News for the Multiple Sclerosis Community

CSF and Serum Oligoclonal Bands in MS

This study looked at CSF and serum (blood) oligoclonal bands (OCB) in 424 people with MS. They noticed some interesting patterns I don't remember seeing before - notably that most people with PPMS showed OCB in serum and CSF, but most RRMS/SPMS showed only in CSF. More data that this probably isn't a single disease.

Probably because in PPMS there is a breakdown in the blood brain barrier. In RRMS/SPMS, cytokines and other immune cells are basically trapped in a brain version of a "roach motel"--they can check in, but they can't get back out.