Gastric emptying, glucose metabolism and gut hormones: evaluation of a common preoperative carbohydrate beverage

Mechteld A R Vermeulen, Milan C Richir, Martijn K Garretsen, Annelies van Schie, Mohammed A Ghatei, Jens Juul Holst, Annemieke C Heijboer, Bernard M J Uitdehaag, Michaela Diamant, E Marelise W Eekhoff, Paul A M van Leeuwen, Gerdien C Ligthart-Melis

    13 Citations (Scopus)

    Abstract

    Objective: To study the gastric-emptying rate and gut hormonal response of two carbohydrate-rich beverages. A specifically designed carbohydrate-rich beverage is currently used to support the surgical patient metabolically. Fruit-based beverages may also promote recovery, due to natural antioxidant and carbohydrate content. However, gastric emptying of fluids is influenced by its nutrient composition; hence, safety of preoperative carbohydrate loading should be confirmed. Because gut hormones link carbohydrate metabolism and gastric emptying, hormonal responses were studied. Methods: In eight volunteers, gastric emptying rates of both 400 mL of a ready-to-use beverage (A: Nutricia preOp; 50.4 g carbohydrates-mainly polysaccharides; 260 mOsm/kg) and 400 mL over-the-counter fruit-based lemonade (B: Roosvicee Original; 48 g carbohydrates-mainly fruit-associated saccharides; 805 mOsm/kg) were determined scintigraphically (using hepatate Tc-99 m) according to a crossover design. Plasma glucose, insulin, C-peptide, glucagon-like peptide (GLP-1), peptide YY, total glucagon, and ghrelin were studied. Results: Gastric emptying showed no differences in residual volumes. Earlier onset in emptying for beverage A versus B was observed (trend), with significantly higher glucose, insulin, C-peptide, and glucagon responses at 15-90 min. GLP-1 was inversely related to residual volume. Conclusion: Fruit-based lemonade is a safe alternative for preoperative purposes. It induces a more limited glucose, insulin, and C-peptide response. Later onset in gastric emptying (B versus A: trend), lower glucagon release, and differences in beverage content and osmolarity may have contributed to those differences. Efficient emptying was reflected by early GLP-1 levels.

    Original languageEnglish
    JournalNutrition
    Volume27
    Issue number9
    Pages (from-to)897-903
    Number of pages7
    ISSN0899-9007
    DOIs
    Publication statusPublished - Sept 2011

    Keywords

    • Adult
    • Beverages
    • Blood Glucose
    • C-Peptide
    • Carbohydrates
    • Citrus
    • Cross-Over Studies
    • Dietary Carbohydrates
    • Female
    • Fruit
    • Gastric Emptying
    • Gastrointestinal Contents
    • Gastrointestinal Hormones
    • Glucagon
    • Glucagon-Like Peptide 1
    • Humans
    • Insulin
    • Male
    • Middle Aged
    • Polysaccharides
    • Preoperative Care

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