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Temporal expression pattern of the insulin-like growth factor II and fibroblast growth factor transcripts in avian embryogenesis BABT
Gabriel,Jane Eyre; Alvares,Lúcia Elvira; Coutinho,Luiz Lehmann.
In this study, the abundance of IGF-II and bFGF transcripts was estimated in the chicken embryos using the competitive RT-PCR analysis. Significant enhancements in the abundance of IGF-II mRNA were observed at stages HH1 and 5, and a new accumulation in these levels was observed at stage HH18 in comparison to the basal levels. The abundance of bFGF mRNA increased significantly at stages HH18 and 20, followed by an upregulation in the expression of these transcripts at stage HH26. These findings provided important information about the temporal expression pattern of IGF-II and bFGF transcripts in the whole chicken embryos during in ovo development.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chicken embryos; Temporal expression; Competitive RT-PCR; Growth factors.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000500011
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Histological Description of Morphogenesis of the Gastroesophageal Mucosa of Gallus gallus domesticus (Linnaeus, 1758) International Journal of Morphology
Ventura,Adriana; do Nascimento,Aparecida Alves; dos Santos,Marcos Antônio José; Vieira-Lopes,Danielle Alcântara; Sales,Armando; Pinheiro,Nadja Lima.
The ontogenesis of the gastroesophageal mucosa involves morphological alterations related to its structure and the function of each segment. The present study describes the histogenesis of the mucus-secreting epithelium and glands of the esophagus, gizzard, and proventriculus of the chicken (Gallus gallus), and identifies alterations in the secretion pattern of glycosaminoglycans (GAG's). We analyzed 38 chicken embryos, processed the material collected following the histological routine, and then stained it with hematoxylin-eosin for the analysis of tissue structure and with Gomori's trichrome for the identification of conjunctive tissue and collagen fibers. We used the PAS histochemical technique for the analysis of neutral GAG's and the AB pH 2.5...
Tipo: Journal article Palavras-chave: Chicken embryos; Development; Glycosaminoglycans; Esophagus; Stomach.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400030
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