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Fig. 2
Microglial morphologies in the olfactory bulb.
Microglia in the olfactory bulbs can transform from a “ramified, resting” sensorial cell (A) through a “transitioning” morphology (B) to an “amoeboid, actived" phagocytic state (C, arrow) in 3 types of morphologies evident with 4C4 labeling. Olfactory bulbs of an untreated control fish (D) labeled with 4C4 antibody showed comparable levels of 4C4-ir in both olfactory bulbs, and most profiles exhibited the ramified morphology (arrows). Scale bar =20 μm for A, B, C; 100 μm for D.
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