Application of umbilical cord blood stem cells in preparation of preparation for treating respiratory diseases

The invention provides application of umbilical cord blood stem cells in preparation of a preparation for treating respiratory diseases, and belongs to the technical field of biology. The preparation method of the umbilical cord blood hematopoietic stem cells comprises the step of adding a stem cell separating medium into umbilical cord blood, wherein the stem cell separating medium comprises the following components in parts by weight: 0.1-0.5 part of tea saponin, 2-10 parts of hydroxymethyl cellulose, 4-8 parts of polysucrose and 0.1-1 part of ammonium chloride. Research results show that stem cell treatment is effective for respiratory diseases, and the new application of the cord blood hematopoietic stem cells has a good application prospect for treating the respiratory diseases. The umbilical cord blood mononuclear cell preparation is used for treating respiratory diseases, and blood type matching and HLA type matching are not needed. 本发明提供了脐带血干细胞用于制备治疗呼吸道疾病制剂的应用，属于生物技术领域。所述的脐带血造血干细胞的制备方法包括向脐带血中加入干细胞分离液，