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Tissue Antigens. 2011 Feb;77(2):131-5. doi: 10.1111/j.1399-0039.2010.01584.x.

Role of 14-bp insertion/deletion polymorphism in HLA-G among Indian women with recurrent spontaneous abortions.

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Molecular Anthropology Group, Biological Anthropology Unit, Indian Statistical Institute, Habsiguda, Hyderabad, India.

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  • Tissue Antigens. 2011 Apr;77(4):365.


Human leukocyte antigen (HLA)-G is predominantly expressed on the extravillous cytotrophoblasts at the fetal-maternal interface. The 14-bp polymorphism in exon 8 is associated with HLA-G messenger ribonucleic acid (mRNA) stability and isoform alternative splicing patterns, thereby influencing the functionality of HLA-G in pregnancy. We analysed the 14-bp indel polymorphism in 143 recurrent spontaneous abortions (RSAs) and 150 control couples. We did not find any significant difference in the 14-bp insertion/deletion allele frequencies among the RSA and control couples. Analysis for increased sharing of the polymorphism in the RSA and the control couples also did not show any significant difference. However, we found an increase in the frequency of the 14-bp deletion homozygotes in the RSA women, which could lead to extremely high levels of soluble HLA-G (sHLA-G).

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