Evidence map›Paper›PMID 32590326›Full record

ArticleMedical hypotheses2020

Pulmonary surfactant itself must be a strong defender against SARS-CoV-2.

Hideyuki Takano

Open access · greenAbstract read
In one paragraph

Article in Medical hypotheses, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
5.1field-weighted citation impact, top 3% 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

19 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
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  10. Imaging of COVID-19: An update of current evidences.Diagnostic and interventional imaging · 2021
    Review
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  12. Article
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  17. Classification of the present pharmaceutical agents based on the possible effective mechanism on the COVID-19 infection.Daru : journal of Faculty of Pharmacy, Tehran University of Medical Sciences · 2020
    Review
  18. Article
  19. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

1 author at 1 institution in 1 country.

Hideyuki TakanoChiba Cancer Center, 666-2 Nitonacho, Chuouku, Chiba City, Chiba 260-8717, Japan. Electronic address: htakano@chiba-cc.jp.
Chiba Cancer Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pulmonary surfactant is considered to be one of the soaps. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the other enveloped viruses become very weak against surfactant. The SARS virus binds to angiotensin-converting enzyme (ACE2) receptor and causes pneumonia. In the lung, the ACE2 receptor sits on the top of lung cells known as alveolar epithelial type II (AE2) cells. These cells play an important role in producing surfactant. Pulmonary surfactant is believed to regulate the alveolar surface tension in mammalian lungs. To our knowledge, AE2 cells are believed to act as immunoregulatory cells; however, pulmonary surfactant itself has not been believed to act as a defender against the enveloped viruses. This study hypothesises that pulmonary surfactant may be a strong defender of enveloped viruses. Therefore, old coronaviruses merely cause pneumonia. On the contrary, new SARS-CoV-2 can suppress the production of surfactant that binds to the ACE2 of AE2 cells. The coronavirus can survive in the lung tissue because of the exhaustion of pulmonary surfactant.

Indexed as

SARS-CoV-2AmbroxolAngiotensin-Converting Enzyme 2BromhexineClinical Trials as TopicCOVID-19COVID-19 Drug TreatmentCrystallography, X-RayHumansModels, TheoreticalPhagocytosisPneumonia, ViralPregnenedionesPulmonary AlveoliPulmonary SurfactantsSurface-Active AgentsACE2 protein, humanAmbroxolAngiotensin-Converting Enzyme 2BromhexineciclesonidePregnenedionesPulmonary SurfactantsSurface-Active AgentsACE2Alveolar epithelial type II cellPulmonary surfactantSARS-CoV-2

Identifiers

PMID32590326
PMCPMC7833517
OpenAlexW3036679926

What OpenQuestion 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 OpenQuestion graph.