Silencing a gene called Nrl in mice prevents the loss of cells from degenerative diseases of the retina, according to a new study. The findings could lead to novel therapies for preventing vision loss from human diseases such as retinitis pigmentosa.
The breast cancer drug tamoxifen appears to protect light-sensitive cells in the eye from degeneration, according to a new study in mice. The drug prevented immune cells from removing injured photoreceptors, the light-sensitive cells of the retina in the back of the eye.
Researchers at Vanderbilt University in Nashville, Tennessee, have discovered that in zebrafish, decreased levels of the neurotransmitter gamma-aminobutyric acid (GABA) cue the retina, the light-sensing tissue in the back of the eye, to produce stem cells.