All analyses were performed at 36 hpf. Embryos were exposed to the following compounds in fish facility water from 10 hpf to 36 hpf17 (link)45 (link): 10 μM PGE2 (Sigma), 10 μM Indomethacin (Sigma); 0.5 μM Forskolin (Abcam, ab120058), 0.5 μM H89 (Abcam, ab120341), 20 μM Arachidonic acid (Sigma, A9673). DMSO carrier content was at 0.1%. Equivalent amount of DMSO was added to the media as control. For PGG2 (0.1 mg/ml, Cayman, 17010) and PGH2 (0.1 mg/ml, Santa Cruz, sc201266), embryos were injected with these chemicals in DMSO at the bud stage46 .
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