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Efficacy of Isomaltulose Compared to Sucrose in Modulating Endothelial Function in Overweight Adults

Authors
  • de Groot, Eric1, 2
  • Schweitzer, Lisa3
  • Theis, Stephan3
  • 1 Imagelabonline & Cardiovascular, 4117 GV Erichem, The Netherlands
  • 2 Amsterdam UMC—Location Academic Medical Centre, Departments of Clinical Epidemiology, Biostatistics and Bioinformatics, and Gastroenterology, 1105 AZ Amsterdam, The Netherlands
  • 3 (S.T.)
Type
Published Article
Journal
Nutrients
Publisher
MDPI AG
Publication Date
Jan 03, 2020
Volume
12
Issue
1
Identifiers
DOI: 10.3390/nu12010141
PMID: 31947853
PMCID: PMC7019610
Source
PubMed Central
Keywords
License
Green

Abstract

Hyperglycemia is linked to impaired arterial endothelial function (EF), an early sign of cardiovascular disease. We compared the efficacy of low-glycemic index isomaltulose (Palatinose™) with that of sucrose in modulating EF, as assessed by flow-mediated dilation (FMD). In this double-blinded cross-over study, 80 overweight mildly hypertensive subjects were randomized to receive 50 g of either isomaltulose or sucrose. On two non-consecutive days, brachial artery ultrasound FMD scans were obtained prior to and hourly (T0–T3) after carbohydrate load. Blood was drawn immediately after scanning. Glucose and insulin levels were analyzed. Overall, the FMD decrease was attenuated by isomaltulose compared to sucrose (ΔFMD = −0.003% and −0.151%; p > 0.05 for the interaction treatment x period). At T2, FMD was significantly higher after isomaltulose administration compared to that after sucrose administration (FMD = 5.9 ± 2.9% and 5.4 ± 2.6%, p = 0.047). Pearson correlations between FMD and blood glucose showed a trend for a negative association at T0 and T2 independently of the carbohydrate (r-range = −0.20 to −0.23, p < 0.1). Sub-analysis suggested a lower FMD in insulin-resistant (IR) compared to insulin-sensitive subjects. Isomaltulose attenuated the postprandial decline of FMD, particularly in IR persons. These data support the potential of isomaltulose to preserve the endothelial function postprandially and consequently play a favorable role in cardiovascular health.

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