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Prevalence of intron 22 inversion mutation of FVIII gene in Iranian severe hemophilia A patients

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Year: 2017
COI code: GERMANCONF01_039
Paper Language: English

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Authors Prevalence of intron 22 inversion mutation of FVIII gene in Iranian severe hemophilia A patients

  Howra Bahrulolum - MSc in Genetics , Faculty of Advanced Medical Sciences , Tehran Medical Branch , Islamic Azad University, Tehran , Iran
  Mehrdad Hashemi - Associate Professor of molecular genetics , Faculty of Advanced Medical Sciences ,Tehran Medical Branch, Islamic Azad University, Tehran, Iran
  Ali Muhammad Malekasgar - Associate Professor of cytogenetic , Faculty of Medicine, Qom University of Medical Sciences, Qom,Iran

Abstract:

Background & Aims: Hemophilia A is a common disorder of blood coagulation caused by deficiency of factor VIII with X-linked recessive inheritance affecting approximately 1 in 5000-10,000 male births worldwide. Hemophilia A caused by a heterogeneous spectrum of molecular defects in factor VIII gene .The most common mutation is the intron 22 inversion which can be analyzed by several methods, such as; Southern blotting , LD PCR or IS-PCR. This study aimed to identify the prevalence of intron 22 inversion mutation in Iranian patients with hemophilia A using IS-PCR method.Materials & Methods: This study performed on 30 hemophilia A patients. After extracting DNA from peripheral blood leukocytes by salting out method , Inverse shifting PCR was performed to detect intron 22 inversion and then PCR products were analyzed on 1/5% agarose gel electrophoresis.Results: According to results , in 20 patients with severe hemophilia A ,7/20(35%) were found to have the Intron 22 inversion . 28% (7/2) of patients had a inversion type I and 72% (7/5) inversion type II. Conclusion: The results of this study showed that the frequency of the intron 22 inversion mutation in Iranian sever hemophilia A patients were almost similar with those found in other population but the frequency of inversion type II were significantly higher than frequencies of other reporting population. Also this study demonstrate that using Inverse shifting PCR is a precise and rapid method for assessment of intron 22 inversion mutations in hemophilia A patients.

Keywords:

Hemophilia A , Factor VIII , Intron 22 inversion , IS-PCR

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COI code: GERMANCONF01_039

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Bahrulolum, Howra; Mehrdad Hashemi & Ali Muhammad Malekasgar, 2017, Prevalence of intron 22 inversion mutation of FVIII gene in Iranian severe hemophilia A patients, International Congress of Science and Engineering, آلمان, دبيرخانه دايمي كنگره, دانشگاه هامبورگ, https://www.civilica.com/Paper-GERMANCONF01-GERMANCONF01_039.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Bahrulolum, Howra; Mehrdad Hashemi & Ali Muhammad Malekasgar, 2017)
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Type: Azad University
Paper No.: 547
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