A balanced view of choroid plexus structure and function: Focus on adult humans.

A balanced view of choroid plexus structure and function: Focus on adult humans. Exp Neurol. 2015 Mar 4; Authors: Spector R, Keep RF, Robert Snodgrass S, Smith QR, Johanson CE Abstract Recently tremendous progress has been made in studying choroid plexus (CP) physiology and pathophysiology; and correcting several misconceptions about the CP. Specifically, the details of how CP, a locus of the blood-CSF barrier (BCSFB), secretes and purifies CSF, generates intracranial pressure (ICP), maintains CSF ion homeostasis, and provides micronutrients, proteins and hormones for neuronal and glial development, maintenance and function, are being understood on a molecular level. Unequivocal evidence that the CP secretory epithelium is the predominant supplier of CSF for the ventricles comes from multiple lines: uptake kinetics of tracer (22)Na and (36)Cl penetration from blood to CSF, autoradiographic mapping of rapid (22)Na and (36)Cl permeation (high permeability coefficients) into the cerebroventricles, CSF sampling from several different in vivo and in vitro CP preparations, CP hyperplasia that increases CSF formation and ICP; and in vitro analysis of CP ability to transport molecules (with expected directionality) and actively secrete fluid against an hydrostatic fluid column. Furthermore, clinical support for this CP-CSF model comes from neurosurgical procedures to remove lateral ventricle CPs in hydrocephalic children to reduce CSF format...
Source: Experimental Neurology - Category: Neurology Authors: Tags: Exp Neurol Source Type: research