Introduction: Multiple sclerosis is an inflammatory disease, where fibrin deposition and the impairment in its degradation have been shown to play an important role in the demyelination process. Tissue plasminogen activator (tPA) is a serine protease that enhances the conversion of plasminogen into its active form plasmin, the principal tPA inhibitor is the PAI-1. Several polymorphisms impact its gene expression and protein activity. Furthermore, the aim of this study was to investigate the association between the - 844 G>A, HindIII C>G, and 4G/5G polymorphisms and susceptibility to MS.
Material And Methods: The study group included 400 Mexican mestizo subjects: 200 unrelated patients and 200 unrelated individuals identified as control subjects. The analysis of polymorphisms was performed by polymerase chain reaction-restriction fragment length polymorphism.
Results: A significant association was found between the CG genotype of the C>G polymorphism and susceptibility to MS (OR = 1.58, = 0.03); moreover, the frequency of 5G allele and 5G/5G genotype of the 4G/5G polymorphism was statistically significant (OR = 1.36 and = 0.04 and OR = 2.43 and = 0.02, respectively). With respect to the relation between the scores of progression (EDSS) and severity (MSSS), no association was found between EDSS and genotypes of the polymorphisms analyzed. Regarding MSSS, male that carries genotype GA of the -844 G>A and genotype 4G/5G of the 4G/5G polymorphisms showed a significant association with an increase of media of MSSS in comparison with females ( = 0.01 in both cases).
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| http://dx.doi.org/10.1155/2019/9626289 | DOI Listing |
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