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Showing 2 results for Dehghanian

Majid Motovali-Bashi, Zahra Rezaei, Fariba Dehghanian, Halimeh Rezaei,
Volume 13, Issue 9 (10-2015)
Abstract

Background: Infertility is a health problem which affects about 10-20% of married couples. Male factor infertility is involved approximately 50% of infertile couples. Most of male infertility is regarding to deletions in the male-specific region of the Y chromosome.
Objective: In this study, the occurrence of deletions in the AZF region and association between infertility and paternal age were investigated in Iranian men population.
Materials and Methods: To assess the occurrence of Y chromosomal microdeletions and partial deletions of the AZF region, 100 infertile men and 100 controls with normal spermatogenesis were analyzed. AZFa, AZFb, AZFc and partial deletions within the AZFc region were analyzed using multiplex PCR method. Finally, the association between paternal age and male infertility was evaluated.
Results: No AZFa, AZFb or AZFc deletions were found in the control group. Seven infertile men had deletions as the following: one AZFb, five AZFc, and one AZFab. Partial deletions of AZFc (gr/gr) in 9 of the 100 infertile men (9/100, 9%) and 1 partial AZFc deletions (gr/gr) in the control group (1/100, 1%) were observed. In addition, five b2/b3 deletions in five azoospermic subjects (5/100, 5%) and 2 partial AZFc deletions (b2/b3) in the control group (2/100, 2%) were identified. Moreover, the risk of male infertility was influenced by the paternal age.
Conclusion: The results of this study suggested that the frequency of Y chromosome AZF microdeletions increased in subjects with severe spermatogenic failure and gr/gr deletion associated with spermatogenic failure.
Zohreh Hojati, Fatemeh Nouri Emamzadeh, Fariba Dehghanian,
Volume 14, Issue 6 (6-2016)
Abstract

Background: Some dynamic changes occurs during spermatogenesis such as histone removal and its replacement with transition nuclear protein and protamine. These proteins are required for packing and condensation of sperm chromatin. JHDM2A is a histone demethylase that directly binds to promoter regions of Tnp1 and Prm1 genes and controls their expression by removing H3K9 at their promoters.
Objective: The association between polymorphisms of exon 12 and exon 24 inJHDM2A gene and male infertility were evaluated for the first time.
Materials and Methods: In this experimental study, 400 infertile men (oligospermia and azoospermia) and normal healthy fathers were evaluated (n=200). Single Strand Conformation Polymorphism (SSCP-PCR) and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) methods were used for screening any polymorphisms that are exist in exon 12 and exon 24.
Results: Exon 24 PCR products were analyzed by RFLP but no polymorphism was found in this exon at the restriction site of EcoRV enzyme. Our monitoring along the whole nucleotides of exon 12 and exon 24 were continued using SSCP method, but we found no change along these exons.
Conclusion: Generally, this study evaluated the association between polymorphisms in exon 12 and exon 24 of JHDM2A gene and male infertility which suggests that polymorphisms of these exons may not be associated with the risk of male infertility.

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