Figure 3.
Effect of isoproterenol in the presence of genistein on heart rate in zebrafish embryos. The zebrafish embryos at 24 h post-fertilization were exposed to isoproterenol (Vehicle, 1 × 10−6 M, 10 × 10−6 M, 100 × 10−6 M) in the presence of genistein (0.5 × 10−4 M). In the presence of genistein, isoproterenol (10 × 10−6 M, 100 × 10−6 M) increased heart rate significantly at 30 h after treatment. Data are expressed as mean ± SD. Values of each group with identical letters in each panel were not significantly different (p > 0.05).