CE_bulletin 版 (精华区)
发信人: TeacherZhang (tz★亲密飘忽), 信区: CE_bulletin
标 题: 我校年轻校友时松海获《科学》杂志"青年科学家奖"
发信站: 听涛站 (2001年12月26日09:46:39 星期三), 站内信件
我校年轻校友时松海获《科学》杂志"青年科学家奖"
清华新闻 & Science Magazine 2001-12-25 23:33:33 (89)
近日,我校生物系96年毕业生,现年27岁的时松海因其论文《AMPA受体动力学与神
经元突触的可塑性》(AMPA receptor dynamics and synaptic plasticity),荣获由
《科学》杂志2001年度全球青年科学家奖(Young Scientist Prize)。
"青年科学家奖"是由Amersham Biosciences公司(即以前的Amersham Pharmacia B
iotech公司)与《科学》杂志联合设立的,分全球奖和地区奖,旨在奖励分子生物学领
域成绩突出的博士研究生,全球奖受奖金额为2.5万美元。
时松海1973年生于中国东部沿海的乡村,1991年考入清华大学生物系,1996年毕业
。从小梦想成为科学家的他在清华的5年间不仅系统学习了数学、物理、化学等基础知识
,还接受了生物科学实验的系统训练,拓展了他在生物领域"如何提出问题、设计实验、
证明假设"的研究能力。
时松海毕业后前往美国留学。他加入到冷泉港实验室(CSHL)和纽约大学石溪分校
的一个遗传学联合项目的研究。1997年7月,他师从Roberto Malinow博士,在CSHL开始
了博士学位课题的研究工作,从事长时程增强机制(LTP)的研究,LTP被认为是脑神经
如何思考并存贮信息的机制。
在工作中,时松海博士将分子生物学、成像和电生理技术结合在一起,研究了海马
锥形神经元中AMPA受体的突触调控。他已经在《科学》发表了两篇第一作者的论文,并
在《细胞》上也发表了论文。1999年,他的论文入选该年度《科学》重大发现之列。
获得博士学位后的2000年12月,时松海来到了位于加州大学旧金山分校的休斯医学
研究所(Howard Hughes Medical Institute),在Yuh Nung Jan博士(美国科学院院士
)的实验室继续从事人脑功能与发育的研究。(李经 译)
Memory Research Wins Grand Prize from Amersham Biosciences and Science
PISCATAWAY, N.J.--(BW HealthWire)--Dec. 5, 2001--Amersham Biosciences an
d Science today announced that 27-year-old Song-Hai Shi is the 2001 Grand Pr
ize winner of the Young Scientist Prize for his work on memory and learning.
The announcement was made at an award ceremony in Stockholm, Sweden.
The Young Scientist Prize was established in 1995 to support molecular b
iologists in the early stages of their careers. Each year, awards are presen
ted to one grand prize winner and winners within four geographic regions. Th
is year, the regional prizes recognized discoveries about smallpox spread an
d cell motility, life after cell death, and more.
In his winning essay, Shi explains that just as weight-training strength
ens muscles, learning opportunities ``train'' our brains to store and proces
s massive amounts of information. According to Shi, this brain-strengthening
process, described by scientists as the ``long-term potentiation'' of conne
ctions, may help explain how best to promote memory and learning--and, perha
ps someday, why memory can falter.
Shi, now a Howard Hughes Medical Institute research associate at the Uni
versity of California at San Francisco, was a graduate student from the Stat
e University of New York at Stony Brook when he first began studying brain c
onnections called synapses. Working in the laboratory of Roberto Malinow at
Cold Spring Harbor Laboratory, Shi wanted to know exactly what causes long-l
asting changes in transmissions by these connections. In the brain's hippoca
mpus region, such transmission changes help us form new memories.
In his early work, Shi demonstrated that nerve-cell stimulation--similar
to the brain stimulation caused by learning--gives a signal to proteins tha
t help the brain make connections. These proteins, called receptors, quickly
relocate when the brain is stimulated and strengthened by learning. Specifi
cally, the unleashed receptors move from the inside of nerve cells, into the
branch-like arms of other nerve cells. Shi and his colleagues reported thes
e findings in Science on June 11, 1999. The relocation of these ``AMPA'' typ
e receptors requires the help of a second receptor, NMDA, Shi learned.
But, Shi wanted to know more about learning and memory. He had shown tha
t AMPA receptors in the brain relocate in response to stimulation. Next, he
wondered whether these same receptors might actually help strengthen the bra
in's connections and, therefore, memory. In fact, Shi found, AMPA receptors
are incorporated directly into brain connections, thereby strengthening them
, in response to learning opportunities. By fusing a green fluorescent prote
in to the AMPA receptors, he was able to track their movements, using micros
copic technology. Through such research, Shi said, ``We may eventually be ab
le to answer: how do we remember?''
Andrew Carr, CEO of Amersham Biosciences, commented: ``Song-Hai Shi's el
egant study of receptor dynamics and synaptic plasticity demonstrates the po
tential of next-generation investigators, whose new ideas and enthusiasm can
spark important fundamental discoveries. Through the Young Scientist Prize,
Amersham Biosciences and Science seek to reward such early accomplishments,
and promote further advances to benefit human welfare.''
Monica Bradford, managing editor of Science, added that ``breakthrough t
hinking by young scientists like Song-Hai Shi can trigger a chain-reaction o
f discovery as other researchers seek to replicate and further investigate t
he new findings. At Science, we are proud to be collaborating with Amersham
Biosciences to support the next generation of researchers.''
------------------------------------
Amersham Biosciences, the life sciences business of Amersham plc (LSE, N
YSE, OSE: AHM), is a world leader in developing and providing integrated sys
tems and solutions for disease research, drug development and manufacture. O
ur systems are used to uncover the function of genes and proteins, for the d
iscovery and development of drugs and for the manufacture of biopharmaceutic
als. The customers for Amersham Biosciences' products and technology are pha
rmaceutical and biotechnology companies and research and academic institutio
ns, principally in North America, Europe, Latin America, and Asia.
Science, a leading international weekly covering all disciplines, is pub
lished by the American Association for the Advancement of Science (AAAS), th
e world's largest general scientific organization. Science has the largest p
aid circulation of any peer-reviewed general science journal in the world.
(http://student.tsinghua.edu.cn)
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※ 来源:·听涛站 tingtao.dhs.org·[FROM: 匿名天使的家]
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