Representative images of PGP 9.5 immunolabelling of grafted cross sections. The sham-operated group showed high levels of immunoreactivity (IR), indicative of the maintenance of peripheral nerve fibres, which were localised immediately below the epithelial layer (ep, top panel) and within muscularis (sm, lower panel). Following Gynemesh™ PS (A) and Ultrapro™ parallel implantation, the nerve morphology of nerve fibres in the muscularis was altered, and nerve density was significantly reduced. Scale bars: 250 μm.