Before our brains build a visual image of our world, a chain of cells in our eyes must convert light into electrical signals that are processed in the brain. Photoreceptor cells in the retina represent the first link in this chain, and they are reactive to photons, or the fundamental particle of visible light. Retinitis pigmentosa causes these cells to degenerate, and patients with this …
photoreceptor cells
Scientists Successfully Apply Gene Therapy against Retinitis Pigmentosa
A collaboration between scientists in the UK and the USA has shown that gene therapy can give life-long protection to the light-sensitive photoreceptor cells responsible for colour vision in a mouse model of the most common inherited eye disorder. These findings are significant because they open up a new line of research to prevent nerve cell death in retinitis pigmentosa and age-related …
New drug candidate is promising therapeutic option for angiogenic retinal diseases
A research team led by scientists at Beth Israel Deaconess Medical Center (BIDMC) and the University of New Mexico School of Medicine has identified a small molecule that treats animal models of aged macular degeneration (AMD) and retinopathy of prematurity (ROP) by preventing the overgrowth of blood vessels that are characteristic of these two retinal diseases. The new findings, described in the …
Preserving photoreceptor cells following retinal injury: Inhibition of alternate complement pathway revealed
Retinal detachment can occur as a result of either blunt trauma or as a side effect of a variety of ophthalmic diseases, including diabetic retinopathy, ocular tumors, and age-related macular degeneration. There is a significant increase in the immune system's 'alternative complement pathway' following retinal detachment, researchers report, adding that this pathway facilitated early …