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Figure 4 | Journal of Brachial Plexus and Peripheral Nerve Injury

Figure 4

From: Differential cellular FGF-2 upregulation in the rat facial nucleus following axotomy, functional electrical stimulation and corticosterone: a possible therapeutic target to Bell's palsy

Figure 4

Color microphotographs showing FGF-2 and GFAP immunoreactivities in coronal sections of rat facial nucleus. Animals were submitted to the transection of the facial nerve (with amputation of the nerve stumps, A, or sham operation, B), 7 days before sacrifice. The two-color immunoperoxidase method employing different chromogens was used. The diaminobenzidine (brownish color) and the 4-chloro-naphthol (bluish color) were used for detection of the fibroblast growth factor-2 (FGF-2) and glial fibrillary acidic protein (GFAP) immunoreactivities, respectively. Arrowheads show FGF-2 immunoreactivity in the nuclei of the GFAP immunoreactive astrocytes. It is also seen the FGF-2 immunoreactivity in the cytoplasm of neurons (arrows). Bars = 10 μm.

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