Cancer cells and normal cells potentially use different food sources, Harris explained, and we discovered how cancer cells, specifically, break down this antioxidant and use it as fuel. The new role for glutathione is notable, Harris said, because until now, most scientists who study glutathione have focused on the way it can prevent or repair cell damage, rather than its ability to feed cancer cells
In response to the muscle damage and supplementation, circulating levels of free iron (that could possibly react to form hydroxyl radicals) were increased, lactate dehydrogenase and creatine kinase, markers of protein breakdown and damage, were elevated in the supplemented group as well as an increase in markers for oxidative stress
Such a genomic organization might offer several advantages
In this way, GH and insulin act in symphony with IGF-1 to produce a coordinated response