Evidence map›Paper›PMID 34675267›Full record

ArticleScientific reports2021

Characteristics of serum metabolites in sporadic amyotrophic lateral sclerosis patients based on gas chromatography-mass spectrometry.

Rui Jia, Qiaoyi Chen, Qingqing Zhou, Ronghua Zhang, Jiaoting Jin, Fangfang Hu, Xiao Liu, Xing Qin, Li Kang, Songzhen Zhao and 2 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.6field-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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
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  5. Metabolomic analyses of amyotrophic lateral sclerosis, muscle cramps, and TJ-68 treatment.Metabolomics : Official journal of the Metabolomic Society · 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

12 authors at 2 institutions in 1 country.

Rui JiaDepartment of Neurology, The First Affiliated Hospital, Xi'an Jiaotong University, 277 Western Yanta Rd, Xi'an, 710061, China.
Qiaoyi ChenDepartment of Cell Biology and Genetics, Xian Jiaotong University Health Science Center, Xi'an, China.
Qingqing ZhouDepartment of Neurology, The First Affiliated Hospital, Xi'an Jiaotong University, 277 Western Yanta Rd, Xi'an, 710061, China.
Ronghua ZhangDepartment of Neurology, The First Affiliated Hospital, Xi'an Jiaotong University, 277 Western Yanta Rd, Xi'an, 710061, China.
Jiaoting JinDepartment of Neurology, The First Affiliated Hospital, Xi'an Jiaotong University, 277 Western Yanta Rd, Xi'an, 710061, China.
Fangfang HuDepartment of Neurology, The First Affiliated Hospital, Xi'an Jiaotong University, 277 Western Yanta Rd, Xi'an, 710061, China.
Xiao LiuDepartment of Neurology, The First Affiliated Hospital, Xi'an Jiaotong University, 277 Western Yanta Rd, Xi'an, 710061, China.
Xing QinDepartment of Neurology, The First Affiliated Hospital, Xi'an Jiaotong University, 277 Western Yanta Rd, Xi'an, 710061, China.
Li KangDepartment of Neurology, The First Affiliated Hospital, Xi'an Jiaotong University, 277 Western Yanta Rd, Xi'an, 710061, China.
Songzhen ZhaoDepartment of Neurology, The First Affiliated Hospital, Xi'an Jiaotong University, 277 Western Yanta Rd, Xi'an, 710061, China.
Yonghui DangKey Laboratory of Environment and Genes Related to Diseases of the Education Ministry, Key Laboratory of the Health Ministry for Forensic Medicine, College of Medicine and Forensics, Xi'an Jiaotong University Health Science Center, Xi'an, China. psydyh@mail.xjtu.edu.cn.
Jingxia DangDepartment of Neurology, The First Affiliated Hospital, Xi'an Jiaotong University, 277 Western Yanta Rd, Xi'an, 710061, China. jxdang2000@126.com.
First Affiliated Hospital of Xi'an Jiaotong University · CNXi'an Jiaotong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To identify differential metabolites and metabolic pathways and provide guidance for the novel biomarkers for diagnosis and prognosis of amyotrophic lateral sclerosis (ALS). ALS patients and people without nervous diseases were recruited. Metabolomic analysis was performed using gas chromatography-mass spectrometry (GC/MS). The orthogonal projections to latent structures discriminant analysis (OPLS-DA) were used to identify differential metabolites. Kyoto Encyclopedia of Genes and Genomes and MetaboAnalyst were used to identify metabolic pathways. 75 metabolites were detected and aligned. The OPLS-DA showed the metabolomic profile of ALS patients and those in the fast-progression and slow-progression ALS groups differed from that of CTRL (p < 0.05). The levels of maltose, glyceric acid, lactic acid, beta-alanine, phosphoric acid, glutamic acid, ethanolamine and glycine in ALS were significantly higher, while 2,4,6-tri-tert-butylbenzenethiol was lower. Glycine, serine and threonine metabolism, D-glutamine and D-glutamate metabolism, alanine, aspartate, and glutamate metabolism, beta-alanine metabolism, and pyruvate metabolism were significantly altered metabolic pathways in ALS. ROC was used to discriminate ALS from CTRL with an AUC of 0.898 (p < 0.001) using 2,4,6-tri-tert-butylbenzenethiol, beta-alanine, glycine, and ethanolamine. The serum metabolites and metabolic pathways in ALS patients are significantly altered compared with CTRL. These findings may contribute to the early diagnosis of ALS.

Indexed as

Amyotrophic Lateral SclerosisBiomarkersCase-Control StudiesGas Chromatography-Mass SpectrometryHumansMetabolomicsBiomarkers

Identifiers

PMID34675267
PMCPMC8531355
OpenAlexW3206117410

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.