Expression of the P2X2 receptor in different classes of ileum myenteric neurons in the female obese ob/ob mouse

Figure 1 Immunoreactivity for P2X₂ receptor (A, D, G, J), nitric oxide synthase (B, E), choline acetyltransferase (H, K; merged images C, F, I, L) was examined in ileum myenteric plexus neurons from the control group (A-C, G-I) and the obese ob/ob group (D-F, J-L). Single arrows show double-labeled P2X₂ receptor (P2X₂R)- and nitric oxide synthase (NOS)-immunoreactivity neurons in the control group (CG) (A-C) and obese group (OG) (D-F) groups. Double-labeling for P2X₂R and choline acetyltransferase (ChAT) in CG neurons (G-I) and OG (J-L) is indicated by arrowheads.