Evidence map›Paper›PMID 31801520›Full record

ReviewRespiratory research2019

Determination of rheology and surface tension of airway surface liquid: a review of clinical relevance and measurement techniques.

Zhenglong Chen, Ming Zhong, Yuzhou Luo, Linhong Deng, Zhaoyan Hu, Yuanlin Song

Open access · goldAbstract readReview
In one paragraph

Review in Respiratory research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

17 citing papers in PubMed, 65 citations in OpenAlex.

  1. Human lungs fluid mechanics: an overview of current modelling techniques.The European physical journal. E, Soft matter · 2026
    Review
  2. Review
  3. The importance of mechanical forces in chronic respiratory diseases.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
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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

6 authors at 4 institutions in 1 country.

Zhenglong ChenSchool of Medical Instrumentation, Shanghai University of Medicine & Health Sciences, 257 Tianxiong Road, Shanghai, 201318, China.
Ming ZhongDepartment of Intensive Care Medicine, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, 200032, China.
Yuzhou LuoSchool of Medical Instrumentation, Shanghai University of Medicine & Health Sciences, 257 Tianxiong Road, Shanghai, 201318, China.
Linhong DengInstitute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou, 213164, Jiangsu, China.
Zhaoyan HuSchool of Medical Instrumentation, Shanghai University of Medicine & Health Sciences, 257 Tianxiong Road, Shanghai, 201318, China. huzy@sumhs.edu.cn.
Yuanlin SongDepartment of Pulmonary Medicine, Zhongshan Hospital Fudan University, 180 Fenglin Road, Xuhui District, Shanghai, 200032, China. ylsong70@163.com.
Shanghai University of Medicine and Health Sciences · CNChangzhou University · CNFudan University · CNZhongshan Hospital · CN

Funding

National Natural Science Foundation of China 11532003National Natural Science Foundation of China 81770075
6 · The paper itself

Abstract

By airway surface liquid, we mean a thin fluid continuum consisting of the airway lining layer and the alveolar lining layer, which not only serves as a protective barrier against foreign particles but also contributes to maintaining normal respiratory mechanics. In recent years, measurements of the rheological properties of airway surface liquid have attracted considerable clinical attention due to new advances in microrheology instruments and methods. This article reviews the clinical relevance of measurements of airway surface liquid viscoelasticity and surface tension from four main aspects: maintaining the stability of the airways and alveoli, preventing ventilator-induced lung injury, optimizing surfactant replacement therapy for respiratory syndrome distress, and characterizing the barrier properties of airway mucus to improve drug and gene delivery. Primary measuring techniques and methods suitable for determining the viscoelasticity and surface tension of airway surface liquid are then introduced with respect to principles, advantages and limitations. Cone and plate viscometers and particle tracking microrheometers are the most commonly used instruments for measuring the bulk viscosity and microviscosity of airway surface liquid, respectively, and pendant drop methods are particularly suitable for the measurement of airway surface liquid surface tension in vitro. Currently, in vivo and in situ measurements of the viscoelasticity and surface tension of the airway surface liquid in humans still presents many challenges.

Indexed as

AnimalsBronchitisChronic DiseaseHumansPulmonary AlveoliPulmonary Disease, Chronic ObstructivePulmonary SurfactantsRespiratory MechanicsRheologySensitivity and SpecificitySurface TensionVentilator-Induced Lung InjuryViscosityPulmonary SurfactantsAirway surface liquidLung surfactantRespiratory diseasesRheologySurface tensionVentilator-induced lung injuryViscosity

Identifiers

PMID31801520
PMCPMC6894196
OpenAlexW2992108073

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.