Descending control of pain
نویسندگان
چکیده
منابع مشابه
Descending control of pain.
Upon receipt in the dorsal horn (DH) of the spinal cord, nociceptive (pain-signalling) information from the viscera, skin and other organs is subject to extensive processing by a diversity of mechanisms, certain of which enhance, and certain of which inhibit, its transfer to higher centres. In this regard, a network of descending pathways projecting from cerebral structures to the DH plays a co...
متن کاملDescending control of pain.
Thanks largely to the study of the brainstem nuclei that mediate stimulation analgesia, the involvement of the monoamines in the descending control of pain is now well established. The periaqueductal grey, the raphe nuclei (NRM and DRN) and the locus coeruleus are all key brainstem sites for the control of nociceptive transmission in the spinal cord. Although the initial emphasis was on 5-HT as...
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Along with the well-known rewarding effects, activation of nicotinic acetylcholine receptors (nAChRs) can also relieve pain, and some nicotinic agonists have analgesic efficacy similar to opioids. A major target of analgesic drugs is the descending pain modulatory pathway, including the ventrolateral periaqueductal gray (vlPAG) and the rostral ventromedial medulla (RVM). Although activating nAC...
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What protects us against pain is a neglected discussion. The majority of patients with diseases or lesions to the primary afferent branch of the nervous system do not develop chronic pain. Across the different etiologies of neuropathies the percentage varies between 5% and 30%. Furthermore, only a fraction of patients with spontaneous neuropathic pain also develop mechanical hypersensitivity. I...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 1995
ISSN: 0007-0912
DOI: 10.1093/bja/75.2.217