Oxidative DNA lesions in a rodent model of traumatic brain injury.

Oxidative DNA lesions in a rodent model of traumatic brain injury.
复制标题

创伤性脑损伤啮齿动物模型中的氧化 DNA 损伤。

DOI:
10.1097/01.ta.0000130759.62286.0e
复制
发表时间:
2004
期刊:
The Journal of trauma
影响因子:
--
通讯作者:
Robertson,ClaudiaS
Robertson,ClaudiaS
中科院分区:
--
文献类型:
--
作者:
Mendez,DonnaR;Cherian,Leela;Moore,Niki;Arora,Tarun;Liu,PhilipK;Robertson,ClaudiaS

文献摘要

参考文献

被引文献

相似文献

背景:氧化性 DNA 损伤在创伤性脑损伤 (TBI) 中尚未得到充分研究。方法:通过大鼠受控的皮质冲击损伤诱导 TBI。使用单克隆抗体在不同时间范围检查脑组织中的 8-羟基-2'-脱氧鸟苷 (oh8dG); 15 分钟 (n= 4)、30 分钟 (n= 7)、60 分钟 (n= 6) 和 240 分钟 (n= 5)。对照组由接受相同手术但未受控制的皮质冲击损伤的假手术动物组成(n = 5)。 结果:在同侧皮质的核和核周(线粒体)区域检测到 oh8dG 升高,但在对侧皮质的核区和核周(线粒体)区域检测到 oh8dG 升高。与假手术对照相比,患有 TBI 的动物中 oh8dG 的量在所有时间范围内均显着(p < 0.001)。与对照组相比,oh8dG 水平在 15 分钟时更为显着 (p< 0.0001)。 结论:氧化性 DNA 损伤在该 TBI 模型中最早期就发生在 TBI 后。这表明 oh8dGs 可能会影响大脑的遗传物质,并且 oh8dGs 可能会对头部受伤后早期发生的基因表达产生不利影响。
Background:Oxidative DNA lesions have not been well studied in traumatic brain injury (TBI).Methods:TBI was induced with a controlled cortical impact injury in rats. Brain tissue was examined for 8-hydroxy-2′-deoxyguanosine (oh8dG) using mono-clonal antibodies at different time frames; 15 minutes (n= 4), 30 minutes (n= 7), 60 minutes (n= 6), and 240 minutes (n= 5). The control group consisted of sham-operated animals undergoing the same surgery without the controlled cortical impact injury (n= 5).Results:An elevation of oh8dG was detected in the nuclear and perinuclear (mitochondrial) regions of the ipsilateral cortex, but seldom in those of the contralateral cortex. The amount of oh8dG in those animals with TBI was significant in all time frames when compared with sham-operated controls (p< 0.001). The oh8dG levels were more prominent at 15 minutes (p< 0.0001) when compared with controls.Conclusion:Oxidative DNA lesions occurred in this model of TBI maximally early after TBI. This suggests that oh8dGs may affect genetic material of the brain and that oh8dGs may adversely affect gene expression that occurs early after head injury.
DOI: 10.1006/nbdi.2001.0396
发表时间: 2001-06-01
影响因子: 6.1
作者:
Lewén, A;Sugawara, T;Chan, PH
通讯作者: Chan, PH
1979 年至 1992 年与创伤性脑损伤相关的死亡趋势:成功与失败
DOI: 10.1001/jama.1995.03520460060036
发表时间: 1995
期刊: JAMA
影响因子: --
作者:
D. Sosin;J. Sniezek;R. Waxweiler
通讯作者: R. Waxweiler
DOI: 10.1016/s0002-9440(10)65396-5
发表时间: 1999-05-01
影响因子: 6
作者:
Zhang, J;Perry, G;Montine, TJ
通讯作者: Montine, TJ
DOI: --
发表时间: 1995
期刊: The American journal of pathology
影响因子: --
作者:
A. Rink;K. Fung;J. Trojanowski;V. Lee;E. Neugebauer;Tracy K. McIntosh
通讯作者: A. Rink;K. Fung;J. Trojanowski;V. Lee;E. Neugebauer;Tracy K. McIntosh
DOI: 10.1097/00006123-200004000-00034
发表时间: 2000-04-01
期刊: NEUROSURGERY
影响因子: 4.8
作者:
Ng, I;Yeo, TT;Smith, DR
通讯作者: Smith, DR