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Postprandial profiles of CCK after high fat and high carbohydrate meals and the relationship to satiety in humans
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Gastroenterology/Hepatology.ORCID iD: 0000-0002-6979-9194
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2016 (English)In: Peptides, ISSN 0196-9781, E-ISSN 1873-5169, Vol. 77, 3-8 p.Article in journal (Refereed) Published
Abstract [en]

CONTEXT: CCK is understood to play a major role in appetite regulation. Difficulties in measuring CCK have limited the potential to assess its profile in relation to food-induced satiety. Improvements in methodology and progress in theoretical understanding of satiety/satiation make it timely for this to be revisited.

OBJECTIVE: First, examine how physiologically relevant postprandial CCK8/33(s) profiles are influenced by fat (HF) or carbohydrate (HCHO) meals. Second, to examine relationships between postprandial CCK and profiles of satiety (hunger/fullness) and satiation (meal size).

PARTICIPANTS AND DESIGN: Sixteen overweight/obese adults (11 females/5 males) participated in a randomised-crossover study (46 years, 29.8kg/m(2)) in a university research centre. Plasma was collected preprandially and for 180min postprandially. Simultaneously, ratings of hunger/fullness were tracked for 180min before an ad libitum lunch was provided.

RESULTS: CCK8/33(s) levels increased more rapidly and reached a higher peak following HF compared to HCHO breakfast (F(1,15)=14.737, p<0.01). Profiles of hunger/fullness did not differ between conditions (F(1,15)=0.505, p=0.488; F(1,15)=2.277, p=0.152). There was no difference in energy intake from the ad libitum meal (HF-3958 versus HCHO-3925kJ; t(14)=0.201, p=0.844). CCK8/33(s) profiles were not associated with subjective appetite during early and late phases of satiety; nor was there an association between CCK8/33(s) and meal size.

CONCLUSIONS: These results demonstrate CCK levels were higher after HF meal compared to HCHO isocaloric meal. There was no association between CCK levels and intensity of satiety, or with meal size. Under these circumstances, CCK does not appear to play a unique independent role in satiety/satiation. CCK probably acts in conjunction with other peptides and the action of the stomach.

Place, publisher, year, edition, pages
2016. Vol. 77, 3-8 p.
Keyword [en]
CCK; Satiety; Satiation; Eating behaviour; Appetite
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URN: urn:nbn:se:uu:diva-264767DOI: 10.1016/j.peptides.2015.09.010ISI: 000371264900002PubMedID: 26429068OAI: diva2:861478
EU, FP7, Seventh Framework Programme, 266408Novo Nordisk
Available from: 2015-10-16 Created: 2015-10-16 Last updated: 2016-09-21Bibliographically approved

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