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Stories/From Our Labs

Science pic: Building a barrier

By
Eric Bender
May 21, 2015

Located in the back of the eye, the blood-retinal barrier regulates the flow of nutrients into light-sensing tissue.
Amy Jensen/Novartis

Located in the back of the eye, the blood-retinal barrier regulates the flow of nutrients into light-sensing tissue. Researchers in NIBR’s Ophthalmology group study how this barrier functions in development and in health, and how it breaks down in major eye diseases such as age-related macular degeneration and diabetic retinopathy.

Unlike humans, mice are born without the barrier, and scientists can watch it assemble during the first few weeks of their lives. The blood vessels grow in along networks of astrocytes—the neural supporting cells that provide the vessels with metabolic information. Vascular supporting cells called pericytes are recruited later.

This image shows the retinal blood vessels (green) spreading out radially from the optic nerve of a mouse eye. Pericytes appear in red and astrocytes in blue.

Tags: 
Biomedical Research, Novartis Institutes for BioMedical Research, New Scientific Discoveries, Eye Disorders

Eric Bender

Eric Bender

has written about science ranging in scale from RNA to the outer heliosphere. During his spare time, he messes about in boats (in the summer) and shovels (in the winter).

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