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全部话题 - 话题: embryos
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az
发帖数: 16686
1
来自主题: NextGeneration版 - She was implanted with the wrong embryo
前两天MSNBC today采访了这对夫妇,当时就注意了这个弄错了孩子的故事本身,今天
搜了一下,这老美太牛了,太佩服了,这么危险,非要生5个孩子啊,第二个孩子30周
出生,接下来三次流产,花了十年怀了第三个孩子,最后第三个孩子32周出生,貌似都
是蛮严重有生病危险的妊娠medical complication
啊,还敢生,第四个结果人工种错了,怀了别人的孩子,生了,还回去了,真是不服不
行啊
http://today.msnbc.msn.com/id/32950836/ns/today-today_health/
It is supposed to the happiest news a couple can get, especially a couple
who have difficulty conceiving and carrying babies. The in vitro
fertilization procedure had been a success: Carolyn Savage was pregnant.
And then came the horrible ... 阅读全帖
G****a
发帖数: 10208
2
来自主题: Missouri版 - zz Sequencing IVF Embryos
A child has been born in the US after physicians and scientists used next-
generation sequencing to select an embryo for in vitro fertilization.
This birth marks the first time that sequencing has been used to screen
embryos for IVF, a process that generally sees only around 30 percent of the
embryos that are selected actually successfully implant, likely due to
chromosomal or genetic defects.
Although other genetic tests screening methods have already been introduced
to identify candidate embry... 阅读全帖
h*********e
发帖数: 247
3
来自主题: NextGeneration版 - 孕7周B超 看不到embryo。求Bless
今天去做阴超,医生说只看到yolksac 没看到embryo。最后一次例假是5.27,现在应
该是7周了,平时的离家都是很准的,30天周期。
医生说约下周一再看B超。
其实我怀孕以来除了嗜睡,胸胀疼,尿频,易累,这一周开始早上刷牙会恶心,其他没
有如恶心等症状。
也没有腹疼,和bleeding。
就上周有几天发现白带稍微带有一点深色,真的很浅。现在没有了。
大家说7周看不到胚胎正常吗?下周一需要再看B超吗?担心频繁阴超会导致流产。下周
二见OB。 其实觉得今天的B超师什么都没告诉我,就说看不到embryo。让我去抽了血。
我因为紧张害怕,忘了问更多的信息了,大家给出出主意我应该打电话回去问具体结果
吗?我是否明天要再去抽血看HCG是否翻倍?
谢谢。一天都很紧张,真不知道该怎么办。
h*********e
发帖数: 247
4
来自主题: NextGeneration版 - 孕7周B超 看不到embryo。求Bless
那个B超特别坏,
一上去看不到embryo 就不看了,什么都没跟我说,就说看不到embryo,后来要伸头过
去看,他说yolksac在那里。然后就去找OB了,她从OB室出来,就跟我说,你去验血,
可能现在太早了,看不到,叫我去约下周一在B超。
我当时可能也是闷了,啥都没问。
不知道明天是否可以去找他们问问。
j***r
发帖数: 741
5
我10月4日最后一次月经开始。 我的周期长。也不太准时。9月时割了子宫里的息肉。
10月底,11月初作过几次功课。11月中旬用wondo查怀孕。显示没中。 11月26日用
clearblue,first response和另一个牌子的测。clearblue有很浅的第二根线。first
response 和另一个牌子的几乎看不出来第二根线。11月29日用clearblue, first
response再测。first reponse 测怀孕的那条线比control的线深。clearblue虽然策怀
孕的那条线颜色比上次有所加深,但依然没有control那条线深。我也有腰酸,胸涨的
反应。却不像怀老大一样有恶心,呕吐。到此,我觉得我怀孕了,可hcg水平也许不够
高,所以之前测的颜色一直较淡。今天看了医生。要说也8周了,医生说没有找到
embryo.要监测hcg.今天抽了血。结果明天才出来。然后周5再抽血。看hcg是否翻番。
我觉得,我hcg水平可能不会太高。离我最近一次做功课,也近一个月了。不可能说怀
孕时间太短,找不到embryo. 我这样是不是极大可能宫外孕,或是根本没怀孕?
我一直... 阅读全帖
y******l
发帖数: 2
6
来自主题: Blessing版 - 真心求祝福Frozen embryo Transfer
星期四进行了Frozen Embryo Transfer, 除了当天体温升高之外,到现在没有任何反应
,非常不安!第一次Fresh Embryo Transfer在六周左右停止了心跳。很不安,很无助
,无能做任何努力,只能等下周抽血才知道结果!真的希望能成果,无数的injection
和接近两年的treatment已经身心疲累!
y******l
发帖数: 2
7
来自主题: Blessing版 - 真心求祝福Frozen embryo Transfer
星期四进行了Frozen Embryo Transfer, 除了当天体温升高之外,到现在没有任何反应
,非常不安!第一次Fresh Embryo Transfer在六周左右停止了心跳。很不安,很无助
,无能做任何努力,只能等下周抽血才知道结果!真的希望能成果,无数的injection
和接近两年的treatment已经身心疲累!
s*********8
发帖数: 286
8
来自主题: Blessing版 - 真心求祝福Frozen embryo Transfer
bless

星期四进行了Frozen Embryo Transfer, 除了当天体温升高之外,到现在没有任何反应
,非常不安!第一次Fresh Embryo Transfer在六周左右停止了心跳。很不安,很无助
,无能做任何努力,只能等下周抽血才知道结果!真的希望能成果,无数的injection
和接近两年的treatment已经身心疲累!
m**a
发帖数: 1840
9
来自主题: NextGeneration版 - She was implanted with the wrong embryo
嗯, 听无私的.
别人的embryo没有complication吗?
B****o
发帖数: 8307
10
来自主题: NextGeneration版 - 孕7周B超 看不到embryo。求Bless
Bless

今天去做阴超,医生说只看到yolksac 没看到embryo。最后一次例假是5.27,现在应该
是7周了,平时的离家都是很准的,30天周期。医生说约下周一再看B超。其实我怀孕以
来........
★ Sent from iPhone App: iReader Mitbbs Lite 7.20
w*********s
发帖数: 1140
11
来自主题: NextGeneration版 - 孕7周B超 看不到embryo。求Bless
bless,别太紧张,我第一次见ob是6周4天,当时ob就提醒可能看不到embryo,如果看
不到就要过两周再约,不过运气不错,当天就看到那颗小花生豆了。我还特意问了ob,
做b超会不会对宝宝不好,我的ob很坚决地说没有事,而且每次都很快,不超过3分钟,
不会伤害宝宝的。
k*******g
发帖数: 40
12
来自主题: NextGeneration版 - 孕7周B超 看不到embryo。求Bless
我和楼主一样的情况。我最后一次例假是5月17日,不过我例假一直不准,有34天,也
有42天的。所以不知道这是第几周。今天做的B超也是说只看到yolksac 没看到embryo
。又约了下周五的B超。很担心,可是也没别的办法。希望楼主和我都能顺利,宝宝健
康成长。
p*********l
发帖数: 351
13
来自主题: pets版 - 蛋里孵出embryo了(Update7/30)
昨晚夜深人静时我又看了一次蛋蛋,里面竟然血管密集,象蜘蛛网一样了,只一天就增
加了这么多!在网的中央有一个绿豆大小的“血块”,仔细一看竟然在啪啪啪地跳动,
原来是胚胎的心脏,我数了一下,每分钟大约120次。
下面贴一张candling照片,是这么拍的,我在鞋盒子上挖一个蛋大小的洞,在盒子里点
一个灯泡,然后放将蛋放在洞中,站着往下拍。不太清楚,不过还是能看到里面的血管
,没有embryo的蛋是透明的。
今天我又去了一次Petsmart,向他们要鹦鹉的inventory,打算猜测鹦鹉父母的种类,
要等几天他们才能给我,不过他们给我一个惊喜:又有一个新蛋。这个蛋与前面两个很
像,只是短了一截,重量也轻了一点,这个是12.4克,前面两个是13.2和12.8克,应该
是一母所生,鹦鹉妈的营养用尽,所以蛋小了。
b*******0
发帖数: 53
14
想作Colony formation assay,请版上高人推荐哪儿可以买到primary rat embryo
fibroblast (REF) cells?
Thanks a lot!
J*R
发帖数: 187
15
来自主题: Biology版 - 请教关于mouse embryo culture
请教一下mouse embryo tissue culture需要用什么样的装置,大概要多少钱呢?买老
鼠的话平均1只大概要多少钱呢?谢谢~~
p********o
发帖数: 213
16
来自主题: _IVF版 - transfer 2 embryo
都是B级,只有两个day-3 embryo, no backup,7/4transfer了,求祝福,祝大家都好孕!
x*******y
发帖数: 216
17
来自主题: _IVF版 - transfer 2 embryo
上个星期一6月29号我transfer了也只有两个day-3 embryo, no backup,祝咱们大家都
好运!加油,只要还就希望就得努力!
r*****l
发帖数: 354
18
Volume 91, Issue 5, Pages 1717-1720 (May 2009)FERTILITY AND STERILITY (The
official journal of American Society for Reproductive Medicine)
Result(s)
Of the 274 patients who met our inclusion criteria, 153 underwent a D3ET and
121 underwent a D5ET. The D5ET group had a significantly lower mean age and
number of embryos transferred and a higher implantation rate (56% vs. 42%)
than the D3ET group. Patients who were 35–40 years old had a significantly
higher live-birth rate (68% vs. 40%). Although n
W******e
发帖数: 745
19
我理解是说,<35岁的如果做Day 5 transfer,最好只放一个embryo,放两个很容易整
出双胞胎。
g**********o
发帖数: 107
20
我上个星期做的day 3 transfer. 一堆受精卵里最好的一颗也只有7个细胞,其次就是5
个细胞。。。医生说我卵子质量不好。。。长得太慢,应该要长到8个细胞的。
做完了以后这几天肚子胀痛,再想到医生说的,觉得郁闷啊。。。不知道做过的jms放
的embryo有几个细胞?
a*w
发帖数: 123
21
明天就要day-3 transfer 了,8个eggs fertilized. 已经是第二次的IVF了,上次只
transfer 了一个.这次我想要transfer 3 个,可老公觉得2 个好些。看看明天的
embryos grading 吧。
姐妹们都是transfer 几个呢?
c***i
发帖数: 411
22
Ask your doctor.
Guess most will be natural cycle plus observation. If you don't ovulate
naturally in the cycle, then you might have some medicine to stimulate (
shall not be high). After ovulation, then fronzen embryo will be transfered.
Heterescopy might be a routine check before transfer and letting doc know
your body better.
b*******n
发帖数: 473
23
来自主题: UnitedKingdom版 - zz 英國三年來秘密培育人獸雜交胚胎
comment: Sounds very disgusting. But so far the embryos are only allowed to survive for 14 days before
being destroyed. So it is not evil at all.
【英国被曝秘密培育人兽杂交胚胎引发恐慌】近日,英国《每日邮报》报道称,英国多
家实验室在过去3年中一直秘密进行人兽杂交胚胎的实验,并且已经制造了150多个同时
包含人类和动物基因的杂交胚胎,在政界和学界引起强烈反响,也引发部分民众恐慌。
[视频]http://t.cn/aY05Hg
@WEI1 TIAN1 XIA4
----
http://www.dailymail.co.uk/sciencetech/article-2017818/Embryos-
humans-produced-secretively-past-years.html
150 human animal hybrids grown in UK labs: Embryos have been produced secretively ... 阅读全帖
s******y
发帖数: 28562
24
美国联邦巡回上诉法庭昨天拒绝一些组织要求停止干细胞研究资金的诉求。
美国政府在布什时代对胚胎干细胞的研究限制甚严,不允许联邦资金用于
新的胚胎干细胞的研究。奥巴马上台后放松了此限制。有些组织认为这个
会导致摧毁胚胎的事情发生(也就是堕胎),所以对此进行了诉讼。
此诉求被下层法院驳回之后,上诉后又被上诉庭驳回。但是初步估计对此的
法律纠纷绝不会就此而止。
http://www.washingtonpost.com/politics/appeals-court-panel-says
Appeals court panel says federally funded embryonic stem cell research can
continue
By Associated Press, Published: August 24
WASHINGTON — A federal appeals court on Friday refused to order the Obama
administration to stop funding embryonic stem cell researc... 阅读全帖
H********g
发帖数: 43926
25
These natural barriers can be overcome in a laboratory, at least at first.
Such attempts typically result in a hybrid embryo which dies after a few
cell divisions.
For example, the egg's protective covering can be stripped off, allowing the
sperm of the other species access to the egg. Sperm can also be injected
directly into the egg. When this is done, fertilization occurs. The
resulting hybrid embryo is not viable, however. It typically goes through
one cell division, resulting in a two-cell e... 阅读全帖

发帖数: 1
26
来自主题: Faculty版 - Jan's lab : 这里有弟子么?

Download pdf published by SfN (Chapter from 'The History of Neuroscience in
Autobiography, Volume 8' edited by Larry R. Squire)
Yuh-Nung Jan's CV
Lily Jan's CV
Yuh-Nung Jan and Lily Jan
Birth
Family History and Growing Up
National Taiwan University
The Hiking Trip to Shitou in the Spring of 1967
Graduate School Application
Graduate Study at Caltech (1968锟974)
Seymour Benzer Lab (1974锟977)
Steve Kuffler锟絪 Lab at H... 阅读全帖
c*********r
发帖数: 1312
27
来自主题: Biology版 - 蓝色小蝙蝠发包子
多谢啦!Protocol奉上。
我们是用小鼠胚胎的软骨和骨头染色的protocol。染软骨的话只用Alcian Blue即可。
最后胚胎用BABB处理就会变得透明。BABB危险,而且会腐蚀显微镜,使用时要小心。很
多动物的胚胎都可以用类似的方法染骨头(红色)和软骨(蓝色):鼠,龟,蛇,鸡,
鱼,蜥蜴,变色龙,蝙蝠。。。而且都很漂亮!
比如这个人,做了好多不同动物的染色还到处办展览:
http://www.shinsekai-th.com/en/photo.php
Protocol:
1. Skeletal Preparations- Cartilage and Bone staining
1.1 Cartilage staining in mouse embryos from E12.5 - E13.5
Dissect out embryos, rinse in 1 x PBS, and place in ice-cold 95% Ethanol for
1 hour.
Change to fresh 95% ETOH and rock overnight at room temper... 阅读全帖
j*******7
发帖数: 6300
28
看看这个,看来Stephen Jay Gould反对Darwin's theory --
http://www.evolutionnews.org/2007/06/lessons_learned_from_haeck
Lessons Learned from Haeckel and His Drawings: We Shouldn't Always Believe
What the "Leading Experts" Tell Us about Evolution
The late Stephen Jay Gould was one of the most prominent and enthusiastic
cheerleaders of biological evolution during the later decades of the
Twentieth Century.
......
Gould described Haeckel as the "primary enthusiast and popularizer" of
Darwin's theory of evolut... 阅读全帖
n********k
发帖数: 2818
29
What an AMAZING woman! seriously!! I vote her to be a next Nobel laureate
and a first Chinese and it is a girl too....
http://english.cas.cn/accessory/twows4th/twowsaward/201006/t20100627_55793.html
Professor Fanyi Zeng was born in 1968. She received her B.A. in University
of California San Diego, CA, USA in 1991. In 2005, she got her Ph.D in
University of Pennsylvania, PA, USA.
Professor Zeng has led a research team that has made substantial and long-
lasting contributions to the developmental ... 阅读全帖

发帖数: 1
30
CRISPR babies: the Chinese government may have known more than it let on
When scientist He Jiankui announced he’d conducted an experiment that led
to the birth of twin girls with CRISPR-edited genomes in November, the
international scientific community swiftly condemned him. In the uproar that
followed, the Chinese government, He’s university, and the hospital where
the babies were born distanced themselves from the researcher, who claimed
he was the first scientist known to use CRISPR to edit h... 阅读全帖
c*********d
发帖数: 9770
31
双语君 中国日报双语新闻 微信号 Chinadaily_Mobile
功能介绍
China Daily旗下官方账号。每周七天,为你的英语保鲜!
昨天,一则消息震惊了中外学术界。
据多家媒体报道,“世界首例免疫艾滋病的基因编辑婴儿”(the world's first gene
-edited babies immune to HIV)出生了。
报道称,11月26日,来自中国深圳的科学家贺建奎在第二届国际人类基因组编辑峰会(
the Second International Summit on Human Genome Editing)召开前一天宣布,一
对名为露露和娜娜的基因编辑婴儿于11月在中国健康诞生。
这对双胞胎的一个基因经过修改,使她们出生后即能天然抵抗艾滋病。这是世界首例免
疫艾滋病的基因编辑婴儿。
观看贺建奎对基因编辑婴儿实验的介绍↓↓
25日,美联社采访了贺建奎,向他了解实验经过。
对这项实验过程,贺建奎的描述如下:
The gene editing occurred during IVF, or lab dish fertilization.
基因编辑发生在试管受精或实... 阅读全帖
r*s
发帖数: 2555
32
来自主题: Joke版 - 需要多个精子?
Bird eggs are fertilized by more than one sperm, a process called polyspermy
. Penetration by multiple sperm may be unusual in the animal kingdom, but it
is somehow crucial to the development of the bird embryo, a new study finds.
“In humans and mammals, you only need one sperm to penetrate the egg,”
said Nicola Hemmings, an evolutionary biologist at the University of
Sheffield and one of the study’s authors. “If there’s more than one, it
can be lethal and we end up with the embryo dying.”
Dr. H... 阅读全帖
n********k
发帖数: 2818
33
Joke of the day or what?
there is not a most shameless but more shameless!
Results: 33
1.
Viable fertile mice generated from fully pluripotent iPS cells derived from
adult somatic cells.
Zhao XY, Li W, Lv Z, Liu L, Tong M, Hai T, Hao J, Wang X, Wang L, Zeng F,
Zhou Q.
Stem Cell Rev. 2010 Sep;6(3):390-7.PMID: 20549390 [PubMed - in process]
Related citations
2.
Production of mice using iPS cells and tetraploid complementation.
Zhao XY, Lv Z, Li W, Zeng F, Zhou Q.
Nat Protoc. 2010;5(5):963-71. Epu... 阅读全帖
b*****l
发帖数: 8603
34
2007年的,不知道你们说的是不是这个。祝好。
medical ethics more than hundred cases
Sep 24th, 2007, 12:17pm
1. A 25- year old mother refused immunization for her 2-month old son. The
social worker spoke to the mother. (Important for Board examination)
Next step in management: immunization should be given for the benefit of the
child.
2. A 30-year old mother refused surgery for suspected appendicitis for her 6
-year old daughter. The social worker spoke to the mother. (Important for
Board examination)
Next step in ma... 阅读全帖
w*********g
发帖数: 30882
35
机器翻译的,凑合着看。补充一点:我认为男女结婚和生育宝宝之前,应该都测一测智
商,其中一方低于85的,不应该鼓励结婚和要孩子。不符合规定的,应该不给予结婚证
书和准生证。这样基本上大大降低黑人在中国繁衍低智商后代的可能。
====================
中国工程天才宝宝
在亚历克斯误差
4733
用2645点在Tumblr共享
这不是什么新闻,中国将自己打扮成一个新的全球超级大国,是吗?而西方文明的扼流
圈对自己的暴食类似近代马龙白兰度,中国继续购买美国国债和锁定了世界的自然资源
。但是现在,不满足于只是笑,混蛋的迹象,他们通过我们的地缘政治上公路,他们还
开发了一个国家通过遗传工程。
在深圳华大基因,科学家们已经收集DNA样本从2000世界上最聪明的人,在试图确定确
定人类智力的等位基因的全基因组测序。显然他们不远处找到他们,当他们这样做时,
胚胎筛检会让父母来接他们聪明的受精卵和潜在的提高每一代人的智力的五到15点。在
几代人在智力水平上,与中国的竞争会喜欢具有挑战性的莱娜邓纳姆一得到赤裸裸的在
电视大赛。
杰弗里米勒,进化心理学家和纽约大学的老师,是一个2000 bra... 阅读全帖
m***f
发帖数: 1622
36
来自主题: Biology版 - NIBS的高绍荣是怎么tenure的?

扯淡呢,看看高最近两年发表的文章吧
CELL STEM CELL, JBC, STEM CELL, PNAS,都是很不错的
就这样还不能PROMOTION? 在美国都可以tennure了
1. Wu T., Wang H., He J., Kang L., Jiang Y., Liu J., Zhang Y., Kou
Z., Liu L., Zhang X., Gao S. (2011) Reprogramming of trophoblast stem
cells into pluripotent stem cells by Oct4. Stem Cells 2011 Feb 8.
[Epub ahead of print].
2. Kang L., Wu T., Tao Y., Yuan Y., He J., Zhang Y., Luo T., Kou Z.,
Gao S. (2010) Viable mice produced from 3-factor induced pluripotent
stem (iPS) cells through tetrapl... 阅读全帖
b*****n
发帖数: 1841
37
来自主题: Biology版 - James Thomson家的铃声没有响
Losing out on a Nobel Prize
Updated: Mon, Oct 08 2012. 07 07 PM IST
New Delhi: This year’s Nobel Prize for Medicine underlines the slender
margin between winning and losing.
Monday’s announcement of the prize to John Gurdon at Cambridge University
and Shinya Yamanaka of Kyoto University for discovering and showing in
different ways that even matured cells—or adult stem cells as they are
called—that are destined to be skin or nerve or intestinal cells, could be
programmed into an immature state.
... 阅读全帖
l*******i
发帖数: 153
38
来自主题: Biology版 - 笹井芳树自杀了
太可惜了!
话说回来,STAP cell是否真的存在过?我读那两篇文章时,有一点觉得很奇怪,他们
的细胞竟可以形成placenta。要知道,包括inner cell mass在内 mESC是pluripotent
cell, 一般只能形成embryo,而不能形成extra-embryonic tissue(比如placenta)。
小保方究竟是用了什么细胞,具有totipotency,可以同时形成embryo和placenta? 如果
他们用blastocyst之前的embryo(比如2-cell, 4-cell,8-cell, morula,这些细胞
是totipotent),倒是可以同时形成embryo和placenta,但这种实验从genetic
manipulation (将GFP reporter整进所用细胞genome)到generate chimeras,不可能是
一个人可以做的,至少得是几个人参与其中。合作者难道就没有质疑吗?
小保方又是怎样收到启发,从而打破常规,检测STAP cell的totipotency的?完全凭空
造假的话,这样的胆子真是难以想象。
s******c
发帖数: 331
39
因为ethical issues被nature和science拒了,就发到了protein&cell这个饶子和搞的
杂志上了,不管如何,这下子这个open access的杂志算是出名了一把。
我觉得国内还是什么都敢做啊,这种东西是不是ethical真的就是一线之隔,他们号称
用的是因为基因缺陷不viable的embryo的cells,但是大家都知道国内那些小医院去搞
一个viable的embryo是多么容易的事情,再加上crispr的方便容易,在正常embryo上做
gene editing真是没什么特别的难度,除非法律有明确的规定。那篇nature的comment
里还特别提了,国内好几个组在做这个,至于用的是什么样的embryo,估计大家都不知
道。
k******3
发帖数: 41
40
成功性很大,祝MM好孕!!!
说到等级,我有8个发育到blastocyst,曾反复问过医生embryo等级,很奇怪,他说他们不划等级,只有好的embryo才会保存冷冻...这次做frozen cycle,移植前看了解冻的embryos照片,医生说两个embryos都开始hatching了,其中一个hatching out of shell.现在怀上了,希望他/她是好宝!
b********n
发帖数: 38600
41
来自主题: Military版 - 蛇虽然没有脚,但却有两个吊
Scientists think they know why snakes get two penises and people only get
one
http://www.washingtonpost.com/news/speaking-of-science/wp/2014/
Researchers may have figured out why different species develop different
kinds of genitalia. In snakes and reptiles, the genitals grow to mimic leg
buds — producing twin organs. In humans, the genitals grow to mimic a tail
bud — so the penis ends up as a single structure.
In a study published today in Nature, researchers focused on the difference
between s... 阅读全帖
b*****d
发帖数: 61690
42
来自主题: Military版 - NIH的声明是警告美帝学者吧
NIH is deeply concerned about the work just presented at the Second
International Summit on Human Genome Editing in Hong Kong by Dr. He Jiankui,
who described his effort using CRISPR-Cas9 on human embryos to disable the
CCR5 gene. He claims that the two embryos were subsequently implanted, and
infant twins have been born. This work represents a deeply disturbing
willingness by Dr. He and his team to flout international ethical norms. The
project was largely carried out in secret, the medical nec... 阅读全帖
l*********1
发帖数: 2971
43
来自主题: Piebridge版 - 女性最好34岁前生孩子
Egg Quality
Egg quality is often blamed as the cause for IVF failure. Improving egg
quality gives you a better outcome from subsequent IVF cycles and also
contributes to having a healthy pregnancy and baby.
One of the reasons that the focus is more on egg quality than sperm quality
is that the egg contributes all the mitochondria for the embryo.
Mitochondria are tiny organelles in every cell of your body where energy is
produced. All the mitochondria in the embryo come from the egg – none come
f... 阅读全帖
xf
发帖数: 68
44
来自主题: Biology版 - 请教
我有一个朋友,今年暑假要毕业。是IVY动物系的,研究家禽的。
有几篇Poultry Science的文章,
大家看看这样的研究经历和会的技术手段找什么样的博士后又机会。工业界如何呢?
他老板快退休了,也不知道能有多大帮忙。
谢谢
RESEARCH EXPERIENCE
• Designed and performed experiments to investigate the embryonic
development of chicken under various cholesterol-depleted conditions.
• Modified and improved the yolk replacement technique.
• Determined the cholesterol requirement for embryos to develop,
hatch, and grow normally.
• Determined the toxic level of beta-cyclodext... 阅读全帖
G*P
发帖数: 214
45
不过第一段英语写得真差,之前如果完全不知道此事的话,这段话可以让你云里雾里,
而且混淆当事人
http://www.nature.com/news/2011/110608/full/474140a.html
Whistle-blower claims his accusations cost him his job
University denies it retaliated against researcher who questioned supervisor
's data.
Eugenie Samuel Reich
Zebrafish embryos are at the centre of a dispute over research integrity.
Zebrafish embryos are at the centre of a dispute over research integrity.R.
KESSEL/VISUALS UNLIMITED/CORBIS
After months of friction that culminated in his open... 阅读全帖
l*h
发帖数: 4124
46
My suggestion is to cyosection the embryos to test the conditions first. You
will get tens of sections from a single embryo for you to try. If the
antibody works, then move to whole mount. Just remember the time for
fixatives, antibodies and etc. to get into the center of the embryo will be
a lot longer than it is needed for sections.
j*****d
发帖数: 787
47
=====>>>>>>> 为稀释版面灌点水......
NBT 二月份有两份报告显示可以通过 基因打靶 修饰 human 活体细胞,看得我心里痒
痒的。美国funding势必继续大批超这个方向转移,作为在mouse genetic领域的也看到
了威胁。
而且,我觉得我们距离科幻世界的确不远了,如果我们 定点 修饰人类细胞的技术 更
趋成熟,定向制造 更强壮 更聪明 更忠贞 human cell 是非常可能的。
http://www.nature.com/nbt/journal/v29/n2/pdf/nbt.1755.pdf
http://www.nature.com/nbt/journal/v29/n2/pdf/nbt.1775.pdf (这篇还是zhang feng哥的)
随后上个月,分别有三个组发现 TALEN 这项技术竟然在大鼠和小鱼里也得心应手!
Knockout rats generated by embryo microinjection of TALENs - pp695 - 696
Laurent Tesson, Claire Usal, Séverine Ménore... 阅读全帖
l**********1
发帖数: 5204
48
You sure?
Heine, V. M. et al. (2011)
Small-molecule Smoothened agonist prevents glucocorticoid-induced neonatal
cerebellar injury.
Science Transl. Med. 3: 105ra104
Firestone, A. J. and Chen, J. K. (2010)
Controlling destiny through chemistry: Small-molecule regulators of cell
fate.
ACS Chem. Biol. 15: 15-34.
http://chen.stanford.edu/index.php?option=com_content&view=arti
plus
Zebrafish Protocols
Bleaching Zebrafish Embryos
Genomic DNA Isolation for PCR Analysis
Manual and Enzymatic Dechorionat... 阅读全帖
O******e
发帖数: 4845
49
Press Release
2012-10-08
The Nobel Assembly at Karolinska Institutet has today decided to award
The Nobel Prize in Physiology or Medicine 2012
jointly to
John B. Gurdon and Shinya Yamanaka
for the discovery that mature cells can be reprogrammed
to become pluripotent
Summary
The Nobel Prize recognizes two scientists who discovered that mature, specia
lised cells can be reprogrammed to become immature cells capable of developi
ng into all tissues of the body. Their findings have revolutionised our... 阅读全帖
a********h
发帖数: 245
50
来自主题: Biology版 - Brain Activity Map吵起来了
转一个相关的博客:
http://www.michaeleisen.org/blog/?p=1179
Blinded by Big Science: The lesson I learned from ENCODE is that projects
like ENCODE are not a good idea
By Michael Eisen | Published: September 10, 2012
When the draft sequence of the human genome was finished in 2001, the
accomplishment was heralded as marking the dawn of the age of “big biology
”. The high-throughput techniques and automation developed to sequence DNA
on a massive scale would be wielded to generate not just genomes, but
refe... 阅读全帖
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