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Abstract Title:

Dietary supplementation with decaffeinated green coffee improves diet-induced insulin resistance and brain energy metabolism in mice.

Abstract Source:

Nutr Neurosci. 2012 Jan ;15(1):37-45. PMID: 22305652

Abstract Author(s):

Lap Ho, Merina Varghese, Jun Wang, Wei Zhao, Fei Chen, Lindsay Alexis Knable, Mario Ferruzzi, Giulio M Pasinetti

Article Affiliation:

Department of Neurology, Mount Sinai School of Medicine, New York, NY 10029, USA.

Abstract:

OBJECTIVES: There is accumulating evidence that coffee consumption may reduce risk for type 2 diabetes, a known risk factor for Alzheimer's and other neurological diseases. Coffee consumption is also associated with reduced risk for Alzheimer's disease and non-Alzheimer's dementias. However, preventive and therapeutic development of coffee is complicated by the cardiovascular side effects of caffeine intake. As coffee is also a rich source of chlorogenic acids and many bioactive compounds other than caffeine, we hypothesized that decaffeinated coffee drinks may exert beneficial effects on the brain.

METHODS: We have investigated whether dietary supplementation with a standardized decaffeinated green coffee preparation, Svetol®, might modulate diet-induced insulin resistance and brain energy metabolism dysfunction in a high-fat diet mouse model.

RESULTS: As expected, dietary supplementation with Svetol® significantly attenuated the development of high-fat diet-induced deficits in glucose-tolerance response. We have also found that Svetol®) treatment improved brain mitochondrial energy metabolism as determined by oxygen consumption rate. Consistent with this evidence, follow-up gene expression profiling with Agilent whole-genome microarray revealed that the decaffeinated coffee treatment modulated a number of genes in the brain that are implicated in cellular energy metabolism.

DISCUSSION: Our evidence is the first demonstration that dietary supplementation with a decaffeinated green coffee preparation may beneficially influence the brain, in particular promoting brain energy metabolic processes.

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Sayer Ji
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