Fig. 6.
Fibronectin expression by immunofluorescence. A: control negative slide incubated with primary antibody but without secondary antibody (×20). B: representative photomicrograph of a sham-operated rat showing low interstitial expression of fibronectin (×20). C: representative photomicrograph from a 5/6Nx rat showing increased interstitial expression of fibronectin (×20). D: representative photomicrograph from a 5/6Nx + Nic rat showing increased interstitial and glomerular expression of fibronectin (×20). E: representative photomicrograph from a 5/6Nx + Nic + MLA rat showing reduced expression of fibronectin compared with 5/6Nx + Nic (D; ×20). F: representative photomicrograph from a Sham + Nic rat showing no change in the expression of fibronectin (×20).