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Linking immunity and hematopoiesis by bone marrow T cell activity BJMBR
Monteiro,J.P.; Bonomo,A..
Two different levels of control for bone marrow hematopoiesis are believed to exist. On the one hand, normal blood cell distribution is believed to be maintained in healthy subjects by an "innate" hematopoietic activity, i.e., a basal intrinsic bone marrow activity. On the other hand, an "adaptive" hematopoietic state develops in response to stress-induced stimulation. This adaptive hematopoiesis targets specific lineage amplification depending on the nature of the stimuli. Unexpectedly, recent data have shown that what we call "normal hematopoiesis" is a stress-induced state maintained by activated bone marrow CD4+ T cells. This T cell population includes a large number of recently stimulated cells in normal mice whose priming requires the presence of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: T cell; Hematopoiesis; Innate immunity; Adaptive immunity; Bone marrow; Immunological memory.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005001000004
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Plasma amino acids in pregnancy, placental intervillous space and preterm newborn infants BJMBR
Camelo Jr.,J.S.; Martinez,F.E.; Gonçalves,A.L.; Monteiro,J.P.; Jorge,S.M..
Plasma amino acid levels have never been studied in the placental intervillous space of preterm gestations. Our objective was to determine the possible relationship between plasma amino acids of maternal venous blood (M), of the placental intervillous space (PIVS) and of the umbilical vein (UV) of preterm newborn infants. Plasma amino acid levels were analyzed by ion-exchange chromatography in M from 14 parturients and in the PIVS and UV of their preterm newborn infants. Mean gestational age was 34 ± 2 weeks, weight = 1827 ± 510 g, and all newborns were considered adequate for gestational age. The mean Apgar score was 8 and 9 at the first and fifth minutes. Plasma amino acid values were significantly lower in M than in PIVS (166%), except for aminobutyric...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amino acid analysis; Placenta; Umbilical cord; Intervillous space; Maternal venous blood; Premature infants.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000700012
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Body composition measures of obese adolescents by the deuterium oxide dilution method and by bioelectrical impedance BJMBR
Resende,C.M.M.; Camelo Júnior,J.S.; Vieira,M.N.C.M.; Ferriolli,E.; Pfrimer,K.; Perdoná,G.S.C.; Monteiro,J.P..
The objectives of the present study were to describe and compare the body composition variables determined by bioelectrical impedance (BIA) and the deuterium dilution method (DDM), to identify possible correlations and agreement between the two methods, and to construct a linear regression model including anthropometric measures. Obese adolescents were evaluated by anthropometric measures, and body composition was assessed by BIA and DDM. Forty obese adolescents were included in the study. Comparison of the mean values for the following variables: fat body mass (FM; kg), fat-free mass (FFM; kg), and total body water (TBW; %) determined by DDM and by BIA revealed significant differences. BIA overestimated FFM and TBW and underestimated FM. When compared...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Adolescents; Obesity; Body composition; Bioelectrical impedance; Deuterium oxide dilution method.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011001100013
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Prolonged acceptance of skin grafts induced by B cells places regulatory T cells on the histopathology scene BJMBR
Langier,S.; Galvani,R.G.; Alves,A.P.G.; Fidelis,R.; Nunes,P.H.C.; Silva,M.H.; Castilho,L.R.; Monteiro,J.P.; Bonomo,A..
The participation of regulatory T (Treg) cells in B cell-induced T cell tolerance has been claimed in different models. In skin grafts, naive B cells were shown to induce graft tolerance. However, neither the contribution of Treg cells to B cell-induced skin tolerance nor their contribution to the histopathological diagnosis of graft acceptance has been addressed. Here, using male C57BL/6 naive B cells to tolerize female animals, we show that skin graft tolerance is dependent on CD25+ Treg cell activity and independent of B cell-derived IL-10. In fact, B cells from IL-10-deficient mice were able to induce skin graft tolerance while Treg depletion of the host inhibited 100% graft survival. We questioned how Treg cell-mediated tolerance would impact on...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Skin graft; Tolerance; B cells; Treg; Histopathology.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012001000009
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Prevalence of child malnutrition at a university hospital using the World Health Organization criteria and bioelectrical impedance data BJMBR
Pileggi,V.N.; Monteiro,J.P.; Margutti,A.V.B.; Camelo Jr.,J.S..
Malnutrition constitutes a major public health concern worldwide and serves as an indicator of hospitalized patients’ prognosis. Although various methods with which to conduct nutritional assessments exist, large hospitals seldom employ them to diagnose malnutrition. The aim of this study was to understand the prevalence of child malnutrition at the University Hospital of the Ribeirão Preto Medical School, University of São, Brazil. A cross-sectional descriptive study was conducted to compare the nutritional status of 292 hospitalized children with that of a healthy control group (n=234). Information regarding patients’ weight, height, and bioelectrical impedance (i.e., bioelectrical impedance vector analysis) was obtained, and the phase angle was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Child malnutrition; Prevalence; Bioelectrical impedance.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000300705
Registros recuperados: 5
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