[Excitation profile of nerve carotenoids in stimulation and block]

Using resonance Raman spectroscopy (RRS) nerve carotenoids excitation profile at electric stimulation and block was investigated. It was found changes in intensities, position and relation 1526 and 1160 cm-1 RRS lines at stimulation and tetrodotoxin (10(-7) M) block. During rhythmic excitation two phase of dynamic of relation 1526/1160 cm-1 was found. The role of electrochromic effect on nerve carotenoids conformation at electrostimulation was discussed.