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Sbragia,L.; Nassr,A.C.C.; Gonçalves,F.L.L.; Schmidt,A.F.; Zuliani,C.C.; Garcia,P.V.; Gallindo,R.M.; Pereira,L.A.V.. |
Changes in vascular endothelial growth factor (VEGF) in pulmonary vessels have been described in congenital diaphragmatic hernia (CDH) and may contribute to the development of pulmonary hypoplasia and hypertension; however, how the expression of VEGF receptors changes during fetal lung development in CDH is not understood. The aim of this study was to compare morphological evolution with expression of VEGF receptors, VEGFR1 (Flt-1) and VEGFR2 (Flk-1), in pseudoglandular, canalicular, and saccular stages of lung development in normal rat fetuses and in fetuses with CDH. Pregnant rats were divided into four groups (n=20 fetuses each) of four different gestational days (GD) 18.5, 19.5, 20.5, 21.5: external control (EC), exposed to olive oil (OO), exposed to... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Congenital diaphragmatic hernia; VEGFR; Rat model; Nitrofen; Lung development. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000200171 |
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Mataloun,M.M.G.B.; Leone,C.R.; Mascaretti,R.S.; Dohlnikoff,M.; Rebello,C.M.. |
Several factors are associated with bronchopulmonary dysplasia. Among them, hyperoxia and lung immaturity are considered to be fundamental; however, the effect of malnutrition is unknown. Our objective was to evaluate the effects of 7 days of postnatal malnutrition and hyperoxia on lung weight, volume, water content, and pulmonary morphometry of premature rabbits. After c-section, 28-day-old New Zealand white rabbits were randomized into four groups: control diet and room air (CA, N = 17), control diet and ≥95% O2 (CH, N = 17), malnutrition and room air (MA, N = 18), and malnutrition and ≥95% O2 (MH, N = 18). Malnutrition was defined as a 30% reduction of all the nutrients provided in the control diet. Treatments were maintained for 7 days, after which... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Postnatal malnutrition; Hyperoxia; Lung development; Rabbit. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000700004 |
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