Figure 1.
ETS abnormal muscle fiber from a 21y male rhesus monkey. Consecutive slide sections stained for a) COX activity, b) SDH activity and c) dual stained for COX and SDH. Note the lack of COX activity in panel (a), hyper-reactivity for SDH in panel (b) and the characteristic blue against a brown background for dual stained sections. Black bar represents 50μm.