Reactive oxygen species: Fueling or putting the brakes on inflammation?

Reactive oxygen species (ROS) are important signalling molecules in an organism’s regulation of metabolism and inflammation. Accumulation of ROS have been linked to neurodegeneration and cancer. Researchers in Sweden now reveal an unexpected function of ROS: they dampen a key inflammatory process and weaken the immune system’s ability to combat pathogens such as those that cause pneumonia. (Mehr in: Cancer News — ScienceDaily)