SPS affected vessel formation in zebrafish embryos.

Tg (fli1a:EGFP) y1 transgenic zebrafish embryos (n = 30) were treated without (a,d) or with 1.0 (b,e) and 4.0 (c,f) mg/ml of SPS for 48 h, then embryos were observed for viability and gross morphological changes under a fluorescence microscope. Intersegmental vessel (ISV) and basket-like structure subintestinal vessel (SIV) were indicated by white arrows and dotted line circles, respectively.

Acknowledgments
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