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目的对近年来国内在脐血实验和临床研究的某些方面进行分析，以展望其在放射病临床应用前景。方法对国内在脐血方面研究的成果资料进行综述。结果脐血含有丰富的造血干／祖细胞，淋巴细胞免疫活性低，在适宜条件下有很强的体外扩增能力，具有来源易得，采集方便等优点。结论鉴于脐血诸多优点，其临床应用前景十分广阔，在放射病临床应用将大有希望
OBJECTIVE To analyze some aspects of cord blood experiments and clinical studies in recent years in order to prospect its clinical application in radiotherapy. Methods The domestic research results in umbilical cord blood were reviewed. Results Umbilical cord blood was rich in hematopoietic stem / progenitor cells, with low immunocompetence of lymphocytes and strong ability of in vitro expansion under appropriate conditions. It had the advantages of easy availability and convenient collection. Conclusion Given the many advantages of umbilical cord blood, its clinical application prospects are very broad and clinical application of radiotherapy will be promising