Evidence map›Paper›PMID 26562062›Full record

ArticleEpidemiology (Cambridge, Mass.)2016

The Impact of Multipollutant Clusters on the Association Between Fine Particulate Air Pollution and Microvascular Function.

Petter L Ljungman, Elissa H Wilker, Mary B Rice, Elena Austin, Joel Schwartz, Diane R Gold, Petros Koutrakis, Emelia J Benjamin, Joseph A Vita, Gary F Mitchell and 3 more

Abstract read
In one paragraph

Article in Epidemiology (Cambridge, Mass.), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–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

13 citing papers in PubMed.

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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

13 authors.

Petter L LjungmanCardiovascular Epidemiology Research Unit, Department of Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts.
Elissa H WilkerCardiovascular Epidemiology Research Unit, Department of Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts.
Mary B RiceCardiovascular Epidemiology Research Unit, Department of Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts.
Elena AustinDepartment of Environmental and Occupational Health, School of Public Health, University of Washington, Seattle, Washington.
Joel SchwartzDepartment of Environmental Health, Harvard School of Public Health, Boston, Massachusetts.
Diane R GoldDepartment of Environmental Health, Harvard School of Public Health, Boston, Massachusetts.
Petros KoutrakisDepartment of Environmental Health, Harvard School of Public Health, Boston, Massachusetts.
Emelia J BenjaminThe National Heart Lung Blood Institute and Boston University's Framingham Heart Study, Framingham, Massachusetts.
Joseph A VitaThe National Heart Lung Blood Institute and Boston University's Framingham Heart Study, Framingham, Massachusetts.
Gary F MitchellCardiovascular Engineering Inc, Norwood, Massachusetts.
Ramachandran S VasanThe National Heart Lung Blood Institute and Boston University's Framingham Heart Study, Framingham, Massachusetts.
Naomi M Hamburg *The National Heart Lung Blood Institute and Boston University's Framingham Heart Study, Framingham, Massachusetts.
Murray A Mittleman *Cardiovascular Epidemiology Research Unit, Department of Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts.

Funding

THE FRAMINGHAM HEART STUDYN01HC25195 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI RAMACHANDRAN, VASAN S · 2007 to 2014
$83.8M
Translational Research Support CoreP30ES000002 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI SUSAN A KORRICK · 1985 to 2026
$44.6M
Effect of Ambient Particles on Acute Stroke OnsetP01ES009825 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI MITTLEMAN, MURRAY A · 1999 to 2009
$17.4M
Biostatistics, Epidemiologic & Bioinformatic Training in Environmental HealthT32ES015459 · NIEHS · UNIVERSITY OF WASHINGTON · PI June T. Spector · 2009 to 2026
$10.6M
Vascular Function in the Framingham Third GenerationR01HL070100 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI BENJAMIN, EMELIA J. · 2002 to 2005
$2.4M
ENDOTHELIAL VASAMOTOR FUNCTION IN THE FRAMINGHAM STUDYR01HL060040 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI BENJAMIN, EMELIA J. · 1999 to 2002
$595k
Traffic pollution, brain structure and cognitive function: the role of subclinicaK99ES022243 · NIEHS · BETH ISRAEL DEACONESS MEDICAL CENTER · PI WILKER, ELISSA · 2013 to 2014
$180k
Air pollution exposure and COPD in the Framingham Heart StudyF32ES023352 · NIEHS · MASSACHUSETTS GENERAL HOSPITAL · PI RICE, MARY B · 2013 to 2015
$122k
THE FRAMINGHAM HEART STUDY-N01HC25195-268025195-268025195N01HC025195 · HC · TRUSTEES OF BOSTON UNIVERSITY · PI WOLF, PHILIP A · 2002 to 2006
–
NHLBI NIH HHS 1R01HL60040NHLBI NIH HHS 1R01HL70100NHLBI NIH HHS N01 HC025195NHLBI NIH HHS N01HC 25195NHLBI NIH HHS R01 HL060040NHLBI NIH HHS R01 HL070100NIEHS NIH HHS 1F32ES023352-01NIEHS NIH HHS ES009825NIEHS NIH HHS F32 ES023352NIEHS NIH HHS K99 ES022243NIEHS NIH HHS K99ES022243NIEHS NIH HHS P01 ES009825NIEHS NIH HHS P30 ES000002NIEHS NIH HHS P30ES000002NIEHS NIH HHS T32 ES015459NIEHS NIH HHS T32ES015459
6 · The paper itself

Abstract

backgroundPrior studies including the Framingham Heart Study have suggested associations between single components of air pollution and vascular function; however, underlying mixtures of air pollution may have distinct associations with vascular function.

methodsWe used a k-means approach to construct five distinct pollution mixtures from elemental analyses of particle filters, air pollution monitoring data, and meteorology. Exposure was modeled as an interaction between fine particle mass (PM2.5), and concurrent pollution cluster. Outcome variables were two measures of microvascular function in the fingertip in the Framingham Offspring and Third Generation cohorts from 2003 to 2008.

resultsIn 1,720 participants, associations between PM2.5 and baseline pulse amplitude tonometry differed by air pollution cluster (interaction P value 0.009). Higher PM2.5 on days with low mass concentrations but high proportion of ultrafine particles from traffic was associated with 18% (95% confidence interval: 4.6%, 33%) higher baseline pulse amplitude per 5 μg/m and days with high contributions of oil and wood combustion with 16% (95% confidence interval: 0.2%, 34%) higher baseline pulse amplitude. We observed no variation in associations of PM2.5 with hyperemic response to ischemia observed across air pollution clusters.

conclusionsPM2.5 exposure from air pollution mixtures with large contributions of local ultrafine particles from traffic, heating oil, and wood combustion was associated with higher baseline pulse amplitude but not hyperemic response. Our findings suggest little association between acute exposure to air pollution clusters reflective of select sources and hyperemic response to ischemia, but possible associations with excessive small artery pulsatility with potentially deleterious microvascular consequences.

Indexed as

Pulsatile FlowAdultAgedAir PollutionCohort StudiesEnvironmental ExposureFemaleFingersHumansHyperemiaIschemiaLinear ModelsMaleManometryMicrovesselsMiddle AgedParticulate Matter

Identifiers

PMID26562062
PMCPMC5257194

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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.