In Vitro Measurement of Respiration of Choroid Plexus Cells in Communicating Hydrocephalus

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Abstract
Communicating hydrocephalus occurs as a result of inappropriate CSF production in the circumstance of diminished absorption. Ventricular enlargement does not progress as rapidly as the measured normal production of CSF would suggest. Thus, compensatory mechanisms must exist to respond in some manner to the altered pathophysiology. In this experiment the metabolic activity (O2 consumption) of the choroid plexus cells in animals with communicating hydrocephalus was compared with that of normals. The modified Cartesian diver technique of Zeuthen13 was employed. These preliminary measurements show that the metabolic activity of the choroid plexus cells was the same in hydrocephalic animals and normals. Response to experimentally induced increased CSF pressure also showed no difference.

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