Figure 7From: Bilateral central pain sensitization in rats following a unilateral thalamic lesion may be treated with high doses of ketaminePhotomicrograph of the collagenase lesion after GFAP immunohistochemistry in a brain section following a collagenase solution injection in VPL nucleus of the thalamus. Presence of astrocytosis (filamentous structures) is visible in the lesioned area. Mineralization (dark blue granular deposits) can be observed surrounding the lesion (lower part of the photomicrograph). (x60).Back to article page