Figure 2From: Diosgenin, a plant steroid, induces apoptosis in human rheumatoid arthritis synoviocytes with cyclooxygenase-2 overexpressionMorphologic changes in human rheumatoid arthritis fibroblast-like synoviocytes. Cells were incubated without (a) or with 40 μM diosgenin for 24 hours (b), 48 hours (c), or 72 hours (d). Original magnification ×400.Back to article page