首页> 外文期刊>Neuroscience: An International Journal under the Editorial Direction of IBRO >INCREASED MACROMOLECULAR DAMAGE DUE TO OXIDATIVE STRESS IN THE NEOCORTEX AND HIPPOCAMPUS OF WNIN/OB, A NOVEL RAT MODEL OF PREMATURE AGING
【24h】

INCREASED MACROMOLECULAR DAMAGE DUE TO OXIDATIVE STRESS IN THE NEOCORTEX AND HIPPOCAMPUS OF WNIN/OB, A NOVEL RAT MODEL OF PREMATURE AGING

机译:新型衰老大鼠模型“酒/羊”新皮层和海马中的氧化应激导致大分子损伤的增加

获取原文
获取原文并翻译 | 示例
           

摘要

Wistar of the National Institute of Nutrition obese (WNIN/Ob) is a unique rat strain isolated and established at NIN, Hyderabad, India, in 1996, from its existing stock of Wistar rat colony (WNIN). This animal model exhibits all traits of metabolic syndrome and has a remarkably reduced lifespan (1.5 years as compared to 3 years in parental WNIN rats), albeit, the factors associated with premature aging are not well understood. Considering that oxidative stress and DNA damage are crucial players associated with senescence, we analyzed oxidative stress markers like lipid perox-idation and protein oxidation; DNA damage in terms of both single-stranded and double-stranded breaks and the activity of antioxidant enzymes: superoxide dismutase and catalase in brain regions of these animals. Our study revealed that the magnitude of oxidative stress and DNA damage in the neocortex and hippocampus of 3-month-old WNIN/Ob obese rats is as high as that seen in 15-month-old parental WNIN control rats. Concurrently, the antioxidant enzyme activity was significantly decreased. From these results, it can be concluded that increased oxidative stress-induced damage of macromolecules, probably due to reduced activity of antioxidant enzymes, is associated with premature aging in WNIN/Ob obese rats.
机译:美国国家营养肥胖研究所(WNIN / Ob)的Wistar是一种独特的大鼠品系,于1996年从其现有的Wistar大鼠菌落(WNIN)中分离并建立在印度海得拉巴NIN。这种动物模型表现出代谢综合征的所有特征,并且寿命显着降低(与WNIN亲本大鼠的3年相比为1.5年),尽管与早衰相关的因素尚未得到很好的了解。考虑到氧化应激和DNA损伤是与衰老相关的关键因素,我们分析了氧化应激标记物,如脂质过氧化物识别和蛋白质氧化。 DNA损伤包括单链断裂和双链断裂以及抗氧化酶的活性:这些动物的大脑区域中的超氧化物歧化酶和过氧化氢酶。我们的研究表明,在3个月大的WNIN / Ob肥胖大鼠的新皮层和海马中,氧化应激和DNA损伤的程度与15个月大的WNIN对照大鼠的一样高。同时,抗氧化酶活性显着降低。从这些结果可以得出结论,可能是由于抗氧化酶活性降低引起的大分子氧化应激诱导的大分子损伤与WNIN / Ob肥胖大鼠的过早衰老有关。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号