Fig. 5From: Noise exposure alters MMP9 and brevican expression in the rat primary auditory cortexThe perineuronal nets (PNNs) in the primary auditory cortex. The numbers of PV + WFA- and brevican-positive cells per 350 × 250 mm2 were decreased in the noise group compared with the control group. White arrow indicated co-localized cells. (*P < 0.05)Back to article page