Blood-brain barrier

A protective barrier that separates the brain from the blood circulating across the body.

The blood-brain barrier is semipermeable, meaning it allows the passage of water as well as molecules like glucose and other amino acids that help promote neural function. Blood–brain barrier dysfunction contributes to pathology in a range of neurological conditions including multiple sclerosis, stroke, and epilepsy, and has also been implicated in neurodegenerative diseases such as Alzheimer’s disease. 

blood brain barrier

Image credit: https://www.neuroscientificallychallenged.com/blog/know-your-brain-blood-brain-barrier

 

Find out more about your blood-brain barrier

Learn how the blood-brain barrier protects your brain and what happens when it fails.

Blood vessels in the brain
Blood vessels in the brain
Distinguished Professor Sir Richard Faull's special interest in the basal ganglia and its role in Huntington’...
2 minute neuroscience
2 minute neuroscience
Watch a short video to get an overview of the blood-brain barrier and how it protects your brain.
How cancer cells enter the...
How cancer cells enter the...
What happens when the blood brain barrier fails? Find out how cancer cells make their way into our brains.
Brain Plasticity
Brain Plasticity
Research on brain plasticity including looking for treatments that can find their way across the blood-brain ...

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