Evidence map›Paper›PMID 37020298›Full record

ArticleBMC geriatrics2023

Exploring the aging process of cognitively healthy adults by analyzing cerebrospinal fluid metabolomics using liquid chromatography-tandem mass spectrometry.

Fu-Chao Liu, Mei-Ling Cheng, Chi-Jen Lo, Wen-Chuin Hsu, Gigin Lin, Huan-Tang Lin

Open access · goldAbstract read
In one paragraph

Article in BMC geriatrics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

11 citing papers in PubMed, 13 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

Fu-Chao Liu *Department of Anesthesiology, Chang Gung Memorial Hospital, 5 Fu-Shin Street, Kwei-Shan, Taoyuan, 333, Taiwan.
Mei-Ling Cheng *Metabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan, 333, Taiwan.
Chi-Jen LoMetabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan, 333, Taiwan.
Wen-Chuin HsuCollege of Medicine, Chang Gung University, Taoyuan, 333, Taiwan.
Gigin LinClinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Huan-Tang LinDepartment of Anesthesiology, Chang Gung Memorial Hospital, 5 Fu-Shin Street, Kwei-Shan, Taoyuan, 333, Taiwan. sanctuary12@cgmh.org.tw.
Chang Gung Memorial Hospital · TWChang Gung University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDuring biological aging, significant metabolic dysregulation in the central nervous system may lead to cognitive decline and neurodegeneration. However, the metabolomics of the aging process in cerebrospinal fluid (CSF) has not been thoroughly explored.

methodsIn this cohort study of CSF metabolomics using liquid chromatography-mass spectrometry (LC-MS), fasting CSF samples collected from 92 cognitively unimpaired adults aged 20-87 years without obesity or diabetes were analyzed.

resultsWe identified 37 metabolites in these CSF samples with significant positive correlations with aging, including cysteine, pantothenic acid, 5-hydroxyindoleacetic acid (5-HIAA), aspartic acid, and glutamate; and two metabolites with negative correlations, asparagine and glycerophosphocholine. The combined alterations of asparagine, cysteine, glycerophosphocholine, pantothenic acid, sucrose, and 5-HIAA showed a superior correlation with aging (AUC = 0.982). These age-correlated changes in CSF metabolites might reflect blood-brain barrier breakdown, neuroinflammation, and mitochondrial dysfunction in the aging brain. We also found sex differences in CSF metabolites with higher levels of taurine and 5-HIAA in women using propensity-matched comparison.

conclusionsOur LC-MS metabolomics of the aging process in a Taiwanese population revealed several significantly altered CSF metabolites during aging and between the sexes. These metabolic alterations in CSF might provide clues for healthy brain aging and deserve further exploration.

Indexed as

AgingChromatography, LiquidCysteineMetabolomeTandem Mass SpectrometryAdultAgedAged, 80 and overAsparagineCognitionCohort StudiesFastingFemaleHealthy VolunteersHumansHydroxyindoleacetic AcidAsparagineCysteineHydroxyindoleacetic AcidPantothenic AcidAging processCerebrospinal fluidLiquid chromatography-mass spectrometryMetabolomics

Identifiers

PMID37020298
PMCPMC10077689
OpenAlexW4362638888

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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.