Evidence map›Paper›PMID 33168188›Full record

ArticleBiochemical and biophysical research communications2021

Obesity alters Ace2 and Tmprss2 expression in lung, trachea, and esophagus in a sex-dependent manner: Implications for COVID-19.

Dylan C Sarver, G William Wong

Open access · greenAbstract read
In one paragraph

Article in Biochemical and biophysical research communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.0field-weighted citation impact, top 13% 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

25 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Expression ofBiomedical reports · 2025
    Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. COVID-19, Obesity, and GRP78: Unraveling the Pathological Link.Journal of obesity & metabolic syndrome · 2023
    Review
  8. Review
  9. COVID-19 Biogenesis and Intracellular Transport.International journal of molecular sciences · 2023
    Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Editorial: Obesity, metabolic phenotypes and COVID-19.Metabolism: clinical and experimental · 2022
    Article
  18. Article
  19. Article
  20. The Impact ofMicroorganisms · 2021
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Dylan C SarverDepartment of Physiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Metabolism and Obesity Research, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
G William WongDepartment of Physiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Metabolism and Obesity Research, Johns Hopkins University School of Medicine, Baltimore, MD, USA. Electronic address: gwwong@jhmi.edu.
Johns Hopkins University · US

Funding

CTRP and Metabolic ControlR01DK084171 · NIDDK · JOHNS HOPKINS UNIVERSITY · PI Guang William Wong · 2010 to 2026
$8.0M
NIDDK NIH HHS R01 DK084171
6 · The paper itself

Abstract

Obesity is a major risk factor for SARS-CoV-2 infection and COVID-19 severity. The underlying basis of this association is likely complex in nature. The host-cell receptor angiotensin converting enzyme 2 (ACE2) and the type II transmembrane serine protease (TMPRSS2) are important for viral cell entry. It is unclear whether obesity alters expression of Ace2 and Tmprss2 in the lower respiratory tract. Here, we show that: 1) Ace2 expression is elevated in the lung and trachea of diet-induced obese male mice and reduced in the esophagus of obese female mice relative to lean controls; 2) Tmprss2 expression is increased in the trachea of obese male mice but reduced in the lung and elevated in the trachea of obese female mice relative to lean controls; 3) in chow-fed lean mice, females have higher expression of Ace2 in the lung and esophagus as well as higher Tmprss2 expression in the lung but lower expression in the trachea compared to males; and 4) in diet-induced obese mice, males have higher expression of Ace2 in the trachea and higher expression of Tmprss2 in the lung compared to females, whereas females have higher expression of Tmprss2 in the trachea relative to males. Our data indicate diet- and sex-dependent modulation of Ace2 and Tmprss2 expression in the lower respiratory tract and esophagus. Given the high prevalence of obesity worldwide and a sex-biased mortality rate, we discuss the implications and relevance of our results for COVID-19.

Indexed as

Virus InternalizationAngiotensin-Converting Enzyme 2AnimalsCOVID-19DietEsophagusFemaleLungMaleMiceObesitySARS-CoV-2Serine EndopeptidasesSex FactorsTracheaAngiotensin-Converting Enzyme 2Serine EndopeptidasesTMPRSS2 protein, mouse

Identifiers

PMID33168188
PMCPMC7605802
OpenAlexW3096254170

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.