Volume 10, Issue 4 (8-2012)                   IJRM 2012, 10(4): 315-320 | Back to browse issues page

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Hojati Z, Heidari S, Motovali-Bashi M. Exon 10 CFTR gene mutation in male infertility. IJRM 2012; 10 (4) :315-320
URL: http://ijrm.ir/article-1-296-en.html
Exon 10 CFTR gene mutation in male infertility
Zohreh Hojati * 1, Somaye Heidari2 , Majid Motovali-Bashi2
1- Genetics Division, Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan, Iran , z.hojati@sci.ui.ac.ir
2- Genetics Division, Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan, Iran
Abstract:   (2541 Views)
Background: About 10% of infertilities with obstructive azoospermia are congenital and caused by CF gene mutations. M469I mutation was observed for the first time in Taiwanese patients. This mutation not only causes CF, but also may be the origin of infertility too.
Objective: In this study, we aimed in designing a rapid, reliable RFLP-PCR procedure for detection of M469I mutation. The correlation and association between M469I mutation with infertility was investigated in this study.
Materials and Methods: one hundred ten patients (90 non obstructive and 20 obstructive) and 60 normal individuals were considered in this study. M469I mutation was detected using RFLP-PCR. This technique was completely designed for M469I genotyping, for the first time in our study. Amplification of the region surrounding the mutation in exon 10 of CFTR gene was then performed. RFLP analysis was carried out using the NdeI restriction enzyme. Results: All genomic DNA samples were genotyped successfully. M469I mutation was observed only in patients group. Therefore, genotype containing mutant allele (GT) has been detected only in the patients group. There was no significant correlation between GT and TT genotypes with infertility (p=0.437).
Conclusion: The M469I mutation has only been observed in Exon 10 CFTR gene of infertile patients, not in the control group. This mutation causes congenital bilateral absence of vaz deferens and finally infertility. This indicates a strong association between the M469I mutation and male infertility. Therefore, this is a CF-causing CFTR mutation that could be considered as a cause of infertility.
Keywords: Infertility, Cystic fibrosis, Azoospermia
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Type of Study: Original Article |
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