Figure 3From: Millicurrent stimulation of human articular chondrocytes cultivated in a collagen type-I gel and of human osteochondral explants Collagen type-II immunostaining of in-vitro cultivated specimens. Immunohistological staining of collagen type-II protein in cell-seeded collagen gel samples left untreated or stimulated by millicurrent treatment after 1 and 3 weeks of in-vitro cultivation. Collagen type-II was detected mainly pericellularely. Original magnification ×630.Back to article page