Ventromedial prefrontal neurokinin 1 receptor availability is reduced in chronic pain

作者: Clas Linnman , Lieuwe Appel , Tomas Furmark , Anne Söderlund , Torsten Gordh

DOI: 10.1016/J.PAIN.2010.01.008

关键词:

摘要: Neurokinin 1 (NK1) receptors are involved in pain and anxiety behaviors animals, but little is known about central alterations this receptor system human pain. With positron emission tomography, using a [11]-Carbon labeled NK1 antagonist, we demonstrate attenuated availability frontal, insular cingulate cortex, as well the hippocampus, amygdala periaqueductal gray area patients with chronic The reduced was most pronounced ventromedial prefrontal cortex (vmPFC), where attenuations correlated to measures of fear avoidance movement. Further, vmPFC levels also displayed opposing influences compared controls on regional cerebral blood flow anterior cingulate. We conclude that altered results suggest modulate motor inhibition, contribute

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