Evidence map›Paper›PMID 25186795›Full record

ArticleCirculation research2014

CD36-dependent 7-ketocholesterol accumulation in macrophages mediates progression of atherosclerosis in response to chronic air pollution exposure.

Xiaoquan Rao, Jixin Zhong, Andrei Maiseyeu, Bhavani Gopalakrishnan, Frederick A Villamena, Lung-Chi Chen, Jack R Harkema, Qinghua Sun, Sanjay Rajagopalan

Abstract read
In one paragraph

Article in Circulation research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed
7.4field-weighted citation impact, top 2% 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

87 citing papers in PubMed, 183 citations in OpenAlex.

  1. Review
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  3. Modeling the Exposome in Murine Cardiovascular Disease.JACC. Basic to translational science · 2026
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27 more citing papers are in PubMed but not listed here.

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 at 2 institutions in 1 country.

Xiaoquan Rao *Division of Cardiovascular Medicine, University of Maryland Baltimore, Maryland, USA.
Jixin Zhong *Division of Cardiovascular Medicine, University of Maryland Baltimore, Maryland, USA.
Andrei MaiseyeuDivision of Cardiovascular Medicine, University of Maryland Baltimore, Maryland, USA.
Bhavani GopalakrishnanDepartment of Pharmacology, Davis Heart & Lung Research Institute, The Ohio State University, Columbus, Ohio, USA.
Frederick A VillamenaDepartment of Pharmacology, Davis Heart & Lung Research Institute, The Ohio State University, Columbus, Ohio, USA.
Lung-Chi ChenThe Department of Environmental Medicine, New York University School of Medicine, Tuxedo, New York, USA.
Jack R HarkemaCenter for Integrative Toxicology and Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, Michigan, USA.
Qinghua SunDepartment of Pharmacology, Davis Heart & Lung Research Institute, The Ohio State University, Columbus, Ohio, USA.
Sanjay RajagopalanDivision of Cardiovascular Medicine, University of Maryland Baltimore, Maryland, USA.
University of Maryland, Baltimore · USNew York University · US

Funding

Air Pollution and Hypertension: Vascular MechanismsR01ES015146 · NIEHS · UNIVERSITY OF MARYLAND BALTIMORE · PI RAJAGOPALAN, SANJAY · 2007 to 2018
$4.5M
Environmental Triggers of Cardiometabolic DiseaseR01ES019616 · NIEHS · UNIVERSITY OF MARYLAND BALTIMORE · PI BROOK, ROBERT DANIEL, RAJAGOPALAN, SANJAY · 2011 to 2020
$3.0M
Diet-Environment Interactions in InflammationR01ES017290 · NIEHS · UNIVERSITY OF MARYLAND BALTIMORE · PI RAJAGOPALAN, SANJAY · 2010 to 2014
$1.8M
Air Pollution on Adiposity and Vascular Dysfunction: White or Brown Matters?R01ES018900 · NIEHS · OHIO STATE UNIVERSITY · PI SUN, QINGHUA · 2011 to 2015
$1.7M
Air Pollution Exposure/Atherosclerosis:Vascular MechanismR01ES013406 · NIEHS · OHIO STATE UNIVERSITY · PI RAJAGOPALAN, SANJAY · 2004 to 2007
$1.3M
Air Pollution on Adiposity and Vascular Dysfunction: White or Brown Matters?R56ES018900 · NIEHS · OHIO STATE UNIVERSITY · PI SUN, QINGHUA · 2010 to 2010
$153k
NIEHS NIH HHS ES018900NIEHS NIH HHS R01 ES013406NIEHS NIH HHS R01 ES015146NIEHS NIH HHS R01 ES017290NIEHS NIH HHS R01 ES018900NIEHS NIH HHS R01 ES019616NIEHS NIH HHS R56 ES018900
6 · The paper itself

Abstract

rationaleAir pollution exposure has been shown to potentiate plaque progression in humans and animals. Our previous studies have suggested a role for oxidized lipids in mediating adverse vascular effect of air pollution. However, the types of oxidized lipids formed in response to air pollutants and how this occurs and their relevance to atherosclerosis are not fully understood.

objectiveTo investigate the mechanisms by which particulate matter <2.5 μm (PM2.5) induces progression of atherosclerosis. METHODS AND

resultsAtherosclerosis-prone ApoE(-/-) or LDLR(-/-) mice were exposed to filtered air or concentrated ambient PM2.5 using a versatile aerosol concentrator enrichment system for 6 months. PM2.5 increased 7-ketocholesterol (7-KCh), an oxidatively modified form of cholesterol, in plasma intermediate density lipoprotein/low-density lipoprotein fraction and in aortic plaque concomitant with progression of atherosclerosis and increased CD36 expression in plaque macrophages from PM2.5-exposed mice. Macrophages isolated from PM2.5-exposed mice displayed increased uptake of oxidized lipids without alterations in their efflux capacity. Consistent with these finding, CD36-positive macrophages displayed a heightened capacity for oxidized lipid uptake. Deficiency of CD36 on hematopoietic cells diminished the effect of air pollution on 7-KCh accumulation, foam cell formation, and atherosclerosis.

conclusionsOur results suggest a potential role for CD36-mediated abnormal accumulations of oxidized lipids, such as 7-KCh, in air pollution-induced atherosclerosis progression.

Indexed as

Particulate MatterAnimalsAortaAortic DiseasesApolipoproteins EAtherosclerosisBiological TransportCD36 AntigensDisease Models, AnimalDisease ProgressionFoam CellsHumansHuman Umbilical Vein Endothelial CellsInhalation ExposureKetocholesterolsMacrophages7-ketocholesterolApolipoproteins ECD36 AntigensKetocholesterolsParticulate MatterReceptors, LDL7-ketocholesterolair pollutionatherosclerosisfoam cellsmacrophagesparticulate matter

Identifiers

PMID25186795
PMCPMC4275116
OpenAlexW2083413470

What OpenQuestion holds

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LicenceTDM
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.