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全部话题 - 话题: thalamus
1 (共1页)
f**d
发帖数: 768
1
来自主题: Neuroscience版 - eBook: From computer to brain
这是一本计算神经科学的优秀著作,全文拷贝这里(图和公式缺),有兴趣的同学可以
阅读
如需要,我可以分享PDF文件(--仅供个人学习,无商业用途)
From Computer to Brain
William W. Lytton
From Computer to Brain
Foundations of Computational Neuroscience
Springer
William W. Lytton, M.D.
Associate Professor, State University of New York, Downstato, Brooklyn, NY
Visiting Associate Professor, University of Wisconsin, Madison
Visiting Associate Professor, Polytechnic University, Brooklyn, NY
Staff Neurologist., Kings County Hospital, Brooklyn, NY
In From Computer to Brain: ... 阅读全帖
l*h
发帖数: 4124
2
infarction of the ventral posterior region of thalamus can result in
intractable pain. the pain usually starts several days to several weeks
after the injury. this is an indication that the affected region of the
thalamus partly survives, which, however, doesn't necessarily mean it is
good clinically.
the pain cannot be relieved by aspirin or other NSAIDs. the only drugs that
may be effective are central analgesics such as opioids.
surgically, the pain may be relieved by ablation of VPL and VPM ... 阅读全帖
S*****s
发帖数: 287
3
这个贴光是 Re 的回帖太多了,找半天才看到你的问题。我们实验室涉及的方向比较杂
,做什么的人都有,所以我什么都沾一点。我们做的是癫痫病的 channelopathy,就是
离子通道异常引起的癫痫。Seizure 一般都是突然发作,完毕之后在很短的时间内恢复
常态,这个和离子通道 fast activation fast deactivation 的特点满符合。而且目
前在 Calcium channel, sodium channel, GABAA receptor (Chloride channel) 里都
发现了和癫痫有关的突变,而且做成 knockin 老鼠之后在老鼠上也发现了癫痫。这些
都说明 channelopathy 满靠谱。这个应该就是你说的 intrinsic 的离子机制吧。
hippocampus 应该是和 temporal lobe epilepsy 有关系,是 hippocampus 和 皮层之
间的 oscillation 发生了异常。 TLE 是一个 partial epilepsy,只涉及到大脑皮层
的某一个区域功能增强。我们的癫痫研究和 thalamu... 阅读全帖
S*****s
发帖数: 287
4
这个贴光是 Re 的回帖太多了,找半天才看到你的问题。我们实验室涉及的方向比较杂
,做什么的人都有,所以我什么都沾一点。我们做的是癫痫病的 channelopathy,就是
离子通道异常引起的癫痫。Seizure 一般都是突然发作,完毕之后在很短的时间内恢复
常态,这个和离子通道 fast activation fast deactivation 的特点满符合。而且目
前在 Calcium channel, sodium channel, GABAA receptor (Chloride channel) 里都
发现了和癫痫有关的突变,而且做成 knockin 老鼠之后在老鼠上也发现了癫痫。这些
都说明 channelopathy 满靠谱。这个应该就是你说的 intrinsic 的离子机制吧。
hippocampus 应该是和 temporal lobe epilepsy 有关系,是 hippocampus 和 皮层之
间的 oscillation 发生了异常。 TLE 是一个 partial epilepsy,只涉及到大脑皮层
的某一个区域功能增强。我们的癫痫研究和 thalamu... 阅读全帖
l*h
发帖数: 4124
5
this looks like his parietal lobe is affected. combined with male, 59yo, it
is >80% certain it is a high grade glioma.
if it's GBM, the median survival is ~3 mon w/o treatment, ~15 mon with
active treatment in the US. for active treatment, almost every day is spent
in some medical setting.
if it's anaplastic astrocytoma, the median survival is a little longer, up
to double that of GBM.
there is a much lower chance it's a mixed, but high grade glioma.
treatment includes surgery, chemo and radiati... 阅读全帖
t***u
发帖数: 807
6
来自主题: WaterWorld版 - 肖传国教授的一个微博
【肖氏术最新消息】ACH的双盲随机对照肖氏手术实验正式启动
Iamback:
信誉死的惨败:ACH的双盲随机对照肖氏手术实验,正式启动
在3月份脊柱裂协会第二届世界大会上,ACH的医生宣布,双盲随机对照的肖氏反射弧临
床实验,20名病人已经招募到齐,IRB也批准了实验。
½ Detethering (D)
½ Detethering + Xiao Procedure (D + X)
(D + X) – D = X
这个临床实验,不过结果如何,都是在人类和疾病做斗争过程中值得探索的步骤。
可是,信誉死的恶棍们,千方百计阻扰这个临床实验的进行,写了很多黑函。
我记得,信誉死一次次宣布ACH的双盲随机对照试验被取消了。
他们阻扰科学进展的努力,犹如螳臂当车。
------------
Current Status of ACH Trials
All Children’s Hospital and Johns Hopkins Medicine
St. Petersburg, FL
Both IRB Approved
Randomized Spina Bifida T... 阅读全帖
g*****j
发帖数: 1211
7
哈哈,有个懂行的了。
可是L4可以通过dorsal column或者anterolateral column传到thalamus,然后再到大脑
皮层,穴位的作用可能是因为在thalamus以上的传递通道有互相影响。
L****1
发帖数: 460
8
来自主题: Military版 - 李莉,你有citibank的信
王利民,我估计你老婆做指甲,中毒了,指甲油有多种有毒有害气体,包括甲醛等,
你查下这个病
Wernicke-Korsakoff syndrome:
Acetaldehyde induces a deficiency of vitamin B1. Thiamin, or Vitamin B1, is
so critical to brain and nerve function it is often called the "nerve
vitamin." AH has a very strong tendency to combine with B1, as the work of
Herbert Sprince, M.D. (discussed below) has shown.7 Unfortunately, in
detoxifying AH through combination with it, B1 is destroyed. Moderately
severe B1 deficiency in humans leads to a group of symptoms cal... 阅读全帖
g***r
发帖数: 285
9
来自主题: Medicine版 - 求助:妈妈得了脑梗塞

you have to tell me what is 丘脑? is it thalamus?
if it is, it's most likely lacunar infarct, which often occurs in internal
capsule,
most of lacunar infarct is due to small vessel disease with risk factors
such as hypertension, diabetes, hyperlipidemia and such, though very small
percentage of it could be from embolic source,
i see she is taking plavix, depends on which neurologist you are talking to,
either plavix or aggrenox will be fine, which is a step up above aspirin,
if she starts having
l*h
发帖数: 4124
10
来自主题: Medicine版 - 严重脑溢血求教
it's in the thalamus. it's not that easy even if it's very early. the
hemarrhage may have already torn long tract fibers and injured important
relay nuclei when the symptoms were seen.
c****t
发帖数: 19049
11
来自主题: NewYork版 - Gamma
Gamma / Pure (25.00-34.75 HZ) / 30 Minutes / Gamma is associated with
information-rich task processing and high-level information processing "A
New Theory of Consciousness" For scientists who study the human brain, even
its simplest act of perception is an event of astonishing intricacy. Gamma
brain activity may be a kind of binding mechanism. Gamma waves serve to
connect structures in the cortex where advanced information processing
occurs, and the thalamus, a lower brain region where complex r... 阅读全帖
y****i
发帖数: 2108
12
来自主题: WaterWorld版 - 肖传国的Xiao procedure
2011年1月的commentary review.
把结论部分给你摘出来:
The important message 。。。 is that the functional results 。。。are
less
favorable 。。。compared with the excellent reports of Xiao [1].
only one of eight sacral nerves innervating the bladder with at best
20–30%
of the total sacral parasympathetic outflow to the urinary bladder is
activated on stimulation for initiation of micturition.
The authors’ plea is noteworthy, to continue scientific evaluation of
the
risks and the benefits of this procedure before it may... 阅读全帖
s******r
发帖数: 2876
13
来自主题: Biology版 - 请教高手如何胶回收17Kb质粒
就是low melting agarose,
run完胶,65 C 就可以融化,这儿有个protocol
http://thalamus.wustl.edu/nonetlab/ResourcesF/clone.html
不过要向干净的话,还是要phenol extract, ethanol precipitation.
不用kit,不会bind在柱子上。

什么是低熔点胶?为什么会帮助?不好意思,我孤陋寡闻。
S*****s
发帖数: 287
14
来自主题: Biology版 - Help needed: microdissection tools
I need to dissect out microstructures of mouse brain, such as cerebellum,
hippocampus, thalamus, etc. We have never done this in our lab before, so
our tools suck. But I do not want to waste money to order a random selection
on Fisher or VWR catalog. There are so many neuroscientists on this board.
Could you please let me know what are your favorite microdissection tools? I
need to order all the surgical tools to remove the head, take out brain,
and do actual dissection to get the substructures.... 阅读全帖
m*********n
发帖数: 215
15
来自主题: Biology版 - Help needed: microdissection tools
stereomicroscope,那个有自带的黑色背景台。#10 surgical blade和#5 镊子足够了。E12.5到p14都做过,在dish中加1Xpbs dissect。cerebellum, thalamus还有hippocampis都是这么明显的结构。。。
k********n
发帖数: 756
16
来自主题: Biology版 - 问几个OPTOGENETICS的基本问题
从来没有接触过做过,最近在写一个grant,请勿见笑
1.能不能在脑片上装染?
2.能在多大范围内开关控制神经活动?比如说thalamus?
m***d
发帖数: 441
17
来自主题: MedicalCareer版 - 推荐一个易读的neurology的网站
http://thalamus.wustl.edu/course/
又有图,又有非常通俗的解释,深浅对于USMLE非常合适,neuroscience不再枯燥。一直讨论不明白的一个NBME原图也在里面找到了。
如果我早看了这个网站,就不会对neuroscience头疼那么久了。
S******9
发帖数: 2837
18
来自主题: MedicalCareer版 - 帮助复习的网站
neuroanatomy
http://thalamus.wustl.edu/course/
a******e
发帖数: 88
19
来自主题: MedicalCareer版 - 大家帮我看题(NBME 7, block2)
left homonymous hemianopia. where's is the injury?
我的理解:
A: Caudate nucleus
B: Temporal
C: Thalamus
D: visual cortex
E: Internal capsule?
我的疑问是 visual cortex injury 有 macular sparing。最合适的答案应该是optic
tract。 这个的位置在哪里?我原先以为是在E附近。谢谢
k**e
发帖数: 2728
20
来自主题: MedicalCareer版 - ====学习资源信息网站====
请帮助补充。我们定期整理列好。谢谢!
=========
老刀博客的链接
http://www.mitbbs.com/pc/index/USMedEdu
=========
step1
anatomy: http://www.getbodysmart.com/index.htm
(thanks to hanm2)
neuroanatomy: http://thalamus.wustl.edu/course/
(thanks to SUMO2009)
(THANKS TO ANDY)
pathology: http://library.med.utah.edu/WebPath/webpath.html
CARDIOLOGY
http://www.med.ucla.edu/wilkes/inex.htm
http://depts.washington.edu/physdx/heart/demo.html
(thanks to XLVIVIAN)
*********************************
step2 (thanks to kawalee, misscookie)
... 阅读全帖
l*******8
发帖数: 290
21
来自主题: MedicalCareer版 - STEP 1 NBME Form 4 block 3 q 25

25) In a patient with a movement disorder , positron emission tomography (
PET), using a radioactive ligand for the dopamine 1 (D-1) receptor, shows a
marked reduction in the structure indicated by the arrow in the MRI of the
normal head. Which of the following is the source of the innervation of this
structure by dopamine-containing axons?
A) Globus pallidus
B) Motor cortex
C) Motor thalamus
D) Striatum
E) Substatia nigra
The arrow in the MRI points to the Caudate Nucleus.
w*********p
发帖数: 125
22
来自主题: MedicalCareer版 - coffee前辈面试指导总结
真是很实用。
后天就有一个本地的面试,今天早上才通知我。我知道自己纯粹是个候补,但总比没有
强哈。 结果Thalamus系统在测试中,急死人了。明晚还得跟两residents吃饭,我估计
人家周末都不看e-mail,没准就不带我了。
大家多上点面经啊。

发帖数: 1
23
来自主题: MedicalCareer版 - step 1 256 备考回忆录
我是属于很少冒泡的类型,在准备考试的过程中遇到过一些挫折在这里曾受到不少鼓励
,是我坚持下去的动力。因此在这里写下我的备考过程,希望能够对后来者有所帮助就
好。
作为一个毕业快十年,在实验室全职上班,又有家庭的CMG来说,备考的艰辛过程说来
都不容易,所以在这里就省略去这一段了,直接介绍一下备考经历。
我整个准备过程将近一年,从2016年4月开始到2017年3月29日参加考试。说心里话,看
了很多人的考经不少人都准备了两年甚至更长时间后,我一开始的信心是不太充足的,
能通过考试的都是身经百战的高手,而且只有一次机会,考得不好还不能再考,压力确
实不小。
但我想说的是,每个人的情况都不一样,我自己觉得我无法在两年甚至更长的时间里被
一个考试拖着,我更倾向于速战速决,在一年内解决掉step1这一步。战略定好之后,
当然随之而来的是战术的制定。作为全职上班者来说,每一天的复习时间都很珍贵,怎
么样在最短的时间内达到最大的复习效率,是贯穿我整个复习过程的关键因素,甚至在
冲刺阶段,这起到了决定性的因素。
就我自身的情况来看,我做了如下几个选择:
1. 是跟组学习还是自己单打独斗?
这是因人而异... 阅读全帖
b******a
发帖数: 704
24
来自主题: Medicalpractice版 - 病例有奖竞猜, Ageusia and anosmia
"PMH/SH/FMH/ROS are all unremarkable.
PEs are normal except ageusia and anosmia.
His MRI of Brain is normal. "
Normal PE & history ruled out inflammation in sinus nasal & oral cavity/nasal
polyps, surgery or trauma, drug induced toxicity, Alzhermer dz, Pakingson's
dz.
Normal MRI may rule out brain tumor, MS, brain injury.
Patient has both ageusia and anosmia ruled out thalamus defect?
He is too young for a normal aging.
How about endocrine diseases such as diabetes (should have other sympteoms)... 阅读全帖
m********4
发帖数: 607
25
来自主题: Medicalpractice版 - 这个case不分享真对不起大家。
I've learned that there are three things which can cause hyperdensity (white
) on CT--- bone, calcification, blood. If it isn't blood, what is it?
The location of hyperdensity in this case is close to thalamus, basal
ganglia, and substantia nigra.
Over-activity of the neurotransmitter dopamine can induce chorea-like
movement. Substantia nigra pars compacta has dopaminergic neurons.
It will be very interesting if the hyperdensity disappears soon after the
glucose level is well controlled.
A*******s
发帖数: 9638
26
来自主题: Medicalpractice版 - 『图文并茂』Fatigue, sleep 20 hours per day
A heterogeneous mass lesion involving right BG, thalamus and superior
cerebellar peduncle/midbrain with surrounding edema and mild midline shift.
MRI would be better than CT though.
z*****2
发帖数: 498
27
来自主题: Medicalpractice版 - 『图文并茂』Fatigue, sleep 20 hours per day
是啊, 我有20多年没有听到 BG, thalamus and superior cerebellar peduncle/
midbrain 这样的名词了,真是亲切。在国内我主要做stereotactic neurosurgery, 来
美国做Gamma unit的fellowship. 后来遇到另外一个CMG电脑高手教我,于是就改了行
了。提到”心术“, 最近我刚刚贴在我新开的网站上,刚看两集:
http://social.cmgforum.net/blog/view/656/--
S*****s
发帖数: 287
28
我做分子和细胞生物学的,最头疼的就是电生理,不过幸亏实验室里很多电生理的牛人
,所以课题一直进展不错。
我的课题研究癫痫,所以 cortex, thalamus, hippocampus 我都做。分子和细胞做的
比较多,也做 slice recording 和 patch clamp recording。不过涉及电生理的实验
一般都找个 collaborator 了事。很高兴这个版能成立,希望和大家多交流!
f**d
发帖数: 768
29
你这全才啊
对于epilepsy,有个问题
是网络机制,还是intrinsic 的离子机制引起的?
为啥,源头总是起于hippocampus区?

我做分子和细胞生物学的,最头疼的就是电生理,不过幸亏实验室里很多电生理的牛人
,所以课题一直进展不错。
我的课题研究癫痫,所以 cortex, thalamus, hippocampus 我都做。分子和细胞做的
比较多,也做 slice recording 和 patch clamp recording。不过涉及电生理的实验
一般都找个 collaborator 了事。很高兴这个版能成立,希望和大家多交流!
i*****i
发帖数: 2734
30
因为是ECE出身,基本还是做图像算法居多。处理 T1, T2, fMRI。比如说给
longitudinal
study做putamen, caudate, hippocampus 和 thalamus机器分割,correlation
study。涉及的有MS, 和 Alzheimer‘s。
f**d
发帖数: 768
31
谢谢解释和提供的文章链接,有空好好看看。
我们最近的研究和epilepsy擦边,但我们又不熟悉这领域,所以想问明白点:
如你所说,EPILEPSY和channelopathy有关,如果这样,任何cortex都可能发生啊
为啥临床上发现epilepsy总是先起源于hipp and thalamus?
---这两个区含有另外什么特殊的东西使其更容易患病?
我的最初理解:epilepsy有两个主导起因
1 离子机制,当NA+ Ca2+等去极化离子 和 K+, Cl-等超极化离子的平衡被打破,
使膜电位偏向去极化时,会引起epilepsy
2 突触机制,当兴奋性突触电位EPSP 和 抑制性突触电位 IPSP 的平衡被打破时(如
GABAA突变)也会引起膜电位偏向去极化,从而引发epilepsy.
但如果这样的话,离子机制和突触机制在海马和皮层都差不多啊
可为啥临床上epilepsy往往先产生于海马而不是皮层呢?
--难道海马具有一些我们目前还不知道的特殊致病因素?

thalamocortical
circuitry
S*****s
发帖数: 287
32
不会。你的问题在我推荐的文章里都有提及。Hippocampus 和 Thalamus 都和皮层有一
个 Oscillation,如果这个平衡被打破了改变了 oscillation 的性质就可能引起癫痫
。这篇文章里提到了这个 Oscillation 的具体性质和怎么样改变会引起癫痫。这篇文
章是我很久前看的,很抱歉具体细节我记不清了,不过我可以再读一下咱们一起讨论讨
论。
S*****s
发帖数: 287
33
我做分子和细胞生物学的,最头疼的就是电生理,不过幸亏实验室里很多电生理的牛人
,所以课题一直进展不错。
我的课题研究癫痫,所以 cortex, thalamus, hippocampus 我都做。分子和细胞做的
比较多,也做 slice recording 和 patch clamp recording。不过涉及电生理的实验
一般都找个 collaborator 了事。很高兴这个版能成立,希望和大家多交流!
f**d
发帖数: 768
34
你这全才啊
对于epilepsy,有个问题
是网络机制,还是intrinsic 的离子机制引起的?
为啥,源头总是起于hippocampus区?

我做分子和细胞生物学的,最头疼的就是电生理,不过幸亏实验室里很多电生理的牛人
,所以课题一直进展不错。
我的课题研究癫痫,所以 cortex, thalamus, hippocampus 我都做。分子和细胞做的
比较多,也做 slice recording 和 patch clamp recording。不过涉及电生理的实验
一般都找个 collaborator 了事。很高兴这个版能成立,希望和大家多交流!
i*****i
发帖数: 2734
35
因为是ECE出身,基本还是做图像算法居多。处理 T1, T2, fMRI。比如说给
longitudinal
study做putamen, caudate, hippocampus 和 thalamus机器分割,correlation
study。涉及的有MS, 和 Alzheimer‘s。
f**d
发帖数: 768
36
谢谢解释和提供的文章链接,有空好好看看。
我们最近的研究和epilepsy擦边,但我们又不熟悉这领域,所以想问明白点:
如你所说,EPILEPSY和channelopathy有关,如果这样,任何cortex都可能发生啊
为啥临床上发现epilepsy总是先起源于hipp and thalamus?
---这两个区含有另外什么特殊的东西使其更容易患病?
我的最初理解:epilepsy有两个主导起因
1 离子机制,当NA+ Ca2+等去极化离子 和 K+, Cl-等超极化离子的平衡被打破,
使膜电位偏向去极化时,会引起epilepsy
2 突触机制,当兴奋性突触电位EPSP 和 抑制性突触电位 IPSP 的平衡被打破时(如
GABAA突变)也会引起膜电位偏向去极化,从而引发epilepsy.
但如果这样的话,离子机制和突触机制在海马和皮层都差不多啊
可为啥临床上epilepsy往往先产生于海马而不是皮层呢?
--难道海马具有一些我们目前还不知道的特殊致病因素?

thalamocortical
circuitry
S*****s
发帖数: 287
37
不会。你的问题在我推荐的文章里都有提及。Hippocampus 和 Thalamus 都和皮层有一
个 Oscillation,如果这个平衡被打破了改变了 oscillation 的性质就可能引起癫痫
。这篇文章里提到了这个 Oscillation 的具体性质和怎么样改变会引起癫痫。这篇文
章是我很久前看的,很抱歉具体细节我记不清了,不过我可以再读一下咱们一起讨论讨
论。
w*****y
发帖数: 736
38
不会是说这篇吧?
Long-term modulation of electrical synapses in the mammalian thalamus.
r***y
发帖数: 25
39
来自主题: Neuroscience版 - ibm cognitive computing
Their macro architecture, instead of their micro ones, are more interesting
. From a glimpse of the diagram (it is really a glimpse in all of their
videos, LOL), they have single units from all brain regions (visual cortex,
thalamus, BG, etc) involved in a task and establish hardware connections
between these units. The single unit could be any currently successful
neuron model (Though in personal opinion, the Izhikevich version is best
suited in this large-scale network approach). The connecti... 阅读全帖
r***y
发帖数: 25
40
来自主题: Neuroscience版 - ibm cognitive computing
Their macro architecture, instead of their micro ones, are more interesting
. From a glimpse of the diagram (it is really a glimpse in all of their
videos, LOL), they have single units from all brain regions (visual cortex,
thalamus, BG, etc) involved in a task and establish hardware connections
between these units. The single unit could be any currently successful
neuron model (Though in personal opinion, the Izhikevich version is best
suited in this large-scale network approach). The connecti... 阅读全帖
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