Hyperbilirubinemia affects eye reflexes and swim behavior:(A) Turn of the eyes in response to light stimulation is displayed. Turn of the eye between t0 and t1 was measured as turn angle alpha. (B) Average turn angle of the eyes of larvae exposed to 3, 6, 9 and 15 µM doses of bilirubin is displayed. (C) Average swim distance of controls and larvae exposed to 9 µM bilirubin between 2 and 3 dpf at 4 and 6 dpf is displayed. Data are the mean ± SEM. (A″-C″) n = 20, 18, 22, 20, and 22 for control, 3, 6, 9, and 15 µM. (D) Directional swim behavior of the control and swirling swim behavior of the severely affected larvae are displayed.
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