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http://purl.uniprot.org/citations/23955684http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
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Purpose

To find out whether the MTHFR rs1801133 polymorphism is a risk factor for male infertility in the Spanish population. To determine if a pattern of sperm DNA hypomethylation at the paternally imprinted loci H19-ICR and/or IG-DMR is related to the MTHFR rs1801133 polymorphism and/or CTCFL mutations.

Methods

One hundred and seven samples from individuals who sought consultation for fertility problems and twenty-five semen samples from sperm donors were analyzed. The MTHFR rs1801133 SNP was analyzed in all samples by the PCR-RFLP method. We compared the distribution of the genotypes between control and infertile populations and among the groups of patients with altered seminal parameters. In those patients with the most severe hypomethylation pattern (nā€‰=ā€‰12) we also analyzed the CTCFL protein-coding exons by sequencing.

Results

There were no significant differences in the distribution of the genotypes among the control and infertile populations. Moreover, none of the genotypes were associated, neither to the characteristics of the seminogram, nor to the presence of sperm DNA hypomethylation. We did not identify frameshift, nonsense or missense mutations of the CTCFL gene.

Conclusions

The MTHFR rs1801133 polymorphism is not associated with male infertility in the Spanish population. Neither the MTHFR polymorphism, nor CTCFL mutations explain a pattern of sperm hypomethylation at paternally imprinting loci."xsd:string
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http://purl.uniprot.org/citations/23955684http://purl.uniprot.org/core/author"Blanco J."xsd:string
http://purl.uniprot.org/citations/23955684http://purl.uniprot.org/core/author"Camprubi C."xsd:string
http://purl.uniprot.org/citations/23955684http://purl.uniprot.org/core/author"Garrido N."xsd:string
http://purl.uniprot.org/citations/23955684http://purl.uniprot.org/core/author"Grossmann M."xsd:string
http://purl.uniprot.org/citations/23955684http://purl.uniprot.org/core/author"Pladevall M."xsd:string
http://purl.uniprot.org/citations/23955684http://purl.uniprot.org/core/author"Pons M.C."xsd:string
http://purl.uniprot.org/citations/23955684http://purl.uniprot.org/core/date"2013"xsd:gYear
http://purl.uniprot.org/citations/23955684http://purl.uniprot.org/core/name"J Assist Reprod Genet"xsd:string
http://purl.uniprot.org/citations/23955684http://purl.uniprot.org/core/pages"1125-1131"xsd:string
http://purl.uniprot.org/citations/23955684http://purl.uniprot.org/core/title"Lack of association of MTHFR rs1801133 polymorphism and CTCFL mutations with sperm methylation errors in infertile patients."xsd:string
http://purl.uniprot.org/citations/23955684http://purl.uniprot.org/core/volume"30"xsd:string
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