Association between maternal single-nucleotide polymorphisms in HLA-G gene and risk of preeclampsia

Author(s):  
Cui Ma ◽  
Yuanyuan Zheng ◽  
Xiaowei Liu ◽  
Weiyuan Zhang
2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Agata Sakowicz ◽  
Michalina Lisowska ◽  
Lidia Biesiada ◽  
Magda Rybak-Krzyszkowska ◽  
Agnieszka Gach ◽  
...  

Background. Metalloproteinases (MMPs) play a pivotal role during the process of trophoblast invasion and placentation. The appearance of five functional single-nucleotide polymorphisms (SNP) in the genes of the metalloproteinases most commonly implicated in the implantation process may influence the development of preeclampsia. Methods. Blood samples were collected from 86 mothers and 86 children after preeclampsia and 85 mothers and 85 children with uncomplicated pregnancies. The distribution of genotypes for −1607 1G/2G MMP1, −735 C/T MMP2, −1306 C/T MMP2, −1171 5A/6A MMP3, and −1562C/T MMP9 polymorphisms was determined by RFLP-PCR. Results. The occurrence of 1G/1G MMP1 or 5A/5A MMP3 genotype in the mother or 1G/1G MMP1 or 5A/6A MMP3 genotype in the child is associated with preeclampsia development. Moreover, simultaneous maternal and fetal 1G/1G homozygosity increases the risk of preeclampsia development 2.39-fold and the set of maternal 5A/5A and fetal 5A/6A MMP3 genotypes by over 4.5 times. No association between the carriage of studied MMP2 or MMP9 polymorphisms and the predisposition to preeclampsia was found. Conclusion. The maternal 1G/1G MMP1 and 5A/5A MMP3 and fetal 1G/1G MMP1 and 5A/6A MMP3 gene polymorphisms may be strong genetic markers of preeclampsia, occurring either individually or together.


Author(s):  
Hamid DARGAHI ◽  
Mohammad Hossein NICKNAM ◽  
Mahroo MIRAHMADIAN ◽  
Mahdi MAHMOUDI ◽  
Saeed ASLANI ◽  
...  

Background: Endoplasmic reticulum aminopeptidases 1 and 2 (ERAP1 and 2) are involved in blood pressure regulation and single nucleotide polymorphisms (SNPs) of these genes have been linked to preeclampsia. This study intended to assess the association of ERAP1 and 2 genes polymorphism with Iranian preeclamptic women. Methods: In this case-control study, 148 preeclamptic and 133 pregnant women were selected from the Kosar Hospital, Qazvin, Iran, during 2013-2015. In order to genotype the subjects for rs28096, rs30187, rs26653, rs3734016, rs34750 and rs2549782, rs17408150 for ERAP1 and 2 genes, respectively, Real-Time PCR allelic discrimination approach was exploited. Results: Neither allelic nor genotype frequencies of all seven polymorphisms were significantly different between two groups. Though, ACGACTT and GTCAGGA haplotypes were related with decreased (P=0.0079, OR=0.559, 95% CI: 0.363-0.861 and P=0.02, OR=0.417, 95% CI: 0.194-0.896, respectively), but ACGACGT and GTGACTT haplotypes were associated with an increased (P=0.00082, OR=3.657, 95% CI: 1.630-8.206 and P=0.02, OR=2.401, 95% CI: 1.119-5.151, respectively) risk of preeclampsia. Moreover, some positions were detected to be in linkage disequilibrium. Conclusion: Ongoing investigation resulted differently from before performed studies considering the role of ERAP1 and ERAP2 gene polymorphisms in predisposing women to preeclampsia, emphasizing on the genetic structure differences among various racial populations.


2010 ◽  
Vol 34 (8) ◽  
pp. S75-S75
Author(s):  
Weifeng Zhu ◽  
Zhuoqi Liu ◽  
Daya Luo ◽  
Xinyao Wu ◽  
Fusheng Wan

2007 ◽  
Vol 28 (3) ◽  
pp. 161-164 ◽  
Author(s):  
Rosalind Arden ◽  
Nicole Harlaar ◽  
Robert Plomin

Abstract. An association between intelligence at age 7 and a set of five single-nucleotide polymorphisms (SNPs) has been identified and replicated. We used this composite SNP set to investigate whether the associations differ between boys and girls for general cognitive ability at ages 2, 3, 4, 7, 9, and 10 years. In a longitudinal community sample of British twins aged 2-10 (n > 4,000 individuals), we found that the SNP set is more strongly associated with intelligence in males than in females at ages 7, 9, and 10 and the difference is significant at 10. If this finding replicates in other studies, these results will constitute the first evidence of the same autosomal genes acting differently on intelligence in the two sexes.


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