Objective To define in vitro whether bone marrow mononuclear cells (BM MNC) secrete vascular endothelial growth factor (VEGF) and to evaluate the effect of BM MNC on endothelial cell proliferation.

目的：探讨体外培养骨髓细胞分泌促血管生长因子的能力及培养上清对内皮细胞增殖的影响。

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Objective: to investigate the effects of bone marrow stem cell mobilization on grafted vein bridge prognosis and intima proliferation of anastomosis.

目的：研究骨髓干细胞动员对移植静脉桥近期通畅率及吻合口内膜增生的影响。

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Murine bone marrow endothelial cell line could be established after long time culture and there is no significant reduction in their proliferation potency after 20 passages.

小鼠骨髓内皮细胞经过长期培养后，已转化为内皮细胞株，已传代20次，其增殖能力没有减退。

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