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Circulation Journal
Vol. 70 (2006) No. 9 p. 1093-1098



Clinical Investigation

Background The purpose of this study was to determine whether treatment with granulocyte colony-stimulating factor (G-CSF), which mobilizes endothelial progenitor cells from bone marrow, can safely improve the clinical outcomes of patients with atherosclerotic peripheral artery disease (PAD). Methods and Results Thirty-nine patients with intractable PAD were randomly assigned to 3 groups: a negative control group (n=12) treated with conventional drug therapy; a positive control group (n=13) treated with conventional drug therapy plus bone marrow transplantation (BMT); and a G-CSF group (n=14) treated with conventional therapy plus subcutaneous injection of 2-5 μg/kg of recombinant human G-CSF once daily for 10 days. One month after treatment, subjective symptoms improved significantly in the G-CSF and BMT groups. Ankle-brachial pressure index and transcutaneous oxygen pressure increased significantly in the BMT and G-CSF groups, but no such improvements were seen in the group receiving conventional therapy alone. Conclusions G-CSF improves the clinical signs and symptoms of patients with intractable PAD to the same degree as BMT does. This noninvasive treatment may thus represent a useful new approach to managing the disease. (Circ J 2006; 70: 1093 - 1098)


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