Figure 3From: Neuroinflammation mediated by IL-1β increases susceptibility of dopamine neurons to degeneration in an animal model of Parkinson's diseaseRepresentative coronal sections of microglia in the ventral midbrain at the level of the substantia nigra (SN) visualized by CD11b-immunoreactivity (-ir). (A) activated microglia in the SN of a rat injected in the SN with LPS 12 days prior and (B) the contralateral side. (C) low level of microglia activation 12 days following an intra-striatal injection of 6-OHDA (5.0 μg) and (D) the contralateral side showing resting microglia. Insets are 20× images taken from the area outlined in lower magnification pictures. Scale bar of inset, 100 μm; scale bar of low magnification images (2.5×), 1.0 mm).Back to article page