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首页> 外文期刊>Inflammation >Diffuse Axonal Damage, Myelin Impairment, Astrocytosis and Inflammatory Response Following Microinjections of NMDA into The Rat Striatum
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Diffuse Axonal Damage, Myelin Impairment, Astrocytosis and Inflammatory Response Following Microinjections of NMDA into The Rat Striatum

机译:在大鼠纹状体中微量注射NMDA后,弥漫性轴索损伤,髓鞘损害,星形胶质细胞增多和炎症反应

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摘要

White matter damage and inflammatory response are important secondary outcomes after acute neural disorders. Nevertheless, a few studies addressed the temporal outcomes of these pathological events using non-traumatic models of acute brain injury. In the present study, we describe acute inflammatory response and white matter neuropathology between 1 and 7 days after acute excitotoxic striatal damage. Twenty micrometer sections were stained by hematoxylin and eosin technique for gross histopathological analysis and immunolabed for neutrophils (anti-mbs-1), activated macrophages/microglia (anti-ed1), astrocytes (anti-gfap), damaged axons (anti-βapp) and myelin basic protein (MBP). Recruitment peak of neutrophils and macrophages occurred at 1 and 7 days post-nmda injection, respectively. Diffuse damaged axons (β-app + end-bulbs) were apparent at 7 days, concomitant with progressive myelin impairment and astrocytosis. Further studies using electron microscopy and blockers of inflammatory response and glutamatergic receptors should be performed to confirm and address the mechanisms of white matter damage following an excitotoxic lesion.
机译:在急性神经疾病之后,白质损伤和炎症反应是重要的次要结果。尽管如此,仍有一些研究使用急性脑损伤的非创伤性模型研究了这些病理事件的时间结局。在本研究中,我们描述了急性兴奋性毒性纹状体损伤后1至7天之间的急性炎症反应和白质神经病理学。用苏木精和曙红技术对20微米切片进行染色以进行总体组织病理学分析,并对中性粒细胞(anti-mbs-1),活化的巨噬细胞/小胶质细胞(anti-ed1),星形胶质细胞(anti-gfap),受损的轴突(anti-βapp)进行免疫标记和髓磷脂碱性蛋白(MBP)。中性粒细胞和巨噬细胞的募集高峰分别发生在nmda注射后1天和7天。弥漫性损伤轴突(β-app+鳞茎)在第7天出现,并伴有进行性髓鞘损害和星形胶质细胞增多症。应进行进一步的研究,使用电子显微镜以及炎症反应和谷氨酸能受体的阻滞剂,以确认和解决兴奋性毒性病变后白质损伤的机制。

著录项

  • 来源
    《Inflammation》 |2008年第1期|24-35|共12页
  • 作者单位

    Laboratory of Experimental Neuroprotection and Neuroregeneration Department of Morphology Biological Sciences Center Federal University of Pará Rua Augusto Corrêa N. 1. Campus do Guamá CEP: 66075-900 Belém-Pará Brazil;

    Laboratory of Experimental Neuroprotection and Neuroregeneration Department of Morphology Biological Sciences Center Federal University of Pará Rua Augusto Corrêa N. 1. Campus do Guamá CEP: 66075-900 Belém-Pará Brazil;

    Laboratory of Experimental Neuroprotection and Neuroregeneration Department of Morphology Biological Sciences Center Federal University of Pará Rua Augusto Corrêa N. 1. Campus do Guamá CEP: 66075-900 Belém-Pará Brazil;

    Laboratory of Experimental Neuroprotection and Neuroregeneration Department of Morphology Biological Sciences Center Federal University of Pará Rua Augusto Corrêa N. 1. Campus do Guamá CEP: 66075-900 Belém-Pará Brazil;

    Laboratory of Experimental Neuroprotection and Neuroregeneration Department of Morphology Biological Sciences Center Federal University of Pará Rua Augusto Corrêa N. 1. Campus do Guamá CEP: 66075-900 Belém-Pará Brazil;

    Laboratory of Experimental Neuroprotection and Neuroregeneration Department of Morphology Biological Sciences Center Federal University of Pará Rua Augusto Corrêa N. 1. Campus do Guamá CEP: 66075-900 Belém-Pará Brazil;

    Functional Neuroanatomy Department of Morphology Biological Sciences Center Federal University of Pará Rua Augusto Corrêa N. 1. Campus do Guamá CEP: 66075-900 Belém-Pará Brazil;

    Laboratory of Experimental Neuroprotection and Neuroregeneration Department of Morphology Biological Sciences Center Federal University of Pará Rua Augusto Corrêa N. 1. Campus do Guamá CEP: 66075-900 Belém-Pará Brazil;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    white matter damage; basal ganglia; excitotoxicity; neutrophils; macrophages;

    机译:白质损伤;基底节;兴奋毒性;中性粒细胞;巨噬细胞;

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