首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Dangers Await Babies with Altitude Women who live in the world’s highest communities tend to give birth to underweight babie
Dangers Await Babies with Altitude Women who live in the world’s highest communities tend to give birth to underweight babie
admin
2015-06-08
78
问题
Dangers Await Babies with Altitude
Women who live in the world’s highest communities tend to give birth to underweight babies, a new study suggests. These babies may grow into adults with a high risk of heart disease and strokes.
Research has hinted that newborns in mountain communities are lighter than average. But it wasn’t clear whether this is due to reduced oxygen levels at high altitude or because their mothers are under-nourished—many people who live at high altitudes are relatively poor compared with those living lower down.
To find out more,Dino Giussani and his team at Cambridge University studied the records of 400 births in Bolivia during 1997 and 1998. The babies were born in both rich and poor areas of two cities: La Paz and Santa Cruz. La Paz is the highest city in the world, at 3. 65 kilometers above sea level, while Santa Cruz is much lower, at 0.44 kilometers.
Sure enough, Giussani found that the average birthweight of babies in La Paz was significantly lower than in Santa Cruz. This was true in both high and low-income families. Even babies born to poor families in Santa Cruz were heavier on average than babies born to wealthy families in lofty La Paz. "We were very surprised by this result, "says Giussani.
The results suggest that babies born at high altitude are deprived of oxygen before birth. "This may trigger the release or suppression of hormones that regulate growth of the unborn child," says Giussani.
His team also found that high-altitude babies tended to have relatively larger heads compared with their bodies. This is probably because a fetus starved of oxygen will send oxygenated blood to the brain in preference to the rest of the body.
Giussani wants to find out if such babies have a higher risk of disease in later life. People born in La Paz might be prone to heart trouble in adulthood, for example. Low birthweight is a risk factor for coronary heart disease. And newborns with a high ratio of head size to body weight are often predisposed to high blood pressure and strokes in later life.
What does the new study discover?
选项
A、Babies born to wealthy families are heavier.
B、Women living at high altitude tend to give birth to underweight babies.
C、Newborns in cities are lighter than average.
D、Low-altitude babies have a high risk of heart disease in later life.
答案
B
解析
题干问新的研究发现是什么。由第一段第一句“Women who live...tend to give birthto underweight babies...”可知,一项新的研究发现:居住在高海拔地区的女性易生出体重不足的婴儿,故选B。
转载请注明原文地址:https://kaotiyun.com/show/lf1d777K
本试题收录于:
职称英语卫生类C级题库职称英语分类
0
职称英语卫生类C级
职称英语
相关试题推荐
Somepeopleholdthatoldpeopleshouldbetakencareathome,whileothersthinktheyshouldbeplacedinoldpeople’shouse.W
Youhaveapart-timejobinabookshop.Themanagerwantstomaketheshopmorepopularamongyoungpeopleandasksyoutowrite
Youarerequiredtowriteanessayabout120wordsonthegiventopic:SmokingIsHazardoustoPeople’sHealth
Readthefollowingpassageandanswerquestions9-18.1.Mostyoungpeopleenjoysomeformsofphysicalactivity.Itmaybewalk
Amulticulturalpersonissomeonewhoisdeeplyconvincedthatallculturesareequallygood.【R1】______Andmostlikelyhehasbe
Imagineaworldwithoutbrands.【R1】______Noraucousadvertising,nouglybillboards,andnoMcDonald’s.Yet,givenachanceand
Somepeoplebelievethatinternationalsportcreatesgoodwillbetweenthenationsandthatifcountriesplaygamestogetherthey
PrivacyWorryMayKeepHIVPatientsfromTherapyPatientsinfectedwithHIVareoftenconcernedabouttheconfidentialityofthe
HealthInsurance(保险)MostAmericansareresponsiblefortheirownmedicalcosts.Thesecanbeextremelyhighifapersonge
HealthInsurance(保险)MostAmericansareresponsiblefortheirownmedicalcosts.Thesecanbeextremelyhighifapersonge
随机试题
①法制社会的法治政府决不能________,不要超越政府职能,去干政府管不了管不好不必管的事。②离开了实践,科学研究就成了无源之水,_________。③这可是她的弱项,她嘴巴笨,舌战既扬不了长也避不了短,只好笨鸟先飞,暗暗地遣词造句,______
耐高温、耐湿的诊疗器械、器具和物品的灭菌方法应首选
关于吞咽障碍一口量的说法错误的是
等渗性脱水伴酸中毒的患者,在补充等渗盐水和碱性溶液,纠正脱水酸中毒后需注意可能发生
企业现金管理的目标是()的平衡。
将备份的数据使用会计软件恢复到计算机硬盘上的过程称为数据还原。()
在权利的时代,人们通过明确____各种权利(特别是私有财产权和生命权利),并且给予法律上的承认,就能有效地形成对权力的限制。现代社会的政治进步关键就表现在权利限制权力。但是,权力问题很快就____,人们发现在权利背后同样隐藏着权力,权力仍然是幕后决策人。依
在课堂教学中,教师有意识地收集和分析教与学的状况,并作出相应反应的教学行为是()。
与依从相比,认同更深入一层,它不受外界压力控制,行为具有一定的()
The(72)isacollectionofmodulesservingasinterfacebetweenhardwareandsoftwaretoprovideasoftwareplatform.
最新回复
(
0
)