Research Article: Opioid Receptor Mu Gene (OPRM) AG Polymorphism and Emotional Modulation of Pain
Introduction:
In healthy individuals, pain modulation allows organisms to respond adaptively to environmental demands. Disrupted pain modulation (eg, excessive facilitation, impaired inhibition) is associated with chronic pain disorders, like fibromyalgia and chronic tension-type headache. – Thus, understanding factors that impair pain modulation could provide insight into chronic pain risk mechanisms.
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