Evidence map›Paper›PMID 34539639›Full record

ArticleFrontiers in immunology2021

Comparative Metabolomics Reveals the Microenvironment of Common T-Helper Cells and Differential Immune Cells Linked to Unique Periapical Lesions.

Alaa Muayad Altaie, Thenmozhi Venkatachalam, Lakshman P Samaranayake, Sameh S M Soliman, Rifat Hamoudi

Open access · goldAbstract readComparative Study
In one paragraph

Article in Frontiers in immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

15 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Article
  3. Serum metabolomics identifies biomarkers in radicular cysts.Metabolomics : Official journal of the Metabolomic Society · 2025
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  4. Review
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  13. Phenolic Contents and Antioxidant Activity ofAntioxidants (Basel, Switzerland) · 2022
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  15. TLR4 expression and its immunopathogenic role in inflammatory radicular cysts: a clinicopathological study.Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie
    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

5 authors at 3 institutions in 3 countries.

Alaa Muayad AltaieResearch Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates.
Thenmozhi VenkatachalamResearch Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates.
Lakshman P SamaranayakeDepartment of Oral and Craniofacial Health Sciences, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates.
Sameh S M SolimanResearch Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates.
Rifat HamoudiResearch Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates.
University of Sharjah · AEUniversity College London · GBUniversity of Hong Kong · HK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Periapical abscesses, radicular cysts, and periapical granulomas are the most frequently identified pathological lesions in the alveolar bone. While little is known about the initiation and progression of these conditions, the metabolic environment and the related immunological behaviors were examined for the first time to model the development of each pathological condition. Metabolites were extracted from each lesion and profiled using gas chromatography-mass spectrometry in comparison with healthy pulp tissue. The metabolites were clustered and linked to their related immune cell fractions. Clusters I and J in the periapical abscess upregulated the expression of MMP-9, IL-8, CYP4F3, and VEGF, while clusters L and M were related to lipophagy and apoptosis in radicular cyst, and cluster P in periapical granuloma, which contains L-(+)-lactic acid and ethylene glycol, was related to granuloma formation. Oleic acid, 17-octadecynoic acid, 1-nonadecene, and L-(+)-lactic acid were significantly the highest unique metabolites in healthy pulp tissue, periapical abscess, radicular cyst, and periapical granuloma, respectively. The correlated enriched metabolic pathways were identified, and the related active genes were predicted. Glutamatergic synapse (16-20),-hydroxyeicosatetraenoic acids, lipophagy, and retinoid X receptor coupled with vitamin D receptor were the most significantly enriched pathways in healthy control, abscess, cyst, and granuloma, respectively. Compared with the healthy control, significant upregulation in the gene expression of

Indexed as

AdultAgedFemaleHumansMaleMetabolomicsMiddle AgedPeriapical AbscessPeriapical GranulomaRadicular CystT-Lymphocytes, Helper-InducerYoung Adultgenehealthy pulpimmunological populationmetabolomics profilingperiapical abscessperiapical granulomaperiapical lesionsradicular cyst

Identifiers

PMID34539639
PMCPMC8446658
OpenAlexW3197699523

What OpenQuestion holds

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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.