Elastica van Gieson staining of the cavernous body isolated from age-matched positive control rats and STZ-induced diabetic rats injected with AdGFP or AdNMB.

<p>AdGFP (STZ/AdGFP) and AdNMB (STZ/AdNMB) were injected into the penises of STZ-induced diabetic rats and the penises were harvested for Elastica van Gieson staining 4 weeks later. Age-matched non-diabetic rats were used as positive controls (PC). (A) The histology of the root portion of penis (longitudinal section) is shown. Bars are 300 μm. (B) The histology of the cross section of penis is shown. Arrowheads indicate the dorsal penile nerves. Bars are 300 μm.