Evidence map›Paper›PMID 32765515›Full record

ArticleFrontiers in immunology2020

Hydroxyurea Scavenges Free Radicals and Induces the Expression of Antioxidant Genes in Human Cell Cultures Treated With Hemin.

Sânzio Silva Santana, Thassila Nogueira Pitanga, Jeanne Machado de Santana, Dalila Lucíola Zanette, Jamile de Jesus Vieira, Sètondji Cocou Modeste Alexandre Yahouédéhou, Corynne Stéphanie Ahouefa Adanho, Sayonara de Melo Viana, Nivea Farias Luz, Valeria Matos Borges and 1 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in immunology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 28 citations in OpenAlex.

  1. Role of miR-155 and miR-103 in Oxidative Stress in Cardiovascular Disease: A Narrative Review.Pathophysiology : the official journal of the International Society for Pathophysiology · 2026
    Review
  2. Review
  3. Article
  4. Arhiv za higijenu rada i toksikologiju · 2025
    Article
  5. Crosstalk Between Sickle Cell Disease and Ferroptosis.International journal of molecular sciences · 2025
    Review
  6. Article
  7. Review
  8. Article
  9. Oxidation of hemoproteins byMicrobiology spectrum · 2024
    Article
  10. Ferroptosis as an emerging target in sickle cell disease.Current research in toxicology · 2024
    Article
  11. Review
  12. Review
  13. Protective effect of heme chloride on hypoxia-induced tissue injury in mice.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2023
    Article
  14. Review
  15. Article
  16. Article
  17. 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

11 authors at 1 institution in 1 country.

Sânzio Silva SantanaInstituto Gonçalo Moniz, Fundação Oswaldo Cruz (IGM/FIOCRUZ-BA), Salvador, Brazil.
Thassila Nogueira PitangaInstituto Gonçalo Moniz, Fundação Oswaldo Cruz (IGM/FIOCRUZ-BA), Salvador, Brazil.
Jeanne Machado de SantanaInstituto Gonçalo Moniz, Fundação Oswaldo Cruz (IGM/FIOCRUZ-BA), Salvador, Brazil.
Dalila Lucíola ZanetteInstituto Gonçalo Moniz, Fundação Oswaldo Cruz (IGM/FIOCRUZ-BA), Salvador, Brazil.
Jamile de Jesus VieiraInstituto Gonçalo Moniz, Fundação Oswaldo Cruz (IGM/FIOCRUZ-BA), Salvador, Brazil.
Sètondji Cocou Modeste Alexandre YahouédéhouInstituto Gonçalo Moniz, Fundação Oswaldo Cruz (IGM/FIOCRUZ-BA), Salvador, Brazil.
Corynne Stéphanie Ahouefa AdanhoInstituto Gonçalo Moniz, Fundação Oswaldo Cruz (IGM/FIOCRUZ-BA), Salvador, Brazil.
Sayonara de Melo VianaInstituto Gonçalo Moniz, Fundação Oswaldo Cruz (IGM/FIOCRUZ-BA), Salvador, Brazil.
Nivea Farias LuzInstituto Gonçalo Moniz, Fundação Oswaldo Cruz (IGM/FIOCRUZ-BA), Salvador, Brazil.
Valeria Matos BorgesInstituto Gonçalo Moniz, Fundação Oswaldo Cruz (IGM/FIOCRUZ-BA), Salvador, Brazil.
Marilda Souza GoncalvesInstituto Gonçalo Moniz, Fundação Oswaldo Cruz (IGM/FIOCRUZ-BA), Salvador, Brazil.
Fundação Oswaldo Cruz · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The excessive release of heme during hemolysis contributes to the severity of sickle cell anemia (SCA) by exacerbating hemoglobin S (HbS) autoxidation, inflammation and systemic tissue damage. The present study investigated the effect of hydroxyurea (HU) on free radical neutralization and its stimulation of antioxidant genes in human peripheral blood mononuclear cells (PBMC) and human umbilical vein endothelial cells (HUVEC) in the presence or absence of hemin. HU (100 and 200 μM) significantly reduced the production of intracellular reactive oxygen species (ROS) induced by hemin at 70 μM in HUVEC. HUVECs treated with HU+hemin presented significant increases in nitric oxide (NO) production in culture supernatants. HU alone or in combination with hemin promoted the induction of superoxide dismutase-1 (

Indexed as

Anemia, Sickle CellAntioxidantsEndothelium, VascularGene Expression RegulationGlutathione PeroxidaseGlutathione Peroxidase GPX1HeminHemoglobin, SickleHumansHuman Umbilical Vein Endothelial CellsHydroxyureaLeukocytes, MononuclearNF-E2-Related Factor 2Nitric OxideReactive Oxygen SpeciesSignal TransductionAntioxidantsGlutathione PeroxidaseGlutathione Peroxidase GPX1GPX1 protein, humanHeminHemoglobin, SickleHydroxyureaNFE2L2 protein, humanNF-E2-Related Factor 2Nitric OxideReactive Oxygen SpeciesSOD1 protein, humanSuperoxide Dismutase-1antioxidant responseheminhydroxyureaNrf2sickle cell anemia

Identifiers

PMID32765515
PMCPMC7380266
OpenAlexW3043203789

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.