TY - JOUR
T1 - Effect of oral or intragastric delivery of the bitter tastant quinine on food intake and appetite sensations
T2 - a randomised crossover trial
AU - Klaassen, Tim
AU - Keszthelyi, Daniel
AU - Alleleyn, Annick M. E.
AU - Wilms, Ellen
AU - Bast, Aalt
AU - Masclee, Adrian A. M.
AU - Troost, Freddy J.
N1 - Funding Information:
This research received no specific grant from any funding agency, commercial or not-for-profit sectors. Affiliation 1 is supported by the Province of Limburg, The Netherlands.
Publisher Copyright:
© 2020 The Author(s). Published by Cambridge University Press on behalf of The Nutrition Society.
PY - 2021/1/14
Y1 - 2021/1/14
N2 - Stimulation of gastrointestinal taste receptors affects eating behaviour. Intraduodenal infusion of tastants leads to increased satiation and reduced food intake, whereas intraileal infusion of tastants does not affect eating behaviour. Currently, it is unknown whether oral- or intragastric administration of tastants induces a larger effect on eating behaviour. This study investigated the effects of oral- and/or intragastric administration of quinine on food intake, appetite sensations and heart rate variability (HRV). In a blinded randomised crossover trial, thirty-two healthy volunteers participated in four interventions with a 1-week washout: oral placebo and intragastric placebo (OPGP), oral quinine and intragastric placebo (OQGP), oral placebo and intragastric quinine (OPGQ) and oral quinine and intragastric quinine (OQGQ). On test days, 150 min after a standardised breakfast, subjects ingested a capsule containing quinine or placebo and were sham-fed a mixture of quinine or placebo orally. At 50 min after intervention, subjects received an ad libitum meal to measure food intake. Visual analogue scales for appetite sensations were collected, and HRV measurements were performed at regular intervals. Oral and/or intragastric delivery of the bitter tastant quinine did not affect food intake (OPGP: 3273 center dot 6 (sem 131 center dot 8) kJ, OQGP: 3072 center dot 7 (sem 132 center dot 2) kJ, OPGQ: 3289 center dot 0 (sem 132 center dot 6) kJ and OQGQ: 3204 center dot 1 (sem 133 center dot 1) kJ, P = 0 center dot 069). Desire to eat and hunger decreased after OQGP and OPGQ compared with OPGP (P <0 center dot 001 and P <0 center dot 05, respectively), whereas satiation, fullness and HRV did not differ between interventions. In conclusion, sole oral sham feeding with and sole intragastric delivery of quinine decreased desire to eat and hunger, without affecting food intake, satiation, fullness or HRV.
AB - Stimulation of gastrointestinal taste receptors affects eating behaviour. Intraduodenal infusion of tastants leads to increased satiation and reduced food intake, whereas intraileal infusion of tastants does not affect eating behaviour. Currently, it is unknown whether oral- or intragastric administration of tastants induces a larger effect on eating behaviour. This study investigated the effects of oral- and/or intragastric administration of quinine on food intake, appetite sensations and heart rate variability (HRV). In a blinded randomised crossover trial, thirty-two healthy volunteers participated in four interventions with a 1-week washout: oral placebo and intragastric placebo (OPGP), oral quinine and intragastric placebo (OQGP), oral placebo and intragastric quinine (OPGQ) and oral quinine and intragastric quinine (OQGQ). On test days, 150 min after a standardised breakfast, subjects ingested a capsule containing quinine or placebo and were sham-fed a mixture of quinine or placebo orally. At 50 min after intervention, subjects received an ad libitum meal to measure food intake. Visual analogue scales for appetite sensations were collected, and HRV measurements were performed at regular intervals. Oral and/or intragastric delivery of the bitter tastant quinine did not affect food intake (OPGP: 3273 center dot 6 (sem 131 center dot 8) kJ, OQGP: 3072 center dot 7 (sem 132 center dot 2) kJ, OPGQ: 3289 center dot 0 (sem 132 center dot 6) kJ and OQGQ: 3204 center dot 1 (sem 133 center dot 1) kJ, P = 0 center dot 069). Desire to eat and hunger decreased after OQGP and OPGQ compared with OPGP (P <0 center dot 001 and P <0 center dot 05, respectively), whereas satiation, fullness and HRV did not differ between interventions. In conclusion, sole oral sham feeding with and sole intragastric delivery of quinine decreased desire to eat and hunger, without affecting food intake, satiation, fullness or HRV.
KW - Bitter tastants
KW - Food intake
KW - Appetite sensations
KW - Oral sham feeding
KW - Intragastric administration
KW - HEART-RATE-VARIABILITY
KW - PHASE INSULIN-RELEASE
KW - ENERGY-INTAKE
KW - ILEAL BRAKE
KW - CHOLECYSTOKININ
KW - SATIETY
KW - METAANALYSIS
KW - EXPRESSION
KW - RESPONSES
KW - GUSTDUCIN
U2 - 10.1017/S0007114520002536
DO - 10.1017/S0007114520002536
M3 - Article
C2 - 32660667
SN - 0007-1145
VL - 125
SP - 92
EP - 100
JO - British Journal of Nutrition
JF - British Journal of Nutrition
IS - 1
ER -