Evidence map›Paper›PMID 37392401›Full record

ArticleAge and ageing2023

Glymphatic function plays a protective role in ageing-related cognitive decline.

Junjun Wang, Ying Zhou, Kemeng Zhang, Wang Ran, Xiao Zhu, Wansi Zhong, Yuping Chen, Jiaping Li, Jianzhong Sun, Min Lou

Abstract read
In one paragraph

Article in Age and ageing, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
–field-weighted citation impact
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

47 citing papers in PubMed.

  1. Effects of inhaled aromatherapy on sleep quality and cognitive function in older adults: a randomised controlled trial.The journals of gerontology. Series A, Biological sciences and medical sciences · 2026
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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

10 authors.

Junjun WangDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, China.
Ying ZhouDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, China.
Kemeng ZhangDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, China.
Wang RanDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, China.
Xiao ZhuDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, China.
Wansi ZhongDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, China.
Yuping ChenDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, China.
Jiaping LiDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, China.
Jianzhong SunDepartment of Radiology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, China.
Min LouDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, China.

Funding

National Natural Science Foundation of China 81,971,101
6 · The paper itself

Abstract

objectiveThe glymphatic pathway, characterised as a cerebral drainage system, influences cognitive function in neurodegenerative diseases; however, evidence is limited in a normal ageing population. The aim of this study was to investigate the effect of glymphatic function on ageing-related cognitive decline.

methodsWe retrospectively reviewed the Cognitive Impairment, Retinopathy, and Cerebrovascular Lesions in the Elderly (CIRCLE) study, and participants with multi-model magnetic resonance imaging (MRI) scans and Mini-Mental State Examinations (MMSE) were enrolled. Glymphatic function was evaluated via the diffusion tensor imaging along the perivascular space (DTI-ALPS) index. Regression models were used to estimate the impact of the DTI-ALPS index on cognitive decline cross-sectionally and longitudinally. We further analysed the mediation effect of the DTI-ALPS on age and cognitive function.

resultsA total of 633 participants were included in this study (48.2% female; mean age, 62.8 ± 8.9 years). The DTI-ALPS index was positively associated with cognitive function cross-sectionally (β = 0.108, P = 0.003), and was an independent protective factor for cognitive decline longitudinally (odds ratio (OR) = 0.029, P = 0.007). The DTI-ALPS index declined progressively with ageing (r = -0.319, P <0.001), and the decrease was more pronounced after 65 years of age. Furthermore, the DTI-ALPS index mediated the relationship between age and MMSE score (β = -0.016, P <0.001). The mediation effect accounted for 21.3%, which was higher in subjects aged over 65 years (25.3%) compared with those aged under 65 years (5.3%).

conclusionGlymphatic function played a protective role in normal ageing-related cognitive decline, which may serve as a potential therapeutic target against cognitive decline in future.

Indexed as

Cognitive DysfunctionDiffusion Tensor ImagingAgedAgingCognitionFemaleHumansMaleMiddle AgedRetrospective Studiesageingcognitiondiffusion tensor imaging along the perivascular space (DTI-ALPS) indexglymphatic functionolder people

Identifiers

PMID37392401
PMCPMC10314787

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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.