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Blueberries

Blueberry Drink Protects Mice from Diabetes, Obesity

Monday, January 18, 2010 by: David Gutierrez, staff writer
Tags: blueberries, diabetes, health news


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(NaturalNews) A special blueberry drink fortified by processing it with bacteria that naturally occur on the fruit's skin proved effective at preventing the development of obesity and diabetes in mice predisposed to the conditions, in a study conducted by researchers from the University of Montreal, the Institut Armand-Frappier and the Université de Moncton, and published in the International Journal of Obesity.

Researchers "biotransformed" juice from the North American lowbush blueberry by fermenting it with Serratia vaccinii, a bacteria naturally found on the berry's skin. They then fed mice either the biotransformed juice or unmodified blueberry juice for three days. All the mice had been bred for resistance to the hormone leptin, thus predisposing them to obesity, insulin resistance, diabetes and high blood pressure

"Consumption of fermented blueberry juice gradually and significantly reduced high blood glucose levels in diabetic mice," lead author Tri Vuong said. "After three days, our mice subjects reduced their glycemia levels by 35 percent."

The mice drinking the biotransformed juice also ate less and gained less weight than the mice in the control group.

"Results of this study clearly show that biotransformed blueberry juice has strong anti-obesity and anti-diabetic potential," senior author Pierre S. Haddad said. "Biotransformed blueberry juice may represent a novel therapeutic agent."

The researchers are unsure why the biotransformed juice proves so much more effective, but they believe that the fermentation process enhances the effectiveness of the fruit's naturally occurring antioxidants. The researchers suggested that these antioxidants might assist the activity of the hormone adiponectin, which is associated with a lower risk of obesity.

The anthocyanins found in blueberries have also previously been linked to a reduced risk of retinopathy, an eye disorder, in diabetics.

"The identification of the active compounds in biotransformed blueberry juice may result in the discovery of promising new anti-obesity and anti-diabetic molecules," Haddad said.

An estimated 24 million people in the United States suffer from diabetes, and another 57 million are considered pre-diabetic.

Sources for this story include: www.ajc.com; www.nouvelles.umontreal.ca.

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