| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Research Abstract |
In the present study, the effects of intrathecal and intracerebroventricular application of 26RFa, on the level of mechanical allodynia induced by partial sciatic nerve ligation, were examined in rats. Intrathecal and intracerebroventricular injection of 26RFa attenuated the level of mechanical allodynia in a dose dependent manner. Immunohistochemical examination revealed that QRFP-like immunoreactivity (QRFP-LI) was expressed mainly in the small to medium sized neuronal profiles in the L5 dorsal root ganglion and that partial sciatic nerve injury increased the percentage of QRFP-LI positive neuronal profiles and made the cross-section area of the QRFP-LI positive neuronal profiles larger in the L5 dorsal root ganglion ipsilateral to the nerve injury.
Microinjection of 5 g of 26RFa into RVM decreased the number of flinching behavior induced by paw formalin injection significantly as compared with saline injected rats. This effect of 26RFa was not antagonized by naloxone.
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