Evidence map›Paper›PMID 32410003›Full record

ReviewIndian journal of pediatrics2020

Pathophysiology of COVID-19: Why Children Fare Better than Adults?

Nitin Dhochak, Tanu Singhal, S K Kabra, Rakesh Lodha

Registry-linked trialOpen access · bronzeAbstract readReview
In one paragraph

Review in Indian journal of pediatrics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05576714 (Investigation of Prognostic Biomarkers, Host Factors and Viral Factors for COVID-19 Associated Encephalopathy/Encephalitis and Multi-systemic Inflammatory Syndrome in Children), which is not on this map. Cited by 166 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
166citing papers in PubMed, 2 pooled it
24.2field-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.

NCT05576714 unknown statusnot on this mapstarted 2022, after this paper: background citation

Investigation of Prognostic Biomarkers, Host Factors and Viral Factors for COVID-19 Associated Encephalopathy/Encephalitis and Multi-systemic Inflammatory Syndrome in Children

Typeobservational_patient_registrySponsorNational Taiwan University HospitalRan2022 to 2025Enrolled300ConditionsCOVID-19-Associated Encephalitis, Multisystem Inflammatory Syndrome in ChildrenArmsdelineate its prognostic biomarker, host genetic factors, immunopathogenesis and viral pathogenesis
3 · Its place in the literature

Who cites it

166 citing papers in PubMed, 2 syntheses or guidelines pooled it, 342 citations in OpenAlex.

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  5. Clinical Characteristics and Cytokines of Children With Lower Respiratory Tract Infection Caused by Influenza A After COVID-19.The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2026
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106 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 1 country.

Nitin DhochakDepartment of Pediatrics, All India Institute of Medical Sciences, New Delhi, India.
Tanu SinghalDepartment of Pediatrics, Kokilaben Dhirubhai Ambani Hospital and Medical Research Institute, Mumbai, India.
S K KabraDepartment of Pediatrics, All India Institute of Medical Sciences, New Delhi, India.
Rakesh LodhaDepartment of Pediatrics, All India Institute of Medical Sciences, New Delhi, India. rlodha1661@gmail.com.
All India Institute of Medical Sciences · INKokilaben Dhirubhai Ambani Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The world is facing Coronavirus Disease-2019 (COVID-19) pandemic, which is causing a large number of deaths and burden on intensive care facilities. It is caused by Severe Acute Respiratory Syndrome coronavirus-2 (SARS-CoV-2) originating in Wuhan, China. It has been seen that fewer children contract COVID-19 and among infected, children have less severe disease. Insights in pathophysiological mechanisms of less severity in children could be important for devising therapeutics for high-risk adults and elderly. Early closing of schools and day-care centers led to less frequent exposure and hence, lower infection rate in children. The expression of primary target receptor for SARS-CoV-2, i.e. angiotensin converting enzyme-2 (ACE-2), decreases with age. ACE-2 has lung protective effects by limiting angiotensin-2 mediated pulmonary capillary leak and inflammation. Severe COVID-19 disease is associated with high and persistent viral loads in adults. Children have strong innate immune response due to trained immunity (secondary to live-vaccines and frequent viral infections), leading to probably early control of infection at the site of entry. Adult patients show suppressed adaptive immunity and dysfunctional over-active innate immune response in severe infections, which is not seen in children. These could be related to immune-senescence in elderly. Excellent regeneration capacity of pediatric alveolar epithelium may be contributing to early recovery from COVID-19. Children, less frequently, have risk factors such as co-morbidities, smoking, and obesity. But young infants and children with pre-existing illnesses could be high risk groups and need careful monitoring. Studies describing immune-pathogenesis in COVID-19 are lacking in children and need urgent attention.

Indexed as

Age FactorsAdaptive ImmunityAdultAngiotensin-Converting Enzyme 2BetacoronavirusChildChinaCoronavirus InfectionsCOVID-19Disease SusceptibilityHumansInfluenza, HumanMiddle East Respiratory Syndrome CoronavirusPandemicsPeptidyl-Dipeptidase APneumonia, ViralACE2 protein, humanAngiotensin-Converting Enzyme 2Peptidyl-Dipeptidase AACE-2Adaptive immunityInnate immunityPathogenesisSARS-CoV2

Identifiers

PMID32410003
PMCPMC7221011
OpenAlexW3025210114

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.