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)

 
中國日報網英語點津版權說明:凡注明來源為“中國日報網英語點津:XXX(署名)”的原創作品,除與中國日報網簽署英語點津內容授權協議的網站外,其他任何網站或單位未經允許不得非法盜鏈、轉載和使用,違者必究。如需使用,請與010-84883561聯系;凡本網注明“來源:XXX(非英語點津)”的作品,均轉載自其它媒體,目的在于傳播更多信息,其他媒體如需轉載,請與稿件來源方聯系,如產生任何問題與本網無關;本網所發布的歌曲、電影片段,版權歸原作者所有,僅供學習與研究,如果侵權,請提供版權證明,以便盡快刪除。

中國日報網雙語新聞

掃描左側二維碼

添加Chinadaily_Mobile
你想看的我們這兒都有!

中國日報雙語手機報

點擊左側圖標查看訂閱方式

中國首份雙語手機報
學英語看資訊一個都不能少!

關注和訂閱

本文相關閱讀
人氣排行
熱搜詞
 
 
精華欄目
 

閱讀

詞匯

視聽

翻譯

口語

合作

 

關于我們 | 聯系方式 | 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. 版權聲明:本網站所刊登的中國日報網英語點津內容,版權屬中國日報網所有,未經協議授權,禁止下載使用。 歡迎愿意與本網站合作的單位或個人與我們聯系。

電話:8610-84883645

傳真:8610-84883500

Email: [email protected]

主站蜘蛛池模板: 99热这里只有免费国产精品 | 日韩欧美国产偷亚洲清高 | 天天躁日日躁aaaa视频 | 99精品欧美一区二区三区综合在线 | www.色婷婷| 一个人看aaaa免费中文 | 欧洲成人午夜免费大片 | 欧洲精品视频在线观看 | 色婷婷六月天 | 免费看黄a | 91精品国产综合久久久密闭 | 很黄很暴力深夜爽爽无遮挡 | 一区二区免费 | 91拍拍在线观看 | 中文字幕免费 | 成人激情免费视频 | 久久亚洲精品国产精品婷婷 | 国产嫩草影院在线观看 | 九九51精品国产免费看 | 日本免费高清一区 | 波多野结衣全部系列在线观看 | 成人综合视频网 | 三级网站在线播放 | 欧美一区二区三区中文字幕 | 99精品视频在线 | 操人视频在线观看 | 99亚洲精品| 亚洲午夜日韩高清一区 | 啪啪网免费 | 国产中文字幕在线 | 激情五月婷婷色 | 91天堂| 欧美成人精品第一区首页 | 一区二区高清在线观看 | 午夜a级片| 四色永久| 午夜视频1000 | 免费搞黄网站 | 岛国av在线| 国内成人啪啪网站 | 久久中文字幕一区二区 |