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Lipids Health Dis. 2013 Mar 28;12:44. doi: 10.1186/1476-511X-12-44.

Fiber-free white flour with fructose offers a better model of metabolic syndrome.

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  • 1Natural Products Research Division, Department of Biological and Biomedical Sciences, Aga Khan University Medical College, Karachi 74800, Pakistan.

Abstract

BACKGROUND:

The metabolic syndrome (MS) is a combination of metabolic abnormalities that lead to an increased risk of cardiovascular diseases. Due to its rising incidence and demanding life-long use of multiple drugs, there is a growing interest in testing and developing new allopathic, complementary and alternative therapies for controlling or curing disorders of MS. The discovery of new therapeutic modalities requires animal models of disease and currently available models have limitations. Developing an appropriate animal model for MS to achieve various therapeutic targets remains a challenge and this study aims to develop a rat model which closely depicts MS in humans.

METHODOLOGY:

Rat model of MS was developed by replacing 60% of diet with fructose. Four groups of Sprague-Dawley rats were either given whole wheat or refined flour with and without fructose for 8 weeks. Data were analyzed on SPSS and Graphpad Prism using ANOVA with Tukey's and Bonferonni tests for multiple group comparison. A p-value of less than 0.05 was considered significant for differences between groups.

RESULTS:

Replacing whole wheat with refined wheat flour in rat chow in 60% fructose-fed Sprague-Dawley rats resulted in hypertension (p 0.01), hyper-insulinemia (p < 0.001), hyperglycemia (p 0.03) and a reduction in HDL levels (p 0.002) at 4 weeks while hyper-triglyceridemia (p 0.001) with endothelial dysfunction was observed at 8 weeks.

CONCLUSION:

It is concluded that the refined wheat flour with 60% fructose in diet hastens the development of metabolic syndrome in 4 weeks and replacing whole wheat flour with refined flour in diet induces a more effective abnormality including a low HDL. Further studies may be directed to assess the associated pathological changes, which can be used to study the effect of different therapeutic modalities on an animal model of MS with low HDL.

PMID:
23537367
[PubMed - indexed for MEDLINE]
PMCID:
PMC3621840
Free PMC Article
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