Retinal Damage may avoid by A Cup of Coffee: Study

Its time to rejoice! for coffee drinkers

 Its time to rejoice! for coffee drinkers, 
The food scientists say that a cup of coffee may helpful in prevention of deterioration of eyesight and possible blindness from retinal degeneration of due to glaucoma.

According to study published in Journal of Agricultural and Food Chemistry (December 2013). A raw coffee , just 1 percent caffeine, but exist 7 to 9 percent Chlorogenic Acid (CLA), an antioxidant that prevent retinal degeneration in mice.

The retina is a thin tissue layer, present at back wall of the eye with millions of light sensitive cells and other nerve (cranial) cells that helps to to organize visual information.. Other than this, it is an metabolically active tissues, demanding high levels of oxygen and making it prone to prone oxidative stress.
The depletion of oxygen lead to production of free radicals and later cause tissue damage and loss of sight.

In process,mice eyes treat with nitric acid(HNO3) may cause generation of free radicals and lead to retinal degeneration, but a mice pretreated with CLA developed no damage to retina.

The study is "important in understanding functional foods, that is, natural foods that provide beneficial health effects," said Chang Y. Lee, professor of food science and the study's senior author.
"Coffee is the most popular drink in the world, and we are understanding what benefit we can get from that," Lee said.

In fact previous studies have shown that coffee also cuts the risk of such chronic diseases as Parkinson's, prostate cancer, diabetes, Alzheimer's and age-related cognitive declines

Since scientists know that CLA and its metabolites are absorbed in the human digestive system, the next step for this research is to determine whether drinking coffee facilitates CLA to cross a membrane known as the blood-retinal barrier. If drinking coffee proves to deliver CLA directly into the retina, doctors may one day recommend an appropriate brew to prevent retinal damage. Also, if future studies further prove CLA's efficacy, then synthetic compounds could also be developed and delivered with eye drops. 





Source:
Journal of Agricultural and Food Chemistry