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. Author manuscript; available in PMC: 2017 Jan 1.
Published in final edited form as: J Comp Neurol. 2015 Jun 25;524(1):74–89. doi: 10.1002/cne.23823

Figure 1.

Figure 1

Immunoreactivities for glucagon and Glucagon-Like Peptide 1 (GLP1) are present in retinal amacrine cells and neurites clusters in the retinal margin. Sections were obtained from the eyes of anoles (A,B), garter snake (C), queen snake (D), painted turtle (E,H), snapping turtle (F) and chicken (G). Sections of the retina were labeled with antibodies to GLP1 (A,C–G; green) or glucagon (B; magenta). H–J; Whole-mounts of the painted turtle retina were labeled with antibodies to GLP1 (green) and TH (magenta). Arrows indicate amacrine cells labeled for glucagon/GLP1, and hollow arrow-heads indicate TH-positive amacrine cells. The scale bar (50 μm) in panel G applies to A–G, and the bar in J applies to G and H. Abbreviations: ONL – outer nuclear layer, INL – inner nuclear layer, IPL – inner plexiform layer, GCL – ganglion cell layer, RM – retinal margin, CB – ciliary body, TH – tyrosine hydroxylase.