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Sponsors and Collaborators: |
University of Copenhagen Danisco |
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Information provided by: | University of Copenhagen |
ClinicalTrials.gov Identifier: | NCT00302302 |
The purpose of this study is to investigate the effect of L-arabinose in a sugar-rich meal on intestinal sucrase activity in healthy volunteers by measuring postprandial blood glucose and insulin, and selected intestinal hormonal responses to increasing doses of L-arabinose.
Condition | Intervention | Phase |
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Blood Glucose |
Drug: L-arabinose |
Phase I |
Study Type: | Interventional |
Study Design: | Prevention, Randomized, Double-Blind, Dose Comparison, Crossover Assignment, Efficacy Study |
Official Title: | The Effects of Increasing Doses of L-Arabinose in a Sucrose Rich Meal on Intestinal Sucrase Activity in Man |
Enrollment: | 15 |
Study Start Date: | September 2005 |
Estimated Study Completion Date: | November 2005 |
Background:
The intake of common table sugar (sucrose) in the industrialised countries is relatively high. In Denmark the daily intake of sugar is in the range of 30-40 g/d exclusive the intake of sugar containing drinks. The health consequences of this relatively high sugar intake are heavily debated in the media.
One of the arguments is that a high sugar intake may be one of the factors involved in the development of the metabolic syndrome, including overweight, increased blood glucose and insulin levels as well as impaired insulin action. L-arabinose is widely distributed in plants and is a common component in plant cell walls in maize, wheat, rye, rice, plant gums etc. The isolated 5-carbon sugar has been shown to suppress the increase of blood glucose and plasma insulin after ingestion of sucrose in rats by inhibition of sucrase activity. In vitro studies on Caco-2 cells indicate that L-arabinose is a potent inhibitor on sucrase activity, possibly in a non-competitive way. Potential nutritional advantages of consuming L-arabinose in combination with sucrose may therefore be a delayed digestion of sucrose and a lower absorption of glucose, resulting in both lower blood glucose and insulin levels. A delayed digestion of sucrose will reduce the energy utilisation with the potential of reducing weight gain in human subjects.
Methods:
This dose-response study with 14 healthy male volunteers has a randomised cross-over design based on four single "meals" separated by one week wash-out periods. Sugar rich drinks supplemented with different doses of L-arabinose will be tested with respect to postprandial blood glucose, insulin, triglyceride, GIP and GLP-1. Postprandial blood samples will be taken every 15 to 30 min for 180 min. Appetite sensations will be measured every 30 min during the experiment. After 180 minutes an ad libitum lunch will be served and EI will be registered.
Ages Eligible for Study: | 18 Years to 30 Years |
Genders Eligible for Study: | Male |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
Exclusion Criteria:
Denmark | |
Institute of Human Nutrition, The Royal Veterinary and Agricultural University | |
Frederiksberg, Denmark, DK-1958 |
Principal Investigator: | Klaus Bukhave, MSc, MScD | Institute of Human Nutrition, The Royal Veterinary and Agricultural University, Denmark |
Study ID Numbers: | (KF) 01 270121, M181 |
Study First Received: | September 21, 2005 |
Last Updated: | January 20, 2009 |
ClinicalTrials.gov Identifier: | NCT00302302 History of Changes |
Health Authority: | Denmark: The Danish National Committee on Biomedical Research Ethics |
Blood glucose Insulin Triglyceride GIP |
GLP-1 L-arabinose Appetite Energy intake |
Insulin Glucagon-Like Peptide 1 |