Problem: To identify the associations of the plasminogen activator inhibitor-1 (PAI-1) -675 4G/5G, beta fibrinogen (BF) -455G/A, integrin beta 3 (ITGB3) 1565T/C, and methylenetetrahydrofolate reductase (MTHFR) 677C/T and 1298A/C polymorphisms with recurrent pregnancy loss (RPL).

Method Of Study: Polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP) were performed to assess the frequency of five candidate genetic risk factors for RPL, and the frequencies of the polymorphisms were calculated and compared between case and control groups.

Results: The BF -455G/A, MTHFR 677C/T, and 1298A/C polymorphisms were found to be positively, and ITGB3 1565T/C polymorphism negatively, associated with RPL. Homozygosity but not heterozygosity for PAI-1 -675 4G/5G polymorphism was significantly higher in patients with RPL than in the control group. The presence of both mutations of MTHFR genes highly increased the risk of RPL.

Conclusion: The data highlight the importance of thrombophilia screening in patients with RPL.

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http://dx.doi.org/10.1111/j.1600-0897.2010.00974.xDOI Listing

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