Fig. 4. eNOS regulates pericyte recruitment and VSMC coverage.

(A and B) Retinas from the wild type and eNOS knockout mice at P6 were stained with IB4 (blue) and either pericyte marker protein (NG2, red, panel A) or VSMC marker protein (SM22α, red, panel B). Images were visualized under a confocal microscope at ×40 magnification. Scale bars, 100 µm.