مهندس احمد آل یاسین

Histones are replaced by protamines to package sperm head DNA during mammalian spermatogenesis. Protamine genes variation cause sperm DNA damage and is affect infertility in men. Therefore, this study aim was investigation on association of two rs737008 in PRM1 gene and rs4780356 in PRM2 gene polymorphisms with azoospermia and oligospermia in Iranian idiopathic infertile men.

DNA extraction from blood samples of 96 idiopathic infertile men with azoospermia and oligospermia and 100 normal control men. Prevalance of two studied polymorphisms was identified by restriction fragment length polymorphism (PCR-RFLP). Then results were confirmed with sequencing.

A mutant allele frequency of rs737008 in PRM1 gene polymorphism was difference in patient and control groups but statistical analysis showed no significant association between this polymorphism prevalance among case and control groups (P>0.05). By genotyping shown no existent rs4780356 in PRM2 gene polymorphism in anyone of case and control groups.

This study finding indicated there was not association with prevalence of two rs737008 in PRM1 gene and rs4780356 in PRM2 gene polymorphisms with oligospermia and azospermia and idiopatic male infertility in Iranian population. More studies need to demonstrate the role of these two polymorphisms with idiopathic infertility in Iranian men.

Frequency of male infertility is 10-15% and there is not definite reason in 50% of infertility in men. This form of infertility is named idiopathic infertility and genetic factors are one of male infertility causes. Therefore, aim of this study was investigation on association between T886C polymorphism in TAS2R38 gene and C109869T polymorphism in SLC6A14 gene with Iranian idiopathic infertile male.

For this study. DNA was extracted from 200 blood samples consist of 100 men with idiopathic infertility (oligospermic and azoospermia) and 100 fertile men as control groups. Genotyping of two studied polymorphisms were performed by using of molecular methods, HRM-PCR Corbett, PCR-RFLP and Sequencing, then results were statistical analyzed.

For T886C polymorphism in TAS2R38 gene statistical analysis showed no significant difference between patient and control groups (P=0.9) and results shown was not association between this polymorphism and idiopathic male infertility in Iranian population. Frequency of C109869T polymorphism in SLC6A14 gene was different in infertile patients and control groups (P=0.04) and is indicated significant relationship with idiopathic male infertility in studied Iranian men population.

According to this research results, The C109869T polymorphism in SLC6A14 gene is actual in affected of idiopathic infertility in Iranian men population and could cause oligospermia and azoospermia and created infertility in Iranian male. For confirming these results is recommended study on more samples.

Histones are replaced by protamines to package sperm head DNA during mammalian spermatogenesis. Protamine genes variation cause sperm DNA damage and is affect infertility in men. Therefore this study aim was investigation on association of two rs737008 in PRM1 gene and rs4780356 in PRM2 gene polymorphisms with azoospermia and oligospermia in Iranian idiopathic infertile men.

DNA extraction from blood samples of 96 idiopathic infertile men with azoospermia and oligospermia and 100 normal control men. Prevalance of two studied polymorphisms was identified by restriction fragment length polymorphism (PCR-RFLP). Then results were confirmed with sequencing

A mutant allele frequency of rs737008 in PRM1 gene polymorphism was difference in patient and control groups but statistical analysis showed no significant association between this polymorphism prevalance among case and control groups (P>0.05). By genotyping shown no existent rs4780356 in PRM2 gene polymorphism in anyone of case and control groups.

This study finding indicated there was not association with prevalence of two rs737008 in PRM1 gene and rs4780356 in PRM2 gene polymorphisms with oligospermia and azospermia and idiopatic male infertility in Iranian population. More studies need to demonstrate the role of these two polymorphisms with idiopathic infertility in Iranian men.

Epigenetic changes are one of the most common changes in development of cancers. These changes alter the expression of certain genes that play important roles in the etiology of cancer. Increasing the expression of Vimentin gene due to epigenetic changes in Epithelial-Mesenchymal Transition(EMT) in breast carcinoma is well known. The relation between EMT and the malignancy invasion process has also been confirmed. Vimentin is the principal EMT marker that performs this task during metastasis. The purpose of this study is to investigate the methylation of the vitamin gene in a specific position.
Material & In this case-control study, the methylation pattern of the promoter of the Vimentin gene was evaluated in a specific site. Blood samples were taken from 30 breast cancer patients and 30 healthy individuals. DNA samples were digested with the methylation sensitive restriction enzyme. Control and treated DNA was amplified by PCR for qualitative investigation and real time PCR for quantitative analysis of methylation.
Using the Ct value and the%Me=100(e-0.7(ΔCt)) formula, the correlation between Vimentin hypomethylation and expression of Estrogen Receptor(ER), Progesterone Receptor(PR) and Human Epidermal growth factor Receptor2(HER2) status was checked (p-value The results indicate that hypomethylated promoter of the Vim gene in the examined site correlates with ER, but does not have any correlation with PR and Her2, and hence the hypomethylation of the Vimentin gene in this position can be proposed as a molecular biomarker.

Protamines are DNA-binding proteins in the sperm nucleus, which cause differentiation of human spermatogenesis. Protamines required for packaging nucleus sperm by replacement of histones with protamines. Sperm protamine deficiency has been associated with spermatogenesis failed and caused male infertility. In this study association of four SNPs in TNP2 gene were studied in Iranian idiopathic infertile men with azoospermia or oligospermia. Analysis of four SNPs include T1019G, G1272C¡ G deletion at 1036 and 1046 in TNP2 gene was performed by DNA extraction from blood samples of 96 idiopathic infertile men with azoospermia or oligospermia and 100 normal control men. Then using restriction fragment length polymorphism (PCR-RFLP) for detection of T1019G and G1272C, SNPs and for identification of G deletion at 1036 and 1046 used Single Strand Conformation Polymorphism (PCR- SSCP). Results were confirmed by DNA sequencing analysis. For (G1272C) in TNP2 gene, frequency of CC genotype was differented in fertile and infertile groups but statistical analysis showed no significant association related to this SNP in case and control groups. As also no polymorphisms were found for T1019G and G deletion at 1036 and 1046 nt. These results are consistent with previous studies and indicating that four tested SNPs was not associated with oligospermia and azospermia and idiopatic male infertility in Iranian population.