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Department of Anesthesiology, The Second Affiliated Hospital of Wenzhou Medical College,Zhejiang Province,Wenzhou,China
Published:2014,
Published Online:28 January 2014,
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Cao, H., Zheng, Jw., Li, Jj. et al. Effects of curcumin on pain threshold and on the expression of nuclear factor κ B and CX3C receptor 1 after sciatic nerve chronic constrictive injury in rats., Chin. J. Integr. Med. 20, 850–856 (2014). https://doi.org/10.1007/s11655-013-1549-9
Hong Cao, Jin-wei Zheng, Jia-jia Li, et al. Effects of curcumin on pain threshold and on the expression of nuclear factor κ B and CX3C receptor 1 after sciatic nerve chronic constrictive injury in rats. [J]. Chinese Journal of Integrative Medicine 20(11):850-856(2014)
Cao, H., Zheng, Jw., Li, Jj. et al. Effects of curcumin on pain threshold and on the expression of nuclear factor κ B and CX3C receptor 1 after sciatic nerve chronic constrictive injury in rats., Chin. J. Integr. Med. 20, 850–856 (2014). https://doi.org/10.1007/s11655-013-1549-9 DOI:
Hong Cao, Jin-wei Zheng, Jia-jia Li, et al. Effects of curcumin on pain threshold and on the expression of nuclear factor κ B and CX3C receptor 1 after sciatic nerve chronic constrictive injury in rats. [J]. Chinese Journal of Integrative Medicine 20(11):850-856(2014) DOI: 10.1007/s11655-013-1549-9.
To investigate the effects of curcumin on pain threshold and the expressions of nuclear factor κ B (NF-κ B) and CX3C chemokine receptor 1 (CX3CR1) in spinal cord and dorsal root ganglion (DRG) of the rats with sciatic nerve chronic constrictive injury. One hundred and twenty male Sprague Dawley rats
weighing 220–250 g
were randomly divided into 4 groups. Sham surgery (sham) group: the sciatic nerves of rats were only made apart but not ligated; chronic constrictive injury (CCI) group: the sciatic nerves of rats were only ligated without any drug treatment; curcumin treated injury (Cur) model group: the rats were administrated with curcumin 100 mg/(kg·d) by intraperitoneal injection for 14 days after CCI; solvent control (SC) group: the rats were administrated with the solvent at the same dose for 14 days after CCI. Thermal withdrawal latency (TWL) and mechanical withdrawal threshold (MWT) of rats were respectively measured on pre-operative day 2 and postoperative day 1
3
5
7
10 and 14. The lumbar segment L4–5 of the spinal cord and the L4
L5 DRG was removed at post-operative day 3
7 and 14. The change of nuclear factor κ B (NF-κ B) p65 expression was detected by Western blotting while the expression of CX3CR1 was determined by immunohistochemical staining. Compared with the sham group
the TWL and MWT of rats in the CCI group were significantly decreased on each post-operative day (P<0.01)
which reached a nadir on the 3rd day after CCI
and the expressions of NF-κ B p65 and CX3CR1 were markedly increased in spinal cord dorsal horn and DRG. In the Cur group
the TWL of rats were significantly increased than those in the CCI group on post-operative day 7
10 and 14 (P<0.05) and MWT increased than those in the CCI group on post-operative day 10 and 14 (P<0.05). In addition
the administration of curcumin significantly decreased the positive expressions of NF-κ B p65 and CX3CR1 in spinal cord and DRG (P<0.05). Our study suggests that curcumin could ameliorate the CCI-induced neuropathic pain
probably through inhibiting CX3CR1 expression by the activation of NF-κ B p65 in spinal cord and DRG.
To investigate the effects of curcumin on pain threshold and the expressions of nuclear factor κ B (NF-κ B) and CX3C chemokine receptor 1 (CX3CR1) in spinal cord and dorsal root ganglion (DRG) of the rats with sciatic nerve chronic constrictive injury. One hundred and twenty male Sprague Dawley rats
weighing 220–250 g
were randomly divided into 4 groups. Sham surgery (sham) group: the sciatic nerves of rats were only made apart but not ligated; chronic constrictive injury (CCI) group: the sciatic nerves of rats were only ligated without any drug treatment; curcumin treated injury (Cur) model group: the rats were administrated with curcumin 100 mg/(kg·d) by intraperitoneal injection for 14 days after CCI; solvent control (SC) group: the rats were administrated with the solvent at the same dose for 14 days after CCI. Thermal withdrawal latency (TWL) and mechanical withdrawal threshold (MWT) of rats were respectively measured on pre-operative day 2 and postoperative day 1
3
5
7
10 and 14. The lumbar segment L4–5 of the spinal cord and the L4
L5 DRG was removed at post-operative day 3
7 and 14. The change of nuclear factor κ B (NF-κ B) p65 expression was detected by Western blotting while the expression of CX3CR1 was determined by immunohistochemical staining. Compared with the sham group
the TWL and MWT of rats in the CCI group were significantly decreased on each post-operative day (P<0.01)
which reached a nadir on the 3rd day after CCI
and the expressions of NF-κ B p65 and CX3CR1 were markedly increased in spinal cord dorsal horn and DRG. In the Cur group
the TWL of rats were significantly increased than those in the CCI group on post-operative day 7
10 and 14 (P<0.05) and MWT increased than those in the CCI group on post-operative day 10 and 14 (P<0.05). In addition
the administration of curcumin significantly decreased the positive expressions of NF-κ B p65 and CX3CR1 in spinal cord and DRG (P<0.05). Our study suggests that curcumin could ameliorate the CCI-induced neuropathic pain
probably through inhibiting CX3CR1 expression by the activation of NF-κ B p65 in spinal cord and DRG.
Curcuminneuropathic painmicroglianuclear factor κ BCX3C chemokine receptor 1
Curcuminneuropathic painmicroglianuclear factor κ BCX3C chemokine receptor 1
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