Evidence map›Paper›PMID 34407648›Full record

ArticleCephalalgia : an international journal of headache2022

Activation of the trigeminal system as a likely target of SARS-CoV-2 may contribute to anosmia in COVID-19.

Karl Messlinger, Winfried Neuhuber, Arne May

Open access · hybridAbstract read
In one paragraph

Article in Cephalalgia : an international journal of headache, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 6% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

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  19. Psychological Distress in Patients with Long-lasting COVID-19 Olfactory Dysfunction.Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale
    Article
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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

3 authors at 2 institutions in 1 country.

Karl MesslingerInstitute of Physiology and Pathophysiology, Friedrich-Alexander University, Erlangen-Nuernberg, Germany.ORCID 0000-0002-8099-3860
Winfried NeuhuberInstitute of Anatomy and Cell Biology, Friedrich-Alexander University, Erlangen-Nuernberg, Germany.
Arne MayDepartment of Systems Neuroscience, University Medical Center Eppendorf, Hamburg, Germany.ORCID 0000-0002-3499-1506
Friedrich-Alexander-Universität Erlangen-Nürnberg · DEUniversität Hamburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Clinical publications show consistently that headache is a common symptom in the coronavirus disease of 2019 (COVID-19). Several studies specifically investigated headache symptomatology and associated features in patients with COVID-19. The headache is frequently debilitating with manifold characters including migraine-like characteristics. Studies suggested that COVID-19 patients with headache vs. those without headache are more likely to have anosmia. We present a pathophysiological hypothesis which may explain this phenomenon, discuss current hypotheses about how the coronavirus SARS-CoV-2 enters the central nervous system and suggest that activation of the trigeminal nerve may contribute to both headache and anosmia in COVID-19.

Indexed as

COVID-19Migraine DisordersOlfaction DisordersAnosmiaHeadacheHumansSARS-CoV-2anosmiaCoronavirus diseaseheadacheolfactorytrigeminal

Identifiers

PMID34407648
PMCPMC8793291
OpenAlexW3193349148

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.