首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
One of the most fashionable treatments for disease, gene therapy, has so far made little headway in tackling one of the most mod
One of the most fashionable treatments for disease, gene therapy, has so far made little headway in tackling one of the most mod
admin
2010-06-17
82
问题
One of the most fashionable treatments for disease, gene therapy, has so far made little headway in tackling one of the most modish of illnesses, AIDS and the human immunodeficiency virus (HIV) that causes it. (46)
The idea of gene-therapy treatment for HIV/AIDS would be to create a gene that, when placed in an infected person, would make all of the offspring of the cell into which it was inserted resistant to the virus.
Even if the virus continued to destroy the patient’s immune cells, new ones that could not be infected would replace them. Eventually, the disease would no longer threaten the health of the patient.
A first step towards this has been achieved by researchers at the University of Pennsylvania and VIRXSYS, a biotechnology firm based near Baltimore. (47)
Rather than inserting a gene directly, they removed the immune cells from people and replaced them with versions that had been modified to resist the virus.
The results were published in this week’s issue of the Proceedings of the National Academy of Sciences.
The team treated five infected patients who had not responded to at least two different programmes of treatment using conventional anti-retroviral drugs. They removed from each patient’s blood the cells called "helper T-cells" that would normally mobilise the immune response to the virus. (48)
These were purified and stuffed with a form of HIV that had been altered to carry a mirror image or "antisense" version of a molecule that enables it to multiply.
This genetic fiddling disrupted the reproduction of the virus inside infected cells.
Such a small experiment was designed merely to establish whether the approach was safe. But the researchers were pleasantly surprised to find that the number of viruses in each patient dropped. This suggests that the treatment was tackling the disease effectively in difficult patients for whom conventional drugs had failed. (49)
According to Carl June of the University of Pennsylvania, their immune systems responded "as if they were on a vaccine" and it appeared as though their bodies were "vaccinating themselves" against HIV.
The researchers are now moving to the next phase of study, which will involve more patients, including those whose disease is in its early stages. (50)
If later trials confirm the early positive results, this approach could prove a useful complement to existing drugs or a future vaccine—and may even replace them.
选项
答案
这些细胞被净化后,再用一种带有反射图像或者分子的"抗感觉"变种的一种艾滋病毒来填充,该变种可以使改变后的病毒繁殖。
解析
定语从句的翻译。复合句。句子主干为 These were purified and stuffed with a form of HIV。第一个that引导定语从句修饰HIV,前置译;第二个that引导定语从句修饰version,译成主谓结构。
转载请注明原文地址:https://kaotiyun.com/show/Nd44777K
0
考研英语一
相关试题推荐
Whenveteransofthelastdotcomboomnamecompaniesthatsymbolizetheexcessesofthelate1990s,theyinvariablyincludeWebv
Writeanessaybasedonthefollowingchart.Inyourwriting,youshould1)interpretthechart,and2)giveyourcomments.You
Aninvisibleborderdividesthosearguingforcomputersintheclassroomonthebehalfofstudents’careerprospectsandthosea
Ahistoryoflongandeffortlesssuccesscanbeadreadfulhandicap,but,ifproperlyhandled,itmaybecomeadrivingforce.Wh
Inacountrywithashrinkingpopulation,thelatesttrendinGermany’shighereducationissomethingofamystery:thenumbero
Nowadays,theyoungergenerationreallyreliesonthepowerofthe"Internet"whenitcomestosearchingforinformation.Pe
Theword"schism"(Line3,Paragraph1)inthecontextprobablymeans______.Whichofthefollowingistrueaccordingtothep
Whichkindoffoodisrecommendedtopreventheartdisease,cancer,diabetes,highbloodpressure,stroke,andweakbones?The
Inthetwodecadesbetween1910and1930,overtenpercentoftheBlackpopulationoftheUnitedStateslefttheSouth,whereth
随机试题
腹膜刺激征的发生机制为()
以下关于情志相互制约的说法正确的是
常用抗凝药包括
A.手少阴心经 B.手少阳三焦经 C.手太阳小肠经 D.足太阳膀胱经 E.足厥阴肝经入掌内后廉,循小指之内,出其端的经脉是
采用水泥粉煤灰碎石桩加固路堤地基时,设置土工格栅碎石垫层的主要作用是()。
成本推动型通货膨胀理论是从()方面来分析通货膨胀的成冈。
人民法院审理离婚案件时,无过错方请求离婚损害赔偿应得到法院支持的情形有()
大卫体格健壮,神态坚定,左手轻推肩上的投石带,在投入战斗前的瞬间,他侧首__________左前方,目光如炬。《大卫》象征着为正义事业而奋斗的力量,雕塑家在他身上__________了自己炽烈的爱国主义理想。依次填入划横线部分最恰当的一项是(
Itseemstomethatthemainrequirementofaninternationallanguageisthatit______easilylearned.
OnefeatureofnewfoundwealthinthedevelopingworldhasbeentheembraceofWesternluxurylabels.Butsincetheglobalecono
最新回复
(
0
)