نتایج جستجو برای: cord blood expansion
تعداد نتایج: 887905 فیلتر نتایج به سال:
BACKGROUND Neonatal Natural Killer (NK) cells show functional impairment and expansion of a CD56 negative population of uncertain significance. METHODS NK cells were isolated from cord blood and from adult donors. NK subpopulations were identified as positive or negative for the expression of CD56 and characterized for expression of granzyme B and surface markers by multi-parameter flow cytom...
Background and Objective: Resistin is a novel adipokine which may play a role in insulin resistance. In this study we aimed to determine the cord blood resistin, leptin, insulin and maternal serum resistin levels during pregnancy and to investigate correlation between these metabolic hormones and also to evaluate their association with newborn growth indices. Materials and Methods: This study w...
Background: Entanglement of the umbilical cord around fetal neck has been reported to be associated with birth asphyxia. On the other hand, current evidence suggests that umbilical arterial pH analysis provides the most sensitive reflection of birth asphyxia. In this study we aimed to evaluate and compare the umbilical arterial hydrogen-ion concentration (pH) and to analyze the blood gases of n...
Background and Objective: Some changes in newborns growth indices are related to several risk factors; though, a distinct etiology is unknown. Due to the available evidence about highly concentrated levels of lead in our province particularly in comparison to non-contaminated regions, this study was designed to evaluate the relationship between lead levels of umbilical cord blood and newborns b...
The distribution of human TCR junctional region lengths shifts with age in both CD4 and CD8 T cells.
Several normal and pathological antigen-driven immune responses are associated with limited TCR usage. CDR3 sequence and to some extent length represent clonal markers which can be used to follow the course of an immune response. We investigated whether differences exist in the CDR3 length distribution in the CD4 versus CD8 populations which might reflect the HLA class restriction of the T cell...
Background: Previous studies have suggested the presence of a relationship between the increase of NRBC and the duration and intensity of asphyxia. The purpose of this study was to evaluate the relationship of fetal heart rate pattern and the number of NRBC's in umbilical cord blood sample at birth. Methods: We enrolled 322 pregnant women with healthy, term fetuses who referred to Mirza Koucha...
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