健康报道－叶酸可降低胎儿死亡率
HEALTH REPORT - Folic Acid Reduces Fetal Deaths
By Nancy Steinbach
Broadcast: October 23, 2002
This is the VOA Special English Health Report.
怎么设置dns
A new study in Sweden has confirmed another important health effect of the B-vitamin known as folic acid.
营业收入利润率计算公式Rearchers at the United States National Institute of Child Health and Human Development worked with scientists at the Karolinska Institute in Stockholm1, Sweden. They reported their findings in the Journal of the American Medical Association.
腌白萝卜的做法The rearchers were looking for a possible link between folic acid and fetal death in the early months of pregnancy. The study involved2 more than one-thousand-three-hundred pregnant women in Uppsala County, Sweden. The rearchers 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. Their babies died between six and twelve weeks of pregnancy3. Nine-hundred-twelve other women had normal pregnancies.
The rearchers found that the women with low levels of folic acid had a fifty percent incread risk of losing their babies early in pregnancy. Extremely high levels of folic acid were found to have no effects on the pregnancies.
主的手歌谱The rearchers say that every woman between the ages of fifteen and forty-four should be getting four-hundred micrograms4 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 rious birth defect of the brain or spine. Experts say women need to have enough folic acid even before they become pregnant.
火龙果的营养价值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 dia 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 dia.
The human body cannot make folic acid. It must get the vitamin from foods. Foods rich in folic acid in
clude beans, green leafy vegetables, liver5, eggs and fruits such as oranges and grapefruits6. 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.
交通警察手势图
This VOA Special English Health Report was written by Nancy Steinbach.
小学生寒假作文1. Stockholm [ ♦♦♒☜◆❍]n.斯德哥尔摩(瑞典首都)在外面英文
2. involved [♓⏹●♎]adj.棘手的，有关的
3. pregnancy [ ☐❒♏♈⏹☜⏹♦♓]n.怀孕
4. microgram [♊❍♋✋❒☜☺♈❒✌❍]n.微观图, 显微照片
5. liver [ ●♓☜]n.居住者，生活优裕的人，肝脏
6. grapefruit [ ♈❒♏♓☐♐❒◆♦]n.柚子, 柚子树
