Figure 1.

(a) PLS-DA score plot of the metabolic profiles obtained from 6 sham rats (■), 6 MI rats with no treatment (red diamond symbol), and 6 MI rats with SA-B treatment (blue triangle symbol). (R²X = 0.798, R²Y = 0.975, Q² = 0.858, A = 4, N = 18, K = 160); (b) Validation plot obtained from permutation test (n = 100). R² is the explained variance, and Q² is the predictive ability of the model.