Immunohistochemistry analysis of inflammatory related proteins (n=3). (a), (c), (e), (g) Representative images of immunostained aortic cross-sections by specific antibodies against TNF-α, ICAM-1, VCAM-1 and MOMA-2, respectively (20× magnification; blue color signs nuclei, red or green color signs target protein). (b), (d), (f), (h) Densitometric quantification of TNF-α, ICAM-1, VCAM-1 and MOMA-2, respectively. C: chow diet group; HF: high-fat diet model group; Q: quercetin group; QN: quercetin and N-acetylneuraminic acid combination group; N: N-acetylneuraminic acid group. The data are presented as mean±SD. ## means p<0.01 vs control; * means p<0.05 vs HF and **means p<0.01 vs HF; & means p<0.05 vs quercetin. All of the statistical symbols and the abbreviations are suitable for Fig. 2.