Evidence map›Paper›PMID 38459400›Full record

SynthesisNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2024

Meta-analysis of the relationship between the number and location of perivascular spaces in the brain and cognitive function.

Ling Liu, Liangdan Tu, Qiuyan Shen, Yi Bao, Fang Xu, Dan Zhang, Yanming Xu

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.8field-weighted citation impact, top 32% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Trial
  2. Review
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.

Ling Liu *Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Liangdan Tu *Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Qiuyan ShenDepartment of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Yi BaoDepartment of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Fang XuDepartment of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Dan ZhangDepartment of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Yanming XuDepartment of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China. neuroxym999@163.com.ORCID http://orcid.org/0000-0002-4172-107X
Sichuan University · CN

Funding

Key Research and Development Program of Sichuan Province 2023YFS0268
6 · The paper itself

Abstract

backgroundCerebral perivascular spaces are part of the cerebral microvascular structure and play a role in lymphatic drainage and the removal of waste products from the brain. Relationships of the number and location of such spaces with cognition are unclear.

objectiveTo meta-analyze available data on potential associations of severity and location of perivascular spaces with cognitive performance.

methodsWe searched PubMed, EMBASE, Web of Science and the Cochrane Central Registry of Controlled Trials for relevant studies published between January 2000 and July 2023. Performance on different cognitive domains was compared to the severity of perivascular spaces in different brain regions using comprehensive meta-analysis. When studies report unadjusted and adjusted means, we use adjusted means for meta-analysis. The study protocol is registered in the PROSPERO database (CRD42023443460).

resultsWe meta-analyzed data from 26 cross-sectional studies and two longitudinal studies involving 7908 participants. In most studies perivascular spaces was using a visual rating scale. A higher number of basal ganglia perivascular spaces was linked to lower general intelligence and attention. Moreover, increased centrum semiovale perivascular spaces were associated with worse general intelligence, executive function, language, and memory. Conversely, higher hippocampus perivascular spaces were associated with enhanced memory and executive function. Subgroup analyses revealed variations in associations among different disease conditions.

conclusionsA higher quantity of perivascular spaces in the brain is correlated with impaired cognitive function. The location of these perivascular spaces and the underlying disease conditions may influence the specific cognitive domains that are affected. SYSTEMATIC REVIEW REGISTRATION: The study protocol has been registered in the PROSPERO database (CRD42023443460).

Indexed as

BrainCognitionGlymphatic SystemHumansBrain magnetic resonance imagingCognitionMeta-analysisPerivascular space

Identifiers

PMID38459400
OpenAlexW4392630832

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.