Fig.6

Arteriovenous difference of metabolites across the heart. Data are presented as mean ± standard error of mean (SEM). Mean difference of lactate, oxygen, glucose and free fatty acids across the heart after two hours of control and two hours of lactate infusion, respectively. Red circles: arterial blood samples, blue circles: coronary sinus blood samples, black circles: arterial versus coronary sinus difference. FFA = free fatty acids. Horizontal black lines above data sets mark significant differences. ***indicates P < 0.001, **indicates P < 0.01, *indicates P < 0.05