Fig. 6From: Chronic oxycodone induces integrated stress response in rat brainOxycodone increases BiP but not ATF4 and PDGFRα expression in cerebral cortex and hippocampus. a Immunohistochemical analysis of BiP, ATF4, and PDGFRα in cerebral cortex of rats treated with water (W) or oxycodone (O). Scale bar denotes 50 μm. b Immunohistochemical analysis of BiP, ATF4, and PDGFRα in hippocampus of rats treated with water (W) or oxycodone (O). Scale bar denotes 50 μmBack to article page