Fig. 6

Fig. 6 Fig. 6. Comparison of behavioral alterations in zebrafish treated with arecoline, arecaidine, guvacine, or guvacoline. (A) Principal component analysis (PCA) and (B) Hierarchical clustering and heat map analysis of behavioral alterations in adult zebrafish after exposed to four primary alkaloids from areca nuts, namely, arecoline (blue color), arecaidine (red color), guvacine (purple color) and guvacoline (orange color). In addition, a control group (green color) was also added.