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Various forms of preconditioning can prevent ischemic-reperfusion injury after myocardial infarction. Here, the authors show that in mice, the presence of chronic neuropathic pain can have a cardioprotective effect, and that this is dependent on neural activation in the paraventricular thalamus.
Chronic pain is the greatest source of disability globally and claims related to chronic pain feature in many insurance and medico-legal cases. In this Consensus Statement, a presidential task force of the International Association for the Study of Pain examines the capabilities of brain imaging in the diagnosis of chronic pain, and the ethical and legal implications of such uses of brain imaging.
Loss of inhibition in a circuit in the primary somatosensory cortex that controls the activity of layer 5 neurons drives pain hypersensitivity. Restoring this inhibition resets the inhibitory–excitatory balance, producing analgesia.