Oxygen profile in zebra fish embryo (Danio rerio) elucidated by theory and experiment

Oxygen profile in zebra fish embryo (Danio rerio) elucidated by theory and experiment Animal Biology , Vol. 53, No. 4, pp. 339-346 (2003) Ó Koninklijke Brill NV, Leiden, 2003. Also available online - www.brill.nl Oxygen proŽ le in zebra Ž sh embryo ( Danio rerio ) elucidated by theory and experiment SANDER KRANENBARG ¤ , JOS G.M. VAN DEN BOOGAART, JOHAN L. VAN LEEUWEN Experimental Zoology Group, WIAS, Wageningen University, Marijkeweg 40, 6709 PG Wageningen, The Netherlands Abstract —We present a numerical-experimental diffusion study in which we elucidate the spatial oxygen proŽ le around and inside a zebra Ž sh embryo in the pre-circulation stage (24-28 hpf). Lowest oxygen partial pressures are found in the head with a gradient of posteriorly increasing pressure along the midline of the embryo. Furthermore, this study shows the yolk mass to have a relatively high oxygen permeability as compared to the surrounding medium and the respiring tissue. The oxygen permeability of the respiring tissue in this stage is close to that of water. Knowledge of the details of the oxygen distribution are important for an understanding of vasculogenesis and angiogenesis, since oxygen levels in uence the expression of endothelial growth factors. Keywords : angiogenesis; Danio ; micro-electrode; numerical model; oxygen; vasculogenesis. INTRODUCTION Animals without a http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Animal Biology Brill

Oxygen profile in zebra fish embryo (Danio rerio) elucidated by theory and experiment

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Publisher
Brill
Copyright
© 2003 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
1570-7555
eISSN
1570-7563
D.O.I.
10.1163/157075603322556256
Publisher site
See Article on Publisher Site

Abstract

Animal Biology , Vol. 53, No. 4, pp. 339-346 (2003) Ó Koninklijke Brill NV, Leiden, 2003. Also available online - www.brill.nl Oxygen proŽ le in zebra Ž sh embryo ( Danio rerio ) elucidated by theory and experiment SANDER KRANENBARG ¤ , JOS G.M. VAN DEN BOOGAART, JOHAN L. VAN LEEUWEN Experimental Zoology Group, WIAS, Wageningen University, Marijkeweg 40, 6709 PG Wageningen, The Netherlands Abstract —We present a numerical-experimental diffusion study in which we elucidate the spatial oxygen proŽ le around and inside a zebra Ž sh embryo in the pre-circulation stage (24-28 hpf). Lowest oxygen partial pressures are found in the head with a gradient of posteriorly increasing pressure along the midline of the embryo. Furthermore, this study shows the yolk mass to have a relatively high oxygen permeability as compared to the surrounding medium and the respiring tissue. The oxygen permeability of the respiring tissue in this stage is close to that of water. Knowledge of the details of the oxygen distribution are important for an understanding of vasculogenesis and angiogenesis, since oxygen levels in uence the expression of endothelial growth factors. Keywords : angiogenesis; Danio ; micro-electrode; numerical model; oxygen; vasculogenesis. INTRODUCTION Animals without a

Journal

Animal BiologyBrill

Published: Jan 1, 2003

Keywords: NUMERICAL MODEL; OXYGEN; MICRO-ELECTRODE; DANIO; VASCULOGENESIS; ANGIOGENESIS

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