Research Article

Pathological Tendon Histology in Early and Chronic Human Patellar Tendinopathy

Figure 3

Multiplex immunostained longitudinal patellar tendon biopsy sections from healthy controls (CTRL), patients with early tendinopathy (ET), and patients with chronic tendinopathy (CT). Scalebar: 20 µm. (a) It shows staining for PDPN (green), ERV1 (red), and ALOX12 (purple). (b) It shows staining for PDPN (green), 15PGDH (red), and COX2 (purple). Nuclei (blue in 3(a) and 3(b)).
(a)
(b)