Figure 3. Immunostaining illustrated region-dependent and age-related changes in the expression of NP markers.
(A) Basp1; (B) Ncdn; (C) Nrp-1; (D) CD221 in rat IVD tissues at different ages (1 m, 12 m and 21 m). Bar: 20 µm; m: month. (TIF)
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