<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
          Global EditionASIA 中文雙語Fran?ais
          Opinion
          Home / Opinion / Opinion Line

          Stringent approval procedure needed for medical research

          China Daily | Updated: 2017-11-22 07:54
          Share
          Share - WeChat

          Valery Spiridonov, the man who has volunteered to be the first person to undergo a head transplant, attends a news conference in Vladimir, Russia, June 25, 2015. The 30-year-old Russian, who has a degenerative muscle condition known as Werdnig-Hoffman, will be operated upon by Italian neurosurgeon Dr. Sergio Canavero who believes he has a 90 percent chance of success. [Photo/Agencies]

          REPORTS SAY THAT a team led by Professor Ren Xiaoping from Harbin Medical University successfully performed the first human head transplant on a corpse on Friday. Cjn.cn comments:

          Ren and his colleague, Italian surgeon Sergio Canavero, have announced the operation was a success. However, just as Ren himself admitted in a later interview, there is no standard for the "success" of such an operation.

          Besides, many doctors and medical professionals said they have only reconnected the severed blood vessels, tissues and nerves. There is no way to test whether signals or blood can pass through the re-connected channels.

          More important, the idea of head transplants has met fierce opposition in the West because of the ethical dilemmas it poses. In many Western countries, such head transplants, even if done on corpses, must pass a review by ethical commissions to get approval. Yet the operation has already been done in China and we have no idea whether any approval was sought and given.

          Canavero said their next step is to do head transplants on living humans. That should arouse our attention. We hope the medical authorities will review this plan.

          Some research programs that meet complicated legal, ethical, and moral obstacles overseas often prefer to do their tests in China, because the supervision here is not as strict.

          Science needs tolerance in order to make progress. However, before doing such procedures, we need strict evaluations to make sure they do not cross the moral and ethical bottom lines.

          A good example of this is cloning. Scientists have long successfully cloned sheep and cows, but it remains a forbidden zone to clone humans. Head transplants, if done on living humans, present identity dilemmas.

          Most Viewed in 24 Hours
          Top
          BACK TO THE TOP
          English
          Copyright 1994 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
          License for publishing multimedia online 0108263

          Registration Number: 130349
          FOLLOW US
          主站蜘蛛池模板: 亚洲AV无码专区亚洲AV桃| 久久人妻系列无码一区| 午夜福利不卡片在线播放免费| 真人无码作爱免费视频| 最新国产色视频在线播放| 色欲AV无码一区二区人妻| 亚洲最大成人av免费看| 无码人妻丰满熟妇区五十路在线| 乱人伦人妻精品一区二区| 亚洲а∨天堂久久精品| 九九热免费在线播放视频| 国产乱子伦农村xxxx| 国产一级片内射在线视频| 国产精品视频免费一区二区三区 | 91午夜福利在线观看精品| 国产精品国产三级国快看| 实拍女处破www免费看| 亚洲熟妇激情视频99| 成人资源网亚洲精品在线| 免费看欧美全黄成人片| 国产91小视频在线观看| 欧美日韩精品综合在线一区| 91久久精品亚洲一区二区三区| 乱60一70归性欧老妇| 99久久免费只有精品国产| 久久爱在线视频在线观看| 国产免费一区二区三区在线观看 | 亚洲一区二区精品动漫| 色狠狠色噜噜AV一区| 国产人妻无码一区二区三区18| 最新亚洲av日韩av二区| 日本一区二区三区免费播放视频站| 中文字幕精品无码一区二区| 亚洲日本欧洲二区精品| 亚洲免费成人av一区| 亚欧美国产综合| 天堂网亚洲综合在线| 国产明星精品无码AV换脸 | 国产精品午夜无码AV天美传媒| 宅男噜噜噜66在线观看| 亚洲爆乳少妇无码激情|