نتایج جستجو برای: colony forming unit
تعداد نتایج: 531721 فیلتر نتایج به سال:
Techniques that allow the selective stimulation of the erythropoietin-responsive cell population in mice with suppressed multipotential hemopoietic stem cells were used to identify (1) the in vivo target cell transformed by Friend virus (FV) into a tumor colony-forming unit and (2) a target cell for FV replication in vivo. Plethoric mice with busulphan-induced reductions in stem cell population...
Reducing health care-associated urinary tract infection (UTI) is a National Patient Safety Goal. The purpose of this investigation was to establish a colony count threshold to predict clinically significant UTIs that develop in hospitalized patients. A total of 185 cases were reviewed sequentially by 2 physicians. The information extracted included subjective complaints, presence of an indwelli...
BACKGROUND In vitro colony-forming unit cell (CFU-C) assays are usually-used to detect the quantitative and qualitative features of haematopoietic stem cells (HSCs). We studies CFU-C assays in bone marrow samples from 365 consecutive subjects with newly-diagnosed myelodysplastic syndrome (MDS). Data were interrogated for associations with prognosis. METHODS CFU-C assays were performed accordi...
BACKGROUND Percoll and Ficoll density gradient media are widely used in the isolation of human mesenchymal stem cells (hMSCs) for research. However, the efficacy of the two methods in the isolation of hMSCs and their differentiation potentiality have not been evaluated. In this study, the ability of the two methods to isolate MSCs from human bone marrow was compared. METHODS Colony forming un...
Autologous bone marrow transplantation allows the use of high dose chemotherapy by obviating dose limiting myelosuppression. The pharmacology of high dose chemotherapy has been inadequately explored, yet this information is critical to determine the timing of marrow infusion and assure that engraftment is not compromised. We have used the Salmonella mutagenesis test (SMT) and colony forming uni...
The organization of the compartment of mesenchymal stem cells is still obscure. Two types of human stromal precursor cells are known. Both of them are analyzed in in vitro system: mesenchymal multipotent stromal cells (MMSC) and fibroblast colony forming units (CFU-F). The aim of this study was to compare the main characteristics of MMSC and CFU-F derived from the bone marrow of 24 healthy dono...
We have evaluated bone-marrow activity in the proximal femur of patients with corticosteroid-induced osteonecrosis and compared it with that of patients with osteonecrosis related to sickle-cell disease and with a control group without osteonecrosis. Bone marrow was obtained by puncture of the femoral head outside the area of necrosis and in the intertrochanteric region. The activity of stromal...
INTRODUCTION Irrigation dynamics and antibacterial activity determine the efficacy of root canal disinfection. Sonic or ultrasonic agitation of irrigants is expected to improve irrigation dynamics. This study examined the effects of microbubble emulsion (ME) combined with sonic or ultrasonic agitation on irrigation dynamics and reduction of biofilm bacteria within root canal models. METHODS T...
The objective of this study was to evaluate the effects of an alcohol diet on Streptococcus of the mutans group and on dental caries in the oral cavity of rats. Forty animals were divided into 3 groups according to the following liquid diets: 20% ethanol solution (Alcohol Group, AG), 27% sucrose solution (Isocaloric Group, IG), and water (Control Group, CG). After 56 days, samples were collecte...
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