Navigation Links
Study shows how to boost value of Alzheimer's-fighting compounds
Date:8/17/2009

WEST LAFAYETTE, Ind. - The polyphenols found in red wine are thought to help prevent Alzheimer's disease, and new research from Purdue University and Mount Sinai School of Medicine has shown that some of those compounds in fact reach the brain.

Mario Ferruzzi, a Purdue associate professor of food science; Connie Weaver, Purdue's head of foods and nutrition; and Elsa Janle, a Purdue associate professor of foods and nutrition, found that the amount of polyphenols from grapeseed extract that can reach a rat's brain is as much as 200 percent higher on the 10th consecutive day of feeding as compared to the first. Many previous experiments, in which absorption was measured after single or sporadic doses, often found very little, if any, of the bioactive polyphenols reaching brain tissues. However, more chronic exposure appears to improve absorption.

"This shows that reasonable and chronic consumption of these products may be the way to go, rather than single, high doses, similar to drugs," said Ferruzzi, who collaborated on the research with Mount Sinai's Dr. Giulio Pasinetti. "It's like eating an apple a day, not a case of apples over two days every month."

A paper detailing the findings was published in the early online version of the September issue of the Journal of Alzheimer's Disease.

Polyphenols, compounds found in the skins and seeds of grapes, are thought to prevent the formation of beta-amyloid protein, which creates the plaque in the brain that causes Alzheimer's disease. Alzheimer's is a progressive brain disease that destroys memory and cognitive skills and affects as many as 4.5 million Americans, according to the National Institute on Aging.

Pasinetti, the Aidekman Family Professor in Neurology and director of the Center of Excellence for Novel Approaches to Neurotherapeutics, said discovering how polyphenols are absorbed and distributed to the brain can impact researchers' understanding of the amount of grape products or red wine a person would need to consume to most effectively combat Alzheimer's disease.

"The most important thing is that when we follow the repetitive administration of this compound, we were able to observe the transfer of the compound to the brain," Pasinetti said. "This may help us figure out the proper concentration necessary to get these chemicals to the brain."

Ferruzzi said the study dealt with polyphenols, but also could be important for determining proper doses of other compounds or drugs for patients. Testing of a pharmaceutical, for example, could show that the drug is too potent when given repetitively; whereas that might not be apparent if the drug is administered on non-consecutive days or weeks.

"It could become important in terms of side effects," Ferruzzi said. "You could be overdosing because the body is adapting and absorbing or metabolizing these compounds differently over time."

Pasinetti is the principal investigator for the Center of Excellence for Research and Complementary and Alternative Medicine in Alzheimer's Disease grant from the National Institutes of Health that funded the work. Ferruzzi said further studies will focus on the mechanisms that control absorption of compounds during chronic consumption.


'/>"/>

Contact: Brian Wallheimer
bwallhei@purdue.edu
765-496-2050
Purdue University
Source:Eurekalert

Related medicine news :

1. Penn study finds pro-death proteins required to regulate healthy immune function
2. New study shows promise in reducing surgical risks associated with surgical bleeding
3. Study, meta-analysis examine factors associated with death from heatstroke
4. Study suggests loss of 2 types of neurons -- not just 1 -- triggers Parkinsons symptoms
5. Study says COPD testing is not measuring up
6. Preclinical study suggests organ-transplant drug may aid in lupus fight
7. Ability to cope with stress can increase good cholesterol in older white men, study finds
8. High alcohol consumption increases stroke risk, Tulane study says
9. Mailman School of Public Health study examines link between racial discrimination and substance use
10. Pitt study finds inequality in tobacco advertising
11. Stanford study highlights cost-effective method of lowering heart disease risks
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/24/2017)... ... 24, 2017 , ... Houston dentist , Dr. Behzad ... Dental Center. Currently, patients can get single dental implants for $3,599 and All ... learn more about these offers by contacting Antoine Dental Center. Both of these ...
(Date:2/24/2017)... ... February 24, 2017 , ... ... education, networking and recognition opportunities as well as advocacy for the state and ... NJ on February 23. The Council's Innovation Forecast event highlights innovation throughout ...
(Date:2/24/2017)... ... February 24, 2017 , ... Dr. ... has officially announced the appointment of Peter A. Bell, DO, MBA, HPF, FACOEP-dist., ... (LUCOM), beginning April 10. Dr. Bell comes to Liberty from the Ohio ...
(Date:2/24/2017)... , ... February 24, 2017 , ... In the Health ... be a top priority because it’s not if you will be attacked, but when.” ... when it comes to digital health care. , Improvements in auditing and monitoring have ...
(Date:2/24/2017)... ... February 24, 2017 , ... Healthcare Associates of McKinney ... Craig Ranch building at 8080 State Highway 121, Suite 210, McKinney, Texas 75070. ... to Highway 121. , As the practice has grown, the need for more space ...
Breaking Medicine News(10 mins):
(Date:2/27/2017)... PLACENTIA, Calif. , Feb. 27, 2017   ... new line of nutritional supplements using its groundbreaking new ... and 90 percent of potency through digestion per ... nutritional supplements solve the problem of nutritional waste and ... Prevent degradation during digestive processes Improve ...
(Date:2/27/2017)... February 27, 2017 Now in its ... companies that are most successful at developing and commercialising innovation. ... The ... the same molecule to two different companies in early phase, ... on systematic, objective analysis of each company,s performance between 2011 and 2016, ...
(Date:2/27/2017)... and PETACH TIKVAH, Israel , ... (NASDAQ: BCLI), a leading developer of adult stem cell ... June S. Almenoff , M.D., Ph.D., FACP, and ... Board of Directors.  "Dr. Almenoff and ... appointments come at an exciting time for our company," ...
Breaking Medicine Technology: