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Clinical Trial
Journal Article
Research Support, Non-U.S. Gov't
Exercise training and endothelial progenitor cells in haemodialysis patients.
Journal of International Medical Research 2009 March
Haemodialysis patients have few endothelial progenitor cells (EPCs) and an unfavourable cardiovascular outcome. The effects on peripheral blood CD34(+) cells and EPCs of a 6-month walking exercise programme were studied. Thirty dialysis patients (20 males, age 67 +/- 12 years) were prescribed exercise (two daily 10-min home walking sessions at moderate intensity, group E, n = 16) or not prescribed exercise (control, group C, n = 14). On entry and after 6 months peripheral blood CD34(+) cells, EPCs (assessed as CD34(+) cells co-expressing AC133 and vascular endothelial growth factor receptor 2 [VEGFR2], and as endothelial colony-forming units [e-CFU]) and exercise capacity (6-min walking distance, 6MWD) were evaluated. In group E, 6MWD and e-CFU increased significantly during the study period, with no significant changes in CD34(+) or CD34(+) AC133(+) VEGFR2(+) cell numbers. The change in e-CFU was directly and significantly correlated to patient-reported training load. Group C showed no significant change in any variable. In haemodialysis patients, moderate-intensity exercise selectively increased the number of e-CFU.
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