时间:2019-01-08 作者:英语课 分类:健康与经济


英语课

HEALTH REPORT - New Embryonic 2 Stem Cell Lines Developed for Researchers
By Paul Thompson


Broadcast: Wednesday, August 11, 2004


This is Gwen Outen with the VOA Special English Health Report.


Researchers in the United States recently announced the development of seventeen new lines of human embryonic stem cells. The researchers work at Harvard University for the Howard Hughes Medical Institute. They said the new stem cell lines will be offered for use by other scientists.


Stem cells have qualities that might make them useful in the treatment of diseases. Scientists are especially interested in stem cells from embryos 3. These are able to develop into the different kinds of tissues of the body.


In two thousand two, President Bush restricted government support for such research. Federal money can only go to research on existing lines of embryonic stem cells.


Opponents of these limits include Ron Reagan, the son of the former Republican president. He gave a speech last month at the Democratic convention in Boston. He is not a scientist, but he described how stem cells might someday be used to treat a disease:


Doctors would take a cell from a patient and place the nucleus 4 inside an egg. Chemicals or electricity would cause the nucleus to divide into more cells to form an embryo 1. The stem cells could then be used to replace unhealthy cells in the patient.


Many scientists have hope for the possibility of such cures. Not all think the promise is as great as some people might believe, at least not yet. But some people oppose the use of embryonic stem cells. They say human life is destroyed because the embryo is destroyed to collect the cells.


Private laboratories are not affected 5 by the government limits. The new stem cell lines were developed by scientists in the laboratory of Douglas Melton. He is a Howard Hughes researcher at Harvard. The institute along with the university and the Juvenile 6 Diabetes 7 Research Foundation pay for his research.


The laboratory will use the stem cell lines to look for a cure for type one diabetes. Type one diabetes is also called juvenile diabetes. It is generally found in young people.


The disease is caused by a lack of cells that produce insulin in the pancreas. Douglas Melton's goal is to learn how to make embryonic stem cells that can grow the needed pancreatic cells. He says he hopes the new cell lines will speed this research and lead to new discoveries about other diseases, too.


This VOA Special English Health Report was written by Paul Thompson. This is Gwen Outen.



n.胚胎,萌芽的事物
  • They are engaging in an embryo research.他们正在进行一项胚胎研究。
  • The project was barely in embryo.该计划只是个雏形。
adj.胚胎的
  • It is still in an embryonic stage.它还处于萌芽阶段。
  • The plan,as yet,only exists in embryonic form.这个计划迄今为止还只是在酝酿之中。
n.晶胚;胚,胚胎( embryo的名词复数 )
  • Somatic cells of angiosperms enter a regenerative phase and behave like embryos. 被子植物体细胞进入一个生殖阶段,而且其行为象胚。 来自辞典例句
  • Evolution can explain why human embryos look like gilled fishes. 进化论能够解释为什么人类的胚胎看起来象除去了内脏的鱼一样。 来自辞典例句
n.核,核心,原子核
  • These young people formed the nucleus of the club.这些年轻人成了俱乐部的核心。
  • These councils would form the nucleus of a future regime.这些委员会将成为一个未来政权的核心。
adj.不自然的,假装的
  • She showed an affected interest in our subject.她假装对我们的课题感到兴趣。
  • His manners are affected.他的态度不自然。
n.青少年,少年读物;adj.青少年的,幼稚的
  • For a grown man he acted in a very juvenile manner.身为成年人,他的行为举止显得十分幼稚。
  • Juvenile crime is increasing at a terrifying rate.青少年犯罪正在以惊人的速度增长。
n.糖尿病
  • In case of diabetes, physicians advise against the use of sugar.对于糖尿病患者,医生告诫他们不要吃糖。
  • Diabetes is caused by a fault in the insulin production of the body.糖尿病是由体內胰岛素分泌失调引起的。
学英语单词
actuating lever
ageing hardening
air launched cruise missile
Amphicoelia
approximation by operator
Atherolipin
athletic communication psychology
back out
baggage-rooms
beef-witted
bimorphic male
bottle track
brachyeardia
catch ratline
central tegmental tract
climatic stability theory
communication modem
counterguerilla
couplets on pillar
cylindruria
derne
design-construction team
dirty Sanchezes
Edlitz
electrolytic gravimetry
electronic inductivity
enterocardiovirus
Every bean has its black
exit jewel
fast loading
fault tolerant routing algorithm
feature-based design
fenestellae
filicanes
fluid state
full circle girder erecting crane
future light cone
grieve
histrionic
i-wived
identification of immature infant
Insiza
integrated trajectory system
issue in
kilogal meter
left internal spermatic vein
lifoes
low pump suction pressure
low-voltage capacitor discharge
make your bread
Mankayan
Mexican stand-off
National Association of Precancel Collectors
navarea warning service
nickums
nonmythic
North Fareham
octonare
Olorani
Oseen force
outcools
paciest
padbolt
panoptically
pinest
plane bed
plusia agnata staudinger
polytropic expansion
promotion and transfer
propositional dynamic logic
protanabol
quarter moon
radiatio
radio environment
regular epitaxy
road level
rotating contactor
sales representatives
sell't
shifting shaft
slugginess
soil bearing value
spice mixture
stinking rich
stitch line
subdermal vascular plexus free skin graft
subintrance
technically strong market
temperature expansion of pipes
terminal interchange
thyroid hormone evaluation
tongbok (dongbog)
trigyric
upbar
verbal creation
Vilna Gaon
vitamin b12 monocarboxylic acid
wako
Wiesentheid
wound heart wood
yahe (papua new guinea)
yoy