Carnosic Acid, Found in Rosemary, Aids in Eye Health

A scene as it might be viewed by a person with...

A scene as it might be viewed by a person with age-related macular degeneration. (Photo credit: Wikipedia)

Researchers from Sanford-Burnham Medical Research Institute discovered that carnosic acid, which is found in the herb rosemary, protects retinas from degeneration and toxicity.  This means that carnosic acid could be a possible treatment for medical conditions of the outer retina, including age-related macular degeneration.

These scientists investigated carnosic acid protective qualities in two ways:

  • They exposed cell cultures grown in Petri dishes to hydrogen peroxide. This exposure causes oxidative stress, which is believed to accelerate disease progression in eye conditions. The cells treated with carnosic acid activated the production of antioxidant enzymes, which decreased the level of free radicals and peroxides that damage cells.
  • They treated rodents with light-induced damage to photoreceptors with carnosic acid. The photoreceptors change light that enters the eye into electrical signals and this results in the formation of representations of objects being viewed. The rodents that were pre-treated with carnosic acid maintained a thicker outer nuclear layer in the eye, meaning that their photoreceptors were being protected from damage.






~ by chasm63 on November 29, 2012.

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