Figure 6.

Contents of (A) caffeine, (B) 1,7-dimethylxanthine, and (C) diclofenac sodium salt (DF), 4′-hydroxydiclofenac (4′-OHDF), and 5-hydroxydiclofenac (5-OHDF) per one whole embryo or larva during exposure to each test compound. Each bar shows the mean value of three replicates. Each error bar shows the standard deviation of the replicates. Significant differences between two specific data points, as determined by a two-tailed t-test, are shown by asterisks (p < 0.05). Statistical analyses were performed only for the specific sets of data points shown by the asterisks.