Fibromyalgia: When Distress Becomes (Un)sympathetic Pain
- PMID: 22110948
- PMCID: PMC3200207
- DOI: 10.1155/2012/981565
Fibromyalgia: When Distress Becomes (Un)sympathetic Pain
Abstract
Fibromyalgia is a painful stress-related disorder. A key issue in fibromyalgia research is to investigate how distress could be converted into pain. The sympathetic nervous system is the main element of the stress response system. In animal models, physical trauma, infection, or distressing noise can induce abnormal connections between the sympathetic nervous system and the nociceptive system. Dorsal root ganglia sodium channels facilitate this type of sympathetic pain. Similar mechanisms may operate in fibromyalgia. Signs of sympathetic hyperactivity have been described in this condition. Genetic factors and/or distressful lifestyle may lead to this state of sympathetic hyperactivity. Trauma and infection are recognized fibromyalgia triggers. Women who suffer from fibromyalgia have catecholamine-evoked pain. Sympathetic dysfunction may also explain nonpain-related fibromyalgia symptoms. In conclusion, in fibromyalgia, distress could be converted into pain through forced hyperactivity of the sympathetic component of the stress response system.
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References
-
- Boisset-Pioro MH, Esdaile JM, Fitzcharles MA. Sexual and physical abuse in women with fibromyalgia syndrome. Arthritis and Rheumatism. 1995;38(2):235–241. - PubMed
-
- Jones GT, Nicholl BI, McBeth J, et al. Road traffic accidents, but not other physically traumatic events, predict the onset of chronic widespread pain: results from the EpiFunD study. Arthritis Care & Research. 2011;63(5):696–701. - PubMed
-
- Buskila D, Neumann L, Vaisberg G, Alkalay D, Wolfe F. Increased rates of fibromyalgia following cervical spine injury: a controlled study of 161 cases of traumatic injury. Arthritis and Rheumatism. 1997;40(3):446–452. - PubMed
-
- Ablin JN, Shoenfeld Y, Buskila D. Fibromyalgia, infection and vaccination: two more parts in the etiological puzzle. Journal of Autoimmunity. 2006;27(3):145–152. - PubMed
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