久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

  .contact us |.about us
News > Lifestyle News ...
Smoking as harmful as drugs to fetus
( 2003-06-04 09:53) (7)

In a discovery that could change the way health officials view smoking during pregnancy, Brown University researchers show nicotine has the same impact on fetuses as cocaine and heroin.

Babies exposed to nicotine during pregnancy were more excitable and tense, the researchers say, and they showed signs of central nervous system and gastrointestinal stress.

The report, published in the June issue of Pediatrics, suggests the infants experienced "neonatal withdrawal" from nicotine, although the finding was not conclusive.

"Because we evaluated the babies at one to two days following birth, we don't know if it's actually withdrawal we're seeing or the effects of [the mother's] cigarette smoking," says study author Karen L. Law, a third-year medical student at Brown.

What's clear is that nicotine may have the same toxic effect as illegal drugs, Law adds. Ideally, the finding might motivate the 18 percent of pregnant women who smoke to quit.

The study compared the behaviors of 27 nicotine-exposed newborns and 29 unexposed newborns 48 hours after birth. The researchers measured the nicotine intake of mothers by asking them how many cigarettes they smoked per day and then verifying their answers by measuring a biological marker of nicotine called cotinine, which is found in saliva.

They found that a mother's cigarette intake correlated with an increase in symptom severity in her newborn.

"The present study is the first to establish that the predictions from animal models are indeed true -- behavioral abnormalities akin to those associated with illicit drugs used during pregnancy, are equally, or perhaps even more, detectable in the offspring of women who smoke during pregnancy," says Theodore Slotkin, a professor of pharmacology and cancer biology at Duke University Medical Center.

"This is an important, even essential, contribution to the field, especially as many of the women in the study were smoking fairly low numbers of cigarettes," he adds.

The results also suggest there may be legal grounds for removing children from mothers who smoke during pregnancy, say the researchers.

Given that nicotine is showing the same effects as an illegal substance for which protective services will remove babies from their mothers, policy makers ought to reconsider how they evaluate a fit mother, writes senior study author Barry Lester, a professor of psychiatry and human behavior at Brown.

"To have these results in which these nicotine-exposed babies have a similar profile as cocaine-addicted infants makes us take a step back and ask what's appropriate behavior during pregnancy. Somehow smoking is still acceptable," Law says. "We need to take a look at why one substance over another is not controlled during pregnancy."

The study did not look at the long-term impact of nicotine exposure during pregnancy, but the researchers say previous studies suggest the impact of smoking on newborns can be mediated if the family provides appropriate attention and care throughout childhood.

Go to another section

E-Mail This Article
Printer-Friendly Format


Today's Top News Top Lifestyle News
Indian prime minister starts landmark visit to China
( 2003-06-23)
Hong Kong may get off SARS list
( 2003-06-23)
Experts: Prepare for the worst floods
( 2003-06-23)
Four Palestinians killed in Gaza
( 2003-06-23)
Lawyers call for amendment of compensation law
( 2003-06-23)
WHO experts visit SARS-hit family in Shanxi
( 2003-06-22)
2,000-year-old liquor discovered in West China
( 2003-06-22)
Mike Tyson arrested in New York brawl
( 2003-06-22)
Five nature reserves set up around Beijing
( 2003-06-22)
Prince William celebrates 21 years
( 2003-06-22)







主站蜘蛛池模板: 深夜做爰性大片很黄很色视频 | 精品国产_亚洲人成在线高清 | 波多野结衣在线免费观看视频 | 国产伦精品一区二区三区无广告 | 大尺度福利视频奶水在线 | 亚洲精品国产免费 | 国产欧美综合一区二区 | 久久久久久久国产a∨ | 一级毛片免费看 | 亚洲国产一区二区在线 | 日本天堂在线视频 | 狠狠色丁香婷婷综合久久片 | 日本成人免费在线 | 九九九九热精品免费视频 | 正在播放国产乱子伦视频 | 亚洲一区浅井舞香在线播放 | 好湿好紧好痛a级是免费视频 | a级毛片在线观看 | 一级做a爰片久久毛片16 | 久久在线资源 | 成 人 黄 色 免费播放 | 中文字幕综合在线 | 欧美一区二区在线观看视频 | 国产精品久久久久久久hd | 国产三级国产精品国产国在线观看 | 在线观看日本污污ww网站 | 日韩精品一区二区三区视频 | 国产成人v爽在线免播放观看 | 久久视频精品线视频在线网站 | 玖玖玖视频在线观看视频6 玖玖影院在线观看 | 国产成人免费午夜性视频 | 久久精品福利视频在线观看 | 波多野吉衣 免费一区 | 青青久草 | 国产不卡精品一区二区三区 | 国产精品久久久亚洲 | 99久在线观看 | 草草在线观看视频 | 手机看片日韩日韩韩 | 日韩影院久久 | 性8sex亚洲区入口 |