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Cannabinoids have been reported to have analgesic properties in animals of acute nociception or of inflammatory and neuropathic pain models, but the mechanisms by which they exert such alleviative effects are not yet fully understood. We investigated whether the CB(1)-cannabinoid-receptor agonist HU210 modulates the capsaicin-induced (45)Ca(2+) influx and(More)
This resting-state functional magnetic resonance imaging study found that nine patients with somatoform pain disorder exhibited atypical precentral gyrus activation compared with 20 healthy controls. The role of the precentral gyrus in pain-related processing is discussed.
Vanilloid receptor 1 was recently reported to play an important role in hyperalgesia, but the mechanisms by which this receptor is activated by endogenous inflammatory mediators, such as bradykinin and nerve growth factor, are not yet fully understood. Here, we investigated whether bradykinin, which is a pain-producing inflammatory mediator, sensitizes(More)
Bradykinin interacts with the bradykinin B2 receptor on dorsal root ganglion (DRG) neurons, setting off a series of reactions inside the cells that ultimately make the vanilloid receptor 1 more sensitive to a normal stimulus by activating various enzymes coupled with second messenger signaling cascades. Zaltoprofen, a propionic acid derivative non-steroidal(More)
AIMS Somatoform pain disorder is associated with psychosocial dysfunction, and psychotherapies, such as cognitive behavioral therapy (CBT), are thought to provide useful interventions to address such dysfunction as well as the pain itself. However, little is known about whether CBT for somatoform pain disorder is effective, including the long-term course of(More)
To the Editor: Lightning limb pain, a clinical feature of tabes dorsalis, is extremely severe and is refractory to various therapeutic approaches [1]. We report the case of a 61-year-old man who had severe paroxysmal lower limb pain for a decade because of tabes dorsalis. Nine years ago, he was diagnosed with tabes dorsalis and treated with high-dosage(More)
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