j****1 发帖数: 15497 | 1 哈哈~ 太绝了,我昨天的考试第一张竟然就是这张片子,我这个还是在网上自己找题
做得时候发现的,我们学校系统里面的testis的片子我都没有看呢~结果!
哈哈~以后我就边复习边往咱班上贴题!
两男生都答对了,我以为烤肉是学化学的,高手姐姐听说是男的,不知道学什么专业的
。双黄奉上 |
|
g***j 发帖数: 40861 | 2 I made mouse testis slides before |
|
|
g****e 发帖数: 137 | 4 just cut as other tissues. You will never have all tubules same shape. Your
slide will always be comprised of various shapes. |
|
|
|
|
v***a 发帖数: 1242 | 8 尽量沿最大的那个横切面切,这样出来的seminiferous tubules就会都是圆圆的,说明
histology正常。
所以觉得histology应该是正常的吧,应该不需要做的太详细了。这样的话是不是就大
概挑几个切片看看就行? |
|
|
D*a 发帖数: 6830 | 10 就是说前面后面的那些片子扔了就行?只要最大的那块?
你说的貌似是沿短轴切吧。。。 |
|
v***a 发帖数: 1242 | 11 只要沿与短轴平行/与长轴垂直方向切都行。最大最小无所谓,推荐最大的原因是横切
得到tubules的数量会最多,而且好切。 |
|
|
|
|
D*a 发帖数: 6830 | 15 PS 打算注射到testis里面,拿后代的KO。不知道可行否? |
|
d*p 发帖数: 534 | 16 some antigens only express at certain stage during development, or specific
tissue where immune cells cannot reach. It must be some embryonic antigen,
testis antigen etc. expressed in IPS. |
|
j*b 发帖数: 341 | 17 This argument is not a big deal. even certain type of cancer can trigger the
immunoreaction by expressing some testis-specific antigens.iPS is not
equivalent to ES cells, and different lines of iPS have their unique
differentiation potentials.
just don't understand why nature published so many so-so paper on ips cells.
|
|
b******2 发帖数: 6 | 18 U can contact me if possible. I have some experiments about this type
isoforms thing in testis and actually, I am quite interested in this issue
though I've changed my direction.
L****[email protected] |
|
c**********4 发帖数: 70 | 19 I know someone is using it. It seems they have problem. Mainly because it
expresses in testis and ovary. |
|
s**********r 发帖数: 13 | 20 I want to konckout a transcription fact in testis,the problem is that Cre is
leaking. |
|
x******a 发帖数: 143 | 21 Drosophila, 有几个candidate genes,想预测3UTR 上的miRNA targets。试了几个
program(miranda,pita)但是结果都很大不同,而且用script run出来的和网页上现
成的也不一样。自己跑script 给出来的结果很多,不知道什么是合适的cut off。我主
要想比较sister species的difference,所以不想强调conservation。
不知道有没有大侠有没有经验,指点我一下,我没有任何mirna的经验,只是在狂读
paper。
还有就是想看gonad tissues的miRNA profile,好结合起来predict这几个基因是ovary
/testis-specific express) 上可能的functional targets。没有找到现成的文章,找
到了一些sra上的illumina data,modencode的还有没有发表文章吧。我只是相看看表
达水平,试了miRExpress,最后一步怎么都不没法让它work,其它的程序好像看起来很
麻烦,主要目的都是novel miRNA discove... 阅读全帖 |
|
Q**********r 发帖数: 214 | 22 J Biomol Screen. 2010 Aug;15(7):830-9. Epub 2010 Jul 16.
Knockdown of cancer testis antigens modulates neural stem cell marker
expression in glioblastoma tumor stem cells.
please send to a*************[email protected]
不胜感激! |
|
d*p 发帖数: 534 | 23 正好我做 Immunotherapy,就来说说吧,大牛不是。
首先,免疫系统需要区分Self and Non-self,也就是自身的各种物质不会激活免疫系
统,这里面涉及到在胸腺里面清除掉会攻击自身的免疫细胞,以及在血液和淋巴系统里
抑制能够攻击自身的免疫细胞,涉及许多机制,不详细讲。而肿瘤从根本上说属于Self
,因此人体对肿瘤的免疫反应,就具有先天性的弱势。
第二, 免疫系统有自动回调的默认机制,当免疫反应达到一定得强度,并持续一段时
间以后,免疫系统会自动回调,通过多种机制来抑制免疫反应,原因就是长期的高强度
免疫反应必然导致对自身组织器官的损伤,这是自身保护所必需的。
第三,肿瘤在形成过程中,成功逃避免疫系统的监控,并且充分利用免疫系统的各种回
调机制,形成一个强烈的抑制性环境,抑制针对肿瘤的免疫反应。因此在肿瘤病人体内
,肿瘤特异性的免疫反应基本是被抑制住了的,尤其是后期肿瘤,几乎所有在肿瘤中的
免疫细胞都是失去功能的。
那么免疫治疗的希望在那里呢?
首先,虽然由于免疫系统为了防止自我攻击,清除了大部分针对自身抗原的免疫细胞,
但是并没有完全清除,仍然存在一部分反应相对较弱的... 阅读全帖 |
|
C**S 发帖数: 522 | 24 129小鼠KO后正常,backcross到C57后,雄性不育。两种老鼠之间有什么不同导致这一
现象,有什么可能的解释吗,可以做点什么?这个基因是在testis高表达的。 |
|
m***o 发帖数: 272 | 25 只在testi表达,分离sperm,在sperm里高表达,探测不到蛋白。功能不明确,可能是
为了抑制全长form的表达。全长form可能跟Ca信号转导有关。请推荐杂志,只求把结果
发出去,不冤枉老板的钱和我的时间。谢谢! |
|
p*****c 发帖数: 20445 | 26 Michael Rape, Ph.D.
University of California, Berkeley
Michael Rape’s love of science began in the basement of his parent’s house
, where he used to conduct rudimentary biochemistry experiments. Today, he
uses far more sophisticated methods to understand a complex process critical
to nearly all organisms: ubiquitylation. The term describes the attachment
of a regulatory protein called ubiquitin—named for its ubiquity—onto other
proteins. Ubiquitin tags communicate a wealth of information to the ... 阅读全帖 |
|
X*******8 发帖数: 3895 | 27 :我找到了这篇文章,还有全文PDF下载(http://www.nature.com/nbt/journal/v25/n9/pdf/nbt0907-:981.pdf)。:可能是我水平不行,找遍了文章,也没发现您所说的Marshall“先入为主”等内容。
前面提到过一段,下面一段是I.E.回复中的引用。你还是去看看她的回复吧。我文中有
出处的。正反都听听
“In discussing my results, Chassy et al.
state “Previous reports in the literature have
shown no effects of [Roundup Ready] RR
soy on birth weights or pup mortality; they
have also not shown any effects of RR soy on
the testis or in the livers of male rats fed RR
soy”2,5,6. Later, they concluded that the likely
“explanati... 阅读全帖 |
|
X*******8 发帖数: 3895 | 28 :我找到了这篇文章,还有全文PDF下载(http://www.nature.com/nbt/journal/v25/n9/pdf/nbt0907-:981.pdf)。:可能是我水平不行,找遍了文章,也没发现您所说的Marshall“先入为主”等内容。
前面提到过一段,下面一段是I.E.回复中的引用。你还是去看看她的回复吧。我文中有
出处的。正反都听听
“In discussing my results, Chassy et al.
state “Previous reports in the literature have
shown no effects of [Roundup Ready] RR
soy on birth weights or pup mortality; they
have also not shown any effects of RR soy on
the testis or in the livers of male rats fed RR
soy”2,5,6. Later, they concluded that the likely
“explanati... 阅读全帖 |
|
m******g 发帖数: 467 | 29 自己吐槽一下,虽然对于看过文献的研究系统/漂亮的图什么的记得比较清楚
但是作者什么的老是不太记得
有时候看到有的人可以一堆一堆地数出来,感觉好厉害啊!
觉得这期science比较有趣,虽然没有那种看得超感动的文章,但是还是有不少很值得
一看的paper的。
Science 13.11.22
推荐:
1. Organization of the Mitotic Chromosome
用5C和Hi-C, 发现分裂中期结构是与位点无关的均质,并用polymer模拟
“A simple, robust model explains higher-order organization of mammalian
chromosomes.”
(最近这类文章真多,好像周周都有?感觉个人不是那么感兴趣了~~~)
2. Two Y Genes Can Replace the Entire Y Chromosome for Assisted Reproduction
in the Mouse
testis determinant factor Sry
spermatogonial proliferatio... 阅读全帖 |
|
m******g 发帖数: 467 | 30 自己吐槽一下,虽然对于看过文献的研究系统/漂亮的图什么的记得比较清楚
但是作者什么的老是不太记得
有时候看到有的人可以一堆一堆地数出来,感觉好厉害啊!
觉得这期science比较有趣,虽然没有那种看得超感动的文章,但是还是有不少很值得
一看的paper的。
Science 13.11.22
推荐:
1. Organization of the Mitotic Chromosome
用5C和Hi-C, 发现分裂中期结构是与位点无关的均质,并用polymer模拟
“A simple, robust model explains higher-order organization of mammalian
chromosomes.”
(最近这类文章真多,好像周周都有?感觉个人不是那么感兴趣了~~~)
2. Two Y Genes Can Replace the Entire Y Chromosome for Assisted Reproduction
in the Mouse
testis determinant factor Sry
spermatogonial proliferatio... 阅读全帖 |
|
|
发帖数: 1 | 32 Little mice ..
按头,拉尾巴,卡起一声, 活生生的, 俺手下,100+只是保守数字。
我当时是活取testis....;)
是不是有些太残忍了? |
|
b*****n 发帖数: 34 | 33 这两个文章结果不错,但是病人样本太小,病人可能都是精挑细选,更倾向对免疫疗法
有反应的(这个是根据以前一些一期试验的经验,没有依据)。个人对cancer vaccine
持怀疑态度,主要是因为:
1. 这个mutational load theory本身就很有瑕疵,如果看看几篇N Eng J Med的文章,
有疗效和没有疗效的患者mutational burden本身重叠部分就很大,加上现在很多被认
为是low mutational burden的肿瘤类型,对checkpoint反应率也没差太多。所以
antigen response 到了一定程度后,就是看microenvironment的抑制情况了。如果只
是作为maintenance therapy,那就回到20年前了,很难和新一代的制剂抗衡。
2. 即便是早期的cancer testis antigen vaccine, long peptide vaccine 也可以产
生类似于这个文章里的T 细胞反应,不过疗效在established tumour里微乎其微。这两
个文章也是看的复发率,大量的suppressive fact... 阅读全帖 |
|
d****y 发帖数: 2180 | 34 大家讨论一下是那个答案合适
1. A 22-year-old man has a 36 hour history of pain and swelling of his
left testis. One week ago, he had mild dysuria and a urethral discharge.
Gram's stain of material from the urethra shows numerous neutrophils but
no organisms. The most likely cause of the patient's symptom is infection
with which of the following?
A) Chlamydia trachomatis
B) Cytomegalovirus
C) Eschenchia coil
D) Herpesvirus
E) Mumps virus
F) Neisseria gonorrhoeae
G) Trichomonas vaginalis |
|
|
e****0 发帖数: 678 | 36 • Exaggerated deep tendon reflexes can be seen in lock in syndrome.
• Non bleeding varices are managed with nonselective beta-
adrenergic antagonists, such as propranolol.
• Sclerotherapy, endoscopic band ligation, and surgery are
indicated after a patient has a first episode of variceal bleeding.
• TIPS is a last resort in variceal bleeding unresponsive to
medical and endoscopic intervention.
• Ischemic colitis
CT—thickening of eth bowel ... 阅读全帖 |
|
J*********4 发帖数: 1274 | 37 Torsion of testis. Emergency operation.
Just throw a brick, hoping for Jade later |
|
h***o 发帖数: 539 | 38 BBS水木清华站∶精华区
发信人: FangQ (骆驼·飞鸟·驴), 信区: MathTools
标 题: Mathematica函数及使用方法——流程控制
发信站: BBS 水木清华站 (Sat Dec 12 11:42:31 1998)
Mathematica函数及使用方法——流程控制
—————————————————————————————————————
十五、流程控制
分支
If[condition, t, f] 如果condition为True,执行t段,否则f段
If[condition, t, f, u] 同上,即非True又非False,则执行u段
Which[test1,block1,test2,block2..] 执行第一为True的testi对应的blocki
Switch[expr,form1,block1,form2,block2..]
执行第一个expr所匹配的 |
|
r******u 发帖数: 27 | 39 正好看到一个博后职位,貌似和lz maternal and child health 背景有点关系?粘贴
如下:
Postdoctoral Fellowship Opportunities for Epidemiologists
Hormonal and Reproductive Epidemiology Branch
Division of Cancer Epidemiology and Genetics
National Cancer Institute
The Hormonal and Reproductive Epidemiology Branch (HREB, http://dceg.cancer.gov/hreb,
Chief,Dr. Louise Brinton), a component of NCI’s intramural Division of
Cancer Epidemiology and Genetics (DCEG), is looking to recruit post-doctoral
fellowswith training in epidemiolo... 阅读全帖 |
|
t******u 发帖数: 187 | 40 还是来IVF吧,也许会省很多时间呢。
About 5 years ago, the alive sperm can be seen, although rarely, in my
husband's semen analysis. but last year, there is no alive sperm at all. So
either the alive sperms they detected 5 years ago are caused by
contaminations under the microscope, or the sperms-producing ability got
worse during these years.
Last year, my husband did the testis biopsy and found no sperm produced.
Your case is much better than ours. So you can try IVF, and at the same time
, try sth to improve |
|
t******u 发帖数: 187 | 41 谢谢MM。我们的主要问题是老公没有sperm. 做过testis biopsy, 也没能找到sperm.
We are using donor sperms. 这也是我们做IUI的一项主要花费。
follicles |
|
t******u 发帖数: 187 | 42 even there is a mistake for the second time, the result from the first time
is not good.
Just take one more test.
But the number does not look good at all.
In my case, my hubby took the test a few times, and every time, there are
either few or zero.
So you need to let him see the specialist (RE). They will do some tests to
figure out what is wrong: hormone (it is easy to be fixed), chromosome test
(karyotype), and testis biopsy (to see if they can get healthy ones from
here), and something like |
|