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The purpose of this study was to research the possible associations of single-nucleotide polymorphism of Val66Met BDNF gene with the occurrence of endpoints after 6 months of follow-up after a myocardial infarction with ST elevation segment — ST segment elevation myocardial infarction (STEMI). To participate in the study, 256 patients which met all the inclusion criteria were hospitalized in the department of intensive care, State Institution “L. T. Malaya Therapy National Institute NAMSU” from January 2016 to February 2019. Blood fl ow to all patients was restored at the level TIMI III. The frequency of genotypes Val66Met gene for BDNF in STEMI patients (n = 256) was the following: 66ValVal — 74.2 % (n = 190), 66ValMet + 66MetMet — 25.8 % (n = 66). The study of single-nucleotide polymorphism of Val66Met gene BDNF (rs6265) was performed by real-time polymerase chain reaction using the “TacMan TMSNP Genotyping Assays” production of Thermo Fisher Scientifi c Assay IDC_11592758_1. The emotional state of the patients and its relationship with stress were assessed with the questionnaire “Depression, Anxiety and Stress Scale-21”. It turned out that the 66ValMet + 66MetMet polymorphism of the BDNF gene, stress and anxiety 10—14 days before the event, as well as reduced left ventricular ejection fraction, are associated with an unfavorable prognosis of the combined end point 6 months after STEMI and are its independent predictors.
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The Scientific and Practical Journal of Medicine
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