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2017 ; 10
(ä): 2605-2619
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Antiallodynic and antihyperalgesic activities of zerumbone via the suppression of
IL-1?, IL-6, and TNF-? in a mouse model of neuropathic pain
#MMPMID29184437
Gopalsamy B
; Farouk AAO
; Tengku Mohamad TAS
; Sulaiman MR
; Perimal EK
J Pain Res
2017[]; 10
(ä): 2605-2619
PMID29184437
show ga
BACKGROUND: Neuropathic pain is a debilitating condition that severely affects
the quality of life for those with this pain condition, and treatment for pain
relief is greatly sought-after. Zerumbone (Zer), a sesquiterpene compound
isolated from the rhizomes of a Southeast Asian ginger plant, Zingiber zerumbet
(L.) Roscoe ex Smith. (Zingiberaceae), showed antinociceptive and
antiinflammatory properties when previously tested on models of nociception and
inflammation. OBJECTIVE: This study investigated the effects of prophylactic
administration of zerumbone on allodynia and hyperalgesia in a mouse model of
chronic constriction injury (CCI)-induced neuropathic pain. METHODS:
Intraperitoneal administration of Zer (5-50 mg/kg) from day 1 post-surgery was
carried out to identify the onset and progression of the pain condition.
Responses toward mechanical and cold allodynia, and mechanical and thermal
hyperalgesia were assessed on days 3, 5, 7, 9, 11, and 14 post-surgery. Blood
plasma and spinal cord levels of interleukin (IL)-1?, IL-6, tumor necrosis
factor-?, and IL-10 were screened using enzyme-linked immunosorbent assay on day
15. RESULTS: Zer (10 and 50 mg/kg) attenuated pain symptoms on all days of
behavioral testing without any signs of sedation in the rotarod test. ED(50)
values for mechanical allodynia, cold allodynia, thermal hyperalgesia, and
mechanical hyperalgesia were 9.25, 9.507, 8.289, and 9.801 mg/kg, respectively.
Blood plasma and spinal levels of IL-1?, IL-6, and tumor necrosis factor-? but
not IL-10 were significantly (p<0.05) suppressed by zer treatment. DISCUSSION AND
CONCLUSION: Zer exhibits its antiallodynic and antihyperalgesic properties via
reduced sensitization at nociceptor neurons possibly through the suppression of
inflammatory mediators. Zer may prove to be a novel and beneficial alternative
for the management of neuropathic pain.