两种新的代谢途径被发现
文章来源:未知 文章作者:meng 发布时间:2009-12-06 05:28 字体: [ ]  进入论坛
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Case Western Reserve University researchers, from the School of Medicine's Department of Nutrition, discovered two new metabolic1 pathways代谢途径 by which products of lipid peroxidation脂质过氧化作用 and some drugs of abuse, known as 4-hydroxyacids含氧酸, are metabolized产生代谢变化. The pathways were identified by a combination of metabolomics and mass isotopomer同位素 analysis. The findings shed new light on the mechanism2 of action of the drug of abuse gamma-hydroxybutyrate羟基丁酸, also known as "the date rape3 drug." The manuscript手稿,原稿 published in the November 27th issue of the Journal of Biological Chemistry was named a "Paper of the Week." Such papers are chosen from the top one percent of all articles submitted to the prestigious享有声望的 peer-reviewed journal. This type of rare breakthrough sets the ground work for future discoveries. This work was supported by a RoadMap grant同意,承认 from the National Institutes of Health, a grant from the National Institute of Environment Health Sciences, as well as by a grant from the Cleveland Mt. Sinai Health Care Foundation. The RoadMap grant funded the development of metabolomics新陈代谢学 at Case Western Reserve, as well as the acquisition of a top-of-the-line mass spectrometer分光计. This instrument allowed this and multiple other studies to be conducted. The RoadMap initiative allowed a quantum jump量子越近 in the development of metabolic research at the School of Medicine.

"Our finding will lead to studies that will increase the understanding of metabolic disturbances5 that occur during oxidative stress氧化应激. The latter is part of the pathology病理学 of heart attacks, stroke, diabetes糖尿病 and inflammation发炎,红肿," says Guo-Fang Zhang, Ph.D., Research Associate in the Department of Nutrition at Case Western Reserve School of Medicine. "We hope that the upcoming studies will lead to the design of new treatments that minimize the effects of oxidative stress."

"Paving a Catabolic Highway," an editorial about this landmark7 study concluded, "Overall, this study represents an exemplary可仿效的 prototype原型 for any projects that aim to identify incomplete or unknown metabolic pathways."

"A combined effort of Case Western Reserve University and the Mt. Sinai Health Care Foundation since 1990 has lead to the building of this department's research program and the conception of this groundbreaking finding," says Henri Brunengraber, M.D., Ph.D., Senior Author, Professor, and Chair of the Department of Nutrition. "We plan to expand this project in close collaboration8 with Gregory P. Tochtrop, Ph.D., Assistant Professor in the Department of Chemistry. Dr. Tochtrop and his group have synthesized综合,合成 a number of carbon 13-labeled compounds which allowed the unraveling阐明,解释 of the steps of the new pathways we discovered".



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1 metabolic 2R4z1     
adj.新陈代谢的
参考例句:
  • Impressive metabolic alternations have been undergone during embryogenesis.在胚胎发生期间经历了深刻的代谢变化。
  • A number of intoxicants are associated with metabolic acidosis.许多毒性物质可引起代谢性酸中毒。
2 mechanism zCWxr     
n.机械装置;机构,结构
参考例句:
  • The bones and muscles are parts of the mechanism of the body.骨骼和肌肉是人体的组成部件。
  • The mechanism of the machine is very complicated.这台机器的结构是非常复杂的。
3 rape PAQzh     
n.抢夺,掠夺,强奸;vt.掠夺,抢夺,强奸
参考例句:
  • The rape of the countryside had a profound ravage on them.对乡村的掠夺给他们造成严重创伤。
  • He was brought to court and charged with rape.他被带到法庭并被指控犯有强奸罪。
4 prestigious nQ2xn     
adj.有威望的,有声望的,受尊敬的
参考例句:
  • The young man graduated from a prestigious university.这个年轻人毕业于一所名牌大学。
  • You may even join a prestigious magazine as a contributing editor.甚至可能会加入一个知名杂志做编辑。
5 disturbances a0726bd74d4516cd6fbe05e362bc74af     
n.骚乱( disturbance的名词复数 );打扰;困扰;障碍
参考例句:
  • The government has set up a commission of inquiry into the disturbances at the prison. 政府成立了一个委员会来调查监狱骚乱事件。
  • Extra police were called in to quell the disturbances. 已调集了增援警力来平定骚乱。
6 diabetes uPnzu     
n.糖尿病
参考例句:
  • In case of diabetes, physicians advise against the use of sugar.对于糖尿病患者,医生告诫他们不要吃糖。
  • Diabetes is caused by a fault in the insulin production of the body.糖尿病是由体內胰岛素分泌失调引起的。
7 landmark j2DxG     
n.陆标,划时代的事,地界标
参考例句:
  • The Russian Revolution represents a landmark in world history.俄国革命是世界历史上的一个里程碑。
  • The tower was once a landmark for ships.这座塔曾是船只的陆标。
8 collaboration bW7yD     
n.合作,协作;勾结
参考例句:
  • The two companies are working in close collaboration each other.这两家公司密切合作。
  • He was shot for collaboration with the enemy.他因通敌而被枪毙了。
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