Fig. 6

Representative images of staining by immunoblotting and immunohistochemistry in the colon of pigs. a, immunoblotting of Toll-like receptor 4 (TLR4), Nucleotide-binding oligomerization domain protein 1 (NOD1), Nuclear factor-κB (NF-κB) p65 and G-protein coupled receptor 43 (GPR43) protein. b, immunohistochemical staining of mucin-4 (MUC-4) (magnification: × 100). Values are means ± SEM (n = 7). LPA: Low-protein diets supplemented with free amino acids. LPC: Low-protein diets supplemented with casein hydrolysate