Evidence map›Paper›PMID 27838552›Full record

ArticleBlood cells, molecules & diseases2016

The role of BCL11A and HMIP-2 polymorphisms on endogenous and hydroxyurea induced levels of fetal hemoglobin in sickle cell anemia patients from southern Brazil.

João Ricardo Friedrisch, Vivien Sheehan, Jonathan M Flanagan, Alessandro Baldan, Carly C Ginter Summarell, Christina Matzembacher Bittar, Bruno Kras Friedrisch, Ianaê Indiara Wilke, Camila Blos Ribeiro, Liane Esteves Daudt and 1 more

Abstract read
In one paragraph

Article in Blood cells, molecules & diseases, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 15% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Hydroxyurea reduces the levels of the fetalJournal of sickle cell disease · 2024
    Article
  7. Article
  8. Single Nucleotide Polymorphisms inDiagnostics (Basel, Switzerland) · 2022
    Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Fetal haemoglobin induction in sickle cell disease.British journal of haematology · 2018
    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

11 authors at 4 institutions in 3 countries.

João Ricardo FriedrischMedical Sciences, Universidade Federal do Rio Grande do Sul (UFGRS); Hematology and Bone Marrow Transplantation Service of the Hospital de Clínicas de Porto Alegre (HCPA). Electronic address: drjrf@terra.com.br.
Vivien SheehanTexas Children's Hematology Center, Baylor College of Medicine, Department of Pediatrics, Houston, TX, USA. Electronic address: vsheehan@bcm.edu.
Jonathan M FlanaganTexas Children's Hematology Center, Baylor College of Medicine, Department of Pediatrics, Houston, TX, USA. Electronic address: jmflanag@txch.edu.
Alessandro BaldanTexas Children's Hematology Center, Baylor College of Medicine, Department of Pediatrics, Houston, TX, USA. Electronic address: alessandro.baldan@bcm.edu.
Carly C Ginter SummarellTexas Children's Hematology Center, Baylor College of Medicine, Department of Pediatrics, Houston, TX, USA. Electronic address: carly.summarell@bcm.edu.
Christina Matzembacher BittarHematology and Bone Marrow Transplantation Service of the Hospital de Clínicas de Porto Alegre (HCPA). Electronic address: cbittar@hcpa.edu.br.
Bruno Kras FriedrischUniversidade de Santa Cruz do Sul (UNISC), Santa Cruz do Sul, RS, Brazil. Electronic address: brunokf@gmail.com.
Ianaê Indiara WilkeHematology and Bone Marrow Transplantation Service of the Hospital de Clínicas de Porto Alegre (HCPA). Electronic address: ianaewilke@bol.com.br.
Camila Blos RibeiroHematology and Bone Marrow Transplantation Service of the Hospital de Clínicas de Porto Alegre (HCPA). Electronic address: camilablosribeiro@gmail.com.
Liane Esteves DaudtHematology and Bone Marrow Transplantation Service of the Hospital de Clínicas de Porto Alegre (HCPA). Electronic address: ldaudt@hcpa.edu.br.
Lucia Mariano da Rocha SillaHematology and Bone Marrow Transplantation Service of the Hospital de Clínicas de Porto Alegre (HCPA); Medical Sciences, UFGRS, Santa Cruz do Sul, RS, Brazil. Electronic address: lsilla@hcpa.edu.br.
Baylor College of Medicine · USHospital de Clínicas de Porto Alegre · BRUniversidade de Santa Cruz do Sul · BRUniversidade Federal do Rio Grande do Sul · BR

Funding

A Genomics Approach to Gamma-Globin RegulationK08DK110448 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI SHEEHAN, VIVIEN ANDREA · 2016 to 2019
$616k
NIDDK NIH HHS K08 DK110448
6 · The paper itself

Abstract

High levels of fetal hemoglobin (HbF) reduce sickle cell anemia (SCA) morbidity and mortality. HbF levels vary considerably and there is a strong genetic component that influences HbF production. Genetic polymorphisms at three quantitative trait loci (QTL): Xmn1-HBG2, HMIP-2 and BCL11A, have been shown to influence HbF levels and disease severity in SCA. Hydroxyurea (HU) is a drug that increases HbF. We investigated the influence of single nucleotide polymorphisms (SNPs) at the Xmn1-HBG2 (rs7482144); BCL11A (rs1427407, rs4671393 and rs11886868); and HMIP-2 (rs9399137 and rs9402686) loci on baseline and HU-induced HbF levels in 111 HbSS patients. We found that both BCL11A and HMIP-2 were associated with increased endogenous levels of HbF. Interestingly, we also found that BCL11A was associated with higher induction of HbF with HU. This effect was independent of the effect of BCL11A on baseline HbF levels. Additional studies will be needed to validate these findings and explain the ample inter-individual variations in HbF levels at baseline and HU-induced in patients with SCA.

Indexed as

AdolescentAdultAnemia, Sickle CellBrazilCarrier ProteinsChildChild, PreschoolFemaleFetal HemoglobinHumansHydroxyureaMaleMetalloendopeptidasesMiddle AgedNuclear ProteinsPolymorphism, Single NucleotideBCL11A protein, humanCarrier ProteinsFetal HemoglobinHydroxyureaMetalloendopeptidasesmitochondrial intermediate peptidaseNuclear ProteinsRepressor ProteinsBCL11AHMIP-2Sickle cell anemiaSingle nucleotide polymorphism

Identifiers

PMID27838552
PMCPMC5972079
OpenAlexW2554821263

What OpenQuestion holds

Textmetadata
LicenceTDM
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.