时间:2019-01-30 作者:英语课 分类:健康与经济


英语课

HEALTH REPORT - New Alzheimer's Drugs Tested
By Cynthia Kirk


Broadcast: Wednesday, August 04, 2004


This is Phoebe Zimmermann with the VOA Special English Health Report.


Researchers say two experimental drugs may be able to slow or even stop the progress of Alzheimer's disease. This condition kills brain cells. People over the age of sixty-five have an increased risk of developing it. So do people with a family history of the disease.


Scientists announced new findings during an international conference last month in Philadelphia, Pennsylvania. The Alzheimer's Association organized the meeting.


The new experimental drugs are designed to interfere 1 with a protein called beta-amyloid. This protein sticks together. It forms areas of plaque 2 found in the brains of people with Alzheimer's disease. Many scientists believe it kills brain cells.


Scientists at Georgetown University Medical Center in Washington, D.C., tested a drug called Alzhemed. The study involved two groups of people with mild to moderate Alzheimer's disease. One group took Alzhemed. The other took an inactive substance. Neither group knew which one they got.


The scientists say the group treated with the drug had a sharp drop in the level of beta-amyloid in spinal 3 fluid from the brain. No changes were reported in the other group.


Doctor Paul Aisen led the study. He said people who started with mild Alzheimer's suffered no further memory loss after a year on the drug. He said there were no serious side effects. This drug is now in final testing.


The other experimental drug is a compound known as l-y-four-five-oh-one-three-nine. This is designed to block the formation of enzymes 4 that produce beta-amyloid. Researchers from Eli Lilly and Company in Indianapolis, Indiana, led this study. It involved thirty-seven healthy adults over forty-five years old.


The researchers say levels of beta-amyloid in the blood fell after the group took the experimental drug for two weeks. They say greater amounts of the drug led to greater reductions.


Experts say more than fifteen million people around the world have Alzheimer's disease. These include four million Americans. Scientists are not sure what causes it. But they believe that genetic 5 and environmental influences are both involved.


Alzheimer's disease begins with mild memory loss. It gets worse and worse, until it robs people of their mind. Current drugs mostly treat only the signs of the condition. But they do not stop the disease or cure it.


This VOA Special English Health Report was written by Cynthia Kirk. This is Phoebe Zimmermann.



v.(in)干涉,干预;(with)妨碍,打扰
  • If we interfere, it may do more harm than good.如果我们干预的话,可能弊多利少。
  • When others interfere in the affair,it always makes troubles. 别人一卷入这一事件,棘手的事情就来了。
n.饰板,匾,(医)血小板
  • There is a commemorative plaque to the artist in the village hall.村公所里有一块纪念该艺术家的牌匾。
  • Some Latin words were engraved on the plaque. 牌匾上刻着些拉丁文。
adj.针的,尖刺的,尖刺状突起的;adj.脊骨的,脊髓的
  • After three days in Japan,the spinal column becomes extraordinarily flexible.在日本三天,就已经使脊椎骨变得富有弹性了。
  • Your spinal column is made up of 24 movable vertebrae.你的脊柱由24个活动的脊椎骨构成。
n. 酶,酵素
  • It was said that washing powders containing enzymes remove stains more efficiently. 据说加酶洗衣粉除污更有效。
  • Among the enzymes which are particularly effective are pepsin, papain. 在酶当中特别有效的是胃朊酶、木瓜酶。
adj.遗传的,遗传学的
  • It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
  • Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。
学英语单词
aero-optical effect
antilysim
antiovalbumin
aparecida
automatic water regulator
auxiliary floating dock
Ayudhya
Bangu
bayonet cap finish
bellow frame
bemoiling
beta-Laumontite
Bevidox
bint jubayl
blade lift device
Buandougou
capillary pipette
Cash Ratios
catarrhal fever
center front
clearence distance
cocto
condyloid artery
curarizing distance
dmitriis
drag-link mechanism
dunging
duromer
endangered animals
energizations
energy activation
environmental injury
errant
exhaust period
EXTSN (extension)
faithfully
final approach gate
fresh water allowance
frontal(frontal)apron-plain
full 3D migration
generalized constant
graph language
graphical user interface (gui)
guided mine
heavy melting scrap
herrero
hollow sound
Hughes Electronics Corporation
implicit function
inertia damping
jazzified
kamberi
knock it out of the park
L-5458
liberal-minded
mains receiver
make an overdraft
male cross
maniraptoriform
meta-tolyl-n-methylcarbamate
object-oriented programming
Olicin
orbital launch
orientedness
outbids
Overnight Index Swap
overstatement of liabilities
peach against
pseudo-elytra
Ranvier
ratio of net sale to receivable
reisens
retained fetal membrane
ribbon shape
RMPD
rocker arm resistance welding machine
rocking-contact
rosiest
sagittal surface
secret session
seldomest
signaling atm adaptation layer
ska punk
skin-friction resistance
squinting construction
st. jamess
surfing
tapotements
tax on gross profit basis
telemitron
televisioner
the sands of time
transhumances
transversectomy
triode amplifier
Tylophora
under-voltage tripping
Varas, R.
vasotecs
W. P.
well-invested