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Nordic Seaweed and Diabetes Prevention: Exploratory Studies in KK-Ay Mice

1
Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200 Aarhus N, Denmark
2
Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 165, 8200 Aarhus N, Denmark
3
Steno Diabetes Center Aarhus, Palle Juul-Jensens Boulevard 165, 8200 Aarhus N, Denmark
*
Author to whom correspondence should be addressed.
Nutrients 2019, 11(6), 1435; https://doi.org/10.3390/nu11061435
Received: 4 June 2019 / Revised: 17 June 2019 / Accepted: 18 June 2019 / Published: 25 June 2019
(This article belongs to the Special Issue Health Benefits of the Nordic Diet)
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Abstract

Background: The global epidemic of type 2 diabetes (T2D) is a challenging health problem. Lifestyle changes, including nutrition therapy, areimportant for the prevention and management of T2D. Seaweeds contain several bioactive substances with potential health properties and may be a low-cost alternative functional food in the prevention of T2D. Objective: The aim of this study was to explore the preventive effects of dried Nordic seaweed species on diabetes in an animal model of T2D. Method: Fiftymale KK-Ay mice were randomly assigned to one of four diets: control diet (chow) or diets supplemented with Alaria esculenta (AE), Saccharina latissima (SL), or Palmaria palmata (PP). The effect of the interventions on the progression of T2D was monitored over 10 weeks and evaluated by circulating glucose, glycated hemoglobin (HbA1c), insulin, glucagon, and lipid levels. Results: The SL group had significantly lower bodyweight, lower HbA1c and insulin levels, as well as higher high density lipoprotein (HDL) cholesterol levels after the 10-week intervention than the control group. At the end of the study, the control group had significantly higher HbA1c (p < 0.001) than all of the seaweed groups. Conclusion: All seaweed groups improved HbA1C compared to control and Saccharinalatissima seaweed had concomitantly beneficial effects on glycemic control and lipid levels in KK-Ay diabetic mice. View Full-Text
Keywords: diabetes; KK-Ay mice; seaweed; algae; Alaria esculenta; Saccharina latissima; Palmaria palmata diabetes; KK-Ay mice; seaweed; algae; Alaria esculenta; Saccharina latissima; Palmaria palmata
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Sørensen, L.E.; Jeppesen, P.B.; Christiansen, C.B.; Hermansen, K.; Gregersen, S. Nordic Seaweed and Diabetes Prevention: Exploratory Studies in KK-Ay Mice. Nutrients 2019, 11, 1435.

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