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
air-seasoned timber
allomorphy
anagalligenin
androgenic haploid
antiheparin
audiovisual work
auger process
Bacillus indigogenes
Bendemeer
benzylmalonic acid
bernkopf
biographing
brekkie,brekky
casing bowl
catatonia features specifier
clasp boat
common problems
counter-lateral septum
countersniper
crapand
Date of Issue of Bill of Lading
day dream
defended terrance
diamond airfoil
diphenylbutylpiperidines
double elliptic geometry
doughy sensation
EAF (equivalent availability factor)
Enteryperpathy
ethnic national sovereignty
ex-stepdads
expand and contact freely
fachan
faucial
feurle
find favor with sb
four-headed capstan
gades
galoshes
gauge bar
give permission
gnathosomal groove
Godkowo
grain casting
homerkin
homogeneous number
hotlier
ignore uppercase
infra-red
integrating water sampler
king bolt bush
laser pulp cautery
leadbitters
leashing
machendra
Magill band
marshalling-departure track
michigan model
microcinematography
min max system
minilateralism
Mossuril
Mulderangst
Natal Bk.
not interesting or exciting
orbital maneuvering system
phototropic material
physnamy
plastic reinforcement
population shifts
righthelmet
ruler test
saleable product
Scottsonizing
selenoenzyme
solar azimuth angle
spectral transmission ratio
spiral scanning
stelocyttarous
stereo-mosaic
streufert
sub-channel signal
sudoxicam
syllable structure
tail gate end pillar
Taiyeh Lake
task activation
Taylor's equation
three-db coupler
ticket-holders
tommy logge
touch-down
twinning lamella
umuofia
university-rankings
utero-sacral promontory fixation
Van Duuren code
Warham, William
weightless deposit
ysalamir
zero-shifting