Title : Four-dimensional imaging and quantification of gene expression in early developing zebrafish (Danio rerio) embryos.

Pub. Date : 2006 Apr

PMID : 16434501






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1 We applied the 4D system to study the effect of 100 microM cadmium exposure on shh expression. Cadmium sonic hedgehog signaling molecule a Danio rerio
2 In control zebrafish embryos, shh:GFP expression was detected at about 9 h post-fertilization (hpf) and increased steadily in the next 7 h, peaking at about 17 hpf and decreasing in the following 4 h. In the same time period, different shh expression volumes were observed in cadmium-treated and control embryos. Cadmium sonic hedgehog signaling molecule a Danio rerio
3 Embryos affected by cadmium-exposure demonstrated a down-regulation in shh expression. Cadmium sonic hedgehog signaling molecule a Danio rerio
4 The number of GFP-expressing cells measured by flow cytometry decreased, and expression of neurogenin-1, a downstream target of the shh signaling pathway, was down-regulated, providing additional supporting data on the effects of cadmium on shh. Cadmium sonic hedgehog signaling molecule a Danio rerio
5 The number of GFP-expressing cells measured by flow cytometry decreased, and expression of neurogenin-1, a downstream target of the shh signaling pathway, was down-regulated, providing additional supporting data on the effects of cadmium on shh. Cadmium sonic hedgehog signaling molecule a Danio rerio