Evidence map›Paper›PMID 33705428›Full record

ArticlePloS one2021

Lipid profiles and differential lipids in serum related to severity of community-acquired pneumonia: A pilot study.

Li Chen, Yali Zheng, Lili Zhao, Ying Zhang, Lu Yin, Yukun He, Xinqian Ma, Yu Xu, Zhancheng Gao

Abstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Clinical lipidomics in bacterial sepsis: a systematic review of serum and plasma evaluations.Metabolomics : Official journal of the Metabolomic Society · 2026
    Pooled it
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. The Plasma Lipidomic Landscape in Patients with Sepsis due to Community-acquired Pneumonia.American journal of respiratory and critical care medicine · 2024
    Article
  8. Observational
  9. Article
  10. 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

9 authors.

Li ChenDepartment of Respiratory & Critical Care Medicine, Peking University People's Hospital, Beijing, China.
Yali ZhengDepartment of Respiratory, Critical Care & Sleep Medicine, Xiang'an Hospital of Xiamen University, Xiamen, China.
Lili ZhaoDepartment of Respiratory & Critical Care Medicine, Peking University People's Hospital, Beijing, China.
Ying ZhangDepartment of Respiratory & Critical Care Medicine, Peking University People's Hospital, Beijing, China.
Lu YinDepartment of Respiratory & Critical Care Medicine, Peking University People's Hospital, Beijing, China.
Yukun HeDepartment of Respiratory & Critical Care Medicine, Peking University People's Hospital, Beijing, China.
Xinqian MaDepartment of Respiratory & Critical Care Medicine, Peking University People's Hospital, Beijing, China.
Yu XuDepartment of Respiratory & Critical Care Medicine, Peking University People's Hospital, Beijing, China.
Zhancheng GaoDepartment of Respiratory & Critical Care Medicine, Peking University People's Hospital, Beijing, China.ORCID 0000-0001-7415-1416

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to characterize the lipidomic responses to community-acquired pneumonia (CAP) and provide new insight into the underlying mechanisms of pathogenesis and potential avenues for diagnostic and therapeutic treatments. This study was performed from January 2017 to October 2018. Lipidomic profiles were generated using ultra high-performance liquid chromatography with tandem mass spectrometry (UHPLC-MS/MS) platform. Spearman's rank correlation test and multiple linear regression analysis were applied to explore the correlation between changes in the relative abundance of lipids and clinical parameters. Kaplan-Meier methods were used to build 30-day survival curves. From the UHPLC-MS/MS results, a total of 509 and 195 lipid species were detected in the positive and negative ionization mode respectively. Positive ionization covered six lipid classes (glycerol-phospholipids, glycerolipids, sphingolipids, sterol-lipids, prenol-lipids, and fatty acid), whilst negative ionization covered three (glycerol-phospholipids, sphingolipids, fatty acid). Four lipids were selected as targets: PC (16:0_18:1), PC (18:2_20:4), PC (36:4), and PC (38:6). The relative increase of the areas under the curves for all four lipids were superior to the pneumonia severity index and CURB-65 (confusion, urea, respiratory rate, blood pressure, and age ≥65 years old) for discriminating severe CAP from CAP. Decreasing relative levels of PC (18:2_20:4), PC (38:6), and PC (36:4) were negatively related to fraction of inspiration O2; Changes in the relative abundance of PC (16:0_18:1) and PC (18:2_20:4) had significantly linear relationship with procalcitonin. Patients with an elevated level of PC (16:0_18:1) had significantly longer duration of hospital stays. As the relative abundance of PC (18:2_20:4), PC (36:4), and PC (38:6) decreased, the length of hospitalization days and 30-day mortality rate increased significantly (all log-rank p<0.05). Therefore, using the UHPLC-MS/MS platform's serum lipidomic approach can help reveal changes in lipid abundance during CAP and establish lipid profiles related to disease severity.

Indexed as

LipidomicsAgedCommunity-Acquired InfectionsFemaleHumansLipidsMalePilot ProjectsLipids

Identifiers

PMID33705428
PMCPMC7951898

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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.