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  • P-ISSN 1010-0695
  • E-ISSN 2288-3339

Effects of Gentianae Macrophyllae Radix on the functional recovery and expression of BDNF and c-Fos after sciatic crushed nerve injury in rats

Journal of Korean Medicine / Journal of Korean Medicine, (P)1010-0695; (E)2288-3339
2009, v.30 no.3, pp.28-38



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Abstract

Background:Peripheral nerve injuries are a commonly encountered clinical problem and often result in a chronic pain and severe functional deficits. Objective:The aim of this study was to evaluate the effects of Gentianae Macrophyllae Radix (G. M. Radix) on the pain control and the recovery of the locomotor function that results from the sciatic crushed nerve injury in rats. Method:Using rats, we crushed their sciatic nerve, and then orally administered the aqueous extract of G. M. Radix. The effects of G. M. Radix on the recovery locomotor function were investigated by walking track analysis. The effects of G. M. Radix on pain control were investigated by brain-derived neurotrophic factor (BDNF) expression in the sciatic nerve, and c-Fos expression in the paraventricular nucleus (PVN) of the hypothalamus and in the ventrolateral periaqueductal gray (vlPAG). Result:G. M. RADIX facilitates motor function from the locomotor deficit, and thereby increased BDNF expression and suppressed painful stimuli in the PVN and vlPAG after sciatic crushed nerve injury. Conclusion:It is suggested that G. M. Radix might aid recovery locomotor function and control pain after sciatic crushed nerve injury. Further studies on identifying specific the component in G.M. Radix associated with enhanced neural activity in the peripheral nerve injury may be helpful to develop therapeutic strategies for the treatment of peripheral nerve injury.

keywords
Gentianae Macrophyllae Radix, sciatic nerve, SFI, c-Fos, BDNF, Gentianae Macrophyllae Radix, sciatic nerve, SFI, c-Fos, BDNF


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