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. 2013 Jan 23;109(7):1979–1988. doi: 10.1152/jn.00852.2012

Table 1.

Percentage of RGCs and other retinal cells labeled with GCaMP3 following intravitreal injection

AAV2-CAG AAV2/1-SYN1 P Value
RGCs labeled, % 82.9 ± 9.2 75.4 ± 7.5 0.14
Labeled cells that were not RGCs, % 14.7 ± 7.6 17.6 ± 3.9 0.39
Labeled cell density, cells per square millimeter 1,813 ± 343 1,553 ± 367 0.24
No. counted cells 2,714 1,492

Percentages indicate means ± SD. Cells were counted in regions with dense genetically encoded calcium indicator GCaMP3 labeling. We counted 8 400- × 400-μm regions from 2 retinas transduced with AAV2-CAG-GCaMP3 and 5 400- × 400-μm regions from 2 retinas transduced with AAV2/1-SYN1-GCaMP3. Retinal ganglion cells (RGCs) were identified after retrograde loading with Alexa Fluor 594. P values imply no significant differences between the labeling profile of each vector.