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.



Email this article to a friend
Printer Friendly Version



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
acanthaxius grandis
administrative publicity
afterheat heat output
Atlantic pomfret
auditing system
back-porch tilt
bad-neighbor policy
bamc
bearberries
betaactivity
biquinary code
bird shots
busters
calcipetrile
candider
carrier screening
chincapins
choke fitting
chorum (corum)
colurabianum oesophagostomum
conical drum hoist
Decaspermum glabrum
dejesus
deliration
Demours'membrane
dispersoi
Doctor Faustus
electromagnetic vibration test
encephaloophthalmic
epoxynephthenol
evangelized
exposure measurement
failure time distribution
feltwort
film fern
foller
foodyr
fraternality
fraxinus dipetalas
gas burning furnace
groundwater decrement
have one's cake and eat it
human physiological reaction
i'th'
Idritsa
imagesettings
indirect blood agglutination test
inner deforming loss
judicial decision-making
kaddoumi
Karora
Kressbronn am Bodensee
learn ... by rote
load shielding and sequencing
Maceio
machining reproducibility
melting facility
milk scall
multi-access computing mode
music-hall
never cry
nominalise
off-loadings
on holidays
oneliner
optical mosaic
overpowerful
oysters Rockefeller
PHIX
Phocoena phocoena
plastic fracture mechanics
plops
post-osmicate
primordial element
radicula
recton
repentinous
required page end character
reverse osmosis filter
reverse supported lever
rhythm tempo
sapstreak
screwdriver with wooden handle
seed graft
self-consistent field scattered wave technique
Seroglazka
solidifiability
Spilsby
stop frog
Tapuria
task translator
teaching philosophy
there or thereabouts
tideful
timbals
tree analysis code
variation tone
videopoker
vittless
what's eating sb?
wind breakage
work-cards