Fig. 3From: Low-intensity pulsed ultrasound irradiation attenuates collagen degradation of articular cartilage in early osteoarthritis-like model miceImmunofluorescent staining against lubricin (green) and type II collagen (red) in the articular cartilage sections. Lubricin-positive cells were counted. Values are expressed as mean ± standard error of the mean (SEM), n = 4; * = p < 0.05. (Scale bar: 100 μm)Back to article page