久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

WORLD> Europe
Xiao Xiao receives torch lit by Dolly: Expert
(Xinhua)
Updated: 2009-08-03 10:42

LONDON: "Xiao Xiao," which means "tiny" in Chinese but represents a big victory for scientists as the world's first cloned mouse from iPS cells, was highly praised by an expert at Britain's Roslin Institute where the first cloned mammal Dolly was born.

"Most research progresses in small steps. Xiao Xiao represents a jump forward," said Bruce Whitelaw, head of the Division of Developmental Biology at the Roslin Institute, and editor-in-chief of the journal Transgenic Research.

Xiao Xiao receives torch lit by Dolly: Expert
"Xiao Xiao," which means "tiny" in Chinese but represents a big victory for scientists as the world's first cloned mouse from iPS cells, was highly praised by an expert at Britain's Roslin Institute where the first cloned mammal Dolly was born. (Photo: Sciencenet.cn) 

This is because Xiao Xiao finally proved that iPS cells, the abbreviation of induced pluripotent stem cells, are truly pluripotent. Stem cells are cells that can differentiate into specialized cell types for organisms to grow or repair themselves. In a developing embryo, stem cells can differentiate into all of the specialized embryonic tissues, therefore the embryonic stem cells are called pluripotent.

Related readings:
Xiao Xiao receives torch lit by Dolly: Expert U.S. stem cell research rules ease some restrictions
Xiao Xiao receives torch lit by Dolly: Expert Asia's biggest stem cell lab under plan
Xiao Xiao receives torch lit by Dolly: Expert Obama opens up stem cell work, science inquiries
Xiao Xiao receives torch lit by Dolly: Expert 1st stem cell study for spinal injury approved

Xiao Xiao receives torch lit by Dolly: Expert Woman gets first stem cell windpipe

In 2007, Japanese and American scientists declared at the same time that they induced skin cells into the status of pluripotent independently, which implicated that an adult cell could be reprogrammed to its "embryonic status" and then develops to a full functional creature.

"iPS cells are truly a revolution," said Whitelaw. Since then scientists have developed many types of cells from iPS cells, including heart cells, blood cells, cornea cells and nerve cells. But though researchers all around the world tried hard, no one had yet reported a full functional mammal from iPS cells.

In that sense, Xiao Xiao declared the victory of the revolution as two Chinese groups reported "mice made from induced stem cells" online in Nature and in Cell Stem Cell respectively on July 23.

Whitelaw said, "The world must now believe that iPS cells can be truly pluripotent."

The Chinese group of Qi Zhou and Fanyi Zeng reported 27 live births including Xiao Xiao in one of the two papers. Though some died after just two days and some displayed physical abnormalities, a number of mice have passed one of the most fundamental tests of health: all 12 mice that were mated produced offspring, and the offspring showed no abnormalities. The team said it now has hundreds of second-generation and more than 100 third-generation mice.

"The true test of pluripotency is the ability to derive an entire fully functional animal from the pluripotent cell. This animal must develop and grow then age. It must be able to reproduce and this is exactly what Qi Zhou and Fanyi Zeng have shown in their paper," Whitelaw extended his special appreciation on that.

Though Dolly was created by the cloning technology of nuclear transfer, while Xiao Xiao was by introducing iPS cells into an embryo, the resulting animals in both cases are clones,  Whitelaw said.

"Yes, Xiao Xiao received the torch lit by Dolly," he commented while reviewing the history of clone.

About practical implication of Xiao Xiao, Whitelaw said it showed us the prospect to translate iPS technology into other animal species such as livestock.

Whitelaw highly praised the work of Chinese scientists.

"The two Chinese groups in achieving this success have shown persistence and dedication to the task. They have achieved what other groups all around the world have not managed yet. They deserve the credit for this achievement," Whitelaw said.

久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

    色又黄又爽网站www久久| 在线播放亚洲一区| 一区二区日韩av| 欧美日韩五月天| 麻豆国产精品一区二区三区 | 99精品在线免费| 亚洲综合成人在线视频| 制服.丝袜.亚洲.另类.中文| 久久激情五月婷婷| 中文字幕乱码一区二区免费| 色八戒一区二区三区| 青青草国产精品97视觉盛宴| 2020国产精品久久精品美国| 99久久婷婷国产精品综合| 亚洲妇女屁股眼交7| 精品久久久久久亚洲综合网| av在线一区二区| 偷拍一区二区三区| 久久色在线观看| 99re视频精品| 日本不卡一区二区| 国产农村妇女毛片精品久久麻豆| 欧美在线免费观看亚洲| 麻豆精品视频在线| 亚洲欧美日韩国产中文在线| 日韩一区二区三区在线| 成人h精品动漫一区二区三区| 午夜影院在线观看欧美| 国产女人18水真多18精品一级做| 欧美三级欧美一级| 国产91精品一区二区| 午夜影视日本亚洲欧洲精品| 国产色爱av资源综合区| 欧美日韩一区二区在线观看| 国产精品99久久久久| 亚洲在线视频网站| 久久综合九色综合97_久久久| 在线视频一区二区三| 国内不卡的二区三区中文字幕| 亚洲精品视频免费观看| 精品电影一区二区| 精品视频一区二区三区免费| 国产99精品在线观看| 日本中文在线一区| 亚洲老司机在线| www国产亚洲精品久久麻豆| 在线影视一区二区三区| 国产精品538一区二区在线| 亚洲国产日韩一级| 国产精品网站导航| 日韩午夜在线影院| 在线视频你懂得一区二区三区| 国产精品一二一区| 日韩av高清在线观看| 亚洲免费观看高清| 国产欧美一区二区三区在线老狼| 欧美一区二区三区婷婷月色| 色综合久久久久综合体桃花网| 国产精品一区二区无线| 日韩和的一区二区| 亚洲靠逼com| 欧美国产欧美综合| 精品国产乱子伦一区| 欧美日韩成人综合天天影院 | 亚洲欧洲成人自拍| 久久午夜色播影院免费高清| 337p亚洲精品色噜噜噜| 在线视频国内自拍亚洲视频| 99久久久国产精品| 春色校园综合激情亚洲| 国产资源精品在线观看| 蜜臀av在线播放一区二区三区| 亚洲韩国精品一区| 综合久久久久久| 中文天堂在线一区| 久久综合九色综合欧美亚洲| 日韩欧美另类在线| 欧美一区二区在线看| 欧美日韩电影在线| 欧美色图在线观看| 欧美午夜视频网站| 色成年激情久久综合| 94-欧美-setu| 91在线看国产| 91原创在线视频| www.日韩大片| av电影在线观看一区| 成人免费视频播放| 成人免费毛片片v| 成人免费三级在线| 不卡一区二区三区四区| 成人夜色视频网站在线观看| 国产**成人网毛片九色 | 亚洲手机成人高清视频| 国产精品乱码人人做人人爱 | 亚洲伦在线观看| 亚洲国产精品99久久久久久久久| 久久久影视传媒| 337p粉嫩大胆噜噜噜噜噜91av| 69堂国产成人免费视频| 欧美日韩国产大片| 欧美日韩高清影院| 欧美高清性hdvideosex| 精品视频全国免费看| 欧美视频在线一区二区三区 | 亚洲国产高清aⅴ视频| 欧美国产日韩亚洲一区| 国产精品国产三级国产普通话99| 国产精品免费丝袜| 亚洲欧洲日韩女同| 亚洲视频一二三区| 一区二区三区日本| 亚洲电影一区二区三区| 午夜久久久久久| 日韩一区精品字幕| 奇米在线7777在线精品| 精品亚洲国内自在自线福利| 国产一区二区三区黄视频| 国产成人亚洲精品青草天美| heyzo一本久久综合| 91丨porny丨国产入口| 欧亚一区二区三区| 正在播放一区二区| 精品少妇一区二区三区在线视频| www激情久久| 国产精品网友自拍| 亚洲人成7777| 午夜电影网一区| 日本成人超碰在线观看| 国产精品资源网| 成人精品国产一区二区4080 | 色一区在线观看| 精品视频一区二区三区免费| 日韩免费看的电影| 国产欧美日韩中文久久| 亚洲美女在线国产| 日日欢夜夜爽一区| 国产老妇另类xxxxx| 97久久超碰国产精品| 欧美疯狂性受xxxxx喷水图片| 久久女同精品一区二区| 亚洲视频免费在线| 奇米亚洲午夜久久精品| 成人丝袜高跟foot| 欧美日韩国产色站一区二区三区| 26uuu亚洲综合色| 亚洲欧洲一区二区三区| 丝袜亚洲另类欧美| 国产91丝袜在线18| 在线观看亚洲成人| 精品国产成人在线影院| 亚洲天堂免费在线观看视频| 青青草国产成人av片免费| 国产91在线观看丝袜| 欧美午夜精品久久久久久超碰| 欧美α欧美αv大片| 亚洲欧美另类久久久精品2019| 秋霞电影一区二区| 97se亚洲国产综合自在线不卡| 制服丝袜中文字幕一区| 国产精品国产三级国产aⅴ原创| 手机精品视频在线观看| 成人av手机在线观看| 欧美一二区视频| 亚洲欧美精品午睡沙发| 精品一区二区精品| 欧美中文字幕一区| 国产亚洲欧美在线| 婷婷综合五月天| 波多野结衣在线一区| 日韩一级完整毛片| 亚洲品质自拍视频网站| 国产乱码精品一区二区三区av| 欧美日韩综合色| 国产精品女人毛片| 久久99在线观看| 欧美日韩一区二区在线观看视频 | 日韩精品最新网址| 亚洲制服丝袜在线| 成人丝袜18视频在线观看| 日韩欧美一区电影| 一区二区激情视频| 处破女av一区二区| 欧美tk丨vk视频| 亚洲第一二三四区| 91玉足脚交白嫩脚丫在线播放| 久久色成人在线| 日韩国产一二三区| 91行情网站电视在线观看高清版| 中文字幕+乱码+中文字幕一区| 蜜乳av一区二区三区| 91福利精品第一导航| 国产精品久久久久影院色老大| 久久99精品国产麻豆不卡| 精品视频一区二区三区免费| 日韩理论片一区二区| 国产精品一二二区| 欧美成人性战久久| 婷婷开心久久网| 欧美无人高清视频在线观看|