title: [Effect of the number of CD34+CD38+ cells in cord blood on hematopoietic reconstitution in patients with acute leukemia after umbilical cord blood transplantation].
abstract: The objective of this research was to explore whether the number of CD34(+)CD38(+) cells infused affects hematopoietic reconstitution after cord blood transplantation. The number of CD34(+)CD38(+) cells in cord blood was analysed with flow cytometry after freezethawing. The body weight and time for neutrophil and platelet recovery were measured in 20 children with acute leukemia. The results showed that the median number of CD34(+)CD38(+) cells infused was 29.47 (9.85 - 325.71) x 10(4)/kg. A median time for neutrophil recovery (> 5 x 10(8)/L) in 20 patients was 18.5 (11 - 32) days, and time for platlet recovery (> 2 x 10(10)/L) in 19 of 20 patients was 45 (12 - 118) days. The number of CD34(+)CD38(+) cells infused correlated with time to neutrophil and platelet recovery (r = -0.577, P < 0.01 and r = 0.503, P < 0.05, respectively). In conclusion, the number of CD34(+)CD38(+) cells infused is correlated with the time for hematologic recovery.
authors.affiliation: Guangzhou Maternal-Neonatal Hospital, Guangzhou Cord Blood Bank, Guangzhou 510180, China.
authors.forename: Shao-Ling
authors.initials: SL
authors.lastname: Gu
authors.forename: Can
authors.initials: C
authors.lastname: Liao
authors.forename: Shao-Qing
authors.initials: SQ
authors.lastname: Wu
authors.forename: Jin-Song
authors.initials: JS
authors.lastname: Chen
authors.forename: Zun-Peng
authors.initials: ZP
authors.lastname: Xu
authors.forename: Bin
authors.initials: B
authors.lastname: Liu
mesh_terms: D036541:ADP-ribosyl Cyclase / Q000032:analysis*; D051997:ADP-ribosyl Cyclase 1; D000293:Adolescent; D015703:Antigens, CD / Q000032:analysis*; D018952:Antigens, CD34 / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D005312:Fetal Blood / Q000166:cytology* / Q000637:transplantation*; D006410:Hematopoiesis; D018380:Hematopoietic Stem Cell Transplantation / Q000379:methods*; D006801:Humans; D015470:Leukemia, Myeloid, Acute / Q000097:blood / Q000628:therapy*; D008562:Membrane Glycoproteins; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000097:blood / Q000628:therapy*
chemical_list: D015703:Antigens, CD; D018952:Antigens, CD34; D008562:Membrane Glycoproteins; D036541:ADP-ribosyl Cyclase; C498154:CD38 protein, human; D051997:ADP-ribosyl Cyclase 1