--would be expected in people with certain types of neuropathies--especially ones that are autoimmune related--but they wouldn't always show up.

My reading seems to imply an elevated C-reactive protein would be more likely to be characteristic of an inflammatory process that primarily attacked myelin, such as in chronic inflammatory demyelinating polyneuropathy or Guillain Barre, but it could also show up in those autoimmune vascular/connective tissue conditions, such as lupus, Wegener's, Sjogren's, Rheumatoid arthritis, scleroderma, etc., in which neuropathy might be secondary.

I don't think it actually causes neuorpathy--it's more likely both an elevated level and the neuropathy are secondary effects of a more primary process.