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
abime
abligated
absolute perturbation method
access originator
artificial black or white(signal)
biangular
bimaxillary osteotomy
bind sb over to
biocompounds
bolt-cutters
box suppers
bracko
by view of
cam follower rocket
caret notation
carwasher
cascarilla oil
common-use forms
cryptodidymus
cut off grade
dead man's handle
decadere
displaying instrument
Donmox
electronic data-processing equipment
ELSSE
ethanolysis
ewest
fengai
flare up in prices
front sectional elevation
gear hole
gornard
gripper loom
guidescope
heldt
hot spinning
hudrogenated fat
hug machine
ignats
Inchenhofen
inenubilable
insecticidal activity
iodine trichloride
isomorphisms
Kafinda
keeble
kosich
lake keukas
latticed girder
lead vanadate (vanadinite)
liner man
long duration
Maritime Disaster Inquiry Agency
matsusaka beef
monowheels
multi-r-f-channel transmitter
multichannel multiplex
Newman-Berger method
no-hoisting drill bit
nonmanufacturer
numeric pager
oil head
Paljakka
partial petiole
Penangites
pipe bending machine
play-by-plays
polyphase kilo-watthour meter
polystichopsis subrflexipinna shieh
prequestionnaires
probe-microanalyser
Rayevka
reminisced
saturnicentric
screen(ing) analysis
seal-box
simulation device
socket form moulding
start-hole
strip plate
Swiss Bank Corp
tapelines
telegramming
throttling control element
to smurf
tomich
Tourves
trailers(car)
transient technique
travelling-wave
trestle tree
umbonial
usb storage
von neumann model
wave momentum density
witchblade
workstone
xanthogens
xenodocheum
yearly change
Zaytseve