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Role of GPR103-26RFa-QRFP system in the development of neuropathic pain

Role of GPR103-26RFa-QRFP system in the development of neuropathic pain
GPR103-26RFa-QRFP系统在神经病理性疼痛发生中的作用
批准号:
23590715
负责人:
TANAHIRA Chiyoko
金额:
$3.08万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2011
资助国家:
日本
项目状态:
已结题
起止时间:
2011 至 2013

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中文摘要
翻译
本研究观察了鞘内和侧脑室注射26RFa对大鼠部分坐骨神经结扎所致的机械性痛觉超敏的影响。鞘内和侧脑室注射26RFa可剂量依赖性地减轻机械性痛觉异常。免疫组织化学检测显示,QRFP-LI主要表达于L5背根节的中小型神经元轮廓,部分坐骨神经损伤后,L5背根节QRFP-LI阳性神经元轮廓的百分比增加,截面积增大。与生理盐水注射相比,RVm内注射5&61549 g 26RFa可显著减少大鼠的缩腿行为。纳洛酮不能拮抗26RFa的这种作用。
英文摘要
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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Microinjection of 26RFa, an endogeniou ligand for GPR103, into rostral ventromedial medulla (RVM) produces an analgesic effect in the rat formalin test
将 26RFa(GPR103 的内源性配体)显微注射到头端腹内侧延髓 (RVM),在大鼠福尔马林试验中产生镇痛作用
DOI: --
发表时间: 2014
期刊:
影响因子: --
作者: [Miki Araki, Takahiro Nonaka, Toshihiko Yamada, Tatsuo Yamamoto]
通讯作者: Tatsuo Yamamoto
Anti-allodynic effects of intrathecally and intracerebroventricularly administered 26RFa, an intrinsic agonist for GRP103, in the rat partial sciatic nerve ligation model
鞘内和脑室内注射 26RFa(GRP103 的内在激动剂)在大鼠部分坐骨神经结扎模型中的抗异常疼痛作用
DOI: --
发表时间: 2011
期刊: Peptides
影响因子: 3
作者: [Tatsuo Yamamoto, R. Miyazaki, Toshihiko Yamada, T. Shinozaki]
通讯作者: T. Shinozaki
Microinjection of Neuropeptide W, an endogeniou ligand for GPR7 and 8, into rostral ventromedial medulla (RVM) produces an analgesic effect in the rat formalin test
将神经肽 W(GPR7 和 8 的内源性配体)显微注射到延髓头端腹内侧 (RVM),在大鼠福尔马林试验中产生镇痛作用
DOI: --
发表时间: 2014
期刊:
影响因子: --
作者: [Takahiro Nonaka, Toshihiko Yamada, Miki Araki, Tatsuo Yamamoto]
通讯作者: Tatsuo Yamamoto
Microinjection of 26RFa, an endogenous ligand for GPR103, into rostralventromedial medulla (RVM) produces an analgesic effect in the rat formalin test
将 26RFa(GPR103 的内源性配体)显微注射到延髓头腹内侧 (RVM),在大鼠福尔马林试验中产生镇痛作用
DOI: --
发表时间: 2014
期刊:
影响因子: --
作者: [Yasukochi Y, Takenaka K, Yurino A, Kurihara Y, Miake S, Uchi H, Takeuchi S, Kohda F, Moroi Y, Okano S, Yamamoto H, Furue M, Tatsuo Yamamoto]
通讯作者: Tatsuo Yamamoto
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