Hi,
订阅
报纸
纸质报纸 电子报纸
手机订阅 微商城
英语
学习
双语学习 热点翻译 英语视频
实用口语 报纸听力 欧美金曲
教育
信息
最新动态 活动预告
备课资源 语言文化
演讲
比赛
精彩演讲
活动动态
用报
专区
中学Teens
小学Kids

Printing a new heart

科学家首次3D打印出人类心脏

中文 英文 双语 2019-07-24    来源:21世纪学生英文报·高一      阅读数:99063
字号 [] [] [] 打印
你的机器需要安装最新的Flash播放器,点这里获得

导读:用3D打印技术打印人类心脏听起来像是天方夜谭,但最近来自以色列特拉维夫大学的科学家们却做到了!这一医学界的重大突破,也让不少心脏病患者看到了新希望……

Israeli scientists can now create a 3D-printed heart. TNS

Heart disease is one of the major killers in the world today. Many who suffer from it must have heart transplants. However, it’s difficult to get a suitable heart donation, and even if a patient survives the wait, his or her body often rejects the heart.
心脏病是如今全球的头号杀手之一。许多心脏病患者都需要接受心脏移植。然而,病患们很难找到合适的心源,就算真的遇上了,身体也经常会对移植的心脏产生排斥反应。

But there is now new hope for sufferers of heart disease. According to a study published in the journal Advanced Science, researchers from Israel’s Tel Aviv University printed a 3D human heart on April 15.
但如今,心脏病患者有了新希望。据《尖端科学》期刊上刊登的一项研究表明,来自以色列特拉维夫大学的研究人员已于4月15日3D打印出了一颗人类心脏。

“This is the first time anyone anywhere has successfully engineered and printed an entire heart,” professor Tal Dvir told CNN.
“这是人类首次成功设计并打印出一颗完整的心脏,”塔尔·德维尔在接受美国有线电视新闻网采访时表示。

Unlike the previous 3D-printed heart structure, the new heart is complete with cells, blood vessels, chambers and other structures a heart needs to function normally. But scientists still have more to figure out before the 3D-printed heart can be fitted into the body. For one thing, the experimental heart is only the size of a thumb. And, although it can contract like a muscle, it cannot pump out blood like a real one. At present, the heart prototype is like a tiny airplane that has all of the right parts, but can’t fly.
和先前3D打印出的心脏结构不同的是,这颗新的心脏具备细胞、血管、心室以及其他心脏正常运作所需的结构。但科学家们仍需进行进一步的研究,才能将这颗3D打印心脏放入人体。一方面,这颗实验心脏只有拇指大小。另一方面,尽管它能像肌肉一样收缩,但却不能像真正的心脏那样具备泵血功能。目前来看,这颗心脏样品就像一架设备齐全、却还不能起飞的小飞机。

However, the development is still regarded as a major breakthrough in medicine.
但这次的研制成果依然被视为医学界的一项重大突破。

In the experiment, the researchers turned human fat tissue into human heart tissue with stem cell technology. The tissue was then turned into “bio-ink” for a 3D printer to ensure that tissue in the heart came from the patients themselves. So ideally, if it were to be placed in the body of someone in need of a transplant, there would be less risk of organ rejection.
在实验过程中,研究人员用干细胞技术将人类脂肪组织转变为人类心脏组织。该组织将作为3D打印机的“生物墨水”,确保心脏中的组织来自患者本人。因此,在理想情况下,如果这颗心脏被放入需要进行移植的患者体内,产生器官排斥反应的风险将会降低。

“Patients will no longer have to wait for transplants or take medications to prevent their rejection,” researchers told USA Today. “Instead, the needed heart will be printed, fully personalized for every patient.”
“患者们无需等待移植,或者吃药预防排斥反应,”研究人员们在接受《今日美国》采访时表示。“所需的心脏将被打印出来,完全为每位患者量身定制。”

But the scientists think that 3D printing can be used to create other human organs. They foresee a time when the 3D printing of organs will be an everyday medical practice.
而科学家们认为,3D打印也能被用于打印其他人体器官。他们预见有朝一日3D打印器官将会成为日常医疗实践。

“Maybe, in 10 years, there will be organ printers in the finest hospitals around the world and these procedures will be conducted routinely,” Dvir said.
“或许10年内,全球最好的医院内都会配备器官打印机,而这些操作将会十分常见,”德维尔表示。

21英语网站版权说明  (Translator & Editor: Wang Xingwei AND Luo Sitian)


以上文章内容选自《21世纪学生英文报高中版》,详情请见《21世纪学生英文报高中版》高一751期
辞海拾贝
Transplants移植 Rejects排斥
Blood vessels血管 Chambers心室
Thumb拇指 Contract收缩
Prototype样品 Fat tissue脂肪组织
Stem cell干细胞 Personalized个性化的


 


 主办
联系我们   |    广告业务   |    诚聘英才   |   演讲比赛   |   关于我们   |   手机访问
有意与本网站合作者,有关合作事宜请联系我们。未经21英语网书面授权,请勿转载或建立镜像,否则即为侵权。
主办单位:中国日报社 Copyright www.i21st.cn All Rights Reserved 版权所有 复制必究
网站信息网络传播视听节目许可证0108263   京ICP备13028878号-12   京公网安备 11010502033664号

标题
内容
关闭
内容