Evidence map›Paper›PMID 34182582›Full record

ArticleRevista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia2021

Placental Sampling for Understanding Viral Infections - A Simplified Protocol for the COVID-19 Pandemic.

Guilherme de Moraes Nobrega, José Paulo Siqueira Guida, Rodolfo Rosa Japecanga, Arthur Antolini-Tavares, Indira Mysorekar, Maria Laura Costa

Abstract read
In one paragraph

Article in Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Placentas From SARS-CoV-2 Infection During Pregnancy Exhibit Foci of Oxidative Stress and DNA Damage.American journal of reproductive immunology (New York, N.Y. : 1989) · 2025
    Article
  2. The Placenta and its Underestimated Role in Clinical Practice and Research.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2022
    Article
  3. Article
  4. Article
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

6 authors.

Guilherme de Moraes NobregaUniversidade Estadual de Campinas, Campinas, SP, Brazil.ORCID 0000-0001-9406-4256
José Paulo Siqueira GuidaUniversidade Estadual de Campinas, Campinas, SP, Brazil.ORCID 0000-0002-3648-6159
Rodolfo Rosa JapecangaUniversidade Estadual de Campinas, Campinas, SP, Brazil.ORCID 0000-0002-1611-5174
Arthur Antolini-TavaresUniversidade Estadual de Campinas, Campinas, SP, Brazil.ORCID 0000-0001-5964-4407
Indira MysorekarWashington University School of Medicine, St. Louis, MO, United States of America.ORCID 0000-0003-4539-9257
Maria Laura CostaUniversidade Estadual de Campinas, Campinas, SP, Brazil.ORCID 0000-0001-8280-3234

Funding

Safety, Testing/Transmission, and Outcomes in Pregnancy with COVID-19 (STOP-COVID-19 study)R01HD091218 · NICHD · WASHINGTON UNIVERSITY · PI DIAMOND, MICHAEL S, MYSOREKAR, INDIRA U · 2017 to 2022
$4.1M
NICHD NIH HHS R01 HD091218
6 · The paper itself

Abstract

objectiveThe coronavirus disease 2019 (COVID-19) is a pandemic viral disease, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The impact of the disease among the obstetric population remains unclear, and the study of the placenta can provide valuable information. Adequate sampling of the placental tissue can help characterize the pathways of viral infections.

methodsA protocol of placental sampling is proposed, aiming at guaranteeing representativity of the placenta and describing the adequate conservation of samples and their integrity for future analysis. The protocol is presented in its complete and simplified versions, allowing its implementation in different complexity settings.

resultsSampling with the minimum possible interval from childbirth is the key for adequate sampling and storage. This protocol has already been implemented during the Zika virus outbreak.

conclusionA protocol for adequate sampling and storage of placental tissue is fundamental for adequate evaluation of viral infections on the placenta. During the COVID-19 pandemic, implementation of this protocol may help to elucidate critical aspects of the SARS-CoV-2 infection.

Indexed as

COVID-19FemaleHumansPlacentaPregnancySpecimen HandlingVirologyVirus Diseases

Identifiers

PMID34182582
PMCPMC10305292

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.