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化疗是目前治疗小儿急性白血病的主要手段 ,但因其毒副作用较大 ,常常造成外周白细胞大量杀伤及骨髓抑制 ,在正常造血重建之前 ,患儿常因贫血、出血、感染及胃肠道反应而被迫推迟或中断治疗。脐血富含造血干细胞及多向、定向造血祖细胞和多种造血活性物质〔1〕。本研究应用自制
Chemotherapy is currently the main treatment of children with acute leukemia, but because of its toxic side effects, often causing massive peripheral leukocyte killing and bone marrow suppression, before normal hematopoietic reconstruction, children often due to anemia, bleeding, infection and gastrointestinal reactions Forced to postpone or discontinue treatment. Umbilical cord blood-rich hematopoietic stem cells and multi-directional, hematopoietic progenitor cells and a variety of hematopoietic substances [1]. This study is self-made