Featured Research

from universities, journals, and other organizations

Natural chemical found in grapes may protect against Alzheimer's disease

Date:
July 18, 2011
Source:
The Mount Sinai Hospital / Mount Sinai School of Medicine
Summary:
Researchers have found that grape seed polyphenols -- a natural antioxidant -- may help prevent the development or delay the progression of Alzheimer's disease.

Researchers at Mount Sinai School of Medicine have found that grape seed polyphenols -- a natural antioxidant -- may help prevent the development or delay the progression of Alzheimer's disease.

The research, led by Giulio Maria Pasinetti, MD, PhD, The Saunder Family Professor in Neurology, and Professor of Psychiatry and Geriatrics and Adult Development at Mount Sinai School of Medicine, was published online in the current issue of the Journal of Alzheimer's Disease.

This is the first study to evaluate the ability of grape-derived polyphenols to prevent the generation of a specific form of β-amyloid (Aβ) peptide, a substance in the brain long known to cause the neurotoxicity associated with Alzheimer disease. In partnership with a team at the University of Minnesota led by Karen Hsiao Ashe, MD, PhD, Dr. Pasinetti and his collaborators administered grape seed polyphenolic extracts to mice genetically determined to develop memory deficits and Aβ neurotoxins similar to those found in Alzheimer's disease. They found that the brain content of the Aβ*56, a specific form of Aβ previously implicated in the promotion of Alzheimer's disease memory loss, was substantially reduced after treatment.

Previous studies suggest that increased consumption of grape-derived polyphenols, whose content, for example, is very high in red wine, may protect against cognitive decline in Alzheimer's. This new finding, showing a selective decrease in the neurotoxin Aβ*56 following grape-derived polyphenols treatment, corroborates those theories.

"Since naturally occurring polyphenols are also generally commercially available as nutritional supplements and have negligible adverse events even after prolonged periods of treatment, this new finding holds significant promise as a preventive method or treatment, and is being tested in translational studies in Alzheimer's disease patients," said Dr. Pasinetti.

The study authors emphasize that in order for grape-derived polyphenols to be effective, scientists need to identify a biomarker of disease that would pinpoint who is at high risk to develop Alzheimer's disease.

"It will be critical to identify subjects who are at high risk of developing Alzheimer's disease, so that we can initiate treatments very early and possibly even in asymptomatic patients," said Dr. Pasinetti. "However, for Alzheimer's disease patients who have already progressed into the initial stages of the disease, early intervention with this treatment might be beneficial as well. Our study implicating that these neurotoxins such as Aβ*56 in the brain are targeted by grape-derived polyphenols holds significant promise."

This research was funded by a grant from the National Institutes of Health. Dr. Giulio Pasinetti is a named inventor of a pending patent application filed by Mount Sinai School of Medicine (MSSM) related to the study of Alzheimer's disease. In the event the pending or issued patent is licensed, Dr. Pasinetti would be entitled to a share of any proceeds MSSM receives from the licensee.


Story Source:

The above story is based on materials provided by The Mount Sinai Hospital / Mount Sinai School of Medicine. Note: Materials may be edited for content and length.


Journal Reference:

  1. Peng Liu, Lisa J. Kemper, Jun Wang, Kathleen R. Zahs, Karen H. Ashe, Giulio M. Pasinetti. Grape Seed Polyphenolic Extract Specifically Decreases Aβ*56 in the Brains of Tg2576 Mice. Journal of Alzheimer's Disease., Volume 26, Number 4, (in press)

Cite This Page:

The Mount Sinai Hospital / Mount Sinai School of Medicine. "Natural chemical found in grapes may protect against Alzheimer's disease." ScienceDaily. ScienceDaily, 18 July 2011. <www.sciencedaily.com/releases/2011/07/110715135211.htm>.
The Mount Sinai Hospital / Mount Sinai School of Medicine. (2011, July 18). Natural chemical found in grapes may protect against Alzheimer's disease. ScienceDaily. Retrieved April 20, 2014 from www.sciencedaily.com/releases/2011/07/110715135211.htm
The Mount Sinai Hospital / Mount Sinai School of Medicine. "Natural chemical found in grapes may protect against Alzheimer's disease." ScienceDaily. www.sciencedaily.com/releases/2011/07/110715135211.htm (accessed April 20, 2014).

Share This



More Health & Medicine News

Sunday, April 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Nine-Month-Old Baby Can't Open His Mouth

Nine-Month-Old Baby Can't Open His Mouth

Newsy (Apr. 19, 2014) Nine-month-old Wyatt Scott was born with a rare disorder called congenital trismus, which prevents him from opening his mouth. Video provided by Newsy
Powered by NewsLook.com
'Holy Grail' Of Weight Loss? New Find Could Be It

'Holy Grail' Of Weight Loss? New Find Could Be It

Newsy (Apr. 18, 2014) In a potential breakthrough for future obesity treatments, scientists have used MRI scans to pinpoint brown fat in a living adult for the first time. Video provided by Newsy
Powered by NewsLook.com
Little Progress Made In Fighting Food Poisoning, CDC Says

Little Progress Made In Fighting Food Poisoning, CDC Says

Newsy (Apr. 18, 2014) A new report shows rates of two foodborne infections increased in the U.S. in recent years, while salmonella actually dropped 9 percent. Video provided by Newsy
Powered by NewsLook.com
Scientists Create Stem Cells From Adult Skin Cells

Scientists Create Stem Cells From Adult Skin Cells

Newsy (Apr. 17, 2014) The breakthrough could mean a cure for some serious diseases and even the possibility of human cloning, but it's all still a way off. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins