FIG. 1.

Tongue myofibers show GFP fluorescence after intramuscular injection with AAV9-CBA-GFP. Transverse histological sections were taken through the base of the tongue and then examined by fluorescence microscopy. (A) GFP expression in tongue myofibers 8 weeks after injection with AAV9-CBA-GFP. (B) Absence of fluorescence in myofibers from a sham-injected mouse. The tissues were also stained with 4′,6-diamidino-2-phenylindole (DAPI; blue). Scale bars: 50 μm. Color images available online at www.liebertpub.com/hgtb