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:6/25/2016)... ... June 25, 2016 , ... Experts from the American Institutes ... Research Meeting June 26-28, 2016, at the Hynes Convention Center in Boston. , ... advance care planning, healthcare costs and patient and family engagement. , AIR researchers ...
(Date:6/25/2016)... ... 2016 , ... "With 30 hand-drawn hand gesture animations, FCPX users can easily ... of Pixel Film Studios. , ProHand Cartoon’s package transforms over 1,300 hand-drawn pictures ... . Simply select a ProHand generator and drag it above media or text in ...
(Date:6/25/2016)... ... June 25, 2016 , ... ... non-athletes recover from injury. Recently, he has implemented orthobiologic procedures as a method ... —Johnson is one of the first doctors to perform the treatment. Orthobiologics are ...
(Date:6/24/2016)... ... June 24, 2016 , ... A recent article published June 14 ... The article goes on to state that individuals are now more comfortable seeking to ... operations such as calf and cheek reduction. The Los Angeles area medical group, Beverly ...
(Date:6/24/2016)... ... 2016 , ... Marcy was in a crisis. Her son James, eight, was out of control. ... and physically. , “When something upset him, he couldn’t control his emotions,” remembers Marcy. ... rocks at my other children and say he was going to kill them. If ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... ANGELES , June 23, 2016 ... CAPR ), a biotechnology company focused ... therapeutics, today announced that patient enrollment in its ... in Duchenne) has exceeded 50% of its 24-patient ... enrollment in the third quarter of 2016, and ...
(Date:6/23/2016)... PARK RIDGE, Ill. and INDIANAPOLIS ... caliber of students receiving a Lilly Diabetes Tomorrow,s Leaders ... hands. The 2016 scholarship winners, announced today online at ... refused to let type 1 diabetes stand in the ... Lilly Diabetes has supported the Foundation,s scholarship program since ...
(Date:6/23/2016)... Pa. , June 23, 2016 The ... in an outpatient dialysis facility.  Treatments are usually 3 ... 6 hours per visit, including travel time, equipment preparation ... a patient, but especially grueling for patients who are ... of a skilled nursing and rehabilitation centers for some ...
Breaking Medicine Technology: