Figure 9. Immunofluorescence staining of AKR1C3, POLE4, MCEE, and PFKM in mouse knee joints and NMR 2D Tocsy spectra of human meniscus tissue. (A) Immunofluorescence staining of AKR1C3 in both groups of mice. (B) Immunofluorescence staining of POLE4 in both groups of mice. (C) Immunofluorescence staining of MCEE in both groups of mice. (D) Immunofluorescence staining of PFKM in both groups of mice. (E) NMR 2D Tocsy spectrum of meniscus tissue from RA patients. (F) NMR 2D Tocsy spectrum of normal meniscus tissue.