Evidence map›Paper›PMID 32818265›Full record

ArticleToxicological sciences : an official journal of the Society of Toxicology2020

Small Airway Wall Thickening Assessed by Computerized Tomography Is Associated With Low Lung Function in Chinese Carbon Black Packers.

Xue Cao, Li Lin, Akshay Sood, Qianli Ma, Xiangyun Zhang, Yuansheng Liu, Hong Liu, Yanting Li, Tao Wang, Jinglong Tang and 7 more

Open access · greenAbstract read
In one paragraph

Article in Toxicological sciences : an official journal of the Society of Toxicology, 2020. 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
1.8field-weighted citation impact, top 12% 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

13 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Effects of remote ischemic preconditioning and/or erythropoietin on lung injury induced by skeletal ischemia reperfusion: role of the NLRP3 inflammasome.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025
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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

17 authors at 8 institutions in 3 countries.

Xue CaoDepartment of Occupational and Environmental Health, School of Public Health.
Li LinDepartment of Respiratory and Critical Care Medicine, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao 266021, China.
Akshay SoodDepartment of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico 87131.
Qianli MaDepartment of Respiratory and Critical Care Medicine, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao 266021, China.
Xiangyun ZhangState Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment and Resources, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
Yuansheng LiuDepartment of Occupational and Environmental Health, School of Public Health.
Hong LiuDepartment of Respiratory and Critical Care Medicine, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao 266021, China.
Yanting LiDepartment of Occupational and Environmental Health, School of Public Health.
Tao WangDepartment of Occupational and Environmental Health, School of Public Health.
Jinglong TangDepartment of Occupational and Environmental Health, School of Public Health.
Menghui JiangDepartment of Occupational and Environmental Health, School of Public Health.
Rong ZhangDepartment of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, China.
Shanfa YuHenan Institute of Occupational Medicine, Zhengzhou, Henan 450052, China.
Zhiqiang YuState Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment and Resources, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
Yuxin ZhengDepartment of Occupational and Environmental Health, School of Public Health.
Wei HanDepartment of Respiratory and Critical Care Medicine, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao 266021, China.
Shuguang LengDepartment of Occupational and Environmental Health, School of Public Health.
University of Occupational and Environmental Health Japan · JPQingdao University · CNChinese Academy of Sciences · CNHebei Medical University · CNHenan Provincial Institute of Occupational Health · CNQingdao Municipal Hospital · CNUniversity of New Mexico · USUNM Comprehensive Cancer Center

Funding

WOMEN'S CANCERS RESEARCH PROGRAMP30CA118100 · NCI · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI Yolanda Sanchez · 2005 to 2026
$57.1M
NCI NIH HHS P30 CA118100
6 · The paper itself

Abstract

Nanoscale carbon black as virtually pure elemental carbon can deposit deep in the lungs and cause pulmonary injury. Airway remodeling assessed using computed tomography (CT) correlates well with spirometry in patients with obstructive lung diseases. Structural airway changes caused by carbon black exposure remain unknown. Wall and lumen areas of sixth and ninth generations of airways in 4 lobes were quantified using end-inhalation CT scans in 58 current carbon black packers (CBPs) and 95 non-CBPs. Carbon content in airway macrophage (CCAM) in sputum was quantified to assess the dose-response. Environmental monitoring and CCAM showed a much higher level of elemental carbon exposure in CBPs, which was associated with higher wall area and lower lumen area with no change in total airway area for either airway generation. This suggested small airway wall thickening is a major feature of airway remodeling in CBPs. When compared with wall or lumen areas, wall area percent (WA%) was not affected by subject characteristics or lobar location and had greater measurement reproducibility. The effect of carbon black exposure status on WA% did not differ by lobes. CCAM was associated with WA% in a dose-dependent manner. CBPs had lower FEV1 (forced expiratory volume in 1 s) than non-CBPs and mediation analysis identified that a large portion (41-72%) of the FEV1 reduction associated with carbon black exposure could be explained by WA%. Small airway wall thickening as a major imaging change detected by CT may underlie the pathology of lung function impairment caused by carbon black exposure.

Indexed as

SootChinaHumansLungOccupational ExposurePulmonary Disease, Chronic ObstructiveReproducibility of ResultsRespiratory Function TestsTomography, X-Ray ComputedSootairway wall thickeningcarbon blackcarbon content in airway macrophagedose-responsemediation effect

Identifiers

PMID32818265
PMCPMC7825005
OpenAlexW3081341692

What Socratic holds

Textmetadata
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 Socratic graph.