This protocol demonstrates a fluorescence-based method to visualize the vasculature and to quantify its complexity in Xenopus tropicalis. Blood vessels can be imaged minutes after the injection of a fluorescent dye into the beating heart of an embryo after genetic and/or pharmacological manipulations to study cardiovascular development in vivo.
Ohk, J., Jung, H. Visualization and Quantitative Analysis of Embryonic Angiogenesis in Xenopus tropicalis. J. Vis. Exp. (123), e55652, doi:10.3791/55652 (2017).