Evidence map›Paper›PMID 35721551›Full record

ArticleFrontiers in physiology2022

SARS-CoV-2 Nucleocapsid Protein is Associated With Lower Testosterone Levels: An Experimental Study.

Caio Henrique Lucio Carrasco, Paloma Noda, Ana Paula Barbosa, Everidiene Kinverlly Vieira Borges da Silva, Camila Gasque Bomfim, Bianca Helena Ventura Fernandes, Thiago Afonso Teixeira, Amaro Nunes Duarte Neto, Paulo Hilario Nascimento Saldiva, Kamal Achoa Filho and 7 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 16% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Urological complications of COVID-19: a systematic review.International braz j urol : official journal of the Brazilian Society of Urology
    Pooled it
  2. Review
  3. Review
  4. Effect of SARS-CoV-2 infection on sperm telomere length.Journal of assisted reproduction and genetics · 2025
    Article
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  6. Review
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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

17 authors at 4 institutions in 2 countries.

Caio Henrique Lucio CarrascoAndroscience-Science and Innovation Center in Andrology and High-Complex Clinical and Research Andrology Laboratory, Sao Paulo, Brazil.
Paloma NodaRenal Division, Department of Clinical Medicine, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.
Ana Paula BarbosaDepartment of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
Everidiene Kinverlly Vieira Borges da SilvaRenal Division, Department of Clinical Medicine, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.
Camila Gasque BomfimDepartment of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
Bianca Helena Ventura FernandesDepartment of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
Thiago Afonso TeixeiraAndroscience-Science and Innovation Center in Andrology and High-Complex Clinical and Research Andrology Laboratory, Sao Paulo, Brazil.
Amaro Nunes Duarte NetoReproductive Toxicology Unit, Department of Pathology, University of Sao Paulo Medical School, São Paulo, Brazil.
Paulo Hilario Nascimento SaldivaReproductive Toxicology Unit, Department of Pathology, University of Sao Paulo Medical School, São Paulo, Brazil.
Kamal Achoa FilhoRenal Division, Department of Clinical Medicine, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.
Cristiane Rodrigues GuzzoDepartment of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
Edison Luiz DurigonDepartment of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
Fernando Luiz Affonso FonsecaDepartment of Clinical Laboratory, University Center of ABC Medical School, Santo Andre, Brazil.
Roseli CorazziniDepartment of Clinical Laboratory, University Center of ABC Medical School, Santo Andre, Brazil.
Camilla FanelliRenal Division, Department of Clinical Medicine, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.
Irene Lourdes NoronhaRenal Division, Department of Clinical Medicine, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.
Jorge HallakAndroscience-Science and Innovation Center in Andrology and High-Complex Clinical and Research Andrology Laboratory, Sao Paulo, Brazil.
Universidade de São Paulo · BRFaculdade de Medicina do ABC · BRAndroScience (United States) · USInstituto de Estudos Avançados da Universidade de São Paulo

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ongoing COVID-19 pandemic represents an extra burden in the majority of public and private health systems worldwide beyond the most pessimistic expectations, driving an urgent rush to develop effective vaccines and effective medical treatments against the SARS-CoV-2 pandemic. The Nucleocapsid structural viral protein is remarkably immunogenic and hugely expressed during infection. High IgG antibodies against Nucleocapsid protein (N protein) levels were detected in the serum of COVID-19 patients, confirming its pivotal antigen role for a T lymphocyte response in a vaccine microenvironment. Currently, adverse events associated with immunizations have raised some degree of concern, irrespective of its huge benefits in dealing with disease severity and decreasing mortality and morbidity. This hitherto study evaluates histological changes in rats' testes, epididymis, prostate, and seminal vesicles and analyzes hormone levels after solely N protein inoculation. Therefore, we exposed a group of Lewis rats to weekly injections of the recombinant N protein for 28 days, while a control group was inoculated with a buffer solution. The N group revealed a more significant number of spermatozoa. Spermatozoa in the seminiferous tubules were counted in twenty 400 × microscopy fields (mean of 9.2 vs. 4.6 in the control group;

Indexed as

COVID-19hypogonadismnucleocapsidSARS-CoV-2testistestosterone

Identifiers

PMID35721551
PMCPMC9204174
OpenAlexW4281715243

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.