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Titolo:
Effect of meal viscosity and nutrients on satiety, intragastric dilution, and emptying assessed by MRI
Autore:
Marciani, L; Gowland, PA; Spiller, RC; Manoj, P; Moore, RJ; Young, P; Fillery-Travis, AJ;
Indirizzi:
Univ Nottingham Hosp, Queens Med Ctr, Div Gastroenterol, Nottingham NG7 2UH, England Univ Nottingham Hosp Nottingham England NG7 2UH tingham NG7 2UH, England Sch Phys & Astron, Magnet Resonance Ctr, Nottingham NG7 2RD, England Sch Phys & Astron Nottingham England NG7 2RD Nottingham NG7 2RD, England Inst Food Res, Norwich NR4 7UA, Norfolk, England Inst Food Res Norwich Norfolk England NR4 7UA h NR4 7UA, Norfolk, England
Titolo Testata:
AMERICAN JOURNAL OF PHYSIOLOGY-GASTROINTESTINAL AND LIVER PHYSIOLOGY
fascicolo: 6, volume: 280, anno: 2001,
pagine: G1227 - G1233
SICI:
0193-1857(200106)280:6<G1227:EOMVAN>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
GASTRIC DISTENSION; GUAR GUM; FOOD; CHOLECYSTOKININ; PERCEPTION; DYSPEPSIA; HUNGER; ANTRUM; HUMANS;
Keywords:
stomach; polysaccharide gum; abdominal imaging; echo-planar magnetic resonance imaging;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Spiller, RC Univ Nottingham Hosp, Queens Med Ctr, Div Gastroenterol, Nottingham NG7 2UH, England Univ Nottingham Hosp Nottingham England NG7 2UH 2UH, England
Citazione:
L. Marciani et al., "Effect of meal viscosity and nutrients on satiety, intragastric dilution, and emptying assessed by MRI", AM J P-GAST, 280(6), 2001, pp. G1227-G1233

Abstract

The relationship between the intragastric distribution, dilution, and emptying of meals and satiety was studied using noninvasive magnetic resonance imaging techniques in 12 healthy subjects with four polysaccharide test meals of varying viscosity and nutrient content as follows: 1) low-viscosity nonnutrient, 2) low-viscosity nutrient, 3) high-viscosity nonnutrient, and 4) high-viscosity nutrient. Increasing the nutrient content of the high-viscosity meal delayed gastric emptying from 46 +/- 9 to 76 +/- 6 min (P < 0.004), whereas increasing viscosity had a smaller effect. The volume of secretions within the stomach 60 min after ingestion was higher for the high-viscosity nutrient meal (P < 0.04). A simple model to calculate the total volume of secretion added to the test meal is presented. Color-coded dilution map images showed the heterogeneous process of progressive gastric dilution of high-viscosity meals, whereas low- viscosity meals were uniformly diluted. Fullness was found to be linearly related to total gastric volumes for the nutrient meals (R-2 = 0.98) and logarithmically related for the nonnutrient meals (R-2 = 0.96). Fullness was higher for high-compared with low-viscosity meals (P < 0.02), and with the nutrient meals this was associated withgreater antral volumes (P < 0.05).

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 20:14:29