Brief psychotic disorder is a mental health condition in which psychotic symptoms come on suddenly but last only for a short time — less than one month. After that, people usually recover completely.

Reactive oxygen species (ROS) homeostatic pathways in microbes operate instant and feedback-regulated adjustments of intracellular ROS concentration. They use redox sensors that 'measure' ROS ...

Treatment of bacteria with low concentrations of bactericidal antibiotics can generate multidrug resistance through an increase in the mutation rate that is driven by the formation of reactive oxygen ...