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The aim of this study is to examine whether moderate hiperhomocysteinemia is an independent risk factor for cerebral infarction.Methods: We have measured homocysteine levels in 50 patients with ischemic stroke during acute phase and postacute phase, 50 patients diagnosed with vascular dementia and healthy group of 50 subjects. Homocysteine concentration in serum was measured, on the basis of fluorescent polarisation measuring.Results: The study demonstrated that homocysteine concentration was 16.93 µmol/L in the patient group with ischemic stroke, and in the group of patients with vascular dementia was 20.39 µmol/L. Homocysteine increases during the postacute phase of ischemic stroke after 7 days for 1.54 µmol/L and 14 days for 3.66 µmol/L compared to the concentration of homocysteine after the first hours of hospitalization. Using Wilcoxon signed ranks and Mann-Whitney (P < 0.05) tests we got significant difference between homocysteine concentration at acute phase and post-acute phase of ischemic stroke and it was significant difference between concentrations of homocysteine in the acute and post-acute phase of ischemic stroke and vascular dementia. The Spearman correlation test was found signifiant correlation between the number of strokes and the concentration of homocysteine in serum of patients with vascular dementia.Conclusions: The homocysteine concentration rises significantly during of acute phase of ischemic brain stroke, and it is significantly increased during post-acute phase, which is a predictor factor for further development of vascular dementia, or a new ischemic brain stroke.

The concentration of homocysteine in patients after ischemic brain stroke and vascular dementia