期刊
KIDNEY INTERNATIONAL
卷 74, 期 12, 页码 1603-1609出版社
ELSEVIER SCIENCE INC
DOI: 10.1038/ki.2008.495
关键词
dialysis; endothelial progenitor cells; cardiovascular disease; risk factors
资金
- Ministry of Health, Labour and Welfare [H19-Tyojyu-029]
- Research on Human Genome
- Ministry of Health, Labor and Welfare [H17-regeneration-010]
Circulating CD34-positive (CD34(+)) cells, a population that includes endothelial progenitor cells, are believed to contribute to vascular homeostasis. Here we determine the prognostic value of CD34(+) cell measurements in 216 chronic hemodialysis patients. A total of 43 cardiovascular events and 13 deaths occurred over an average 23 months follow-up in this cohort. A cutoff number for circulating CD34(+) cells was determined by receiver operating characteristic curve analysis to maximize the power of the CD34(+) cell count in predicting future cardiovascular events. Based on this, 93 patients were categorized as having low and 123 patients as having high numbers of CD34(+) cells, determined by flow cytometry at the time of enrollment. Both cumulative cardiovascular event-free survival and all-cause survival were significantly less in the group of patients with low numbers of CD34(+) cells. By multivariate analyses, a low level of circulating CD34(+) cells was an independent and significant predictor for both cardiovascular events and all-cause mortality. Our study shows that a reduced number of circulating CD34(+) cells is significantly associated with vascular risks and all-cause mortality in patients on chronic hemodialysis. These cells may be a useful biomarker.
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