Figure 7.

Postprandial plasma PYY concentrations (picogram/milliliter) during the last experimental day, expressed separately for Experiments A (A) and B (C). The areas under the curve (AUC) for PYY concentrations in both experiments are expressed in (B,D). The AUC values (0–8 h after the last dose) were calculated using the trapezoidal rule. The values are means with SEM represented by vertical bars (n = 4–5). The significant differences are compared to the HF control group (-Δ-) in (A), to B. thetaiotaomicron group (-▲-) in (C), or between the indicated groups in (B,D), and marked with asterisks: **p < 0.01, *** p < 0.001 (two-way ANOVA for insulin concentrations and Student’s t-test for AUC). B. thet., Bacteroides thetaiotaomicron; HF, high-fat diet; LF, low-fat diet; PDX, polydextrose; PYY, peptide tyrosine tyrosine; SEM, standard error of the mean.