Intrathecal injection of monocarboxylate transporter inhibitor α-cyano-4-hydroxy-cinnamate attenuates neuropathic pain in rats / 中华行为医学与脑科学杂志
Chinese Journal of Behavioral Medicine and Brain Science
;
(12): 869-871, 2014.
Article
in Chinese
| WPRIM
| ID: wpr-470608
ABSTRACT
Objective To investigate the effects of intrathecal injection of α-cyano-4-hydroxy-cinnamate (4-CIN) in rats with neuropathic pain induced by chronic constriction injury of sciatic nerve (CCI).Methods Eighteen male SD rats were divided randomly into 3 groups(n=6)sham group (group S),CCI model group (group C0) and 4-CIN group (group C1).Group C0 and C1 were operated with the model of neuropathic pain induced by chronic constriction injury of sciatic nerve ; and group S were treated as sham operated rats.Two days after operation,group C1 received intrathecal injection of 100 μmol 4-CIN dissolved in 10% DMSO 10 μl,while group C0 received intrathecal injection of 10% DMSO 10 μl only.The paw withdrawal thermal latency(PWTL) and paw withdrawal mechanical threshold(PWMT) were tested 1 d before operation and 1 d,3 d,7 d,10 d,14 d after operation(T0-5).Results The basic values of PWMT and PWTL before operation showed no statistically significant differences among the three groups.On T1-5,the PWMT((11.71 ±2.81) g,(9.76± 1.00) g,(8.22± 1.33) g,(6.50± 1.48) g,(4.67± 1.03) g) and PWTL((11.36±2.18) s,(11.60±2.54) s,(8.54± 1.42) s,(7.59± 1.00) s,(6.88± 0.42) s) in group C0 were significantly lower than those in group S (P<0.05).However,there were no significant differences between group S and C1 on T2-5(P>0.05).Conclusion Intrathecal administration of 4-CIN can attenuate neuropathic pain in rats induced by CCI.
Full text:
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Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Behavioral Medicine and Brain Science
Year:
2014
Type:
Article
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