title: [Factors influencing engraftment in hematological patients after human leukocyte antigen matched sibling allogeneic blood and marrow transplantation].
abstract: OBJECTIVE
  To investigate the factors influencing engraftment in patients with hematological diseases after human leukocyte antigen matched sibling allogeneic blood and marrow transplantation.
  
  
  METHODS
  One hundred and fifty-seven patients with hematological diseases who underwent allogeneic blood and marrow transplantation were enrolled in this study. The cell compositions in allografts were determined using multi-color flow cytometry.
  
  
  RESULTS
  The median time for the engraftment of neutrophil and platelet was 15 (11-25) days and 12 (7-78) days, respectively. Univariate analyses demonstrated that the source of allografts (P = 0.049) and allograft-infused cell doses of CD34+ cells (P = 0.001) was correlated with neutrophil engraftment. The duration from diagnosis to transplantation (P = 0.043) and allograft-infused cell doses of CD cells (P < 0.001) were correlated with platelet engraftment. Multivariate analysis showed that allograft-infused cell doses of CD34+ cells were associated with a rapid neutrophil recovery (RR: 1.222, 95% CI: 1.063-1.405, P = 0.005) and platelet reconstitution (RR: 1.228, 95% CI: 1.090-1.382, P = 0. 001), the duration from diagnosis to transplantation was associated with platelet recovery (RR: 1.000, 95% CI: 0.999-1.000, P = 0.065). A significantly faster recovery of neutrophils (14.5 d) and platelets (11 d) was found in patients infused > 2.45 x 10(6)/kg CD34+ cells as compared with those (16 d and 14 d) infused < or = 2.45 x 10(6)/kg CD34+ cells (P = 0.021, 0.010, respectively).
  
  
  CONCLUSIONS
  The absolute number of CD34+ cell in allografts was a main factor influencing the engraftment of neutrophil and platelet after HLA-matched sibling allogeneic blood and marrow transplantation. Duration from diagnosis to transplantation was another factor influencing engraftment of platelet.
authors: Peking University People's Hospital and Peking University Institute of Hematology, Beijing 100044, China.
authors: Ying-Jun
authors: YJ
authors: Chang
authors: Dai-Hong
authors: DH
authors: Liu
authors: Lan-Ping
authors: LP
authors: Xu
authors: Kai-Yan
authors: KY
authors: Liu
authors: Yu-Hong
authors: YH
authors: Chen
authors: Huan
authors: H
authors: Chen
authors: Xiang-Yu
authors: XY
authors: Zhao
authors: Xiao-Jun
authors: XJ
authors: Huang
mesh_terms: D000293:Adolescent; D000328:Adult; D018952:Antigens, CD34 / Q000378:metabolism; D016026:Bone Marrow Transplantation; D002452:Cell Count; D002648:Child; D005260:Female; D005434:Flow Cytometry; D006680:HLA Antigens; D006402:Hematologic Diseases / Q000276:immunology* / Q000628:therapy*; D018380:Hematopoietic Stem Cell Transplantation; D006801:Humans; D016131:Lymphocyte Subsets / Q000276:immunology; D008297:Male; D008875:Middle Aged; D019172:Transplantation Conditioning; D055815:Young Adult
chemical_list: D018952:Antigens, CD34; D006680:HLA Antigens