Evidence map›Paper›PMID 36097125›Full record

ArticleMolecular biology reports2022

Genetic modulation of anemia severity, hemolysis level, and hospitalization rate in Angolan children with Sickle Cell Anemia.

Isabel Germano, Brígida Santos, Mariana Delgadinho, Catarina Ginete, Pedro Lopes, Ana Paula Arez, Miguel Brito, Paula Faustino

Abstract read
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In one paragraph

Article in Molecular biology reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 35% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 3 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. 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 4 institutions in 4 countries.

Isabel GermanoInstituto Nacional de Saúde Doutor Ricardo Jorge (INSA), Lisbon, Portugal.
Brígida SantosHospital Pediátrico David Bernardino (HPDB), Luanda, Angola.
Mariana DelgadinhoHealth and Technology Research Center (H&TRC), Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa (ESTeSL/IPL), Lisbon, Portugal.
Catarina GineteHealth and Technology Research Center (H&TRC), Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa (ESTeSL/IPL), Lisbon, Portugal.
Pedro LopesInstituto Nacional de Saúde Doutor Ricardo Jorge (INSA), Lisbon, Portugal.
Ana Paula ArezGlobal Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical (IHMT), Universidade NOVA de Lisboa (UNL), Lisbon, Portugal.
Miguel BritoCentro de Investigação em Saúde de Angola (CISA), Caxito, Angola.
Paula FaustinoInstituto Nacional de Saúde Doutor Ricardo Jorge (INSA), Lisbon, Portugal. paula.faustino@insa.min-saude.pt.ORCID http://orcid.org/0000-0002-6269-4867
Instituto Politécnico de Lisboa · PTNational Institute of Health Dr. Ricardo Jorge · PTClínica Sagrada Esperança · AOUniversity of Lisbon · PT

Funding

Aga Khan Development Network 330842553
6 · The paper itself

Abstract

backgroundSickle Cell Anemia (SCA) is a genetic disease caused by the c.20 A > T mutation in HBB gene, generally characterized by sickle erythrocytes, chronic hemolytic anemia, and vaso-occlusive events. This study aimed to investigate genetic modulators of anemia severity, chronic hemolytic rate, and clinical manifestations in pediatric SCA patients from Angola, where the disease is a severe public health problem. METHODS AND

resultsThe study was conducted on 200 SCA children living in Luanda or Caxito province. Their clinical phenotype was collected from patients' hospital records. Hematological and biochemical phenotypes were characterized in steady state condition. Twelve polymorphic regions in VCAM1, CD36 and NOS3 genes were genotyped using PCR, RFLP, and Sanger sequencing. CD36 gene promoter variants showed a significant impact on anemia severity. Particularly, the rs1413661_C allele was associated with lower hemoglobin levels, and increased number of hospitalizations and transfusions. This is the first report associating this SNP with SCA phenotypic heterogeneity. Moreover, the rs1041163_C allele in VCAM1 was associated with lower LDH levels; inversely the rs2070744_C allele in NOS3 was related with higher LDH levels and number of hospitalizations, being a risk factor for increased hemolytic rate.

conclusionThis study highlights, for the first time in the Angolan population, the importance of the genetic modifiers of vascular cell adhesion and nitric oxide metabolism in SCA pediatric phenotypic variability.

Indexed as

Anemia, Sickle CellHemolysisAllelesErythrocytesHospitalizationHumansAngolaGenetic modifiersHemolytic anemiaSickle cell anemia

Identifiers

PMID36097125
OpenAlexW4295422373

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.