<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区
          WORLD> Global General
          Gum disease can lead to AIDS
          (China Daily)
          Updated: 2009-02-13 07:43

          An acid produced in the mouth due to gum disease invigorates the virus that can lead to full-blown AIDS, a Japanese researcher said Thursday, billing the finding as a world first.

          A group of bacteria causes periodontal disease - a chronic inflammation that erodes bony structure in the gum - posing a threat to the teeth and the entire body, the researcher said.

          "They produce a large amount of butyric acid, which smells like socks you wore for a long time," said Kuniyasu Ochiai, professor who chairs the Microbiology Department at Tokyo-based Nihon University.

          The acid hinders a kind of enzyme called HDAC that blocks HIV from proliferating, Ochiai said.

          In-vitro experiments have shown that the virus in two kinds of cells related to the immune system rapidly proliferates after given culture fluid containing the gum disease-causing bacteria and butyric acid they produced, he said.

          "Serious periodontal disease could lead to the development (of AIDS) among HIV-positive people... although the probability largely depends on individual physical strength," Ochiai said.

          主站蜘蛛池模板: 日韩精品无码专区免费播放| 亚洲av永久无码精品漫画| 国产毛片三区二区一区| 精品国内自产拍在线观看| 欧美极品色午夜在线视频| 无码日韩做暖暖大全免费不卡| 国产一区二区不卡在线视频| 国产在线啪| 亚洲中文字幕第二十三页| 久久天天躁夜夜躁狠狠| 亚洲午夜无码av毛片久久| 尤物国产精品福利在线网| 99精品人妻少妇一区| 亚洲の无码国产の无码步美| 二区三区国产在线观看| 国产爽片一区二区三区| 深夜在线观看免费av| 最近的最新的中文字幕视频| 一级片一区二区中文字幕| 成人午夜视频一区二区无码| 中文字幕va一区二区三区| 亚洲午夜天堂| 国产精品成人99一区无码| 国产精品 自在自线| 欧美a在线播放| 亚洲男人AV天堂午夜在| 青青青视频91在线 | 国产日韩av一区二区在线| 亚洲国产成人久久一区久久| 国产成人精品18| 狠狠噜天天噜日日噜| 天下第一社区在线观看| 国产精品一区在线蜜臀| 韩国一级永久免费观看网址| 亚洲av午夜成人片| 日韩视频免费| 成人午夜福利精品一区二区| 日韩av裸体在线播放| 亚洲最大色综合成人av| 国产国拍精品av在线观看| 久久一日本综合色鬼综合色|