Photobiomodulation Affects Key Cellular Pathways of all Life‐Forms Considerations on Old and New Laser Light Targets and the Calcium Issue

They underline that cellular pathways that are key points of cell life, and present from very early stages of evolution, are involved in photobiomodulatory sensitive responses, like for example the mitochondria chromophores (also present on the bacterial membrane), the calcium channels, the transient receptor potential ion channels family (whose genes have been found in protozoa), or water itself.