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Fig. 5. Symphyseal type II collagen. Coronal sections (6 µm) of the `middle'
joint site in 4-month old U-diet (A) and O-diet (B) subadults stained with a
primary antibody directed against type II collagen. In the high-power views of
the ventral joint, darker staining in the FC pad of A vs B
demonstrates less type II collagen and thus lower viscoelasticity in O-diet
rabbits.