"It's as if the brain has two garbage haulers - a slow one that we've known about, and a fast one that we've just met," said Nedergaard. "Given the high rate of metabolism in the brain, and its exquisite sensitivity, it's not surprising that its mechanisms to rid itself of waste are more specialized and extensive than previously realized."
While the previously discovered system works more like a trickle, percolating CSF through brain tissue, the new system is under pressure, pushing large volumes of CSF through the brain each day to carry waste away more forcefully. "
http://www.medicalnewstoday.com/releases/249072.php=======================================================================
* My thoughts on this are that the areas of CSF surrounding Arteries in particular will pump/pulse CSF because of the limited space that is between the vein and the wall that is containing the CSF. A mini pumping system because of the small tolerances, this would speed the flow of the CSF compared with areas elsewhere that have more clearances in their purpose of that area. Eg for the cushioning effect of CSF in cisterns and other parts of the skull.
So CSF would have different speeds and 'maybe' pressures around the brain depending on the clearances in the passage ways and the pulsing of the Arteries which would be the primary source of energy for the dynamic to happen all around the Brain/Skull and then on to the Spinal cord.?
**Could the building pressure of CSF be the KEY issue? Is it possible that the pressure of CSF all around the Brain/Skull/Cord is meant to be 'equal' the flow speed can vary in regions of the system without issue as long as the pressure is constant. Increased pressure causes ? Drain system of CSF effected by ?**
Again in my mind this comes back to why do symptoms change rapidly after PTA? The change in pressure or back flow or reflux is effecting something that is dependant on a natural or normal flow. The change in symptoms is about the change in flow and or pressure on a system in the brain that can vary or adjust without a permanent status of 'damaged'. Is the change of PTA also a change in the draining of CSF?
This is likely to be again multi factorial, the lesions seen, the symptom changeability of RRMS, the progression faze, PTA symptom changes, AO adjustment flow changes, CPn bacteria treatments.
What enables the rapid change in the symptoms is what will bring us closer still!
Too tired now, had a fantastic morning over at the Beach/Coast with Sage. She swam, fetched sticks, met the locals and had a great time, as did I!
Regards,
Nigel