Systemic minocycline differentially influences changes in spinal microglial markers following formalin-induced nociception.

Systemic minocycline differentially influences changes in spinal microglial markers following formalin-induced nociception.
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全身米诺环素对福尔马林诱导的伤害感受后脊髓小胶质细胞标记物的变化有不同的影响

DOI:
10.1016/j.jneuroim.2010.02.003
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发表时间:
2010-04-15
影响因子:
3.3
通讯作者:
Mao J
Mao J
中科院分区:
医学4区
文献类型:
--
作者:
Li K;Fu KY;Light AR;Mao J

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在本研究中,在接受双重福尔马林注射(5%福尔马林后7天再注射1%福尔马林)的大鼠中,腹腔注射米诺环素可减弱增强的伤害行为。米诺环素治疗不能阻止OX-42和MHC-I类标记的增加和形态变化,但显著减弱激活的小胶质细胞中磷酸化p38的上调。这些结果表明,脊髓中免疫标志物上调的小胶质细胞激活的后期,通过小胶质细胞中p38激活的途径,有助于增强长期的疼痛反应。
In the present study, intraperitoneal administration of minocycline attenuated enhancing nociceptive behaviors in those rats receiving dual formalin injections (5% formalin followed at 7 days later by 1% formalin). The minocycline treatment did not prevent the increase in OX-42 and MHC class I labeling and morphological changes, but significantly attenuated upregulation of phospho-p38 in activated microglia. These results suggest that the later days of microglial activation with upregulated immune markers in the spinal cord contributes to enhancing long-term pain response by a pathway of p38 activation in microglia.
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