Histochemical study of the definitive erythropoietic foci in the chicken yolk sac

Gen Niimi, Nobuteru Usuda, Masanori Shinzato, Chiyuki Kaneko, Yoichi Nagamura, Jaime Pereda

研究成果: Article査読

5 被引用数 (Scopus)

抄録

It is well known that avian yolk sac is involved in both primitive and definitive erythropoiesis during embryonic development. Definitive erythropoiesis is first detected at about 4-5 days incubation and its maximum activity is reached between day 10 and 15 of incubation, ending between days 18 and 20 of incubation. We confirmed the definitive erythropoietic foci in the chicken yolk sac throughout the 5th to 19th day of incubation by histochemical light and electron microscopy. The definitive erythropoietic foci were observed in the yolk sac endodermal layer from day 5 until day 19, just before hatching. Ultrastructurally, definitive erythropoietic foci were observed extravascularly in the yolk sac endodermal cell layer in direct contact with the vitellolysis zone. These findings provide a basis for clarifying definitive erythropoiesis in vertebrates.

本文言語English
ページ(範囲)9-16
ページ数8
ジャーナルItalian Journal of Anatomy and Embryology
113
1
出版ステータスPublished - 01-2008

All Science Journal Classification (ASJC) codes

  • 解剖学
  • 胎生学

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