Immunohistochemical glomerular staining for type I collagen
(A–D), type
IV collagen
(E–H),
α-SMA
(I–L), and
TGF-β1
(M–P) in
normal control rats (A, E,
I, and M), disease control
rats (B, F, J,
and N), OCT-treated rats
(C, G, K, and
O) and
1,25(OH)2D3-treated
rats (D, H, L,
and P).