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Oral Stimulation Influences Postprandial Triacylglycerol Concentrations in Humans: Nutrient Specificity

Purdue University, West Lafayette, Indiana

View larger version (22K): [in a new window]   Fig. 1. Mean change of serum TAG concentration from baseline. Letters indicate time points where TAG concentrations are significantly different from baseline. The gastrointestinal lipid load was given immediately prior to the first blood collection (minute 0). Oral stimulation occurred from minute 0 to 110. Oral stimuli: SFA = butter, UFA = unsaturated margarine, CHO = jelly, UFA + CHO = unsaturated margarine + jelly, Veh = vehicle and NO = no oral stimulus.

View larger version (21K): [in a new window]   Fig. 2. Mean ± SEM maximum change of postprandial triacylglycerol concentration. Significant differences across treatments are indicated by dissimilar letters at each time point.

View larger version (22K): [in a new window]   Fig. 3. Mean change of serum insulin concentration from baseline. Letters indicate time points where insulin concentrations are significantly different from baseline. The gastrointestinal lipid load was given immediately prior to the first blood collection (minute 0). Oral stimulation occurred from minute 0 to 110. Oral stimuli: SFA = butter, UFA = unsaturated margarine, CHO = jelly, UFA + CHO = unsaturated margarine + jelly, Veh = vehicle, and NO = no oral stimulus.

View larger version (16K): [in a new window]   Fig. 4. Hunger ratings were assessed using a 10 cm visual analog scale at -15 (before capsule ingestion), 0 (after capsule ingestion), 110 (after orosensory stimulation) and at 440 (end of session) minutes. Subjects were asked "how hungry do you feel right now?". Oral stimulation occurred from minute 0 to 110. Oral stimuli: SFA = butter, UFA = unsaturated margarine, CHO = jelly, UFA + CHO = unsaturated margarine + jelly, Veh = vehicle and NO = no oral stimulus.