Evidence map›Paper›PMID 32935110›Full record

ArticlemedRxiv : the preprint server for health sciences2021

Biochemical and Biophysical Characterization of Respiratory Secretions in Severe SARS-CoV-2 (COVID-19) Infections.

Michael J Kratochvil, Gernot Kaber, Pamela C Cai, Elizabeth B Burgener, Graham L Barlow, Mark R Nicolls, Michael G Ozawa, Donald P Regula, Ana E Pacheco-Navarro, Carlos E Milla and 7 more

Open access · greenAbstract readPreprint
In one paragraph

Article in medRxiv : the preprint server for health sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed, 17 citations in OpenAlex.

  1. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors at 1 institution in 1 country.

Michael J Kratochvil
Gernot Kaber
Pamela C Cai
Elizabeth B Burgener
Graham L Barlow
Mark R Nicolls
Michael G Ozawa
Donald P Regula
Ana E Pacheco-Navarro
Carlos E Milla
Nadine Nagy
Samuel Yang
Stanford COVID-19 Biobank Study Group
Angela J Rogers
Andrew J Spakowitz
Sarah C Heilshorn
Paul L Bollyky
Stanford University · US

Funding

Endothelial Injury, BMPR2 Dysfunction and Macrophage Activation Cause EndMT and PAHR01HL138473 · NHLBI · STANFORD UNIVERSITY · PI Mark Robert Nicolls, Marlene Rabinovitch · 2017 to 2026
$4.9M
Critical Role for Microvasculature in Airway TransplantationR01HL095686 · NHLBI · PALO ALTO VETERANS INSTIT FOR RESEARCH · PI NICOLLS, MARK ROBERT · 2010 to 2022
$4.7M
Stanford Training Program in Lung BiologyT32HL129970 · NHLBI · STANFORD UNIVERSITY · PI CORNFIELD, DAVID N., NICOLLS, MARK ROBERT · 2016 to 2025
$3.2M
Regulatory T Cells and Pulmonary HypertensionR01HL158714 · NHLBI · PALO ALTO VETERANS INSTIT FOR RESEARCH · PI NICOLLS, MARK ROBERT · 2021 to 2024
$2.5M
A Critical Role for Leukotriene B4 in LymphedemaR01HL141105 · NHLBI · PALO ALTO VETERANS INSTIT FOR RESEARCH · PI NICOLLS, MARK ROBERT · 2019 to 2022
$2.3M
NHLBI NIH HHS R01 HL095686NHLBI NIH HHS R01 HL141105NHLBI NIH HHS R01 HL158714NHLBI NIH HHS T32 HL129970
6 · The paper itself

Abstract

Thick, viscous respiratory secretions are a major pathogenic feature of COVID-19 disease, but the composition and physical properties of these secretions are poorly understood. We characterized the composition and rheological properties (i.e. resistance to flow) of respiratory secretions collected from intubated COVID-19 patients. We found the percent solids and protein content are all greatly elevated in COVID-19 compared to heathy control samples and closely resemble levels seen in cystic fibrosis (CF), a genetic disease known for thick, tenacious respiratory secretions. DNA and hyaluronan are major components of respiratory secretions in COVID-19 and are likewise abundant in cadaveric lung tissues from these patients. COVID-19 secretions exhibited heterogeneous rheological behaviors with thicker samples showing increased sensitivity to DNase and hyaluronidase treatment. These results highlight the dramatic biophysical properties of COVID-19 respiratory secretions and suggest that DNA and hyaluronan may be viable therapeutic targets in COVID-19 infection.

Identifiers

PMID32935110
PMCPMC7491514
OpenAlexW3084689436

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.