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环球英语 — 409:Bone Marrow Donation

时间:2011-10-13 06:29来源:互联网 提供网友:MarcoHoo   字体: [ ]
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  Voice 1
Thank you for joining us for today’s Spotlight1 program. I’m Ruby2 Jones.
Voice 2
And I’m Ryan Geertsma. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live.
Voice 1
Imagine you are 25 years old, but you have just one year to live. What would you do? Adrian Sudbury is a young man from the United Kingdom. Just a year and a half ago, Adrian had thick brown hair and a healthy, strong body. Today, Adrian has no hair and his body is weak. Doctors have now told him he has only a few months or even weeks to live.
Voice 2
This news is hard for Adrian, but it is not completely unexpected. In 2006 doctors told Adrian that he had two kinds of leukaemia. Together these two kinds of blood cancer are very deadly.
Voice 1
Adrian needed chemotherapy. Chemotherapy is a treatment that uses strong drugs to kill cancer cells. However, the strong drugs also kill many of the patient’s good cells. In particular, they kill the patient’s "bone marrow3 stem4 cells".
Voice 2
Bone marrow is the soft substance inside a bone. It contains many "stem cells". These "stem cells" create the body’s blood cells -so people need good stem cells to make healthy blood. In patients like Adrian, doctors must replace the bone marrow stem cells that the chemotherapy destroys. The new cells often come from a donor5 - a person willing to give some of their stem cells. The whole process is called a Bone Marrow Transplant6. It is not an easy process for sick patients like Adrian. It is often the only medical hope. But it does not always provide a cure.
Voice 1
Sadly, Adrian’s bone marrow transplant did not cure him completely. However, it did give him another year of life. After the treatment, Adrian had many more good blood cells. He was able to travel. He continued working as a writer. And he started a blog - his own website about his life.
Voice 2
During this year, Adrian also learned a lot more about bone marrow transplants7. He learned that many people in the world need bone marrow transplants. However, most people waiting for bone marrow transplants cannot find donors8. Adrian decided9 it was important to teach everyone about the need for bone marrow donation. And he is spending the rest of his life doing just that. Adrian says:
Voice 3
“I want to make a lasting10 change by teaching people. I am going to try to do what I can... The problem is that people think bone marrow donation is some horrible process. I want to show as many people as possible that it is not like that.”
Voice 1
One problem is in the name of the treatment “bone marrow transplant”. The name makes people think of doctors taking stem cells from right inside the bone of the donor. Years ago, that was the only method they had, but things are different today.
Voice 2
Today, doctors usually get the stem cells from the donor’s blood. They do this through a process called apheresis. They use a needle to take blood from the donor’s arm. The blood passes through a machine that separates the stem cells from the rest of the blood. The rest of the blood returns into the donor’s body. The stem cells are then given to the patient who needs them.
Voice 1
The simple act of donating blood cells can save lives. But there are not enough donors. Not just any donor can give cells to any patient. A donor’s blood cells have to “match” the patient’s cells. They need to be very similar to a patient’s or the patient’s body will reject them. This can make finding a donor for a patient very difficult.
Voice 2
Many countries have created "registries". Registries are lists of bone marrow stem cell donors. These registries are very helpful to patients who need bone marrow transplants. Their doctors can look through the registries to find donors.
Voice 1
However, finding a matching donor is still hard. To be a good match, the donor and patient need to be genetically11 similar. Some patients find a donor in their own family. But most others need to find matching donors among people of their own ethnic12 group. A big problem is that most registry donors are from Western European ethnic groups. It is very difficult for people of other ethnic groups to find donors. And it is even more difficult for people of mixed ethnic history.
Voice 2
No country or ethnic group has enough donors. Many countries are creating wonderful bone marrow transplant programs. They are building centres, training doctors and saving lives. But they still need local donors.
Voice 1
For example, Dr. Kumar is an expert in bone marrow transplants from New Delhi, India. He explains how American and European registries are of limited use in India. Most donors in these registries are white people - Caucasians. He says,
Voice 4
“It is difficult to find a match for Asians in many of the established registries. These registries are from North America or Europe. They contain mostly Caucasians. But Caucasians and Asians have different genes13.”
Voice 2
49 countries now have registries. However, many of the registries are very small. People of every ethnic group in every country must become donors. This is the only way all bone marrow transplant patients will have an equal chance of finding a donor. People who become registered donors will help the people of their country. However, they may also help people far away. That is because local registries are now connected through an international registry program.
Voice 1
Adrian Sudbury is using the rest of his life to encourage people to join a bone marrow transplant registry. Spotlight would like to help by giving a few facts about being a donor:
Voice 5
Organ donors are often dead people, but bone marrow stem cell donors are living people, like us, like you.
Voice 6
People who are willing to be donors put their names on a list, or registry.
Voice 7
Registries need people from all ethnic groups, but especially non-whites.
Voice 5
Only a small percentage of people who put their name in a registry are ever asked to donate. This is because “matching” is difficult.
Voice 6
People on the registry list can change their mind and say “No”.
Voice 7
Most donors do not in fact donate bone marrow. Instead they donate stem cells from their blood.
Voice 5
The best age for donors is eighteen to forty years, but people can still donate up to the age of sixty.
Voice 2
Imagine. Could you help save a life of someone needing bone marrow stem cells? Could your joining a registry help someone near to you or even someone across the world? Is there a registry where you live?
Voice 1
You will find a link to a list of registries on the script page of this program on the Spotlight website radio.english.net.
 


点击收听单词发音收听单词发音  

1 spotlight 6hBzmk     
n.公众注意的中心,聚光灯,探照灯,视听,注意,醒目
参考例句:
  • This week the spotlight is on the world of fashion.本周引人瞩目的是时装界。
  • The spotlight followed her round the stage.聚光灯的光圈随着她在舞台上转。
2 ruby iXixS     
n.红宝石,红宝石色
参考例句:
  • She is wearing a small ruby earring.她戴着一枚红宝石小耳环。
  • On the handle of his sword sat the biggest ruby in the world.他的剑柄上镶有一颗世上最大的红宝石。
3 marrow M2myE     
n.骨髓;精华;活力
参考例句:
  • It was so cold that he felt frozen to the marrow. 天气太冷了,他感到寒冷刺骨。
  • He was tired to the marrow of his bones.他真是累得筋疲力尽了。
4 stem ZGrz8     
n.茎,干,船首,词干,血统;vt.堵住,阻止,抽去梗;vi.起源于,发生
参考例句:
  • Cut the stem cleanly,just beneath a leaf joint.把茎切整齐点,正好切在叶根下。
  • The ship was in a blaze from stem to stern.整艘船从头到尾都着火了。
5 donor dstxI     
n.捐献者;赠送人;(组织、器官等的)供体
参考例句:
  • In these cases,the recipient usually takes care of the donor afterwards.在这类情况下,接受捐献者以后通常会照顾捐赠者。
  • The Doctor transplanted the donor's heart to Mike's chest cavity.医生将捐赠者的心脏移植进麦克的胸腔。
6 transplant 9mrww     
n.移植的器官或植物;v.使迁移,使移居
参考例句:
  • Some plants do not transplant well.有些植物不宜移植。
  • Several of the patients had received kidney transplant.病人中有几位已接受了肾移植手术。
7 transplants 615012b81d2624e35ca0287ebfcfa467     
n.(器官、皮肤、头发等的)移植( transplant的名词复数 );移植的器官,移植物
参考例句:
  • The heart transplants have been read about and discussed everywhere. 人们已读到关于心脏移植的报道,到处都在议论此事。 来自《简明英汉词典》
  • A number of terms are used in various classifications of transplants. 移植物的各种分类中应用了一系列的名词。 来自辞典例句
8 donors 89b49c2bd44d6d6906d17dca7315044b     
n.捐赠者( donor的名词复数 );献血者;捐血者;器官捐献者
参考例句:
  • Please email us to be removed from our active list of blood donors. 假如你想把自己的名字从献血联系人名单中删去,请给我们发电子邮件。
  • About half this amount comes from individual donors and bequests. 这笔钱大约有一半来自个人捐赠及遗赠。 来自《简明英汉词典》
9 decided lvqzZd     
adj.决定了的,坚决的;明显的,明确的
参考例句:
  • This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
  • There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。
10 lasting IpCz02     
adj.永久的,永恒的;vbl.持续,维持
参考例句:
  • The lasting war debased the value of the dollar.持久的战争使美元贬值。
  • We hope for a lasting settlement of all these troubles.我们希望这些纠纷能获得永久的解决。
11 genetically Lgixo     
adv.遗传上
参考例句:
  • All the bees in the colony are genetically related. 同一群体的蜜蜂都有亲缘关系。
  • Genetically modified foods have already arrived on American dinner tables. 经基因改造加工过的食物已端上了美国人的餐桌。 来自英汉非文学 - 生命科学 - 基因与食物
12 ethnic jiAz3     
adj.人种的,种族的,异教徒的
参考例句:
  • This music would sound more ethnic if you played it in steel drums.如果你用钢鼓演奏,这首乐曲将更具民族特色。
  • The plan is likely only to aggravate ethnic frictions.这一方案很有可能只会加剧种族冲突。
13 genes 01914f8eac35d7e14afa065217edd8c0     
n.基因( gene的名词复数 )
参考例句:
  • You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因,所以能够活得很长。 来自《简明英汉词典》
  • Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。 来自英汉非文学 - 生命科学 - 生物技术的世纪
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