KIR and Parental HLA-C Genes With Risk of Recurrent Spontaneous Abortion: A Regional Study in Lorestan Province, Iran">
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E-ISSN : 2148-9696
Crescent Journal of
Medical and Biological Sciences
Jul 2018, Vol 5, Issue 3
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Original Article
The Relationship of Maternal KIR and Parental HLA-C Genes With Risk of Recurrent Spontaneous Abortion: A Regional Study in Lorestan Province, Iran
Soheila Akbari1, Seyyed Amir Yasin Ahmadi2, Farhad Shahsavar3
1Department of Obstetrics and Gynecology, Lorestan University of Medical Sciences, Khorramabad, Iran
2Pediatric Growth and Development Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
3Department of Immunology, Lorestan University of Medical Sciences, Khorramabad, IranDepartment of Immunology, Lorestan University of Medical Sciences, Khorramabad, Iran

CJMB 2018; 5: 194–197

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Keywords : Recurrent spontaneous abortion, KIR, HLA-C
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Abstract

Objectives: Natural killer cells (NKs) are one of the most important cells which play a key role in fetomaternal immune tolerance. This immune tolerance is induced by the interaction of fetal human leucocyte antigens (HLAs) and maternal killer-cell immunoglobulin-like receptors (KIRs). Hence, we intended to investigate the relationship of maternal KIR, parental HLA-C, and maternal-parental KIR+HLA-C with the risk of recurrent spontaneous abortion (RSA).

Materials and Methods: The present regional study in Lorestan province of Iran was conducted as a case-control study on 200 couples. Polymerase chain reaction with sequence-specifc primers (PCR-SSP) was used in order to detect genes.

Results: A signifcant correlation was found for maternal KIR2DS1 in combination with paternal HLA-C2 (P=0.0089; OR=2.25). Likewise, a signifcant relation was found for maternal C1C2 in combination with paternal C1 or C2 (P=0.0289; OR=2.25). No signifcant relation was found for KIR genes alone.

Conclusions: Our study showed a signifcant relation for maternal KIR2DS1 in combination with paternal HLA-C2 as a risk factor in our region. Investigations on this combination for increasing the success rate of assisted reproduction, for frst trimester abortions occurring after implantation and early placentation, for stillbirth groups, and for successful and unsuccessful pregnancies with malformed embryos and fetuses are suggested.

 

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Zafer Akan Deputy Editor
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