Medical research

Researchers uncover signal needed for blood-brain barrier

What makes the vital layer of protective cells around the brain and spinal cord—the blood-brain barrier—more or less permeable has been one of the more mystifying questions in neuroscience.

Medications

EU watchdog's rejection of ALS drug angers patients

The European Union drug watchdog's refusal to approve an ALS drug already authorized in North America has been called "an affront" by angry French patients, who say they "don't have time to wait".

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