(B) Representative images of single-molecule FISH (smFISH) in either control or 48 h PTX-treated rat hippocampal neurons (DIV20) using probes specific for Add2, Dnajc6 and Sort1 (green). MAP2 immunostaining (red) was used to visualize neuronal somata and dendrites. Inserts at higher magnification illustrate PTX-dependent changes in dendritic RNA puncta. Scale bar = 10 μm. (C) Quantification of B. (n=3-4 independet biological replicates with 8-10 cells averaged per condition and replicate; two-sample Student's t-test; *p < 0.05; **p < 0.01). B 