[The influence of photochromotherapy on the injured nerve under experimental conditions (a histological study)].

The objective of the present neurohistological study using an experimental model of compressive-ischemic neuropathy (40 white rats) was to estimate the influence of photochromotherapy on the injured nerve filament. It was shown that light of different wavelengths had differential effect on the nerve tissue. The exposure to blue light reduced the severity of traumatic lesion as apparent from a decrease in the number of filaments undergoing degenerative changes and their enhanced argentophilia. Irradiation with red light caused a marked decrease in the degree of vacuolization with moderate argentophilia suggesting normalization of ion transport and recovery of nerve conductivity. Green light irradiation promoted remyelinization of nerve filaments (a marked increase of the number of Schwann cells).

[Photochromotherapy of experimental compression-ischemic neuropathy]. / Fotokhromoterapiia éksperimental'noi kompressionno-ishemicheskoi nevropatii.

Effects of monochrome light of the green and red spectra (mean wave length 540 and 670 nm, respectively) were studied on experimental rat model of compression-ischemic neuropathy (40 animals). The nerve under compression was exposed to green and red light using light-diode physiotherapeutic unit "Spectr-LC" with different intensity. Electromyographic parameters of the compressed nerve improved significantly after exposure to monochrome green light with intensity 500 mJ/cm2. The effect was dose dependent. Green light produced better effect.