Evidence map›Paper›PMID 32140892›Full record

Trial reportAnnals of hematology2020

High levels of proinflammatory cytokines IL-6 and IL-8 are associated with a poor clinical outcome in sickle cell anemia.

Igor F Domingos, Diego A Pereira-Martins, Marcondes J V C Sobreira, Romulo T D Oliveira, Adekunle E Alagbe, Carolina Lanaro, Dulcineia M Albuquerque, Maria H S L Blotta, Aderson S Araujo, Fernando F Costa and 4 more

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 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.2field-weighted citation impact, top 7% 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

28 citing papers in PubMed, 48 citations in OpenAlex.

  1. Trial
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  9. Phytochemical Characterization ofMolecules (Basel, Switzerland) · 2025
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  11. Anti-inflammatory effects of kawakawa (Food science & nutrition · 2024
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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

14 authors at 3 institutions in 1 country.

Igor F DomingosGenetics Postgraduate Program, Federal University of Pernambuco, Recife, Brazil.
Diego A Pereira-MartinsGenetics Postgraduate Program, Federal University of Pernambuco, Recife, Brazil.
Marcondes J V C SobreiraGenetics Postgraduate Program, Federal University of Pernambuco, Recife, Brazil.
Romulo T D OliveiraDepartment of Clinical Pathology, School of Medical Sciences, State University of Campinas - UNICAMP, Campinas, São Paulo, Brazil.
Adekunle E AlagbeDepartment of Clinical Pathology, School of Medical Sciences, State University of Campinas - UNICAMP, Campinas, São Paulo, Brazil.
Carolina LanaroHematology and Hemotherapy Center, State University of Campinas - UNICAMP, Campinas, São Paulo, Brazil.
Dulcineia M AlbuquerqueHematology and Hemotherapy Center, State University of Campinas - UNICAMP, Campinas, São Paulo, Brazil.
Maria H S L BlottaDepartment of Clinical Pathology, School of Medical Sciences, State University of Campinas - UNICAMP, Campinas, São Paulo, Brazil.
Aderson S AraujoDepartment of Internal Medicine, Hematology and Hemotherapy Foundation of Pernambuco, Recife, Brazil.
Fernando F CostaHematology and Hemotherapy Center, State University of Campinas - UNICAMP, Campinas, São Paulo, Brazil.
Antonio R Lucena-AraujoGenetics Postgraduate Program, Federal University of Pernambuco, Recife, Brazil.
Maria F SonatiDepartment of Clinical Pathology, School of Medical Sciences, State University of Campinas - UNICAMP, Campinas, São Paulo, Brazil.
Marcos A C BezerraGenetics Postgraduate Program, Federal University of Pernambuco, Recife, Brazil.
Magnun N N SantosDepartment of Clinical Pathology, School of Medical Sciences, State University of Campinas - UNICAMP, Campinas, São Paulo, Brazil. magnun.nunes@gmail.com.
Universidade Estadual de Campinas (UNICAMP) · BRUniversidade Federal de Pernambuco · BRFundação Hemopa · BR

Funding

Fundação de Amparo à Pesquisa do Estado de São Paulo 2014/00984-3
6 · The paper itself

Abstract

Sickle cell anemia (SCA) pathophysiology is characterized by the activation of sickle red blood cells, reticulocytes, leukocytes, platelets, and endothelial cells, and with the expression of several inflammatory molecules. Therefore, it is conceivable that variations in levels of proinflammatory cytokines may act as a signaling of differential clinical course in SCA. Here, we evaluated the clinical impact of proinflammatory cytokines interleukin 1-β (IL-1β), interleukin 6 (IL-6), and interleukin 8 (IL-8) in 79 patients with SCA, followed in a single reference center from northeastern Brazil. The main clinical/laboratory data were obtained from patient interview and medical records. The proinflammatory markers IL-1β, IL-6, and IL-8 were evaluated by using commercially available enzyme-linked immunosorbent assay kits. According to levels of the proinflammatory markers, we observed that patients who had a higher frequency of VOC per year (P = 0.0236), acute chest syndrome (P = 0.01), leg ulcers (P = 0.0001), osteonecrosis (P = 0.0006), stroke (P = 0.0486), and priapism (P = 0.0347) had higher IL-6 levels compared with patients without these clinical complications. Furthermore, increased levels of IL-8 were found in patients who presented leg ulcers (P = 0.0184). No significant difference was found for IL-1β levels (P > 0.05). In summary, the present study emphasizes the role of inflammation in SCA pathophysiology, reveals an association of IL-8 levels and leg ulcer occurrence, and indicates that IL-6 levels can be used as a useful predictor for poor outcomes in SCA.

Indexed as

AdultAnemia, Sickle CellBrazilEnzyme-Linked Immunosorbent AssayFemaleFollow-Up StudiesHumansInterleukin-1betaInterleukin-6Interleukin-8Leg UlcerMaleMiddle AgedCXCL8 protein, humanIL1B protein, humanIL6 protein, humanInterleukin-1betaInterleukin-6Interleukin-8Clinical complicationsLeg ulcersProinflammatory cytokinesSickle cell anemia

Identifiers

PMID32140892
OpenAlexW3009153106

What OpenQuestion holds

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Registered trials

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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.