Journal article
Ambient air pollution and pulmonary vascular volume on computed tomography: the MESA Air Pollution and Lung cohort studies
The European respiratory journal, Vol.53(6), p.1802116
06/01/2019
DOI: 10.1183/13993003.02116-2018
PMCID: PMC6910868
PMID: 31167881
Abstract
Background: Air pollution alters small pulmonary vessels in animal models. We hypothesised that long-term ambient air pollution exposure would be associated with differences in pulmonary vascular volumes in a population-based study.
Methods: The Multi-Ethnic Study of Atherosclerosis recruited adults in six US cities. Personalised longterm exposures to ambient black carbon, nitrogen dioxide (NO2), oxides of nitrogen (NOx), particulate matter with a 50% cut-off aerodynamic diameter of < 2.5 mu m (PM2.5) and ozone were estimated using spatiotemporal models. In 2010-2012, total pulmonary vascular volume was measured as the volume of detectable pulmonary arteries and veins, including vessel walls and luminal blood volume, on noncontrast chest computed tomography (TPVVCT). Peripheral TPVVCT was limited to the peripheral 2 cm to isolate smaller vessels. Linear regression adjusted for demographics, anthropometrics, smoking, second-hand smoke, renal function and scanner manufacturer.
Results: The mean +/- SD age of the 3023 participants was 69.3 +/- 9.3 years; 46% were never-smokers. Mean exposures were 0.80 mu g.m(-3) black carbon, 14.6 ppb NO2 and 11.0 mu g.m(-3) ambient PM2.5. Mean +/- SD peripheral TPVVCT was 79.2 +/- 18.2 cm(3) and TPVVCT was 129.3 +/- 35.1 cm(3). Greater black carbon exposure was associated with a larger peripheral TPVVCT, including after adjustment for city (mean difference 0.41 (95% CI 0.03-0.79) cm(3) per interquartile range; p= 0.036). Associations for peripheral TPVVCT with NO2 were similar but nonsignificant after city adjustment, while those for PM2.5 were of similar magnitude but nonsignificant after full adjustment. There were no associations for NOx or ozone, or between any pollutant and TPVVCT.
Conclusions: Long-term black carbon exposure was associated with a larger peripheral TPVVCT, suggesting diesel exhaust may contribute to remodelling of small pulmonary vessels in the general population.
Details
- Title: Subtitle
- Ambient air pollution and pulmonary vascular volume on computed tomography: the MESA Air Pollution and Lung cohort studies
- Creators
- Carrie P. Aaron - Columbia UniversityEric A. Hoffman - University of IowaSteven M. Kawut - University of PennsylvaniaJohn H. M. Austin - Columbia UniversityMatthew Budoff - University of California, Los AngelesErin D. Michos - Johns Hopkins MedicineKaren Hinckley Stukovsky - University of WashingtonCoralynn Sack - University of WashingtonAdam A. Szpiro - University of WashingtonKarol D. Watson - University of California, Los AngelesJoel D. Kaufman - University of WashingtonR. Graham Barr - Columbia University
- Resource Type
- Journal article
- Publication Details
- The European respiratory journal, Vol.53(6), p.1802116
- DOI
- 10.1183/13993003.02116-2018
- PMID
- 31167881
- PMCID
- PMC6910868
- NLM abbreviation
- Eur Respir J
- ISSN
- 0903-1936
- eISSN
- 1399-3003
- Publisher
- European Respiratory Soc Journals Ltd
- Number of pages
- 12
- Grant note
- P30DK054759 / NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute of Diabetes & Digestive & Kidney Diseases (NIDDK) R831697 / US Environmental Protection Agency; United States Environmental Protection Agency K23HL141651 / NATIONAL HEART, LUNG, AND BLOOD INSTITUTE; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Heart Lung & Blood Institute (NHLBI) R01-HL077612; R01-HL093081; N01-HC95159; N01-HC95160; N01-HC95161; N01-HC95162; N01-HC95163; N01-HC95164; N01-HC95165; N01-HC95169; UL1-TR000040 / NIH/National Heart, Blood, and Lung Institute; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Heart Lung & Blood Institute (NHLBI)
- Language
- English
- Date published
- 06/01/2019
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Radiology; Internal Medicine
- Record Identifier
- 9984318822002771
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