Evidence map›Paper›PMID 32345362›Full record

ArticleInfectious diseases of poverty2020

Expression of the SARS-CoV-2 cell receptor gene ACE2 in a wide variety of human tissues.

Meng-Yuan Li, Lin Li, Yue Zhang, Xiao-Sheng Wang

Open access · goldAbstract read
In one paragraph

Article in Infectious diseases of poverty, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 916 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
916citing papers in PubMed, 3 pooled it
36.6field-weighted citation impact, top 1% 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

916 citing papers in PubMed, 3 syntheses or guidelines pooled it, 1,631 citations in OpenAlex.

  1. Pooled it
  2. Pediatric endocrinopathies related to COVID-19: an update.World journal of pediatrics : WJP · 2023
    Pooled it
  3. Pooled it
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  7. Review
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  9. Skin as a Potential Entry Point for SARS-CoV-2 Virus.International journal of molecular sciences · 2026
    Article
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  12. The Effect of COVID-19 on Voice Quality: A Systematic Review.World journal of otorhinolaryngology - head and neck surgery · 2026
    Review
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  15. Article
  16. Article
  17. Article
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  19. Expression ofBiomedical reports · 2025
    Article
  20. Article

856 more citing papers are in PubMed but not listed here.

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

4 authors at 2 institutions in 2 countries.

Meng-Yuan LiBiomedical Informatics Research Lab, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
Lin LiBiomedical Informatics Research Lab, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
Yue ZhangPinghu hospital of Shenzhen University, Shenzhen, 440307, China.
Xiao-Sheng WangBiomedical Informatics Research Lab, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China. xiaosheng.wang@cpu.edu.cn.
China Pharmaceutical University · CNShenzhen University · CN

Funding

China Pharmaceutical University 3150120001
6 · The paper itself

Abstract

backgroundSince its discovery in December 2019, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has infected more than 2 180 000 people worldwide and has caused more than 150 000 deaths as of April 16, 2020. SARS-CoV-2, which is the virus causing coronavirus disease 2019 (COVID-19), uses the angiotensin-converting enzyme 2 (ACE2) as a cell receptor to invade human cells. Thus, ACE2 is the key to understanding the mechanism of SARS-CoV-2 infection. This study is to investigate the ACE2 expression in various human tissues in order to provide insights into the mechanism of SARS-CoV-2 infection.

methodsWe compared ACE2 expression levels across 31 normal human tissues between males and females and between younger (ages ≤ 49 years) and older (ages > 49 years) persons using two-sided Student's t test. We also investigated the correlations between ACE2 expression and immune signatures in various tissues using Pearson's correlation test.

resultsACE2 expression levels were the highest in the small intestine, testis, kidneys, heart, thyroid, and adipose tissue, and were the lowest in the blood, spleen, bone marrow, brain, blood vessels, and muscle. ACE2 showed medium expression levels in the lungs, colon, liver, bladder, and adrenal gland. ACE2 was not differentially expressed between males and females or between younger and older persons in any tissue. In the skin, digestive system, brain, and blood vessels, ACE2 expression levels were positively associated with immune signatures in both males and females. In the thyroid and lungs, ACE2 expression levels were positively and negatively associated with immune signatures in males and females, respectively, and in the lungs they had a positive and a negative correlation in the older and younger groups, respectively.

conclusionsOur data indicate that SARS-CoV-2 may infect other tissues aside from the lungs and infect persons with different sexes, ages, and races equally. The different host immune responses to SARS-CoV-2 infection may partially explain why males and females, young and old persons infected with this virus have markedly distinct disease severity. This study provides new insights into the role of ACE2 in the SARS-CoV-2 pandemic.

Indexed as

BetacoronavirusAdultAgedAge FactorsAngiotensin-Converting Enzyme 2BrainCardiovascular SystemDigestive SystemEndocrine GlandsFemaleGene Expression ProfilingHumansImmune SystemInterferonsLungLymphocytesACE2 protein, humanAngiotensin-Converting Enzyme 2InterferonsPeptidyl-Dipeptidase AReceptors, CoronavirusReceptors, VirusAngiotensin-converting enzyme 2COVID-19Gene expressionImmune signaturesSARS-CoV-2SARS-CoV-2 cell receptorSARS-CoV-2 pandemic

Identifiers

PMID32345362
PMCPMC7186534
OpenAlexW3019773443

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.