时间:2019-01-09 作者:英语课 分类:健康与环境


英语课

HEALTH REPORT-July 24, 2002: Hormone 1 Replacement 2 Therapy Study Halted


By Nancy Steinbach
This is the VOA Special English Health Report.


American government researchers have halted a national women’s health study
because they found harmful effects from hormone replacement therapy, or H-R-T.


Women’s bodies stop producing the hormone estrogen at about the age of fifty.


This period of life is called menopause. Until now, medical experts believed that
taking the hormone estrogen could protect older women from health problems like
heart disease. Recent studies have disagreed, however.


The latest study is the largest ever done to investigate the effects of H-R-T on
healthy, older women. Researchers from the National Institutes of Health carried out the study. It involved more
than sixteen-thousand women between the ages of fifty and seventy-nine. Half of the women took a pill that
contains the hormones 3 estrogen and progestin. The other women took an inactive substance.


After five years, the women who took the hormones were twenty-six percent more likely to develop breast cancer
than the others. The study found that the hormones also increased the chances of heart attacks by twenty-nine
percent and strokes by forty-one percent. The researchers did find that the treatment reduced the number of
broken bones and colon 4 cancers. But officials decided 5 to stop the study three years early because they believed
the hormones did more harm than good.


The study tested the hormone progestin mixed with a kind of estrogen. About six -million American women use
this kind of hormone replacement therapy. Adding progestin to the estrogen is necessary to prevent the risk of
cancer of the uterus. A similar combination is used in Europe.


The study results were published in the Journal of the American Medical Association. Some experts said women
should use the hormones only to ease severe problems during menopause, such as feelings of extreme heat. They
said women should not take hormone replacement therapy for more than a few years. They said women should
protect their hearts and bones with other drugs and exercise.


The researchers said more testing is needed to see if other kinds of H-R-T have similar effects. For example, they
said it may be safer to use smaller amounts of estrogen and progestin that can be placed on the skin.


This VOA Special English Health Report was written by Nancy Steinbach.



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n.荷尔蒙,激素,内分泌
  • Hormone implants are used as growth boosters.激素植入物被用作生长辅助剂。
  • This hormone interacts closely with other hormones in the body.这种荷尔蒙与体內其他荷尔蒙紧密地相互作用。
n.取代,替换,交换;替代品,代用品
  • We are hard put to find a replacement for our assistant.我们很难找到一个人来代替我们的助手。
  • They put all the students through the replacement examination.他们让所有的学生参加分班考试。
n.冒号,结肠,直肠
  • Here,too,the colon must be followed by a dash.这里也是一样,应当在冒号后加破折号。
  • The colon is the locus of a large concentration of bacteria.结肠是大浓度的细菌所在地。
adj.决定了的,坚决的;明显的,明确的
  • This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
  • There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。
学英语单词
allnatural
amazon ants
amidotrizoate
ancestrality
angle-park
BANKPAC
Bona fide buyer
bulldiker
cab (corrective active board)
cane fibre board
centralized control unit
collection snow plow
combination fuse
cribrate
cup and bob rheometer
date intermediate wheel tube
Della Falls
detailed operating procedure
diesel-electric reduction
earth evolutionism
Fabry-Perot cavity
feasible constraint
February
fill plug
forkings
free on board harbor
fullbore
gabeller
gallnuts extract
geomorphological structure
gevalts
grehan
hand pulling
homily
impact die forging
isolated words
ivax
kadiatou
Korotoyak
laser homing guidance
Leboyer method of childbirth
lifting rack
live program(me)
loading in turn
mainbocher
market hospitality
markov machine
mechanical raking system
multicylinder cngime
non linear shift register
obturating ring
over and over addition
oxyhaemocyanin
palimonies
pass a stopper
pass shame,past amendment
Pfeiffer's disease
position modulation (deflection modulation)
postcibal diarrhea
posterior ascending branch
preparatory measure
preproproteins
pure clonic form
recursive pattern matcher
registering statoscope
samway
sand bailer
sausage cooling cabinet
scale card
secretaries of labor
selected-response test
selfcapacitance
Semitological
service-oriented integration
shire town
short run casting
short-coat
slack loop washer
smoke-tunnel
solubiloptin
specific energy of blow
split the wind
subcause
system programmed operators
tail setting angle
tangled up
teno(nto)-
the absolute
thin film head
todts
tropidoclonions
tuffite
turbine-type rotary intersection
ulcerative cowpox
up train
voicings
vor (very-high frequenc yomni-direction radio range)
water turbid
weight throw
wet bulb
whinest
wide-wale