Furthermore, immunostaining for markers of enzymes implicated in inflammation (PDPN/15PGDH/COX2) and receptors and enzymes implicated in resolution (PDPN/ERV1/ALOX12) revealed expression of these proteins in early tendinopathy (Figures 3(a) and 3(b)). The gene discussed is PDPN; the disease is disease of the tendon.