Evidence map›Paper›PMID 28567595›Full record

ArticleMolecular diagnosis & therapy2017

Do Alpha Thalassemia, Fetal Hemoglobin, and the UGT1A1 Polymorphism have an Influence on Serum Bilirubin Levels and Cholelithiasis in Patients with Sickle Cell Disease?

Laura Alencastro de Azevedo, Joyce Bonazzoni, Sandrine Comparsi Wagner, Mariela Granero Farias, Christina M Bittar, Liane Daudt, Simone Martins de Castro

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular diagnosis & therapy, 2017. 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
–field-weighted citation impact, top 93% 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, 4 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Correlates of gallbladder stones among patients with sickle cell disease: A meta-analysis.JGH open : an open access journal of gastroenterology and hepatology · 2021
    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

7 authors at 3 institutions in 1 country.

Laura Alencastro de AzevedoFaculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil.
Joyce BonazzoniFaculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil.
Sandrine Comparsi WagnerUniversidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil.
Mariela Granero FariasHospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
Christina M BittarHospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
Liane DaudtHospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
Simone Martins de CastroFaculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil. simonecastro13@gmail.com.
Hospital de Clínicas de Porto Alegre · BRUniversidade Federal do Rio Grande do Sul · BRUniversidade Federal de Ciências da Saúde de Porto Alegre · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIncreased destruction of erythrocytes in patients with sickle cell disease results in chronic hyperbilirubinemia and leads to the formation of gallstones.

objectivesThe objective of this study was to determine the combined influence of alpha thalassemia, fetal hemoglobin, and the UGT1A1 polymorphism on serum bilirubin levels and cholelithiasis in patients with sickle cell disease.

methodsWe analyzed 72 patients treated in the outpatient hematology unit of the Clinical Hospital of Porto Alegre. The alpha thalassemia trait was determined by multiplex polymerase chain reaction and the polymorphisms of UGT1A1 by capillary electrophoresis with tagged primers.

resultsTotal and indirect bilirubin levels differed significantly between genotypes TA7/TA7 and TA6/TA6 (p < 0.05). Bilirubin levels were influenced by the UGT1A1 polymorphism but not by alpha thalassemia and fetal hemoglobin. There was no association between cholelithiasis and any of the variables studied.

conclusionThese preliminary findings suggest that the UGT1A1 gene can influence serum bilirubin levels in sickle cell anemia and serve as a tool to differentiate an acute hemolytic condition from a pre-existing condition of hyperbilirubinemia.

Indexed as

Polymorphism, GeneticAdolescentAdultalpha-ThalassemiaAnemia, Sickle CellBilirubinCholelithiasisFemaleFetal HemoglobinGene ExpressionGenotypeGlucuronosyltransferaseHumansMaleMiddle AgedPromoter Regions, GeneticBilirubinFetal HemoglobinGlucuronosyltransferaseUGT1A1 Enzyme

Identifiers

PMID28567595
OpenAlexW2617141950

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.