Life Extension Update
Friday, May 18, 2012. Researchers at Georgetown University and 25 other U.S. academic institutions affiliated with the Alzheimer's Disease Cooperative Study will be conducting a phase II double-blinded, placebo-controlled trial that will test the effects of resveratrol in Alzheimer's disease patients. "This is the gold-standard for conducting a clinical study because it allows us to objectively determine if resveratrol is offering any benefits," stated Brigid Reynolds, NP, who is the lead researcher for the study's center at Georgetown.
The twelve-month trial, funded by the National Institute on Aging, will enroll men and women age 50 and over with mild to moderate dementia diagnosed as probable Alzheimer's disease and will require one caregiver or friend for each patient. Participants will be initially assigned to 500 milligrams resveratrol or a placebo daily, with dosage to be increased at 13 week intervals to a maximum of 1,000 milligrams twice per day. Lumbar punctures, brain magnetic resonance imaging (MRI) scans, and blood and urine tests will monitor the subjects' progress over the course of ten visits. The researchers hope to determine whether supplementation with resveratrol is helpful in delaying or altering the deterioration of memory and daily function that occurs in Alzheimer's disease.
"Most resveratrol studies showing any health benefits have been conducted in animal models, such as mice, and with doses that far exceed intake from sipping wine or nibbling on chocolate," stated R. Scott Turner, MD, PhD, who is the director of Georgetown University Medical Center's Memory Disorders Program and the national study's lead investigator. "With this clinical trial, we'll find out if daily doses of pure resveratrol can delay or alter memory deterioration and daily functioning in people with mild to moderate dementia due to Alzheimer's."
"During this study, we will also test whether resveratrol improves glucose and insulin metabolism in older individuals -- although those who already have diabetes will not be included in this study," he added.
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