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Fig. 9. Blockade of endogenous RA synthesis inhibits forebrain SVZ cell
proliferation. (A,B) Coronal sections through the anterior SVZ show confocal
images of BrdU immunostaining after treatment of mice with vehicle (Veh, A) or
disulfiram (DS; B) daily from P7-10. A single BrdU injection was administered
6 hours after the first DS/Veh injection. DS treatment decreases SVZ BrdU
labeling compared with Veh. Insets in A and B are high magnification images of
PSA-NCAM (left panels) or merged PSA-NCAM/BrdU double immunolabeling (right
panels) showing that most BrdU-positive cells (red) in the SVZ are
PSA-NCAM-positive (green) neuroblasts. (C) Quantification of BrdU
immunoreactivity in a fixed dorsolateral SVZ area shows decreased BrdU
labeling in the SVZ of DS-treated mice compared with controls.
**Denotes P<0.01. Scale bars: 50 µm for A,B; 20
µm for insets.