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- W2012175028 abstract "Fibromyalgia is a prevalent musculoskeletal disorder characterized by chronic widespread pain that significantly reduces quality of life in patients. Due to the lack of consistently effective treatment, the development of improved therapies for treating fibromyalgia is necessary. As dysfunction of serotonergic analgesic control appears to be involved in the pathophysiology of fibromyalgia, the present study explored the potential of 5-HT(2C) receptor agonists as novel therapies for treating this disease. Three 5-HT(2C) receptor agonists (lorcaserin, vabicaserin and YM348) that have been suggested to be useful in the treatment of several central nervous system diseases, including obesity and schizophrenia, were used. The effect of systemic administration of these agents on the muscular hyperalgesia that develops in the reserpine-induced myalgia (RIM) rat, a putative animal model of fibromyalgia, was investigated. RIM rats exhibited decreased muscle pressure thresholds. Microdialysis experiments showed that the concentration of serotonin (5-HT) in the spinal cord of RIM rats was significantly lower than that of controls. Lorcaserin (0.3-3 mg/kg p.o.), vabicaserin (0.3-3 mg/kg s.c.) and YM348 (0.03-0.3 mg/kg p.o.) recovered the muscle pressure threshold. The effect of lorcaserin was reversed by the pretreatment with SB242084, a 5-HT(2C) receptor antagonist. Our findings demonstrate that 5-HT(2C) receptors play a critical role in muscular hyperalgesia in RIM rats and suggest that 5-HT(2C) receptor agonists have therapeutic potential for treating chronic pain in patients with fibromyalgia although clinical extrapolation remains to be a future challenge." @default.
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- W2012175028 date "2013-07-01" @default.
- W2012175028 modified "2023-09-26" @default.
- W2012175028 title "Systemic administration of 5-HT2C receptor agonists attenuates muscular hyperalgesia in reserpine-induced myalgia model" @default.
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- W2012175028 doi "https://doi.org/10.1016/j.pbb.2013.04.007" @default.
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