Y SomeyaSportology Center (Y.S., Y.T., R.K., H.W.).ORCID 0000-0003-1657-3199
Y TamuraSportology Center (Y.S., Y.T., R.K., H.W.).ORCID 0000-0002-1685-7821
R KawamoriSportology Center (Y.S., Y.T., R.K., H.W.).ORCID 0000-0002-9686-9098
H WatadaSportology Center (Y.S., Y.T., R.K., H.W.).ORCID 0000-0001-5961-1816
S NaganawaDepartment of Radiology (S.N.), Nagoya University Graduate School of Medicine, Aichi, Japan.ORCID 0000-0002-0214-613X
S AokiFrom the Department of Radiology (J.K., K.K., K.T., C.A., A.W., S.A.).ORCID 0000-0002-8491-0698
Norwegian Womens Public Health Association · NOEnglish Institute of Sport · GBNagoya University · JPChiba University · JPJuntendo University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeHypertension may be related to alterations of the glymphatic system, a waste metabolite drainage system in the brain. We aimed to investigate analysis along the perivascular space index changes in elderly subjects with hypertension. MATERIALS AND

methodsDiffusion-weighted images were acquired from 126 subjects, including 63 subjects with hypertension (25 men and 38 women; mean age, 72.45 years) and 63 age- and sex-matched controls (25 men and 38 women; mean age, 72.16 years). We calculated the analysis along the perivascular space index as a ratio of the mean of x-axis diffusivities in the projection and association areas to the mean of y-axis diffusivity in the projection area and z-axis diffusivity in the association area. The left, right, and mean analysis along the perivascular space indices of both hemispheres were compared between the hypertension and control groups using a Mann-Whitney

resultsThe left (

conclusionsOur results are consistent with a model in which hypertension causes glymphatic dysfunction.

Indexed as

Glymphatic SystemHypertensionAgedDiffusion Magnetic Resonance ImagingDiffusion Tensor ImagingFemaleHumansMaleWaterWater

Identifiers

PMID34794943
PMCPMC8757561
OpenAlexW3212057793

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.