| Abstract: | The immunohistochemical profile of intact and denervated soleus muscle of guinea pigs after sensibilization was studied. It is shown, that intact soleus muscle consists of slow fibers, which have low ATP-ase activity and don't react with monoclonal antibodies against fast myosin heavy chain. No changes of immunohistochemical profile were found after denervation or sensibilization. At the same time, the fibers, reacting with monoclonal antibodies against fast myosin heavy chain and having low ATP-ase activity, were found in denervated muscles after sensibilization. It is concluded, that the synthesis of fast myosin is induced after sensibilization of denervated muscles. Validity of myosin ATP-ase histochemistry for muscle fibers typing is discussed. |
