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. Author manuscript; available in PMC: 2008 Jun 11.
Published in final edited form as: Hear Res. 2006 Feb 8;213(1-2):64–78. doi: 10.1016/j.heares.2005.11.011

Fig. 9.

Fig. 9

GTTR uptake in tongue and vibrissae. (A) In the tongue, GTTR fluorescence is present in filiform (sh=rtrif) and fungiform (f) papillae (the latter has a ring of labeled gustatory neurons; r in inset) within 3 h of GT/GTTR injection. (B) Within 24 h, GTTR fluorescence is diminished, particularly in fungiform papillae. By 3 days post-injection, linguinal tissues only weakly retain GTTR fluorescence (C) above background, non-specific fluorescence levels (D). (E) The tissues surrounding the vibrissae on the muzzle are rapidly infiltrated with GTTR fluorescence within 3 h, but this had largely cleared 3 days later (F). (G) Vibrissa displaying weak, non-specific fluorescence 3 h after injection of hydrolyzed TR only. Scale bar in D applies to A–C. Scale bar in G applies to E and F.