#Acid
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MIT researchers have discovered that a naturally occurring amino acid found in many protein-rich foods may help the intestine repair itself after damage. Cysteine has long been known for its antioxidant properties, but this is the first study showing that it can directly stimulate intestinal stem cell regeneration. Researchers are also continuing to investigate the effects of other amino acids that showed signs of influencing stem cell behavior.

Changes in eyesight are one of the most common signs of aging. Their latest study investigates a potential treatment aimed at slowing or even reversing "aging" in the eye, while also helping prevent conditions such as age-related macular degeneration (AMD). "Our first study explored a potential therapy to address vision loss," says Skowronska-Krawczyk, "but with the information we've since learned about immune aging, we are hopeful the supplementation therapy will boost the immune system as well."