Figure 3From: Sensory and sympathetic nerve fibers undergo sprouting and neuroma formation in the painful arthritic joint of geriatric mice Histograms showing the changes induced by CFA injection into the geriatric knee joint. Volume of synovium (mm3) (A), density of PECAM+ blood vessels (B), but not the density of CD68+ macrophages per unit area (C) were increased 4 weeks after initial CFA injection. Each bar represents the mean ± SEM. *P < 0.05 versus mice that received intraarticular injections of saline as vehicle.Back to article page