Background. Dyspeptic patients tolerate smaller meal loads than healthy subjects, but it is not known whether and to what extent symptoms relate to abnormal homeostatic or hedonic components of perception. Methods. Parallel studies in patients with symptoms induced by meals (fulfilling Rome IV criteria of postprandial dyspepsia) and sex- and age-matched healthy subjects. Participants will be instructed to eat a standard dinner the day before, to consume a standard breakfast at home after overnight fast, and to report to the laboratory, where the test meal will be administered 4 h after breakfast. Studies will be conducted in a quiet, isolated room with participants sitting on a chair. Participants will ingest a probe meal up to the level of maximal satiation. The probe meal will be served stepwise (112 Kcal every 5 min). Perception of homeostatic (hunger/satiation, fullness) and hedonic (digestive well-being, mood) sensations will be measured at 5 min intervals 10 min before, during and 20 min after ingestion at 10 min intervals.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
42
The probe meal will be served in 112 Kcal portions (16 g white bread, 10 g cheese, 10 g jam, 3.25 g butter, and 50 mL orange juice) up to the level of maximal satiation.
Hospital Vall d'Hebron
Barcelona, Spain
Meal enjoyment
Amount of meal (Kcal) consumed up to the level of maximal digestive well-being measured on a - 5 (extremely unpleasant sensation) to + 5 scale (extremely pleasant sensation).
Time frame: 100 minutes
Change in digestive well-being induced by the probe meal
Change in well-being measured by 10 score scales during and after the probe meal.
Time frame: 1 day
Change in fullness sensation induced by the probe meal
Change in fullness sensation measured by 10 score scales during and after the probe meal.
Time frame: 1 day
Change in mood induced by the probe meal
Change in mood measured by 10 score scales during and after the probe meal.
Time frame: 1 day
Change in abdominal discomfort induced by the probe meal
Change in abdominal discomfort measured by 10 score scales during and after the probe meal.
Time frame: 1 day
Change in hunger/satiety induced by the probe meal
Change in hunger/satiety measured by 10 score scales during and after the probe meal.
Time frame: 1 day
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