印加一具木乃伊死前曾患肺部感染-凯发k8官网

印加一具木乃伊死前曾患肺部感染
文章来源:未知 文章作者:enread 发布时间:2012-07-27 05:51 字体: [ ] 
(单词翻译:双击或拖选)
a 500-year-old frozen incan mummy suffered from a 1 lung infection at the time of its death, as revealed by a novel proteomics(蛋白质组) method that shows evidence of an active pathogenic infection in an ancient sample for the first time. the full report is published july 25 in the open access journal plos one.
 
detecting diseases in ancient 2 is often 3 with(充满,带有) difficulty, especially because of contamination. techniques based on microbe 4 can easily be confused by environmental contamination, and they can only confirm that the pathogen was present, not that the person was infected, but the researchers behind the study, led by angelique corthals of the john jay college of criminal justice, city university of new york, found a way around this problem. they used proteomics, focusing on protein rather than dna remains, to profile immune system response from degraded samples taken from 500 year-old mummies.
 
the team swabbed the lips of two andean inca mummies, buried at 22,000-feet 5 and originally discovered in 1999, and compared the proteins they found to large databases of the human genome. they found that the protein profile from the mummy of a 15-year old girl, called "the 6," was similar to that of 7 respiratory infection patients, and the analysis of the dna showed the presence of probably pathogenic bacteria in the genus mycobacterium, responsible for upper respiratory 8 infections and 9. in addition, x-rays of the lungs of the maiden showed signs of lung infection at the time of death. proteomics, dna, and x-rays from another mummy found together with the maiden did not show signs of respiratory(呼吸的) infection.
 
"pathogen detection in ancient tissues isn't new, but until now it's been impossible to say whether the infectious agent was latent or active," says corthals. "our technique opens a new door to solving some of history's biggest mysteries, such as the reasons why the flu of 1918 was so 10. it will also enhance our understanding of our future's greatest threats, such as the 11 of new infectious agents or re-emergence of known infectious diseases."
 
"our study is the first of its kind since rather than looking for the pathogen, which is notoriously difficult to do in historical samples, we are looking at the immune system protein profile of the "patient," which more 12 tells us that there was indeed an infection at the time of death." or "our study opens the door to solving many historical and current biomedical and 13 mysteries, from understanding why the plague of 1918 was so 14, to finding out which pathogen is responsible for death in cases of multiple infections."


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1 dy5z8q     
a.细菌的
参考例句:
  • bacterial reproduction is accelerated in weightless space. 在失重的空间,细菌繁殖加快了。
  • brain lesions can be caused by bacterial infections. 大脑损伤可能由细菌感染引起。
2 1kmzty     
n.剩余物,残留物;遗体,遗迹
参考例句:
  • he ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • the remains of the meal were fed to the dog.残羹剩饭喂狗了。
3 gfpzp     
adj.充满…的,伴有(危险等)的;忧虑的
参考例句:
  • the coming months will be fraught with fateful decisions.未来数月将充满重大的决定。
  • there's no need to look so fraught!用不着那么愁眉苦脸的!
4 4u3z1l     
(缩)deoxyribonucleic acid 脱氧核糖核酸
参考例句:
  • dna is stored in the nucleus of a cell.脱氧核糖核酸储存于细胞的细胞核里。
  • gene mutations are alterations in the dna code.基因突变是指dna密码的改变。
5 bqsxh     
n.高度;海拔;高地;上升;提高
参考例句:
  • the house is at an elevation of 2,000 metres.那幢房子位于海拔两千米的高处。
  • his elevation to the position of general manager was announced yesterday.昨天宣布他晋升总经理职位。
6 yrpz7     
n.少女,处女;adj.未婚的,纯洁的,无经验的
参考例句:
  • the prince fell in love with a fair young maiden.王子爱上了一位年轻美丽的少女。
  • the aircraft makes its maiden flight tomorrow.这架飞机明天首航。
7 bo9zl     
adj.(疾病)长期未愈的,慢性的;极坏的
参考例句:
  • famine differs from chronic malnutrition.饥荒不同于慢性营养不良。
  • chronic poisoning may lead to death from inanition.慢性中毒也可能由虚弱导致死亡。
8 ijxz4     
n.传单,小册子,大片(土地或森林)
参考例句:
  • he owns a large tract of forest.他拥有一大片森林。
  • he wrote a tract on this subject.他曾对此写了一篇短文。
9 bprym     
n.结核病,肺结核
参考例句:
  • people used to go to special health spring to recover from tuberculosis.人们常去温泉疗养胜地治疗肺结核。
  • tuberculosis is a curable disease.肺结核是一种可治愈的病。
10 muozlg     
adj.毁灭性的,令人震惊的,强有力的
参考例句:
  • it is the most devastating storm in 20 years.这是20年来破坏性最大的风暴。
  • affairs do have a devastating effect on marriages.婚外情确实会对婚姻造成毁灭性的影响。
11 5p3xr     
n.浮现,显现,出现,(植物)突出体
参考例句:
  • the last decade saw the emergence of a dynamic economy.最近10年见证了经济增长的姿态。
  • language emerges and develops with the emergence and development of society.语言是随着社会的产生而产生,随着社会的发展而发展的。
12 ojhyf     
adv.准确地,精确地
参考例句:
  • it is hard to hit the ball accurately.准确地击中球很难。
  • now scientists can forecast the weather accurately.现在科学家们能准确地预报天气。
13 96zyv     
adj.法庭的,雄辩的
参考例句:
  • the report included his interpretation of the forensic evidence.该报告包括他对法庭证据的诠释。
  • the judge concluded the proceeding on 10:30 am after one hour of forensic debate.经过近一个小时的法庭辩论后,法官于10时30分宣布休庭。
14 d3lyb     
adj.致死的;毁灭性的
参考例句:
  • a hammer can be a lethal weapon.铁锤可以是致命的武器。
  • she took a lethal amount of poison and died.她服了致命剂量的毒药死了。
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tag标签: infection mummy protein
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