Figure 2. Expression of EpoR in the retinal nuclear layers. Semiquantitative real-time PCR after laser capture microdissection showed relative EpoR mRNA levels in the different retinal layers (as indicated) of the EpoR^flox/flox control mice. Values were normalized to actin beta (Actb) and expressed relative to the value in the ONL, which was set to 1. Shown are the mean ± standard deviation (SD) of at least two mice amplified in duplicate. ONL, outer nuclear layer; INL, inner nuclear layer; GCL, ganglion cell layer.