title: [Evolutionary and bone marrow recovery indicators in bone marrow transplantation after total body irradiation].
abstract: Oxidative stress and reticulocyte maturity index (RMI) were studied in 27 patients who underwent bone marrow transplantation (BMT). Plasmatic lipoperoxide levels of those patients with unfavorable evolution were significantly increased on days 12-14 post-transplant (median 1.83 microM, range 0.78-5.82) compared with preconditioning levels (median 1.05 microM, range 0.36-1.84) (p < 0.05). Patients with favorable evolution revealed significantly higher lipoperoxide levels during conditioning regime (median 1.42 microM, range 0.31-4.50) (p < 0.05). Starting from the 3rd post-transplant week a significant and continuous decrease was observed, with a median of 0.77 microM (range 0.21-1.48 p < 0.05) for the 3rd, and a median of 0.60 microM (range 0.11-1.48 for the 4th week (p < 0.01). A significant increase in total antioxidant activity was observed in the three patients who died up to the 35 days post-transplant. Recovery of bone marrow function was detected by RMI after a median time of 17 days (range 11-24) post-allogeneic transplantation. The threshold established for absolute neutrophil count was achieved after a median of 21 days (range 14-28) (p < 0.001). An increase of plasma lipoperoxides on days 12-14 post-transplant may be a predictive value of unfavourable evolution. RMI was the earlier indicator of engraftment in allogeneic BMT.
authors.affiliation: Laboratorio de Radiopatología, ARN (Autoridad Regulatoria Nuclear), Hospital Naval Pedro Mallo, Buenos Aires, Argentina.
authors.forename: Diana
authors.initials: D
authors.lastname: Dubner
authors.forename: Maŕia del R
authors.initials: Mdel R
authors.lastname: Pérez
authors.forename: Marcos
authors.initials: M
authors.lastname: Barboza
authors.forename: Miguel
authors.initials: M
authors.lastname: Sorrentino
authors.forename: Anibal
authors.initials: A
authors.lastname: Robinson
authors.forename: Pablo
authors.initials: P
authors.lastname: Gisone
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D001853:Bone Marrow / Q000378:metabolism / Q000502:physiology* / Q000528:radiation effects; D001854:Bone Marrow Cells; D016026:Bone Marrow Transplantation; D002648:Child; D005260:Female; D006801:Humans; D008054:Lipid Peroxides / Q000097:blood / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D009504:Neutrophils / Q000502:physiology; D018384:Oxidative Stress; D011184:Postoperative Period; D011237:Predictive Value of Tests; D011379:Prognosis; D017701:Reticulocyte Count; D012156:Reticulocytes / Q000502:physiology; D014182:Transplantation, Autologous; D014916:Whole-Body Irradiation
chemical_list: D008054:Lipid Peroxides