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Printable Handouts
Navigable Slide Index
- Introduction
- Major transport interfaces in CNS
- Features of mammalian CNS barrier systems
- Topical presentation overview (1)
- The choroid plexus system
- Choroid plexus spurs brain development
- Ramifying choroidal fronds and villi
- Ultrastructure of choroidal epithelium
- Schematic reconstruction of villus from EMs
- Topical presentation overview (2)
- Choroid plexus hemodynamics/hydrodynamics
- CSF formation by choroid plexus
- Transport mechanisms in choroidal epithelium
- Pharmacologic modulation of CSF formation
- Neuroendocrine regulation of CSF formation
- Topical presentation overview (3)
- Distribution of choroidal secretions to brain
- Distribution of solutes from blood to brain
- CSF-borne growth factors
- A unique CSF transport pathway
- Disruptions in CSF homeostasis
- Topical presentation overview (4)
- Why study BCSFB permeability and its breakdown
- Quantifying the permeability of the BCSF barrier
- Hypertension disruption of BCSF barrier
- Hyperthermia damage to BCSF barrier
- Ischemia disruption of the BCSF barrier
- Topical presentation overview (5)
- Kidney-like functions of choroid plexus
- CSF turnover rate changes with aging
- Choroid plexus dwindling in late stages of life
- Loss of CSF sink action
- Translational research opportunities
- Conclusions
Topics Covered
- Choroid plexus
- Formation of CSF
- Permeability of blood
- CSF barrier vs. blood-brain barrier
- Choroidal secretion of peptides, growth factors and regulatory proteins
- Homeostasis and bulk flow of extracellular fluid in the CNS
- Impact of CSF dynamics on brain metabolism
- Disrupted transport at the blood-CSF interface in hyperthermia, ischemia and Alzheimer's disease
- Reduced CSF reabsorption in aging, hydrocephalus and dementia
Talk Citation
Johanson, C. (2008, March 1). Features of mammalian CNS barrier systems [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved April 15, 2025, from https://doi.org/10.69645/FOKY4477.Export Citation (RIS)
Publication History
Financial Disclosures
- Prof. Conrad Johanson has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.