Archive for the ‘Red Grapes’ Category

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Red Grape Compound Aids Weight Loss to Help Prevent Obesity

January 15, 2013
Red Grape Compounds Aid Weight Management to Help Prevent Obesity

Red Grape Compounds Aid Weight Management to Help Prevent Obesity

Obesity and overweight are threatening the health and lives of nearly seventy percent of the US population, and indicators are this epidemic is continuing to affect even more men, women and children as it places a significant burden on an already failing health care system. Most health-minded individuals understand the importance of eliminating refined and processed foods while maintaining constant blood glucose and insulin levels to achieve individual weight management goals.

Researchers from Purdue University have published the result of a study in the Journal of Biological Chemistry that demonstrates the potent nature of natural compounds found in red wine and many fruits to block cellular processes that allow fat cells to develop. Scientists found that the compound piceatannol, found naturally in the skin of grapes and other fruits blocks an immature fat cell’s ability to develop and grow, opening a door to a potential method to control obesity.

Piceatannol Inhibits the Formation of Mature Fat Cells to Achieve Weight Management Goals

The lead study author, Dr. Kee-Hong Kim found that piceatannol, an analog of resveratrol found in grapes and other fruit, is converted to piceatannol in humans following its consumption. The team tested piceatannol in cultured immature fat cells called preadipocytes to determine if the compound inhibited the maturity process that results in fully developed fat cells, capable of storing body fat and contributing to obesity.

Dr. Kim commented “We consider that adipogenesis is an important molecular target to delay or prevent fat cell accumulation and, hopefully, body fat mass gain.” The team found that piceatannol bound to the insulin receptor on the immature fat cells, effectively blocking insulin’s ability to control normal cellular cycling resulting in mature adipocytes. The grape-derived compound stimulated the activation of special genes necessary for the fat cell maturation process.

Eat a Wide Variety of Natural Fruits and Vegetables to Help Weight Loss Issues

The study authors concluded “Piceatannol actually alters the timing of gene expressions, gene functions and insulin action during adipogenesis, the process in which early stage fat cells become mature fat cells… in the presence of piceatannol, you can see delay or complete inhibition of adipogenesis.” Similar in structure to resveratrol, scientists believe piceatannol may also exert some of the same properties to help combat cancer, heart disease and neurodegenerative conditions.

Piceatannol is yet another natural compound that has demonstrated the ability to influence genetic expression to inhibit the formation of adipocytes or alter metabolism to help achieve weight management goals alongside resveratrol, green tea catechins (EGCG) and irvingia gabonensis. When used to compliment a natural food diet void of wheat and refined carbohydrates, piceatannol may be an important component to achieve natural weight management goals.

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Red Grapes Lower Incidence of Age-Related Macular Degeneration (AMD)

July 2, 2012
Macular Degeneration is the Leading Cause of Blindness in Adults Over 60

Macular Degeneration is the Leading Cause of Blindness in Adults Over 60

Age-related macular degeneration is a progressive eye condition, leading to the deterioration of the center of the retina, called the macula. It is the leading cause of blindness in the elderly. The result of a study published in the journal Free Radical Biology and Medicine finds that eating grapes over a lifetime may slow or help prevent age-related macular degeneration as we age.

Red Grapes Found to Offer Significant Protection against AMD and Blindness

Red Grapes Lower Oxidative Stress to the Retina

Red Grapes Lower Oxidative Stress to the Retina

The antioxidant actions of grapes are believed to be responsible for these protective effects, as they are shown to specifically target the eye to provide a protective shield against repeated assaults perpetrated by exposure to the sun and high-intensity light sources. Silvia Finnemann, principal researcher from Fordham University in New York commented, “A lifelong diet enriched in natural antioxidants, such as those in grapes, appears to be directly beneficial for retinal pigment epithelium cells and retinal health and function.”

The study compared the impact of a diet rich in antioxidants on vision in mice prone to developing retinal damage in old age in much the same way as humans do. Mice either received a grape-enriched diet, a diet with added lutein, or a normal diet. Researchers found that the diet enriched with grapes offered dramatic protection, as it was shown to protect against oxidative damage of the retina and prevent blindness. While a diet supplemented with lutein was also effective, grapes were found to offer significantly more protection.

Red Grapes Lower Retinal Oxidative Stress to Improve Eye Health

Lifelong Consumption of Red Grapes Lowers Risk of AMD

Lifelong Consumption of Red Grapes Lowers Risk of AMD

Dr. Finnemann noted “The protective effect of the grapes in this study was remarkable, offering a benefit for vision at old age even if grapes were consumed only at young age.” The result of this study determined that age-related vision loss is a result of cumulative, oxidative damage over time. A diet rich in antioxidants, especially those provided by lifelong consumption of red grapes are directly beneficial to retinal health and function.

This study showed that adding grapes to the diet prevented blindness in mice by significantly decreasing the build-up of lipofuscin and preventing the oxidative damage to the retina. Red grapes contain the powerful antioxidant, resveratrol that has been demonstrated to provide essential support for optimal brain function and heart health. Consuming several ounces of red grapes each day may provide an important key to prevent eye damage and blindness from AMD.