title: Manipulation of gut hormone response to food by soluble fiber and alpha-glucosidase inhibition.
abstract: Preliminary data indicated that viscous fiber (guar) and alpha-glycosidase inhibition (acarbose) used in combination to slow carbohydrate absorption have an apparently additive effect in reducing the postprandial glycemic response. The full endocrine data reported here also demonstrate that reductions in insulin and gastric inhibitory polypeptide are most significant when guar and acarbose are used in combination. The results are divergent for enteroglucagon when guar and acarbose were given singly. Raised enterglucagon levels seen after acarbose are in keeping with inhibition of proximal absorption resulting in more distal absorption of carbohydrate. However, with viscous fiber, the enteroglucagon response was reduced, and this reduction was maintained even after addition of acarbose. The results demonstrate that the gut endocrine response can be manipulated by pharmacological interventions which alter the pattern of carbohydrate absorption.
authors.affiliation: Department of Nutritional Sciences, Faculty of Medicine, St. Michael's Hospital, University of Toronto, Canada.
authors.forename: D J
authors.initials: DJ
authors.lastname: Jenkins
authors.forename: R H
authors.initials: RH
authors.lastname: Taylor
authors.forename: R
authors.initials: R
authors.lastname: Nineham
authors.forename: D V
authors.initials: DV
authors.lastname: Goff
authors.forename: S R
authors.initials: SR
authors.lastname: Bloom
authors.forename: D L
authors.initials: DL
authors.lastname: Sarson
authors.forename: J J
authors.initials: JJ
authors.lastname: Misiewicz
authors.forename: K G
authors.initials: KG
authors.lastname: Alberti
mesh_terms: D020909:Acarbose; D001786:Blood Glucose / Q000378:metabolism*; D004040:Dietary Carbohydrates / Q000008:administration & dosage*; D004043:Dietary Fiber / Q000008:administration & dosage*; D005749:Gastric Inhibitory Polypeptide / Q000097:blood; D005768:Gastrointestinal Hormones / Q000097:blood*; D004763:Glucagon-Like Peptides / Q000097:blood; D065089:Glycoside Hydrolase Inhibitors; D006801:Humans; D007328:Insulin / Q000097:blood; D008297:Male; D014312:Trisaccharides / Q000008:administration & dosage*
chemical_list: D001786:Blood Glucose; D004040:Dietary Carbohydrates; D004043:Dietary Fiber; D005768:Gastrointestinal Hormones; D065089:Glycoside Hydrolase Inhibitors; D007328:Insulin; D014312:Trisaccharides; D005749:Gastric Inhibitory Polypeptide; D004763:Glucagon-Like Peptides; D020909:Acarbose