Why and how does light therapy offer neuroprotection in Parkinson's disease?

<正>Red and infrared light(λ=600–1,070 nm)therapy,known also as photobiomodulation,has been reported to offer neuroprotection and to improve locomotor behaviour in animal models of Parkinson’s disease,from rodents to non-human primates(Rojas and Gonzalez-Lima,2011;Hamblin,2016;Johnstone et al.,2016).The neuroprotective aspect of this therapy is particularly relevant;the saving of neurons that