Figure 7

Tachykinin-like immunoreactivity in nerve fascicles. Nerve fascicles and parts of nerve fascicles (N) of sections from gastrocnemius (A-C, E, F) and soleus (D) muscle specimens are shown. The sections were processed for demonstration of tachykinin-like immunoreaction (A-E). In (F) the reaction pattern after preabsorption with SP peptide is shown (the region in F corresponds to the region in E). The antibodies applied were sc-14104 (A-C, E) and 8450–0505 (D). The specimens were from the control group (A, B, E, F) and from the 6w group, non-exercised side, focal myositis area (C, D). There are immunoreactivities in nerve fascicles in the form of punctuate reactions (arrows A, C-E). These are grouped, as especially seen in (C), but also to some extent in (D). There are no reactions in the nerve fascicle in (B), which is built up of myelinated nerve fibers, and in the control section in (F). MF refers to muscle fibers. Magnification x200 (B, C), x315 (A, D, E, F).