Fig. 3From: NLRP1 inflammasome involves in learning and memory impairments and neuronal damages during aging process in miceEffects of aging on changes of Nissl bodies in the cortex and hippocampus in mice (Nissl staining, 400 × , scale bar = 20 μm). A The results of Nissl staining in the cortex, hippocampus CA1 and CA3 in 6 M, 16 M, 20 M and 24 M mice. B The mean density of Nissl bodies in the cortex. C The mean density of Nissl bodies in hippocampus CA1. D The mean density of Nissl bodies in hippocampus CA3. Results are expressed as mean ± SD, n = 4. *P < 0.05, **P < 0.01 vs the 6 M control. AU presents an arbitrary unitBack to article page