Navigation Links
Antioxidant-Rich Diet May Protect Against Eye Disease
Date:8/30/2008

Compounds likely extend life of retinal cells that fight age-related macular degeneration

FRIDAY, Aug. 29 (HealthDay News) -- Eating plenty of antioxidant-rich food such as blueberries, artichokes and pecans may help protect against macular degeneration, the leading cause of age-related blindness in the United States and other developed countries.

U.S. researchers found that antioxidants disrupt a link between two processes in the retina that, in combination, contribute to macular degeneration. Antioxidants also extend the lifetime of irreplaceable photoreceptors and other retinal cells.

The "destructive synergy" that causes macular degeneration occurs when a buildup of a compound called A2E disrupts energy production in mitochondria, the "power plants" in cells, the researchers said. The lack of energy interferes with daily cleaning and maintenance of photoreceptors and another type of retinal cell. This leads to more buildup of A2E and a continuing cycle that results in the destruction of the vital visual cells that can't be replaced.

Experiments using visual cells from humans, rats and cows showed that antioxidants could completely counter the damage caused by this process, said the researchers from Brigham Young University and Weill Medical College of Cornell University.

"The implication is that people at risk of macular degeneration could help prevent the disease by consuming antioxidants," study author Heidi Vollmer-Snarr, a Brigham Young chemist, said in a university news release.

The study was published online in the Journal of Biological Chemistry.

"This work by Dr. Vollmer-Snarr and colleagues ties these two damaging processes together and demonstrates the harm they cause in combination is much more than would be expected," Dr. Paul Bernstein, of the University of Utah's Moran Eye Center, said in the news release. "This new knowledge," added Bernstein, who wasn't involved in the study, "suggests the possibility of interventions which could prove to be powerful ways to prevent or delay age-related macular degeneration."

More information

The U.S. National Eye Institute has more about age-related macular degeneration.



-- Robert Preidt



SOURCE: Brigham Young University, news release, Aug. 19, 2008


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Dr. Oz and Oprah Pick Antioxidant-Rich Blueberries for Ultimate Checklist for Great Aging
2. Survey reveals disparities in skin cancer knowledge, protection among high school students
3. Scientists Develop Natural Protection for Stored Foods
4. Despite overeating, morbidly obese mice gain protection against diabetes
5. Daily Calcium Does Protect Bone
6. Tennessee Faith Leaders Call on Reps. Gordon & Blackburn to Co-sponsor Legislation to Protect Kids from Tobacco
7. Physician Skin Care Specialist Says Proposed New Rules for Sunscreen Products Will Better Protect the Public
8. Leading Child Abuse Center Releases Back to School Tips to Protect Children From Internet Predators
9. Breastfeeding does not protect against asthma, allergies
10. Breastfeeding does not protect children against developing asthma or allergies
11. Cognitive Activities Protect Against Alzheimers -- Social and Physical Activities Not Enough
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/22/2017)... ... 2017 , ... The first-ever National Heart Valve Disease Awareness ... join together to increase recognition about the risks of heart valve disease (HVD) ... mark a nationwide movement to raise awareness about a disease that has not ...
(Date:2/22/2017)... ... February 22, 2017 , ... The Centers for Medicare & ... practices in Delaware, New Jersey, Pennsylvania and West Virginia prepare for and participate ... Reauthorization Act of 2015 (MACRA). , This technical assistance, authorized and funded ...
(Date:2/22/2017)... ... February 22, 2017 , ... Bellus Medical, a leader in ... the delivery of Platelet Rich Plasma (PRP). PRP systems are used by physicians ... tissue synthesis and provide a faster and more efficient healing process. There are ...
(Date:2/22/2017)... , ... February 22, 2017 , ... ... company, launched a new media platform connecting healthcare technology professionals and other key ... followed by a quarterly publication starting on March 1, announced Michael J. Hennessy, ...
(Date:2/22/2017)... ... , ... The SeniorCare Investor will host an important webinar— Seniors Housing M&A: ... 1:00 PM ET. A recording of the webinar will also be made available following ... you want to find out what really happened in the seniors housing and care ...
Breaking Medicine News(10 mins):
(Date:2/22/2017)... Research and Markets has announced the addition of the ... to their offering. ... Dermatological conditions are one of the most ... US population suffers from at least one active skin condition. ... has remained saturated with established and generic products. However, the ...
(Date:2/22/2017)... Research and Markets has announced the addition of ... Small Molecule Drugs), By Route of Administration (Systemic, Topical), By ... report to their offering. ... The global psoriasis drugs market is anticipated ... report provides a detailed analysis of the current and future ...
(Date:2/22/2017)... , Feb. 22, 2017  Tri-Source Pharma announced today ... A series of newly appointed positions were added to ... CEO, Robert DiCrisci , in the implementation and ... management of the recently consolidated subsidiary companies. ... team will be composed of the following eight members ...
Breaking Medicine Technology: