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Healing of purely ischaemic ulcers is characterised by vasculogenesis associated with increased presence of the proangiogenic cytokines PDGF and TGFbeta3. These findings show promise for the use of growth factor manipulation to aid healing in ischaemic ulcers.

Diabetic patients with critical limb ischaemia requiring amputation demonstrate a greater degree of plaque intimal neovascularisation and inflammatory infiltrate compared to their non-diabetic counterparts. This may explain the greater plaque instability and subsequent cardiovascular complications seen in these patients.

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