Evidence map›Paper›PMID 30081885›Full record

ArticleBMC pulmonary medicine2018

Altered deposition of inhaled nanoparticles in subjects with chronic obstructive pulmonary disease.

Jonas K F Jakobsson, H Laura Aaltonen, Hanna Nicklasson, Anders Gudmundsson, Jenny Rissler, Per Wollmer, Jakob Löndahl

Abstract readMulticenter Study
In one paragraph

Article in BMC pulmonary medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

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  12. MultiscaleCurrent opinion in biomedical engineering · 2019
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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

7 authors.

Jonas K F JakobssonDivision of Ergonomics and Aerosol Technology, Lund University, Lund, Sweden.
H Laura AaltonenDepartment of Translational Medicine, Lund University, Malmö, Sweden.
Hanna NicklassonDepartment of Translational Medicine, Lund University, Malmö, Sweden.
Anders GudmundssonDivision of Ergonomics and Aerosol Technology, Lund University, Lund, Sweden.
Jenny RisslerDivision of Ergonomics and Aerosol Technology, Lund University, Lund, Sweden.
Per WollmerDepartment of Translational Medicine, Lund University, Malmö, Sweden.
Jakob LöndahlDivision of Ergonomics and Aerosol Technology, Lund University, Lund, Sweden. jakob.londahl@design.lth.se.ORCID http://orcid.org/0000-0001-9379-592X

Funding

FORTE (the Swedish Research Council for Health, Working Life and Welfare) 2017-00690The Swedish Heart and Lung Foundation 20170644The Swedish Research Council 2011-3560
6 · The paper itself

Abstract

backgroundRespiratory tract deposition of airborne particles is a key link to understand their health impact. Experimental data are limited for vulnerable groups such as individuals with respiratory diseases. The aim of this study is to investigate the differences in lung deposition of nanoparticles in the distal lung for healthy subjects and subjects with respiratory disease.

methodsLung deposition of nanoparticles (50 and 100 nm) was measured after a 10 s breath-hold for three groups: healthy never-smoking subjects (n = 17), asymptomatic (active and former) smokers (n = 15) and subjects with chronic obstructive pulmonary disease (n = 16). Measurements were made at 1300 mL and 1800 mL volumetric lung depth. Each subject also underwent conventional lung function tests, including post bronchodilator FEV

resultsWe found that the deposition fraction was significantly lower for subjects with emphysema compared to the other subjects (p = 0.001-0.01), but no significant differences were found between healthy never-smokers and smokers. Furthermore, the particle deposition correlated with pulmonary function tests, FEV

conclusionsLower deposition fraction was observed for emphysematous subjects and this can be explained by enlarged distal airspaces in the lungs. As expected, deposition increases for smaller particles and deeper inhalation. The observed results have implications for exposure assessment of air pollution and dosimetry of aerosol-based drug delivery of nanoparticles.

Indexed as

AerosolsAgedCase-Control StudiesFemaleHumansInhalation ExposureMaleMiddle AgedNanoparticlesPulmonary Disease, Chronic ObstructivePulmonary EmphysemaRespiratory Function TestsSmokingSwedenTissue DistributionAerosolsChronic obstructive pulmonary diseaseEmphysemaHumanInhalation exposureIn vivo studyLung depositionNanoparticles

Identifiers

PMID30081885
PMCPMC6080394

What OpenQuestion holds

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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.