Fig. 5

Toxicity testing of B. monnieri extract (10–1000 μg/ml) for 1 h on rat freshly isolated ventricular myocyte viability quantified by the trypan blue exclusion assay. Data are expressed as mean ± SEM (n = 3) and *p < 0.05, **p < 0.01 ***p < 0.001 for B. monnieri compared to control