 |
|
Nutrients lutein and zeaxanthin associated with reduced risk for age-related eye disease
September 11, 2007Consuming higher levels of the yellow plant pigments lutein and zeaxanthin may be associated with a lower risk for age-related macular degeneration, according to a report in the September issue of Archives of Ophthalmology, one of the JAMA/Archives journals.
Age-related macular degeneration (AMD) occurs when the macula, the area at the back of the retina that produces the sharpest vision, deteriorates over time. It is a leading cause of irreversible blindness among elderly people of European descent, according to background information in the article.
The Age-Related Eye Disease Study Research Group assessed 4,519 individuals who were age 60 to 80 when they enrolled in 1992 through 1998. At that time, photographs were taken of their retinas to determine if they had AMD, and if so, to which of four stages the condition had progressed. The participants also completed a food frequency questionnaire that measured how often they consumed foods rich in certain vitamins, minerals and other nutrients. These included lutein, zeaxanthin, beta-carotene, lycopene and vitamins C and E.
The participants were divided into five groups based on the amount of each nutrient they consumed. Those who had the highest levels of lutein and zeaxanthin were significantly less likely than those in the group with the lowest levels to have advanced AMD. They were also less likely to have large or numerous intermediate drusen, yellow or white deposits on the retina or optic nerve head that are a sign of AMD. No associations were seen with any of the other nutrients.
Lutein and zeaxanthin, also called carotenoids and found in yellow and dark leafy vegetables, may affect processes through which light and oxygen damage the eyes, the authors note. "Lutein and zeaxanthin have the capacity to filter short-wavelength light associated both with photochemical damage and the generation of reactive oxygen species that attack cellular lipids, proteins and nuclear material; these carotenoids also have the capacity to reduce the potency of nascent reactive oxygen species," which damage cells, they write.
"If these cross-sectional results can be confirmed in prospective samples and experimental studies, lutein and zeaxanthin may be considered as useful agents in food or supplement-based interventions designed to reduce the risk of AMD," the authors conclude.
JAMA and Archives Journals
The participants were divided into five groups based on the amount of each nutrient they consumed. Those who had the highest levels of lutein and zeaxanthin were significantly less likely than those in the group with the lowest levels to have advanced AMD. They were also less likely to have large or numerous intermediate drusen, yellow or white deposits on the retina or optic nerve head that are a sign of AMD. No associations were seen with any of the other nutrients.
Lutein and zeaxanthin, also called carotenoids and found in yellow and dark leafy vegetables, may affect processes through which light and oxygen damage the eyes, the authors note. "Lutein and zeaxanthin have the capacity to filter short-wavelength light associated both with photochemical damage and the generation of reactive oxygen species that attack cellular lipids, proteins and nuclear material; these carotenoids also have the capacity to reduce the potency of nascent reactive oxygen species," which damage cells, they write.
"If these cross-sectional results can be confirmed in prospective samples and experimental studies, lutein and zeaxanthin may be considered as useful agents in food or supplement-based interventions designed to reduce the risk of AMD," the authors conclude.
JAMA and Archives Journals
Zeaxanthin Current Events and Zeaxanthin News RSSBreeding better broccoli
Carotenoids-fat-soluble plant compounds found in some vegetables-are essential to the human diet and reportedly offer important health benefits to consumers.
Brown and beige dominate the plate: Daily dose of color needed to fill America's 'phytonutrient gap'
While it is a well-known fact that most Americans do not eat enough fruits and vegetables, a new report shows the color of fruits and veggies eaten can be as important as the quantity.
Essential nutrient found in eggs may help lower risk of neural tube defects
Research published online in the journal Epidemiology found that higher levels of total blood choline are associated with a 2.5-fold reduction in risk for neural tube birth defects (NTDs).
First evidence that weed killers improve nutritional value of a key food crop
Scientists are reporting for the first time that the use of weed killers in farmers' fields boosts the nutritional value of an important food a crop.
New supplement may help slow sight loss in elderly
Queen's University Belfast academics have helped develop an antioxidant supplement which may slow down sight loss in elderly people.
Sunlight exposure plus low antioxidant levels may place older adults at risk for eye disease
A European study suggests that the combination of low plasma levels of antioxidants and blue light exposure from the sun is associated with certain forms of the eye disease age-related macular degeneration (AMD), according to a report in the October issue of Archives of Ophthalmology, one of the JAMA/Archives journals.
Berkeley Researchers Identify Photosynthetic Dimmer Switch
In a study of the molecular mechanisms by which plants protect themselves from oxidation damage should they absorb too much sunlight during photosynthesis, a team of researchers has discovered a molecular "dimmer switch" that helps control the flow of solar energy moving through the system of light harvesting proteins.
Diets high in lutein, zeaxanthin and vitamin E associated with decreased risk of cataracts
Women who have higher dietary intake of lutein and zeaxanthin-compounds found in yellow or dark, leafy vegetables-as well as more vitamin E from food and supplements appear to have a lower risk for developing cataracts.
Antioxidants do not prevent degenerative eye disease
A diet rich in antioxidant vitamins and minerals does not seem to prevent the degenerative eye disease known as age related macular degeneration, finds a study published on bmj.com today.
New nationwide study will evaluate effect of antioxidants and fish oil on progression of AMD
The National Institutes of Health (NIH) announces a nationwide study to see if a modified combination of vitamins, minerals, and fish oil can further slow the progression of vision loss from AMD, the leading cause of vision loss in the United States for people over age 60.
More Zeaxanthin Current Events and Zeaxanthin News Articles
 |
ICaps Lutein & Zeaxanthin Formula, Coated Tablets, 120 coated tablets by ICaps Dietary Supplement. Promotes Healthy Eyes. (This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.) The primary carotenoids proven to be in the retina and lens of the eye. Contains all natural Lutein. ICaps Lutein & Zeaxanthin Formula is a safe and effective ocular dietary supplement. ICaps Dietary Supplement Lutein and Zeaxanthin Formula is the only major ocular antioxidant supplement that has a delayed release formula. This unique delayed release formula allows the ingredients to dissolve gradually, thereby contributing to greater absorption by the body. Lactose free. ICaps Dietary Supplement Lutein and Zeaxanthin Formula is developed by Alcon Laboratories, a world-wide leader in eye care.... |
 |
Super Zeaxanthin With Lutein & Meso-Zeaxanthin - 60 - Softgels by Life Extension The eye is a highly complex organ that must safely harvest, control, focus, and react to light in order to produce vision. Light enters the anterior portion of the eye through the clear cornea and fluid-like aqueous humor, and is then focused by the clear lens before entering the gel-like vitreous. It must pass through a nerve layer of ganglions connected to photoreceptors (both rods and cones) where light signals are converted to electrical signals that are transported to the brain. Behind the photoreceptors are the retinal pigmented epithelium cells that feed and remove toxic waste from the constantly active photoreceptors. The retinal pigmented epithelium cells rest on a thin, connective, tissue-like support structure called Bruchs membrane, which also serves to create a blood-brain... |
 |
Source Naturals Zeaxanthin, with Lutein, 10 mg, Capsules, 60 capsules (Pack of 2) by Source Naturals Dietary supplement. Antioxidant eye support. Zeaxanthin and Lutein, two powerful antioxidants found in fruits and vegetables, selectively concentrate in the retina of the eye to form the macular pigment. Maintaining healthy macular pigment levels may prov |
 |
Zeaxanthin 4 Mg 60 Sgels by Swanson Ultra Fortify your free-radical defenses for your eyes and other vital organs with Zeaxanthin. A member of the carotenoid family, Zeaxanthin is a powerful antioxidant with specific benefits for eye tissues. In fact, Zeaxanthin and lutein are the most prevalent carotenoids in the retina and macula of the eye. In addition to its specific role in eye health, zeaxanthin provides valuable protection for the whole body. |
|
|
Source Naturals Zeaxanthin, with Lutein, 10 mg, Capsules, 60 capsules (Pack of 2) by Source Naturals Dietary supplement. Antioxidant eye support. Zeaxanthin and Lutein, two powerful antioxidants found in fruits and vegetables, selectively concentrate in the retina of the eye to form the macular pigment. Maintaining healthy macular pigment levels may provide retinal protection against oxidative stress caused by normal UV exposure on the aging eye. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.) Contains no yeast, dairy, egg, gluten or wheat. Contains no salt, artificial color, flavor or fragrance. |
 |
Zeaxanthin w/ Lutein 60 caps by SOURCE NATURALS Zeaxanthin and Lutein, two powerful antioxidants found in fruits and vegetables, selectively concentrate in the retina of the eye to form the macular pigment. Maintaining healthy macular pigment levels may provide retinal protection against oxidative stress caused by normal UV exposure on the aging eye. * Picture may be of different size or flavor |
 |
Ultra Zeaxanthin (6mg) 30 caps by SOLARAY Solaray's Ultra Zeaxanthin (6mg) is an eye health formula. * Picture may be of different size or flavor |
 |
Life Extension, Super Zeaxanthin with Lutein & Meso-zeaxanthin Plus Astaxanthin - 60 softgels by Life Extension The eye is a highly complex organ that must safely harvest, control, focus, and react to light in order to produce vision. Light enters the anterior portion of the eye through the clear cornea and fluid-like aqueous humor, and is then focused by the clear lens before entering the gel-like vitreous. |
|
Zeaxanthin.(COSMECEUTICAL CRITIQUE): An article from: Skin & Allergy News by Leslie S. Baumann (Author) This digital document is an article from Skin & Allergy News, published by International Medical News Group on May 1, 2009. The length of the article is 1199 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser. Citation Details Title: Zeaxanthin.(COSMECEUTICAL CRITIQUE) Author: Leslie S. Baumann Publication: Skin & Allergy News (Magazine/Journal) Date: May 1, 2009 Publisher: International Medical News Group Volume: 40 Issue: 5 Page: 20(1) Distributed by Gale, a part of Cengage... | |
 |
ICaps Lutein and Zeaxanthin Formula Dietary Supplement Coated Tablets, 60-Count Bottles (Pack of 2) by ICaps ICaps Lutein and Zeaxanthin Formula Dietary Supplement 60 ct |
| © 2009 BrightSurf.com |