blood cells enter the cerebrospinal fluid

Kalman Rubinson kr4 at
Tue Oct 5 09:44:53 EST 1999

Dan-solo (dotoole at NOSPAM! wrote:
> >In article <7t9fd4$4cq at>, "MJ Lee" <mjlee at> wrote:
> >
> >Can blood cells pass through BBB and enter the cerebrospinal fluid?
> >thanks!
> >
> .
> Blood resident lymphocytes can break through the BBB during a Multiple
> Sclerosis relapse, where they are directed to inflammation sites by IL-10.
> I don't think this normally ever happens though. As far as I know,
> macrophages can do the same thing. I'd imagine that any oxygen required by
> the neuron is provided via the  astrocyte, as there are no RBCs in CSF.

But there are RBCs in the brain capillary bed.



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