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基因治疗(gene therapy)
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Using HIV Virus to Cure CancerScientists are planning to use human immuno deficiency（免疫缺陷）virus(HIV) , one of mankind's most feared viruses,as a carrier of genes which can fight cancer and a range of diseases that cannot be cured.The experts say HIV has an almost perfect ability to avoid the body's immune（免疫的）defenses, making it ideal for carrying replacement genes into patients'bodies,according to the Observer.A team at the California-based Salk Institute,one of the world's leading research centers on biological sciences,has created a special new breed of HIV and has started negotiations with the U.S.Food and Drug Administration(FDA)to begin clinical gene therapy（治疗）trials this year.The first trials are expected to involve patients suffering from cancers that cannot be cured by surgery although project leader Professor Inder Verma said the HIV technique would have“far wider applications”.The plan remains very likely to cause controversy since it involves making use of a viruswhich has caused more than 22 million deaths around the world in the past two decades.Verma said that the idea of using HIV for a beneficial purpose was“shocking”but the fierce nature of HIV had disappeared by having all six of the potentially deadly genes removed.Illnesses such as various cancers are caused when a gene in a patient's body fails to work properly.In the past two years, breakthroughs in genetics（遗传学）have led gene therapy sci-entists to try and replace the genes that do not function normally.Unfortunately,the body's immune defenses have been known to attack the modified genes and make them lose their effects before they can start their task and progress in the field has been held up by the lack of a suitable carrier.The HIV virus has the ability to escape from,and then destroy,the immune defense cells designed to protect our bodies and this makes it attractive to scientists as a way of secretly conveying replacement genes into patients'bodies.Other countries are also expected to begin clinical gene therapy trials soon.A:RightB:WrongC:Not mentioned
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Which of the following is TRUE according to the text？( ) A.The principle of gene therapy is applicable to that of cloning
B.The isolation of stem cells is too difficult to be feasible
C.It is reasonable for all body instructions to be activated
D.Cloned animals will eventually take control of the world
考题
Which of the following is TRUE according to the text？( ) A.The principle of gene therapy is applicable to that of cloning.
B.The isolation of stem cells is too difficult to be feasible.
C.It is reasonable for all body instructions to be activated.
D.Cloned animals will eventually take control of the world.
考题
在Pubmed中检索有关“感冒的药物治疗”的循证医学文献，最佳途径为（）A、Search （Common Cold and drug therapy）B、Search （Common Cold and drug therapy） Limits：Systematic ReviewsC、Search （Common Cold /drug therapy） Limits：Systematic ReviewsD、Search （Common Cold and drug therapy and EBM）
考题
名词解释题体细胞基因治疗（somatic cell gene therapy）
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