English 中文網 漫畫網 愛新聞iNews 翻譯論壇
    中國網站品牌欄目(頻道)
    當前位置: Language Tips > Special Speed News VOA慢速

    Designing an alternative to antibiotics

    [ 2012-09-07 10:34] 來源:中國日報網     字號 [] [] []  
    免費訂閱30天China Daily雙語新聞手機報:移動用戶編輯短信CD至106580009009

    Get Flash Player

    Get Flash Player

    Download

    This is the VOA Special English Health Report.

    In 1928 a British scientist made a "chance observation." He noticed that some mold had grown in bacteria in a culture plate in his laboratory. Molds can do that. But this mold that had somehow gotten into the plate had the ability to kill the bacteria around it.

    The scientist, Alexander Fleming, found that the mold was a member of a common group known as Penicillium. Fleming and two other scientists -- Ernst Boris Chain and Howard Walter Florey -- went on to win the Nobel Prize in 1945. They were honored "for the discovery of penicillin and its curative effect in various infectious diseases."

    Other powerful antibiotics have been discovered since penicillin. But many antibiotics have become less and less effective as the germs they are designed to kill develop resistance.

    So scientists are searching for new ways to treat infections. Now, researchers in Australia say they have made a important discovery. Scientists at Monash University in Melbourne believe an antibacterial viral protein called PlyC could be used as an alternative to antibiotics.

    This protein was first identified as a possible treatment for infections in 1925. But the research ended following the discovery of antibiotics.

    Now, scientists have spent six years studying the structure of the protein. They have found how it kills the bacteria that cause sore throats, pneumonia and streptococcal toxic shock syndrome.

    Australian researchers worked with scientists at the Rockefeller University in New York and the University of Maryland. Their findings appear in the Proceedings of the National Academy of Sciences.

    Dr. Sheena McGowan from Monash University describes the protein as a powerful bacterial killing machine. She says it looks like a flying saucer carrying a pair of warheads. It connects to the surface of the bacterium and then cuts though the outside to destroy it.

    Sheena McGowan says it could be highly valuable when conditions like pneumonia do not respond to traditional treatments.

    SHEENA MCGOWAN: "There's antibiotics at the moment for those particular types of diseases. We sort of see that there's a bit of resistance being built up in the bacterial community almost, and some of our antibiotics aren't quite as effective as they used to be. So this kind of ground route, basic research needs to be done quite early so that we have some time to develop them as safe human therapeutic over the timeframe when the antibiotics can keep working."

    The researchers have been studying PlyC's atomic structure to try to develop a drug. They say they have had success in treating streptococcal infections in mice. But an effective human treatment in the form of a pill or nasal spray may be at least ten years away.

    And that's the VOA Special English Health Report. I'm Steve Ember

    相關閱讀

    National 9/11 museum at standstill as anniversary nears(視頻)

    US automakers bet billions on Russian car boom(視頻)

    Easing pain in the sick and dying

    Men face higher death risk, but why?

    (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010-84883631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。
     

    關注和訂閱

    人氣排行

    翻譯服務

    中國日報網翻譯工作室

    我們提供:媒體、文化、財經法律等專業領域的中英互譯服務
    電話:010-84883468
    郵件:translate@chinadaily.com.cn
     
     
    亚洲最大av无码网址| 久久亚洲AV成人无码国产| 亚洲精品99久久久久中文字幕| 无套内射在线无码播放| 中文字幕在线视频网| 午夜无码视频一区二区三区| 日木av无码专区亚洲av毛片| 国产aⅴ激情无码久久| 最近2019年免费中文字幕高清| 亚洲AV无码一区二区大桥未久| 无码人妻精品一区二区三18禁 | 国产AV无码专区亚洲AV毛网站| 无码人妻丰满熟妇区BBBBXXXX| 无码人妻品一区二区三区精99| 天堂√最新版中文在线天堂| 国产成人AV无码精品| 少妇人妻偷人精品无码视频新浪 | 麻豆AV无码精品一区二区| 中文字幕无码人妻AAA片| 69ZXX少妇内射无码| 久久精品无码专区免费青青| 99久久人妻无码精品系列蜜桃| 无码专区久久综合久中文字幕| 蜜桃AV无码免费看永久| 久久亚洲2019中文字幕| 国内精品久久久久久中文字幕 | 亚洲精品欧美二区三区中文字幕| 国产在线精品无码二区| 中文成人无码精品久久久不卡| 最好看2019高清中文字幕| 天堂8а√中文在线官网| 久久国产高清字幕中文| 中文字幕免费视频一| 亚洲欧美综合在线中文| 天堂√最新版中文在线| 中文字幕无码乱人伦| 国产啪亚洲国产精品无码| 日韩电影无码A不卡| 中文字幕国产精品| 色综合久久精品中文字幕首页| 亚洲人成影院在线无码观看|