Resumen

GAGLIARDI, Juan et al. Assessment of Plasmatic Levels of Endothelial Progenitor Cells in Patients with Chronic Coronary Disease. Rev. argent. cardiol. [online]. 2007, vol.75, n.6, pp.429-435. ISSN 1850-3748.

Background Exercise is useful for patients with coronary artery disease, and it works as a stimulus for the development of collateral circulation, which could be the result of an increase in the production and circulation of endothelial progenitor cells. Objective The objective of this study was to assess the effect of programmed exercise on the production and number of circulating endothelial progenitor cells in patients with chronic and stable coronary disease. Material and Methods We conducted a prospective, randomized, controlled and open study that included 18 patients (8 in the exercise group and 10 in the control group) with demonstrated chronic stable angina, < 75 years. Patients eligible should not have participated in programmed exercise groups within the last 3 months. Progenitor cells were determined by flow cytometry using marked monoclonal antibodies CD45-FITC, CD34-FITC y CD133/1-PE. Results After 1 month of programmed physical activity, CD45 level did not show any significant change in the control group (0.724±0.256 vs 0.765±0.216 [mean ± SE each 100,000 events]), whereas it increased from basal levels of 0.497±0.161 to 2.265±1.003 in the exercise group, though this change was not statistically significant. Analyzing CD34 levels, an increase from 0.196±0.086 to 0.235±0.063 was seen in the control group (p = NS). This increase was greater in the exercise group: 0.220±0.078 to 0.844±0.172 (p=0.0046; p=0.0092 vs control group). Conclusions In patients with coronary artery disease, programmed exercise promotes an increase in the level of circulating progenitor cells. Its persistent stimulus could be the basis of a greater development of collateral circulation.

Palabras clave : Coronary Disease; Angina Pectoris; Stem Cells; Exercise.

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