MULTIPLE PHOTO BIO MODULATION
Proper laser application will produce various reactions in organisms.
alive The laser energy will be absorbed by the tissue and cells, producing
an improvement in cellular metabolism via activation of the respiratory chain.
Cytochrome c oxidase is assumed as a possible photoreceptor when the
cells are irradiated with monochromatic red to radiation near IR and high power blue led.
Four primary mechanisms of action are activated:
1. Changes in the redox properties of respiratory chain components
2. Consequent photoexcitation of their electron states, generation of
enriched active oxygen, transient localized heat of absorbent chromophores,
3. Increase in the production of superoxide anions with the increase
subsequent in the concentration of the product of its dismutation, H202.
4. A cascade of reactions connected with the alteration in the parameters
of cell homestasis (pHi, [Cai], cAMP, Eh, [ATP] and some others) is considered co
mo a photosensal transduction and amplification chain in a cell (mechanism
Depending on the wavelength, the photonic energy will be absorbed by the tissue
and the cells.
Wavelength is important to penetrate deep into the tissue
Depending on the medium to be penetrated, it is successful to maintain an intensity of
relatively high energy However, in principle energy levels decrease
the depth at which the ray penetrates and the effect weakens.
Each type of tissue has different optical reactions
The depth of penetration is always dependent on the type of tissue.
Fat, bone muscles, react differently to different wavelengths.
During therapy take care that all clothing is removed from the area to be treated, since
that textiles considerably mitigate the effect.