Identification of a Neonate with Thalassemia Intermedia Despite Premarital Screening Program in Mazandaran Province (Co-inheritance of Hb Knossos and IVS II-1 G> A Mutations)

Background: Beta thalassemia is a common health problem in Iran especially in Northern provinces. Premarital screening for thalassemia is compulsory in Iran and identification of the carriers is based on primary CBC (Cell Blood Count) and hemoglobin electrophoresis. Silent mutations on β-gl...

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Main Authors: Hossein Karami, Hossein Jalali, Mehrad Mahdavi, Mohammad Reza Mahdavi
Format: Article
Language:English
Published: Mazandaran University of Medical Sciences and Health Services 2017-05-01
Series:Research in Molecular Medicine
Subjects:
Online Access:http://rmm.mazums.ac.ir/browse.php?a_code=A-10-856-2&slc_lang=en&sid=1
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author Hossein Karami
Hossein Jalali
Mehrad Mahdavi
Mohammad Reza Mahdavi
author_facet Hossein Karami
Hossein Jalali
Mehrad Mahdavi
Mohammad Reza Mahdavi
author_sort Hossein Karami
collection DOAJ
description Background: Beta thalassemia is a common health problem in Iran especially in Northern provinces. Premarital screening for thalassemia is compulsory in Iran and identification of the carriers is based on primary CBC (Cell Blood Count) and hemoglobin electrophoresis. Silent mutations on β-globin gene have borderline or normal hematological indices that cannot be detected in premarital screening. Material and Methods: A 4 years old boy affected with β-thalassemia was referred to the lab for molecular analysis. During the screening program for β-thalassemia, his father and mother were diagnosed as α and β-thalassemia carrier respectively.  Results: The results of molecular analysis showed that in addition to the α-globin single gene deletion (α3.7) the father have also carried a silent mutation on his β-globin gene named HBB c.82G>T or Hb Knossos that was missed in screening program. Conclusion: The presented case shows that using CBC and hemoglobin electrophoresis in premarital screening program for detecting β-thalassemia carriers is not a valid approach and individuals who are carriers of silent β-globin gene mutations are missed in this procedure. Hence, in premarital screening program precise molecular investigation especially when the partner is a typical β-thalassemia carrier is recommended.
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spelling doaj.art-c1e3739f5ec44ffda1bb4652abf25ab82022-12-22T03:47:16ZengMazandaran University of Medical Sciences and Health ServicesResearch in Molecular Medicine2322-13482322-133X2017-05-01523436Identification of a Neonate with Thalassemia Intermedia Despite Premarital Screening Program in Mazandaran Province (Co-inheritance of Hb Knossos and IVS II-1 G> A Mutations)Hossein Karami0Hossein Jalali1Mehrad Mahdavi2Mohammad Reza Mahdavi3 Thalassemia Research Center, Mazandaran University of Medical Sciences, Sari, Iran Students Research Committee, Thalassemia Research Center, Mazandaran University of Medical Sciences, Sari, Iran Sina Mehr Research Center, Sari, Iran Thalassemia Research Center, Mazandaran University of Medical Sciences, Sari, Iran Background: Beta thalassemia is a common health problem in Iran especially in Northern provinces. Premarital screening for thalassemia is compulsory in Iran and identification of the carriers is based on primary CBC (Cell Blood Count) and hemoglobin electrophoresis. Silent mutations on β-globin gene have borderline or normal hematological indices that cannot be detected in premarital screening. Material and Methods: A 4 years old boy affected with β-thalassemia was referred to the lab for molecular analysis. During the screening program for β-thalassemia, his father and mother were diagnosed as α and β-thalassemia carrier respectively.  Results: The results of molecular analysis showed that in addition to the α-globin single gene deletion (α3.7) the father have also carried a silent mutation on his β-globin gene named HBB c.82G>T or Hb Knossos that was missed in screening program. Conclusion: The presented case shows that using CBC and hemoglobin electrophoresis in premarital screening program for detecting β-thalassemia carriers is not a valid approach and individuals who are carriers of silent β-globin gene mutations are missed in this procedure. Hence, in premarital screening program precise molecular investigation especially when the partner is a typical β-thalassemia carrier is recommended.http://rmm.mazums.ac.ir/browse.php?a_code=A-10-856-2&slc_lang=en&sid=1β-thalassemia Hb Knossos Premarital screening
spellingShingle Hossein Karami
Hossein Jalali
Mehrad Mahdavi
Mohammad Reza Mahdavi
Identification of a Neonate with Thalassemia Intermedia Despite Premarital Screening Program in Mazandaran Province (Co-inheritance of Hb Knossos and IVS II-1 G> A Mutations)
Research in Molecular Medicine
β-thalassemia
Hb Knossos
Premarital screening
title Identification of a Neonate with Thalassemia Intermedia Despite Premarital Screening Program in Mazandaran Province (Co-inheritance of Hb Knossos and IVS II-1 G> A Mutations)
title_full Identification of a Neonate with Thalassemia Intermedia Despite Premarital Screening Program in Mazandaran Province (Co-inheritance of Hb Knossos and IVS II-1 G> A Mutations)
title_fullStr Identification of a Neonate with Thalassemia Intermedia Despite Premarital Screening Program in Mazandaran Province (Co-inheritance of Hb Knossos and IVS II-1 G> A Mutations)
title_full_unstemmed Identification of a Neonate with Thalassemia Intermedia Despite Premarital Screening Program in Mazandaran Province (Co-inheritance of Hb Knossos and IVS II-1 G> A Mutations)
title_short Identification of a Neonate with Thalassemia Intermedia Despite Premarital Screening Program in Mazandaran Province (Co-inheritance of Hb Knossos and IVS II-1 G> A Mutations)
title_sort identification of a neonate with thalassemia intermedia despite premarital screening program in mazandaran province co inheritance of hb knossos and ivs ii 1 g a mutations
topic β-thalassemia
Hb Knossos
Premarital screening
url http://rmm.mazums.ac.ir/browse.php?a_code=A-10-856-2&slc_lang=en&sid=1
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