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Health Food MataSumber: Science and Technology News Topic: Food Tags: Glaucoma, carotenoids, cataracts, lutein, eye, sensory, UV radiation, vitamin E, zeaxanthin
The eye is the human senses are very important / important. Can you imagine if we had eye damage or blindness, we can not enjoy and feel the beauty of this universe. In fact, we often forget to make eye care, but like other parts of the body, the eyes may be affected by diseases or health problems. Disorder-disorder can be caused by air is not clean or dirty, radiation, sunlight, radiation, long before computers and other disorders.Studies on the prevalence of eye disease Research Group (2004 made) estimates that in 2020 the number of patients with eye diseases and blindness in the world will reach 55 million inhabitants. This study also noted that the increase of eye disease and blindness, especially for those who have been over 65 years. A person 80 years or more that 8% of the total population, suffer blindness as much as 69%.
Impaired general health of the eye that occurs is the reduction of visual function, red-eye symptoms, without reducing the role of visual loss, and a red eye with visual function. So far, the disease gets eyes cataract, glaucoma, and infections.
Along with increased awareness and knowledge of the influence of diet on health, especially the health of the eyes that is a rapidly growing market for products, eye health. Most devices for eye health, which is now marketed as supplements. In addition to the compounds antioxidants (Vitamins A, C and E), previously known to improve the health of the eyes, other compounds like lutein, zeaxanthin and astaxanthin, recently, as a link, the health of the eyes may improve known.
Lutein, a yellow carotenoid family of compounds found in many green vegetables. Lutein in the macula and is believed to protect the eyes against oxidative damage caused by ultraviolet radiation (UV).
Macula was at the center of the retina and into the lens of the eye. Macula is a small area with millions of cells that produce sharp vision to read or see objects clearly help.
Other compounds carotenoids in the macula is zeaxanthin, which are known to ensure the benefits for eye health.
Research by Chitchumroonchokchai and colleagues in 2004 conducted by Ohio State University, explains that lutein and zeaxanthin may protect human lens cells against exposure to UV light, which is a major cause of illness cataracts. They also compared the antioxidant activity of lutein and zeaxanthin as vitamin E. The results showed that lutein and zeaxanthin was 10 times higher activity compared with vitamin E in protecting cells from damage caused by UV light lens.
That same year, a study of a ring and his colleagues performed showed the ability of lutein and zeaxanthin in eye health. In animal tests sponsored by DSM Nutritional Products in Switzerland show that the addition or the addition of lutein and zeaxanthin increased activity of antioxidants in the blood.
Another group of carotenoid compounds in the ability of the macula, seems to protect against UV rays astaxanthin. Guerin et al. (2003) mentioned that the ability of anti-inflammatory antioxidants and astaxanthin can provide eye protection from UV rays.
So far, the supply of the antioxidant activity of compounds of lutein, zeaxanthin and astaxanthin mechanism responses to growing health of the eyes. Free radicals by UV light or air pollution, in the eye as a result of the oxidation of sensitive molecules in the lens of the eye.
These molecules are proteins and fats that make up the lens of the eye. The effects of this oxidation causes damage to proteins or fats in the lens of the eye. Along with increasing age and increasing pressure accumulation of free radicals, protein and fat, which is damaged or will be larger scale. This causes blurred vision and ultimately blindness.
Lutein, zeaxanthin and astaxanthin arrest free radicals (free radical activity) by binding with it before these radicals damage the eye lens protein and fat. In other words, lutein, zeaxanthin and astaxanthin may be cited as the protector of the lens from free radical attacks.
Carotenoids are yellow vegetables like carrots, orange, green vegetables such as broccoli and red fruits and yellow-orange, like tomatoes, strawberries, watermelon and mango. can meet regularly Thus, consumption of fruits and vegetables, the needs of lutein, zeaxanthin and astaxanthin per day. Among other effects of consumption of fruits and vegetables, increasing fiber intake of food is very good for health.
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