Histopathology on individual animals.

This table shows the lesions that were quantified in the pons, medulla, cervical cord and lumbar cord. Briefly cross sections of these areas were examined for the presence of gliosis and perivascular cuffing. One section each was evaluated for the pons and medulla. Two sections were evaluated for each area of the spinal cord. Total numbers of glial nodules were counted in each section. If more than one section was evaluated the counts for these sections were averaged. For pervascular cuffs, 3 areas were examined in each section and 10 vessels were counted in each area. The number of vessels that contained inflammatory cells was divided by the number 10. Each area per section was averaged.