Expression of TNF-α and IL-1 in the glomeruli in dogs with or without visceral leishmaniasis. Expression of TNF-α in glomerular cells in non-infected dogs (A), and dogs with visceral leishmaniasis (B). Expression of IL-1α in glomerular cells in non-infected dogs (C), and in dogs with visceral leishmaniasis (D). Figures A and B. Bar = 25 μm. Figures C and D. Bar = 16 μm. Immunohistochemistry. Different molecules when present appear stained in brown.