Evidence map›Paper›PMID 34394292›Full record

ArticleAfrican health sciences2021

Relationship of oxidative stress and antioxidant response with vaso-occlusive crisis in sickle cell anaemia.

Godwill Azeh Engwa, Amanda Okolie, John Paul Chinedu Chidili, Precious Amara Okore, Paul Chigozie Onu, Maryrose Onyinye Ugwu, Daniella Ebeshe Oko, Paschaline U Ferdinand

Open access · diamondAbstract read
In one paragraph

Article in African health sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 23% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Crosstalk Between Sickle Cell Disease and Ferroptosis.International journal of molecular sciences · 2025
    Review
  3. Article
  4. Article
  5. Ferroptosis as an emerging target in sickle cell disease.Current research in toxicology · 2024
    Article
  6. Review
  7. 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

8 authors at 2 institutions in 2 countries.

Godwill Azeh EngwaBiochemistry, Department of Chemical Sciences, Godfrey Okoye University, P.M.B 01014, Thinkers Corner, Enugu Nigeria.
Amanda OkolieBiochemistry, Department of Chemical Sciences, Godfrey Okoye University, P.M.B 01014, Thinkers Corner, Enugu Nigeria.
John Paul Chinedu ChidiliBiotechnology, Department of Biological Sciences, Godfrey Okoye University, P.M.B 01014, Thinkers Corner, Enugu Nigeria.
Precious Amara OkoreBiochemistry, Department of Chemical Sciences, Godfrey Okoye University, P.M.B 01014, Thinkers Corner, Enugu Nigeria.
Paul Chigozie OnuBiochemistry, Department of Chemical Sciences, Godfrey Okoye University, P.M.B 01014, Thinkers Corner, Enugu Nigeria.
Maryrose Onyinye UgwuBiotechnology, Department of Biological Sciences, Godfrey Okoye University, P.M.B 01014, Thinkers Corner, Enugu Nigeria.
Daniella Ebeshe OkoBiotechnology, Department of Biological Sciences, Godfrey Okoye University, P.M.B 01014, Thinkers Corner, Enugu Nigeria.
Paschaline U FerdinandBio-resources Development Center Arochukwu, National Biotechnology Development Agency (NABDA), Abuja Nigeria.
Godfrey Okoye University · NGNational Primary Health Care Development Agency · NG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThough sickle cell anaemia (SCA) is known to promote oxidative stress, there is paucity of information on the relationship between oxidative stress and vaso-occlusive crisis (VOC).

objectiveThis study was undertaken to evaluate the relationship of oxidative stress and antioxidant response with VOC in SCA.

methodsA cross-sectional case-control study was carried out at University of Nigeria Teaching Hospital (UNTH), Ituku-Ozalla, Enugu Nigeria involving 116 individuals which included 36 SCA subject, 40 sickle cell carriers (AS) and 40 healthy individuals (AA). Baseline information as well as the frequency of VOC was obtained from the participants and anaemia as well as oxidative stress and antioxidant indices were assessed in blood.

resultsAnaemia was prevalent (88.9 %) in SCA individuals compared to AS (52.5%) and AA (47.5 %) individuals. Nitric oxide scavenging (NOS) and superoxide dismutase (SOD) activities as well as glutathione level were significantly (p<0.005) lower while catalase activity was higher in SCA individuals compared to controls (AA and AS). Higher malondialdehyde (MDA) level was associated with very severe VOC while low level of NOS activity was associated with severe VOC in SCA individuals.

conclusionSickle cell anaemia exhibited oxidative stress and alteration in the levels of antioxidant indices which was possibly associated with vaso-occlusive crisis.

Indexed as

AdolescentAdultAgedAnemia, Sickle CellAntioxidantsCase-Control StudiesChildChild, PreschoolCross-Sectional StudiesFemaleHumansInfantInfant, NewbornMaleMiddle AgedNigeriaAntioxidantsantioxidantoxidative stressSickle cell anaemiavaso-occlusive crisis

Identifiers

PMID34394292
PMCPMC8356617
OpenAlexW3153281381

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.