The structural formula of CBG is shown in Figure 1(A). The via- bility of NB4 and NB4-R1 cells was first detected after 12, 24, and 48 h of CBG treatment. Notably, CBG inhibited the viabilityof NB4 and NB4-R1 cells in a time- and dose-dependent manner (Figure 1(B,C)). CBG (20, 40, and 60 nM) was co-incubated with NB4 and NB4-R1 cells for 24 h, resulting in an increase in LDH release (Figure 1(D,E)). Furthermore, CBG induces myocardial toxicity (Xiong et al. 2019). However, we found that CBG had no significant effect on the myocardial cell line (H9C2 cells) after 24 h of treatment at CBG concentrations of 0–60 nM (Figure 1(F)).