Investigation of the association between matrix metalloproteinase-9 genetic polymorphisms and development of pre-eclampsia in Chinese pregnant women
We carried out a case-control study to evaluate the role of MMP-9 -1562 C/T (rs3918242) genetic polymorphism in the risk of pre-eclampsia in Chinese pregnant women. Between March 2013 and January 2015, 107 pregnant women with pre-eclampsia were recruited from the Second Affiliated Hospital of Zhengzhou University. Genotyping of MMP-9 was carried out using polymerase chain reaction-restriction fragment length polymorphism assay.