Extraocular motoneurons of the adult rat show higher levels of vascular endothelial growth factor and its receptor Flk-1 than other cranial motoneurons
Fig 6
Facial and hypoglossal motoneurons express low levels of Flk-1 receptor.
Confocal microscopy images of facial and hypoglossal (HYPO) motoneurons (A, D; identified as ChAT-immunopositive) showing low levels of Flk-1 immunoreactivity (B, E). C and F represent the merge of VEGF and Flk-1 images. Insets show motoneurons of each nucleus at higher magnification. Scale bars = 100 μm (in C for A-C; in F for D-F). Inset scale bars = 25 μm.