The molecular analysis of mutations in exons 4, 11 and 21 of the cystic fibrosis transmembrane conductance regulator (CFTR) gene in cystic fibrosis patients in Kermanshah, Iran

Nasibe Karimi; Ali Bidmeshkipour; Keyghobad Ghadiri; Reza Alibakhshi

doi:10.22110/jkums.v20i4.2466

Journal of Kermanshah University of Medical Sciences

Peer-reviewed Medical Quarterly

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https://doi.org/10.22110/jkums.v20i4.2466

The molecular analysis of mutations in exons 4, 11 and 21 of the cystic fibrosis transmembrane conductance regulator (CFTR) gene in cystic fibrosis patients in Kermanshah, Iran

Author(s):

Nasibe Karimi¹,

Ali Bidmeshkipour²,

Keyghobad Ghadiri³,

Reza Alibakhshi^4,*

1Dept. of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Andorra

2Dept. of Biology, Faculty of Science, Razi University, Kermanshah, Iran

3Nosocomial Infectious Disease Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran

4Dept. of Biochemistry, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran

Journal of Kermanshah University of Medical Sciences:Vol. 20, issue 4; e69663

Published online:Mar 19, 2017

Article type:Research Article

Received:Aug 21, 2016

Accepted:Jan 15, 2017

How to Cite:Nasibe KarimiAli BidmeshkipourKeyghobad GhadiriReza AlibakhshiThe molecular analysis of mutations in exons 4, 11 and 21 of the cystic fibrosis transmembrane conductance regulator (CFTR) gene in cystic fibrosis patients in Kermanshah, Iran.J Kermanshah Univ Med Sci.20(4):e69663.https://doi.org/10.22110/jkums.v20i4.2466.

Abstract

Introduction: Cystic fibrosis (CF) is a common genetic disorder in white populations with an autosomal recessive pattern, caused by mutations in the CFTR gene. The frequency of more than 1950 various mutations reported in the CFTR gene significantly varies in different populations. ∆F508 is a common mutation in exon 10, which is first addressed in the molecular analysis of the disease. Other exons are required to be investigated owing to failing to identify mutations in the patients. The present study was conducted to investigate mutations in exons 4, 11 and 21 of the CFTR gene using the sequencing method in CF patients in Kermanshah province, Iran.

Methods: The present descriptive study was conducted on all patients with CF presenting to the medical genetics center in Kermanshah in 2010-2011. After taking blood samples and extracting DNA using saturated NaCl solution, sequences of exons were amplified using PCR and sequenced for identifying mutations.

Results: The frequency of mutations was found to be respectively 0, 0 and 5.5% in exon 11, 21 and 4. The D110H mutation was found to be homozygous in one subject and heterozygous in another. Moreover, the 4029A>G polymorphism (12.9%) was found to be homozygous in two subjects and heterozygous in three others.

Conclusion: The D110H mutation is recommended to be included in the screening programs of the study population. The results obtained support the effects of ethnic and geographical factors on the distribution of CF mutations.

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Author(s):

Nasibe Karimi:[PubMed][Scholar]
Ali Bidmeshkipour:[PubMed][Scholar]
Keyghobad Ghadiri:[PubMed][Scholar]
Reza Alibakhshi:[PubMed][Scholar]