时间:2019-01-04 作者:英语课 分类:健康与环境


英语课

HEALTH REPORT - October 23, 2002: Folic Acid Reduces Fetal Deaths


By Nancy Steinbach



This is the VOA Special English Health Report.


A new study in Sweden has confirmed another important health effect of the B-vitamin known
as folic acid.


Researchers at the United States National Institute of Child Health and Human Development
worked with scientists at the Karolinska Institute in Stockholm, Sweden. They reported their
findings in the Journal of the American Medical Association.


The researchers were looking for a possible link between folic acid and fetal death in the early
months of pregnancy 1. The study involved more than one-thousand-three-hundred pregnant
women in Uppsala County, Sweden. The researchers measured the amount of folic acid in their
blood during the sixth and twelfth weeks of pregnancy.


Four-hundred-sixty-eight of the women had miscarriages 2. Their babies died between six and twelve weeks of
pregnancy. Nine-hundred-twelve other women had normal pregnancies 3.


The researchers found that the women with low levels of folic acid had a fifty percent increased risk of losing
their babies early in pregnancy. Extremely high levels of folic acid were found to have no effects on the
pregnancies.


The researchers say that every woman between the ages of fifteen and forty-four should be getting four-hundred
micrograms of folic acid every day. Earlier studies have shown that having enough folic acid in the early months
of pregnancy can reduce the risk of having a baby born with a serious birth defect of the brain or spine 4. Experts
say women need to have enough folic acid even before they become pregnant.


Doctors say women of child-bearing age are not the only ones who need folic acid. The vitamin has been shown
to protect against heart disease and stroke in older people as well. And some studies are suggesting that folic acid
may reduce the chances of developing some kinds of cancer and Alzheimer’s disease.


The human body cannot make folic acid. It must get the vitamin from foods. Foods rich in folic acid include
beans, green leafy vegetables, liver, eggs and fruits such as oranges and grapefruits. Medical experts say that
women who are not sure they are getting enough folic acid from their food should take a vitamin pill every day.


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



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n.怀孕,怀孕期
  • Early pregnancy is often accompanied by nausea.怀孕早期常有恶心的现象。
  • Smoking during pregnancy increases the risk of miscarriage.怀孕期吸烟会增加流产的危险。
流产( miscarriage的名词复数 )
  • Miscarriages are usually caused by abnormal chromosome patterns in the fetus. 流产通常是因为胎儿的染色体异常造成的。
  • Criminals go unpunishedareconvicted and are miscarriages of justice. 罪犯会逍遥法外,法律会伤及无辜,审判不公时有发生。
怀孕,妊娠( pregnancy的名词复数 )
  • Since the wartime population needed replenishment, pregnancies were a good sign. 最后一桩倒不失为好现象,战时人口正该补充。
  • She's had three pregnancies in four years. 她在四年中怀孕叁次。
n.脊柱,脊椎;(动植物的)刺;书脊
  • He broke his spine in a fall from a horse.他从马上跌下摔断了脊梁骨。
  • His spine developed a slight curve.他的脊柱有点弯曲。
学英语单词
2-Hydroxychalcone
abgenix
Agrostis tenuis
aloysias
anti-parallel pipe
applied acoustics
be sent into garrison
begob
beta interaction
bridle roads
c.i
child support payment
Chlorethamine
chlorosulfonic acid
ciw
classicals
climent
clip-bolt
compact ration
concur with
controllable mine field
convection-diffusion cell
Deadwood Res.
degassing method
design head of pumping station
device driver subroutine library
door hasp holder
drag-chain conveyer
elya
empis ingrata
Ethel Reefs
felicitation
fluorine (f)
frost protection
Fuldan
full automatic vehicle
futuristic-looking
gownsmen
graduation of curves
grunt-work
invariant object
kamille
keijella suanfenga
lactodifucohexaose
laurvigite
louis joliets
mac and cheese
march fly
measurement and control system
monthly financial statement
mouldboard reinforcement
mount elgon bat virus
mowerless
multistage improvement program
non-reef-buil-ding coral
nugild
ordinary porcelain
oxapyrenyl
page-out
paper-patch
perpetual fire insurance
phellinus linteus
plutonic rocks
Poa reverdattoi
product designing
Purmerland
raised the bar
rake stirrer
rated load torque
recursive equation
saurus
savement
seeendary gonocyte
sequential mode
silk-spinning machine
single press process
skycars
soulfuls
spatial digitizer
St Martinville
stabilizing treatment
staff travel
steady heel angle
steering wheel lock
subordinate activation
suffolk colter
superselected
swermirin
Taraxacum abbreviatulum
teem down
thimble tube boiler
tissue fate
to douse
toiled
vote by sitting and standing
weids
wetness
whisper'd
Yaseni
yellow birch
yellow journalisms
zimermen