--are some of those autoantiboides the ones that have been discovered that specifically attack peripheral nerves, such as the ones listed here:

http://www.neuro.wustl.edu/neuromusc...oantibody.html

A lot of rheumatologists (and neurologists) are not familiar with the GM, GQ, GD series antibodies, or even sometimes the ant-MAG/anti-sulfatide ones. I've spoken with a few who do test for the different permutations of the anti-nuclear antibody (double stranded, speckled, etc.) but who I had to refer to this and other sites to get them up to speed on the more specific nerve autoantibodies.