نتایج جستجو برای: cord blood stem cell transplantation
تعداد نتایج: 2459825 فیلتر نتایج به سال:
Hematopoietic stem-cell transplantation (HSCT) refers to a procedure in which hematopoietic stem cells are infused to restore bone marrow function in cancer patients who receive bone-marrowtoxic doses of cytotoxic drugs, with or without whole body radiotherapy. Bone marrow stem cells may be obtained from the transplant recipient (ie, autologous HSCT) or from a donor (ie, allogeneic HSCT). They ...
Stem cells are undifferentiated self regenerating multi potential cells. There are three types of stem cells categories by the ability to form after cells and correlated with the body’s development process. Totipotent: these stem cells can form an entire organism such as fertilized egg. Ploripotent: ploripotent cells are those that can form any cell in the body but cannot form an entire organ...
umbilical cord blood (ucb) as a source of hematopoietic stem/progenitor cells (hspcs) used for umbilical cord blood transplantation (ucbt). the main obstacle in application of this source as an appropriate source of hspcs is low volume of this product. so ex vivo expansion of these cells in a microenvironment which mimic body condition is important. in current study we designed biocompatible mi...
introduction: in 1989, the first successful umbilical cord blood transplantations (ucbts) was reported in a boy with fanconi's anemia, using umbilical cord (ucb) of his hla matched sister. cord blood transplantation is a good substitute for bone marrow or peripheral blood transplantation especially for children and small body size adults. methods: between 1998 and 2007 ,14 children(10 boys and ...
It took exactly 100 years from the original discovery of the blood for-mation within the bone marrow until the first successful clinical bone marrow transplantation has been performed. Today, the transplantation of hematopoieticstem cells from various sources, such as bone marrow, mobilized stem cells aswell as umbilical cord blood has become a routine procedure, reaching currently<...
Abstract Background B cells play an important role in the immune system due to production of the immunoglobulin and secreting several cytokines. It has been shown that B cells produced successfully in the presence of stem cell factor (SCF) and Flt3 ligand (Flt3L). IL2, IL7, and IL15 cytokines as -common family have an essential cytokines may support either synergistically or in an additive m...
Background The aim of this study was the ex vivo expansion of Umbilical Cord Blood hematopoietic stem cells on biocompatible nanofiber scaffolds. Materials and Methods CD133+ hematopoietic stem cells were separated from umbilical cord blood using MidiMacs (positive selection) system by means of monocolonal antibody CD133 (microbeads) subsequently, flowcytometry method was done to asses...
OBJECTIVE We describe the relation between the clamping time and blood volume collected, plus two enrichment systems for CD34+ stem cells from umbilical cord blood, to achieve an excellent recovery of cells with a high proliferative ability and bone marrow reconstitution. METHOD After cord blood collection by an obstetrician, stem cell purification has been performed either with a combination...
During last ten years, over 4000 umbilical cord blood transplantations have been performed worldwide. The interest in this modality of transplantation has been growing as this provides easy access to an alternative source of stem cells for treating cancer and serious genetic disorders with otherwise fatal outcome or immense morbidity. Umbilical cord blood is a commonly discarded source of usefu...
BACKGROUND Hemorrhagic cystitis is a common cause of morbidity after allogeneic stem cell transplantation, frequently associated with BK virus infection. We hypothesized that patients with positive BK viruria before unrelated or mismatched related donor allogeneic hematopoietic stem cell transplantation have a higher incidence of hemorrhagic cystitis. DESIGN AND METHODS To test this hypothesi...
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