Evidence map›Paper›PMID 34837967›Full record

ArticleBMC cardiovascular disorders2021

ABCA1 and ABCG1 DNA methylation in epicardial adipose tissue of patients with coronary artery disease.

Valentina V Miroshnikova, Alexandra A Panteleeva, Irina A Pobozheva, Natalia D Razgildina, Ekaterina A Polyakova, Anton V Markov, Olga D Belyaeva, Olga A Berkovich, Elena I Baranova, Maria S Nazarenko and 2 more

Open access · goldAbstract read
In one paragraph

Article in BMC cardiovascular disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.7field-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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
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  8. Biomedicines · 2025
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  15. Role ofJournal of personalized medicine · 2022
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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 3 institutions in 1 country.

Valentina V MiroshnikovaPetersburg Nuclear Physics Institute Named By B.P. Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russian Federation. miroshnikova_vv@pnpi.nrcki.ru.ORCID 0000-0003-3160-2314
Alexandra A PanteleevaPetersburg Nuclear Physics Institute Named By B.P. Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russian Federation.
Irina A PobozhevaPetersburg Nuclear Physics Institute Named By B.P. Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russian Federation.
Natalia D RazgildinaPetersburg Nuclear Physics Institute Named By B.P. Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russian Federation.
Ekaterina A PolyakovaPavlov First Saint Petersburg State Medical University, St.-Petersburg, Russian Federation.
Anton V MarkovLaboratory of Population Genetics, Research Institute of Medical Genetics, Tomsk, Russian Federation.
Olga D BelyaevaPavlov First Saint Petersburg State Medical University, St.-Petersburg, Russian Federation.
Olga A BerkovichPavlov First Saint Petersburg State Medical University, St.-Petersburg, Russian Federation.
Elena I BaranovaPavlov First Saint Petersburg State Medical University, St.-Petersburg, Russian Federation.
Maria S NazarenkoLaboratory of Population Genetics, Research Institute of Medical Genetics, Tomsk, Russian Federation.
Valery P PuzyrevLaboratory of Population Genetics, Research Institute of Medical Genetics, Tomsk, Russian Federation.
Sofya N PchelinaPetersburg Nuclear Physics Institute Named By B.P. Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russian Federation.
First Pavlov State Medical University of St. Petersburg · RUResearch Institute of Medical Genetics of Russian Academy of Medical Sciences · RUPetersburg Nuclear Physics Institute · RU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent studies have focused on the potential role of epicardial adipose tissue (EAT) in the development of coronary artery disease (CAD). ABCA1 and ABCG1 transporters regulate cell cholesterol content and reverse cholesterol transport. We aimed to determine whether DNA methylation and mRNA levels of the ABCA1 and ABCG1 genes in EAT and subcutaneous adipose tissue (SAT) were associated with CAD.

methodsPaired EAT and SAT samples were collected from 82 patients undergoing elective cardiac surgery either for coronary artery bypass grafting (CAD group, N = 66) or valve surgery (NCAD group, N = 16). ABCA1 and ABCG1 mRNA levels in EAT and SAT samples were analyzed using real time polymerase chain reaction, ABCA1 protein levels in EAT samples were assessed by western blotting. ABCA1 and ABCG1 DNA methylation analysis was performed in 24 samples from the CAD group and 9 samples from the NCAD group via pyrosequencing.

resultsDNA methylation levels in the ABCA1 promoter and ABCG1 cg27243685 and cg06500161 CpG sites were higher in EAT samples from patients with CAD compared with NCAD (21.92% vs 10.81%, p = 0.003; 71.51% vs 68.42%, p = 0.024; 46.11% vs 37.79%, p = 0.016, respectively). In patients with CAD, ABCA1 and ABCG1 DNA methylation levels were higher in EAT than in SAT samples (p < 0.05). ABCA1 mRNA levels in EAT samples were reduced in the subgroup of patients with CAD and concomitant carotid artery disease or peripheral artery disease compared with the NCAD group (p = 0.024). ABCA1 protein levels in EAT samples tended to be lower in CAD patients than in the NCAD group (p = 0.053). DNA methylation levels at the ABCG1 cg27243685 site positively correlated with plasma triglyceride concentration (r = 0.510, p = 0.008), body mass index (r = 0.556, p = 0.013) and waist-to-hip ratio (r = 0.504, p = 0.012) in SAT samples.

conclusionCAD is associated with ABCA1 and ABCG1 DNA hypermethylation in EAT. CAD with concomitant carotid artery disease or peripheral artery disease is accompanied by decreased ABCA1 gene expression in EAT. DNA methylation levels at the ABCG1 cg27243685 locus in SAT are associated with hypertriglyceridemia and obesity.

Indexed as

DNA MethylationAdipose TissueAdultAgedATP Binding Cassette Transporter 1ATP Binding Cassette Transporter, Subfamily G, Member 1Coronary Artery DiseaseCpG IslandsFemaleGene Expression RegulationHumansHypertriglyceridemiaMaleMiddle AgedObesityPericardiumABCA1 protein, humanABCG1 protein, humanATP Binding Cassette Transporter 1ATP Binding Cassette Transporter, Subfamily G, Member 1ABCA1 and ABCG1 transportersCoronary artery diseaseDNA methylationEpicardial adipose tissue

Identifiers

PMID34837967
PMCPMC8627066
OpenAlexW3215355024

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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.