Enhanced anti-obesity effects of complex of resistant starch and chitosan in high fat diet fed rats

Xu Si, Padraig Strappe, Christopher Blanchard, Zhong Kai Zhou

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

This study investigated the interventional effect of resistant starch (RS), chitosan (CS) and chitosan-starch complexes (CL) on blood glucose, lipid composition and oxidative stress in high-fat diet fed rats. Compared with RS or CS alone, CL administration performed more efficiently in controlling body weight and adipose tissue mass, together with an increase in HDL-C concentration, oxidative stress suppression by increasing body antioxidant capacity. Gene expression analysis demonstrated the fatty acid and triglyceride synthesis and metabolism gene SREBP-1, adipocyte differentiation gene PPARγ, cholesterol synthesis gene HMGCR, gluconeogenesis gene GAPDH, were significantly down-regulated, whilst lipid oxidation gene Acox1 and liver functional genes Gstm2, Gclc were up-regulated following CL consumption compared with single RS or CS treatment. Hypolipidemic effects were observed by CL administration and oxidative stress suppression by CL appeared to be associated with elevated antioxidant enzyme activity, increased lipid oxidation, as well as improved fatty acid and cholesterol homeostasis.

Original languageEnglish
Pages (from-to)834-841
Number of pages8
JournalCarbohydrate Polymers
Volume157
Early online date17 Oct 2016
DOIs
Publication statusPublished - 10 Feb 2017

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Chitosan
Nutrition
Oils and fats
Starch
Rats
Genes
Fats
Oxidative stress
Lipids
Cholesterol
Antioxidants
Fatty acids
Fatty Acids
Oxidation
Peroxisome Proliferator-Activated Receptors
Enzyme activity
Metabolism
Gene expression
Liver
Glucose

Cite this

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abstract = "This study investigated the interventional effect of resistant starch (RS), chitosan (CS) and chitosan-starch complexes (CL) on blood glucose, lipid composition and oxidative stress in high-fat diet fed rats. Compared with RS or CS alone, CL administration performed more efficiently in controlling body weight and adipose tissue mass, together with an increase in HDL-C concentration, oxidative stress suppression by increasing body antioxidant capacity. Gene expression analysis demonstrated the fatty acid and triglyceride synthesis and metabolism gene SREBP-1, adipocyte differentiation gene PPARγ, cholesterol synthesis gene HMGCR, gluconeogenesis gene GAPDH, were significantly down-regulated, whilst lipid oxidation gene Acox1 and liver functional genes Gstm2, Gclc were up-regulated following CL consumption compared with single RS or CS treatment. Hypolipidemic effects were observed by CL administration and oxidative stress suppression by CL appeared to be associated with elevated antioxidant enzyme activity, increased lipid oxidation, as well as improved fatty acid and cholesterol homeostasis.",
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Enhanced anti-obesity effects of complex of resistant starch and chitosan in high fat diet fed rats. / Si, Xu; Strappe, Padraig; Blanchard, Christopher; Zhou, Zhong Kai.

In: Carbohydrate Polymers, Vol. 157, 10.02.2017, p. 834-841.

Research output: Contribution to journalArticle

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AU - Zhou, Zhong Kai

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