Figure 3: Alpha-Gal epitope distribution in two different samples (A-B and C-D) of glutaraldehyde-fixed equine pericardial patch material by immunofluorescence analysis. Magnification 20× for A and C; magnification 40× for B and D. Anti-alpha-Gal monoclonal antibody M86 - red; Nucleic acid material - blue; Matrix autofluorescence - green.