Blood-Brain Barrier: Evidence for Active Cation Transport between Blood and the Extracellular Fluid of Brain
- 4 July 1969
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 165 (3888) , 81-83
- https://doi.org/10.1126/science.165.3888.81
Abstract
The concentration gradients of Mg++ and K+ in the cerebrospinal fluid system indicate that the (Mg++) is higher and the (K+) is lower in the extra-cellular fluid of the cerebral cortex than the concentrations of these cations in either plasma-dialysate or cisternal fluid. Such cation distribution demonstrates the existence of an active transport process across the blood-brain barrier.Keywords
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