The search for non-evoked markers of pain in the GTN mouse model of migraine.

Rodent migraine models have been developed to study the underlying molecular mechanisms of migraine, but these need further development and validation to stay relevant. The glyceryl trinitrate (GTN) mouse model with tactile hypersensitivity as the primary readout, has been highly used to understand the pathophysiology of migraine. Nevertheless, this readout has questionable translatability to the experience of spontaneous pain and additional readouts are needed to improve this model.