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. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: Neurobiol Dis. 2010 Mar 6;38(3):405–413. doi: 10.1016/j.nbd.2010.02.013

Figure 3. ATP activation of P2 purinergic receptors induces NPY expression in the OE through the whole nasal cavity.

Figure 3

(A–L) NPY-IR expression patterns are overlaid as white lines on representative cryostat sections at levels 3, 4 and 6 of the OE. Very little endogenous NPY-IR is observed in the vehicle/saline group (A–C). ATP induces NPY-IR expression in the vehicle/ATP group (D–F). NPY-IR expression patterns in PPADS/saline group is not different from vehicle/saline group (G–I) however, PPADS pre-treatment blocks ATP-induced increases in NPY expression (J–L).