Immunoblots of rat brain extract probed with serum immunoglobulins.

<p>Cortex (A), hippocampus (B), and cerebellum (C) protein extracts were separated by SDS-PAGE and blotted with serum IgGs collected from cancer patients or non-cancer control subjects to determine the immunoreactivity at specific molecular weights. Representative blots show reactivity of 6 subjects in each group. The position of bands and their intensities show serum IgG autoantibody profiles are unique to individual subject.