Christiane Vermylen

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The clinical phenotype of interleukin 12 receptor ␤ 1 chain (IL-12R ␤ 1) deficiency and the function of human IL-12 in host defense remain largely unknown, due to the small number of patients reported. We now report 41 patients with complete IL-12R ␤ 1 deficiency from 17 countries. The only opportunistic infections observed, in 34 patients, were of(More)
Fifty patients affected by sickle cell anaemia underwent transplantation of HLA-identical haematopoietic stem cells (bone marrow, 48; cord blood, 2). Two groups of patients were considered for transplantation. Group 1 included 36 permanent residents of a European country who, retrospectively, met the inclusion criteria accepted at a consensus conference(More)
Five children with severe sickle cell anaemia underwent an HLA compatible allogeneic bone marrow transplantation. In four children the engraftment was rapid and sustained. The fifth child rejected the bone marrow graft and required a second bone marrow transplantation 62 days after the first one. The outcome was then uneventful. In all cases there was(More)
Children with severe chronic hemolytic anemia or congenital erythroblastopenia are transfusion dependent. Long-term transfusion therapy prolongs life but results in a toxic accumulation of iron in the organs. The human body cannot actively eliminate excess iron. Therefore, the use of a chelating agent is required to promote excretion of iron. So far, iron(More)
BACKGROUND The prognosis of patients with relapses of ETV6/RUNX1-positive acute lymphoblastic leukemia remains to be evaluated, particularly with regards to the frequency of late relapses. We performed a long-term, follow-up retrospective study to address the outcome of patients with ETV6/RUNX1-positive leukemia relapses. DESIGN AND METHODS Among the 713(More)
In a double-blind study, hepatitis-B immunoglobulin significantly protected patients in a haemodialysis unit against the development of HBs antigenaemia, compared to control patients receiving normal human immunoglobulin (p less than 0-01). Injections were given at the beginning and after 6 months, and observations extended over 16 months. Analysis of(More)
We investigated prospectively factors influencing the safety of hematopoietic stem cell (HSC) collection in 453 pediatric donors. The children in the study donated either BM or peripheral blood stem cells (PBSCs) according to center policy. A large variability in approach to donor issues was observed between the participating centers. Significant(More)
Peripheral blood leukocyte (PBL) cultures from only 37% of MS patients produced detectable HuIFN-gamma in response to ConA as opposed to 85% of the cultures derived from normal blood donors. However, the yields in patient-derived cultures that were responsive, were not lower than those in cultures from controls. Production of HuIFN-alpha after stimulation(More)
One hundred five patients with MS were divided into three groups matched for age, sex, and disability, and treated with either placebo, transfer factor prepared from leukocytes of random donors, or transfer factor from leukocytes of family members living with the patients. There were no differences in the three treatment groups for changes in disability,(More)