Fig. 6

Representative images of gastrocnemius muscle sections from non-PAD and PAD subjects stained for LC3, an autophagosome marker (red) and LAMP2, a lysosome marker (green). A In non-PAD, very little LC3 and LAMP2 staining is apparent. In PAD, rare fibers show co-localization of accumulated LC3 and LAMP2 (B), whereas the majority of fibers have elevated LC3 accumulation but no co-localization with LAMP2 (C). Arrows in the same column point to the same areas of LC3 accumulation in the center of the fiber with or without LAMP2 co-localization. Scale bar = 50μm