The Connotation of Variances in the Risk Predictors, Medications, Homocysteine, And Homocysteine Pathway Gene Polymorphisms With CVA/Stroke

Abstract

Cerebrovascular accidents (CVAs) are vascular multifactorial, multigenic ailments with intricate genetic, environmental risk influences. The present study aimed to establish affiliation of CVAs/stroke with blood parameters, differences in prescribed drugs consump- tion, and with differences in homocysteine pathway genes polymorphisms. The partic- ipants in study included controls n ¼ 251, transient ischemic attack (TIA) patients n ¼ 16, and stroke cases n ¼ 122, respectively, (total participants, n ¼ 389). The analyzed single nucleotide polymorphisms (SNPs) included C677T(rs1801133), A1298C(rs1801131) of methylene tetrahydrofolate reductase (MTHFR), A2756G(rs1805087) of methyl tetrahy- drofolate homocysteine methyltransferase/methionine synthase (MS), and the A192G (rs662) of paraoxonase 1(PON1) genes, all validated by tetra-primer allele refractory mutation system polymerase chain reaction (T-ARMS-PCR). The insertion deletion (I/D; rs4646994) polymorphism in angiotensin converting enzyme (ACE) gene was analyzed using routine PCR. All studied traits were scrutinized through analysis of variance (ANOVA), and later through regression analysis. Through ANOVA and multiple comparison, there was association of CVA with serum homocysteine, cholesterol, and with diastolic blood pressure readings. When data was subjected to regression, serum homocysteine and diastolic blood pressure (significant through ANOVA), as well as two additional traits, high-density lipoproteins (HDL), and rs1801133 MTHFR SNP sustained statistical significance and noteworthy odds in relation to CVA and stroke. The ailments affecting cerebral vasculature are mutifactorial, whereby genes, proteins, and environmental cues all exert cumulative effects enhancing CVA risk. The current study emphasizes that SNPs and variation in circulating biomarkers can be used for screening purposes and for reviewing their effects in stroke/CVA-linked risk progression.