日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

 
 
 

Doctors Unveil Potential New Tool to Fight Brain Cancer

VOA 2016-05-11 14:31

 

Get Flash Player

The blood-brain barrier is a natural defense system that prevents harmful substances in the blood from entering the brain. Doctors may have found a way to get past the barrier to treat cancer patients.

Neurosurgeons have been using lasers to treat brain cancer since 2009, but now they say the technique may also allow them to deliver chemotherapy drugs directly into the brain.

The key is getting past the protective blood-brain barrier, which does its job so well it also keeps out potentially lifesaving chemotherapy drugs.

Kathy Smith has ovarian cancer that spread to her brain, a type of brain cancer called glioblastoma.

“There were I believe three tumors at that time and I was not at all happy about those critters,” she said.

Smith was treated with laser therapy. Doctors insert a tiny probe into the brain, directly to the cancer where it burns up the tumor from the inside out.

According to Washington University Neurosurgery Professor Eric Leuthardt, during the procedure it was discovered the therapy had an unintended effect on the blood-brain barrier.

“We were able to show that this blood-brain barrier is broken down for about four weeks after you do this laser therapy," he said. "So not only are you killing the tumor, you are actually opening up a window of opportunity to deliver various drugs and chemicals and therapies that could otherwise not get in there.”

In Kathy's case, a powerful, experimental chemotherapy drug called doxorubicin, which has been notoriously hard to get past the barrier was delivered directly into her brain.

“What is interesting is the blood-brain barrier is a two-way street," said Eric Leuthardt. "By breaking it down you can get things into the brain, but also by breaking it down, now things can go from your brain out into your circulation, to your peripheral system, which includes your immune system.”

And the immune system helps fight cancer.

The procedure is dangerous, a compromised blood-brain barrier puts the brain at risk, but so far it has worked well for Smith. Patients diagnosed with glioblastoma tumors usually survive just 15 months after diagnosis.

But Smith has been fighting her cancer since 2009.

“Kind of makes you smile when they say you are a good candidate for something new," she said. "So I got worked into that study and it did work out beautifully.”

The team of neurosurgeons, from Washington University in St. Louis are hoping to publish a more formal report on their work later this year.

Vocabulary

blood-brain barrier: 血腦屏障

(來源:VOA 編輯:Julie)

 
中國日報(bào)網(wǎng)英語點(diǎn)津版權(quán)說明:凡注明來源為“中國日報(bào)網(wǎng)英語點(diǎn)津:XXX(署名)”的原創(chuàng)作品,除與中國日報(bào)網(wǎng)簽署英語點(diǎn)津內(nèi)容授權(quán)協(xié)議的網(wǎng)站外,其他任何網(wǎng)站或單位未經(jīng)允許不得非法盜鏈、轉(zhuǎn)載和使用,違者必究。如需使用,請與010-84883561聯(lián)系;凡本網(wǎng)注明“來源:XXX(非英語點(diǎn)津)”的作品,均轉(zhuǎn)載自其它媒體,目的在于傳播更多信息,其他媒體如需轉(zhuǎn)載,請與稿件來源方聯(lián)系,如產(chǎn)生任何問題與本網(wǎng)無關(guān);本網(wǎng)所發(fā)布的歌曲、電影片段,版權(quán)歸原作者所有,僅供學(xué)習(xí)與研究,如果侵權(quán),請?zhí)峁┌鏅?quán)證明,以便盡快刪除。

中國日報(bào)網(wǎng)雙語新聞

掃描左側(cè)二維碼

添加Chinadaily_Mobile
你想看的我們這兒都有!

中國日報(bào)雙語手機(jī)報(bào)

點(diǎn)擊左側(cè)圖標(biāo)查看訂閱方式

中國首份雙語手機(jī)報(bào)
學(xué)英語看資訊一個(gè)都不能少!

關(guān)注和訂閱

本文相關(guān)閱讀
人氣排行
熱搜詞
 
 
精華欄目
 

閱讀

詞匯

視聽

翻譯

口語

合作

 

關(guān)于我們 | 聯(lián)系方式 | 招聘信息

Copyright by chinadaily.com.cn. All rights reserved. None of this material may be used for any commercial or public use. Reproduction in whole or in part without permission is prohibited. 版權(quán)聲明:本網(wǎng)站所刊登的中國日報(bào)網(wǎng)英語點(diǎn)津內(nèi)容,版權(quán)屬中國日報(bào)網(wǎng)所有,未經(jīng)協(xié)議授權(quán),禁止下載使用。 歡迎愿意與本網(wǎng)站合作的單位或個(gè)人與我們聯(lián)系。

電話:8610-84883645

傳真:8610-84883500

Email: [email protected]

主站蜘蛛池模板: 国产视频精品视频 | 超碰在线国产 | 日韩1页 | www.国产| 日韩一级片在线免费观看 | 91网站免费观看 | 中文字幕在线观看av | 欧美日韩国产精品 | 99这里只有精品66视频 | 国产精品视频第一区二区三区 | 一区二区高清在线观看 | 黄视频网站免费看 | 免费一区二区三区 | 四虎在线免费观看 | 日本毛片爽看免费视频 | 久久夜夜操妹子 | 国产亚洲综合在线 | 亚洲一级电影 | 国产主播在线看 | 国产欧美日韩在线播放 | 2018天天干夜夜操 | 日本高清免费不卡毛片 | 免费黄色大片在线观看 | 亚洲一区二区三区高清网 | videosex久久麻豆 | 97av在线| 午夜性色一区二区三区不卡视频 | 天天躁日日躁狠狠躁av麻豆 | 亚洲精品亚洲人成人网 | 一级片在线免费观看视频 | 中文字幕一区二区三区四区不卡 | 九九在线视频 | 国产精品久久久久久亚洲伦理 | 色综合久久天天综合观看 | 精品国产一区二区三区成人影院 | 国产精品一二三 | 日韩欧美日本 | 亚洲欧洲中文日韩久久AV乱码 | 99欧美精品 | 欧美精品一区三区 | 九热精品 |