The space between the arachnoid and pia meningeal layers encasing the brain is a landscape of connective tissue, blood vessels, and cerebrospinal fluid. Scientists debate how that fluid moves within ...

A novel blood and cerebrospinal fluid (CSF) measure showed promise as a biomarker for Parkinsonian disorders. CSF levels of DOPA decarboxylase (DDC) -- an enzyme that converts levodopa into dopamine - ...