Effect of chronic Pb exposure on dendritic mushroom spines in rat brain with brain regions differences and age differences.

<p>The number of mushroom spines in hippocampal neurons at PND30, PND60, PND90, respectively (A). The number of mushroom spines in mPFC at PND30, PND60, PND90, respectively (B). Blow the histogram: dendritic spines stained with the Golgi-cox (Scale bar = 10μm). Data are expressed as mean ± SEM. **P<0.01, ***P<0.001. Scale bar = 10μm. n = 16 per group.