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Enlarge ImageReversible? Compared to a healthy eye (left), an eye with glaucoma (right) shows evidence of damage to the optic nerve (white region). Credit: Lambiase et al./PNAS In people suffering from glaucoma, damage to the optic nerve can slowly degrade peripheral vision and, in the worst cases, eventually lead to blindness. But eyedrops containing nerve growth factor (NGF)--a protein that promotes the survival and growth of neurons in the developing brain--appear to prevent nerve damage in rats and restore some vision in three human glaucoma patients, the authors of a new study claim. Not everyone thinks the reported effect...

A research group from Bristol has found that a naturally occurring protein, known as nerve growth factor, can dramatically improve the survival of heart cells and reduce heart cell damage following a heart attack in mice. The researchers hope that this treatment could also benefit humans and prevent heart attack victims from suffering further damage to their heart muscle. Nerve growth factor - healing broken hearts Growth factors are naturally occurring molecules produced by the body to regulate cell division and cell survival processes. Some growth factors are known to influence many different cell types, whereas others are considered...