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 Brain Cancer Like Kennedy's Is Difficult to Treat(2/2) ( 本次听写约193词 )
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Some cancer experts believe that doctors are unlike to operate on senator Kennedy. They say the likely treatment is radiation and chemotherapy. But chemical treatment for cancer is complex. Because of their protective blood brain barrier . It stops some chemicals form entering the brain. Including many chemo drugs.
Radiation treatment for brain cancer has improved a lot in recent years. New methods and equipments can prevented locally instruments but permit extremely localized treatments that are less likely to damage healthy tissue.
Research into brain cancer treatment also includes drug therapy. In 2005, a drug called tachzomphyed temozolomide was shown to add a few months to the lives brain cancer patients. And researchers are studying uses for cancer drug a vested avastin. It is already used to treat breast, colon and lung cancer. It starts to means starves tumors by fine bulking blocking blood flow to the growths
The united states has about ten thousands new cancers gliomas a year. Half of the people die within 15 month. Malignant gliomas are moral aggressive in older people. Ted Kennedy is 76 years old. The senator competed Monday in the second half of a boat race in Massachusetts. Finishing second in his five boat division  部分癌症专家认为医生们不太可能对肯尼迪议员进行手术．他们认为可能采取的治疗方法是放射法化学化疗法．但是化学疗法用于癌症很复杂．因为血液对脑部会形成一个保护屏障．它可以阻止一部化学成分进入脑部，其中包括许多化学药品．放射疗法在近几年对于治疗脑癌已有了很大的提高．新的疗法和设备可以极揣的针对的对某个部位进行治疗而不会破坏其它的健康组织．对于脑癌的疗法也可以使用药品治疗．2005年，一种叫temozolomide的药品可以延长脑癌患者15个月的生命．研究人员还在对癌症药物avastin进行研究．它的一些成果已应用于乳腺癌，结肠癌及肺癌．它是通过改变血液的流动速度而使肿瘤萎缩．美国每年大约有上万个胶质瘤导致的癌症．半数的人在15个月内会死亡．恶性肿瘤对于年老的人尤其具有攻击力．特德.肯尼迪今年76岁．他周一参加了在马塞储塞举行的划船赛的后半场，在五人组比赛中他获得第二名． |
参考译文
肯尼迪所患的脑癌难以治疗
一些肿瘤专家认为，医生可能将不给参议员肯尼迪做手术，而可能采用放疗和化疗。但是由于血-脑屏障的保护作用，用化学疗法医治脑癌很复杂。血-脑屏障能阻止某些化学分子进入大脑，包括许多化学药物。
用放射法治疗脑癌在最近几年有所提高。新方法和仪器能准确定位，几乎不可能伤害到健康的组织。
对脑癌的研究同样包括药物治疗。2005年，一种叫替莫唑胺（抗肿瘤药物）的新药能使脑癌患者的生命延长几个月。并且，研究者们正在探讨抗癌药--阿瓦斯汀的使用范围。该药已经用于治疗乳腺癌，结肠癌和肺癌。它能阻断对肿瘤的生长至关重要的血液供应。
美国每年大约新增1万名胶质瘤患者。一半的人在15个月内死亡。年龄大的人更容易得恶性胶质瘤。特德•肯尼迪现在76岁了。周一，他还参加了马萨诸塞州帆船比赛的下半段赛程，在五人一组的比赛中位列第二。
posted on 2008-06-05 13:19
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