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Background: Myocardial infarction is the death of the heart muscle tissue that causes tissue damage and inflammation. Quercetin consumption and interval training can probably prevent the progression of this condition in the active parts of the myocardium by activating angiogenesis pathways and stimulating hypoxia factor-1a (HIF-1a) at the onset of infarction. Objectives: This study investigates the effect of high-intensity interval training and quercetin nanoliposome consumption on angiogenesis indexes in the heart tissue of myocardial infarction rats. Methods: In this experimental study, 30 male rats weighing 250 ± 20 g were randomly divided into five groups including: 1) myocardial infarction + training, 2) myocardial infarction + supplement, 3) myocardial infarction + training + supplement, 4) healthy control, and 5) myocardial infarction. Myocardial infarction was induced by subcutaneous injection of soprenaline hydrochloride at a dose of 80 mg / kg. Groups 2 and 3 received quercetin daily at a dose of 0.25 mg / kg body weight by gavage. Groups 1 and 3 performed 5 sessions of training protocol per week for 8 weeks. The Smirnov-Kolmogorov, one-way analysis of variance and Tukey’s post hoc test were used to analyze the data and the alpha level less than 0.05 was considered as a significant level. Results: Interval training and quercetin supplementation had a significant effect on increasing VEGF and HIF-1a gene expression (P=0.0009). Conclusion: The combined effect of interval training and quercetin consumption may prevent the progression of myocardial infarction by activating angiogenesis factors VEGF and HIF-1a in the early stages, and may play an effective role in preventing this disease.

Keywords: training, angiogenesis, Quercetin, Myocardial infarction

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