Direct Pathway to the Brain

Science  28 Feb 1969:
Vol. 163, Issue 3870, pp. 952-953
DOI: 10.1126/science.163.3870.952


Whole-body autoradiographic stuidies demonstrated that, when isotopically labeled glucose is placed in the ligated oropharynx, there is a rapid movement of the isotope directly to the intracranial cavity. This passage involves nonspecific diflision, bypassing all recognized rouctes to the brain.