Placental Transfer
Mostrando 1-12 de 80 artigos, teses e dissertações.
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1. Screening, diagnosis and management of hypothyroidism in pregnancy: Number 10 – October 2022
Key points Pregnancy places a metabolic overload on the maternal thyroid, especially in the first trimester, mainly because of the demand imposed by the conceptus. The fetal thyroid becomes functionally mature only around pregnancy week 20. Until then, the fetus depends on the transfer of maternal thyroid hormones (THs). Thyroid hormones are essential for
Revista Brasileira de Ginecologia e Obstetrícia. Publicado em: 2022
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2. The effect of organic selenium in feeding of ewes in late pregnancy on selenium transfer to progeny
ABSTRACT The objective of this study was to determine the effect of supplemented organic selenium at different levels to concentrate feed of Norduz ewes in late pregnancy on maternal serum, placenta, colostrum, and offspring serum concentrations. This study was conducted using two-year-old 35 Norduz ewes. Ewes were randomly assigned to one of three dietary t
R. Bras. Zootec.. Publicado em: 2017-02
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3. Passive acquisition of anti-Staphylococcus aureus antibodies by newborns via transplacental transfer and breastfeeding, regardless of maternal colonization
OBJECTIVE: To investigate the transmission of anti-Staphylococcus aureus (Sa) IgG, IgG1 and IgG2 via placental transfer and the transfer of IgA via the colostrum according to maternal Sa carrier status at delivery. METHODS: We evaluated anti-Sa IgG, IgG1 and IgG2 in maternal and cord sera and IgA in colostrum from a case (n=49, Sa+) and a control group (n=
Clinics. Publicado em: 2016-12
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4. Acumulação de compostos organoclorados (PCBs, DDTs e HCB) em tecido hepático de delfinídeos (Cetacea, Mammalia) do Estado do Rio de Janeiro / Organochlorine compounds accumulation (PCBs, DDTs and HCB) in hepatic tissue of delphinids (Cetacea, Mammalia) from Rio de Janeiro State
Over the past decades the research on marine organisms contamination by organochlorine compounds (OCs) has been intensified, allied to the utilization of some species as sentinels of the environmental quality related to organic pollutants. Among these species, cetaceans stand out as animals that, between other characteristics, have great longevity, high lipi
Publicado em: 2011
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5. Transferência de anticorpos reativos com intiminas α, β, γ de Escherichia coli pela placenta e aleitamento materno: determinação quantitativa em soros de recém-nascidos e soros e colostros de suas mães / Transference of antibodies reactive with intimins α, β and γ of Escherichia coli by placenta and breastfeeding: quantitative determination in the sera of newborns and the colostrum and sera of their mothers
Intimina é uma adesina de natureza protéica das bactérias diarreiogênicas Escherichia coli enteropatogenica (EPEC) e enterohemorrágica (EHEC), capazes de induzir a lesão \ attaching e effacing\ em enterócitos. Os principais subtipos de intiminas de EPEC e EHEC prevalentes no Brasil são α, β e γ. Nosso objetivo foi investigar a transfer
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/04/2010
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6. Passive acquisition of protective antibodies reactive with Bordetella pertussis by the newborn via placental transfer and breastfeeding / Aquisição passiva de anticorpos protetores reativos com Bordetella pertussis pelo recém-nascido via transferência placentária e aleitamento materno
Pertussis is currently considered an important public health problem in developed countries. Although there is no evidence of an increase in the number of pertussis cases in our country, can not rule out the hypothesis of a future re-emergence of disease, as epidemiological data from some regions show an increase in incidence, indicating that probably there
Publicado em: 2010
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7. Placental transfer of Haemophilus influenzae type b antibodies in malnourished pregnant women
This study evaluated the vaccination response to Haemophilus influenzae type b (Hib) in malnourished pregnant women (MN), cord blood (CB) and in infants at two and six months of age for comparison with a control group (C). Twenty-eight malnourished pregnant women and 29 pregnant controls were immunized with conjugated Act-HIB® in the third trimester of preg
Brazilian Journal of Infectious Diseases. Publicado em: 2008-02
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8. Avaliação da transferência materno-infantil de anticorpos séricos e secretores dirigidos ao polissacarídeo da cápsula de Haemophilus influenzae tipo B (HIB) em amostras pré e pós-vacinais de mães com PRP conjugado ao toxóide tetânico (PRP-T). / Avaliation of maternal-infant transfer of seric and secretory antibodies reactive to capsule polysaccharides Haemophilus influenzae type b (Hib) in pre and post vaccine samples of immunized mothers in PRP conjugate with tetanic toxóide (PRP-T).
Introdução: O Haemophilus influenzae type b (Hib) é a primeira maior causa de meningites e pneumonias provocadas por bactérias encapsuladas. Trabalhos revelam que anticorpos maternos, séricos e secretores, podem proteger recém nascidos (RN) destes patógenos encapsulados e contribuem para a maturação do sistema imune do infante. Objetivo: O presente
Publicado em: 2008
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9. Transferência transplacentária de anticorpos anti-Streptococcus B nos recém-nascidos de termo e pré-termo / Placental transfer of anti-Streptococcus B antibodies in term and preterm newborn babies
O Streptococcus do Grupo B (EGB) é um dos principais agentes de infecção no período neonatal, sendo responsável por altos índices de morbimortalidade materno-fetal. Este estudo tem por objetivo avaliar a passagem transplacentária de anticorpos anti-Streptococcus B e imunoglobulina G em recém-nascidos de termo e pré-termo, bem como comparar seus nív
Publicado em: 2008
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10. Apoptose em placenta proveniente de bovinos clonados / Apoptosis in bovine cloned placenta
The study of placenta from somatic cell nuclear transfer pregnancy originated a new model of study after the commercial production of bovine nuclear transfer clones, this technique requires caesarean section, that allows collection of fetal membranes. Alterations as differences in the placentomes total number, size, villous trees, umbilical cord and new born
Publicado em: 2006
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11. Placental diffusing capacities at varied carbon monoxide tensions.
To test the hypothesis that carbon monoxide transfer across the placenta is, in part, a facilitated process, we have looked for evidence of saturation kinetics for carbon monoxide. In eight pregnant ewes, fetal to maternal carbon monoxide transfer was examined in a preparation in which the fetal side of the placenta was perfused with blood. The carboxyhemogl
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12. Fetal parathyroids are not required to maintain placental calcium transport
We used Hoxa3 knockout mice and other mouse models to study the role of the fetal parathyroids in fetal calcium homeostasis. Hoxa3-null fetuses lack parathyroid glands, and absence of parathyroid hormone (PTH) was confirmed with a rodent PTH immunoradiometric assay. The ionized calcium level of Hoxa3-null fetuses was significantly lower than that of wild-typ
American Society for Clinical Investigation.