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http://purl.uniprot.org/citations/31123954http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/31123954http://www.w3.org/2000/01/rdf-schema#comment"

Purpose

Vitamin B12 (cobalamin, Cbl) plays a role in the recycling of folate, which is important in pregnancy. Transcobalamin II (TCN2) and transcobalamin receptor (TCblR) proteins are involved in the cellular uptake of Cbl. TCN2 binds Cbl in the plasma, and TCblR binds TCN2-Cbl at the cell surface. Therefore, we investigated the potential association between polymorphisms in Cbl transport proteins, TCN2 and TCblR, and recurrent implantation failure (RIF) susceptibility.

Methods

The genotypes of TCN2 67A>G, TCN2 776C>G, and TCblR 1104C>T were determined for RIF patients and healthy controls using a polymerase chain reaction restriction fragment length polymorphism assay. Additionally, statistical analysis was performed to compare the genotype frequencies between RIF patients and controls.

Results

The TCN2 67 polymorphism AG type was associated with RIF risk. Some allele combinations that contained the TCN2 67 polymorphism G allele were associated with increased RIF risk, whereas other allele combinations that contained the TCblR 1104 polymorphism T alleles were associated with decreased RIF risk. In genotype combination analysis, two combinations containing the TCN2 67 polymorphism AG type were associated with RIF risk.

Conclusion

Our study showed that the polymorphisms of TCN2 and TCblR are associated with RIF and are potential genetic predisposing factors for RIF among Korean women. Additionally, our findings support a potential role for TCN2 and TCblR in RIF among Korean women. However, further studies are required to investigate the role of the polymorphisms in those proteins and RIF because the roles of the TCN2 and TCblR polymorphisms in RIF are not clear."xsd:string
http://purl.uniprot.org/citations/31123954http://purl.org/dc/terms/identifier"doi:10.1007/s10815-019-01455-4"xsd:string
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/author"Kim J.H."xsd:string
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/author"Kim N.K."xsd:string
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/author"Park H.S."xsd:string
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/author"Kim Y.R."xsd:string
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/author"Lee W.S."xsd:string
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/author"An H.J."xsd:string
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/author"Ryu C.S."xsd:string
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/author"Kim J.O."xsd:string
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/author"Ko E.J."xsd:string
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/author"Ahn E.H."xsd:string
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/date"2019"xsd:gYear
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/name"J Assist Reprod Genet"xsd:string
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/pages"1513-1522"xsd:string
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/title"Genetic polymorphisms of the cobalamin transport system are associated with idiopathic recurrent implantation failure."xsd:string
http://purl.uniprot.org/citations/31123954http://purl.uniprot.org/core/volume"36"xsd:string
http://purl.uniprot.org/citations/31123954http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/31123954
http://purl.uniprot.org/citations/31123954http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/31123954
http://purl.uniprot.org/uniprot/#_Q9NPF0-mappedCitation-31123954http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/31123954
http://purl.uniprot.org/uniprot/#_Q9NPM0-mappedCitation-31123954http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/31123954
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