Evidence map›Paper›PMID 32166377›Full record

Trial reportAnnals of hematology2020

Oxidative stress assessment in sickle cell anemia patients treated with hydroxyurea.

Cristiane O Renó, Amanda Rodrigues Barbosa, Sara Santos de Carvalho, Melina B Pinheiro, Danyelle Romana Rios, Vanessa F Cortes, Leandro A Barbosa, Hérica L Santos

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Annals of hematology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

8 citing papers in PubMed, 14 citations in OpenAlex.

  1. Trial
  2. Article
  3. Redox Potential (EMolecules (Basel, Switzerland) · 2025
    Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Review
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

8 authors at 1 institution in 1 country.

Cristiane O RenóLaboratório de Bioquímica Celular, Universidade Federal de São João del-Rei, Campus Centro-Oeste Dona Lindu, Av Sebastião Gonçalves Coelho 400, Divinópolis, 35501-296, Brazil.
Amanda Rodrigues BarbosaLaboratório de Hematologia Clínica, Universidade Federal de São João del-Rei, Campus Centro-Oeste Dona Lindu, Av Sebastião Gonçalves Coelho 400, Divinópolis, 35501-296, Brazil.
Sara Santos de CarvalhoLaboratório de Hematologia Clínica, Universidade Federal de São João del-Rei, Campus Centro-Oeste Dona Lindu, Av Sebastião Gonçalves Coelho 400, Divinópolis, 35501-296, Brazil.
Melina B PinheiroLaboratório de Análises Clínicas, Universidade Federal de São João del-Rei, Campus Centro-Oeste Dona Lindu, Av Sebastião Gonçalves Coelho 400, Divinópolis, 35501-296, Brazil.
Danyelle Romana RiosLaboratório de Hematologia Clínica, Universidade Federal de São João del-Rei, Campus Centro-Oeste Dona Lindu, Av Sebastião Gonçalves Coelho 400, Divinópolis, 35501-296, Brazil.
Vanessa F CortesLaboratório de Bioquímica Celular, Universidade Federal de São João del-Rei, Campus Centro-Oeste Dona Lindu, Av Sebastião Gonçalves Coelho 400, Divinópolis, 35501-296, Brazil.
Leandro A BarbosaLaboratório de Bioquímica Celular, Universidade Federal de São João del-Rei, Campus Centro-Oeste Dona Lindu, Av Sebastião Gonçalves Coelho 400, Divinópolis, 35501-296, Brazil.
Hérica L SantosLaboratório de Bioquímica Celular, Universidade Federal de São João del-Rei, Campus Centro-Oeste Dona Lindu, Av Sebastião Gonçalves Coelho 400, Divinópolis, 35501-296, Brazil. hlima@ufsj.edu.br.
Federal University of São João del-Rei · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hydroxyurea (HU) is used as a therapy in sickle cell anemia (SCA). Many studies have established that HU improves patient quality of life by reducing symptoms. However, the effect of HU on erythrocytes is not well-described. We evaluated several parameters related to oxidative stress and total lipid content of erythrocytes in patients with SCA. The patient cohort consisted of 7 SCA patients treated with HU, 17 untreated SCA patients, and 15 healthy subjects. Erythrocytes from patients with SCA displayed increased oxidative stress relative to the control group, including higher thiobarbituric acid reactive substances (TBARS), Fe3+ content, and osmotic fragility, and decreased total cholesterol. We observed that treatment of SCA patients with HU increased Fe3+ content and activity of glutathione peroxidase, and decreased glutathione reductase activity, glutathione levels, total cholesterol, and phospholipid content comaperaded to patients untreated with HU. Thus, HU alters biochemical characteristics of erythrocytes; future studies will determine whether they are beneficial or not.

Indexed as

Anemia, Sickle CellAdultCholesterolErythrocytes, AbnormalFemaleHumansHydroxyureaMaleOsmotic FragilityOxidative StressPhospholipidsThiobarbituric Acid Reactive SubstancesCholesterolHydroxyureaPhospholipidsThiobarbituric Acid Reactive SubstancesErythrocyte membraneHydroxyureaOxidative stressSickle cell anemia

Identifiers

PMID32166377
OpenAlexW3010687729

What OpenQuestion holds

Textmetadata
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.