Hemoglobinopathies in newborns from Salvador, Bahia, Northeast Brazil

Hemoglobinopathies are hereditary disorders of the hemoglobin molecule with a high prevalence worldwide. Brazil has a prevalence of 0.1 to 0.3% of newborns with sickle cell anemia and 20.0 to 25.0% of heterozygous alpha2 thalassemia among African Brazilians. In the present study, we investigated the...

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Main Authors: Adorno Elisângela Vitória, Couto Fábio David, Moura Neto José Pereira de, Menezes Joelma Figueiredo, Rêgo Marco, Reis Mitermayer Galvão dos, Gonçalves Marilda Souza
Format: Article
Language:English
Published: Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz 2005-01-01
Series:Cadernos de Saúde Pública
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-311X2005000100032
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author Adorno Elisângela Vitória
Couto Fábio David
Moura Neto José Pereira de
Menezes Joelma Figueiredo
Rêgo Marco
Reis Mitermayer Galvão dos
Gonçalves Marilda Souza
author_facet Adorno Elisângela Vitória
Couto Fábio David
Moura Neto José Pereira de
Menezes Joelma Figueiredo
Rêgo Marco
Reis Mitermayer Galvão dos
Gonçalves Marilda Souza
author_sort Adorno Elisângela Vitória
collection DOAJ
description Hemoglobinopathies are hereditary disorders of the hemoglobin molecule with a high prevalence worldwide. Brazil has a prevalence of 0.1 to 0.3% of newborns with sickle cell anemia and 20.0 to 25.0% of heterozygous alpha2 thalassemia among African Brazilians. In the present study, we investigated the presence of variant hemoglobins and alpha2(3.7 Kb) and alpha2(4.2 Kb) thalassemia in newborns from Salvador, Bahia, Brazil. Samples of umbilical cord blood from a total of 590 newborns were analyzed, of which 57 (9.8%) were FAS; 36 (6.5%) FAC; one (0.2%) SF; and five (0.9%) FSC. One hundred fourteen (22.2%) newborns had alpha2(3.7 Kb) thalassemia, of whom 101 (19.7%) were heterozygous and 13 (2.5%) homozygous, showing statistical significance for hematological data between newborns with normal alpha genes and alpha2(3.7 Kb) thalassemia carriers. The alpha2(4.2 Kb) thalassemia was not found. Frequencies found in the present study confirm that hemoglobinopathies are a public health problem in Brazil, emphasizing the need for neonatal screening and genetic counseling programs.
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spelling doaj.art-08cb1aee4d1945bb8241252e32212b832022-12-21T19:41:30ZengEscola Nacional de Saúde Pública, Fundação Oswaldo CruzCadernos de Saúde Pública0102-311X1678-44642005-01-01211292298Hemoglobinopathies in newborns from Salvador, Bahia, Northeast BrazilAdorno Elisângela VitóriaCouto Fábio DavidMoura Neto José Pereira deMenezes Joelma FigueiredoRêgo MarcoReis Mitermayer Galvão dosGonçalves Marilda SouzaHemoglobinopathies are hereditary disorders of the hemoglobin molecule with a high prevalence worldwide. Brazil has a prevalence of 0.1 to 0.3% of newborns with sickle cell anemia and 20.0 to 25.0% of heterozygous alpha2 thalassemia among African Brazilians. In the present study, we investigated the presence of variant hemoglobins and alpha2(3.7 Kb) and alpha2(4.2 Kb) thalassemia in newborns from Salvador, Bahia, Brazil. Samples of umbilical cord blood from a total of 590 newborns were analyzed, of which 57 (9.8%) were FAS; 36 (6.5%) FAC; one (0.2%) SF; and five (0.9%) FSC. One hundred fourteen (22.2%) newborns had alpha2(3.7 Kb) thalassemia, of whom 101 (19.7%) were heterozygous and 13 (2.5%) homozygous, showing statistical significance for hematological data between newborns with normal alpha genes and alpha2(3.7 Kb) thalassemia carriers. The alpha2(4.2 Kb) thalassemia was not found. Frequencies found in the present study confirm that hemoglobinopathies are a public health problem in Brazil, emphasizing the need for neonatal screening and genetic counseling programs.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-311X2005000100032HemoglobinopathiesSickle Cell AnemiaThalassemiaNewborn Infant
spellingShingle Adorno Elisângela Vitória
Couto Fábio David
Moura Neto José Pereira de
Menezes Joelma Figueiredo
Rêgo Marco
Reis Mitermayer Galvão dos
Gonçalves Marilda Souza
Hemoglobinopathies in newborns from Salvador, Bahia, Northeast Brazil
Cadernos de Saúde Pública
Hemoglobinopathies
Sickle Cell Anemia
Thalassemia
Newborn Infant
title Hemoglobinopathies in newborns from Salvador, Bahia, Northeast Brazil
title_full Hemoglobinopathies in newborns from Salvador, Bahia, Northeast Brazil
title_fullStr Hemoglobinopathies in newborns from Salvador, Bahia, Northeast Brazil
title_full_unstemmed Hemoglobinopathies in newborns from Salvador, Bahia, Northeast Brazil
title_short Hemoglobinopathies in newborns from Salvador, Bahia, Northeast Brazil
title_sort hemoglobinopathies in newborns from salvador bahia northeast brazil
topic Hemoglobinopathies
Sickle Cell Anemia
Thalassemia
Newborn Infant
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-311X2005000100032
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