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研究发现孕妇压力会转移给胎儿
2008-05-30
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研究发现：孕妇压力会转移给胎儿
英国《金融时报》丽贝卡•奈特(Rebecca Knight)报道
2008年5月26日 星期一
美国哈佛医学院(Harvard Medical School)的一项研究显示，孕期焦虑的女性可能会将压力转移给胎儿，表现形式是胎儿对过敏原更加敏感，或许将来会有患哮喘的危险。
在这项研究中，研究人员分析了母亲的压力水平和孕期在家中与尘螨过敏原接触的水平，将这些数据与近400名婴儿的脐血IgE值进行比较。脐血IgE值是衡量儿童出生时免疫反应的指标。
研究人员发现，如果母亲承受较高水平的压力，即便在孕期很少接触尘螨，其婴儿的脐血IgE值也会提高。
该研究项目的牵头人罗莎琳德•莱特(Rosalind Wright)表示，已有越来越多证据表明，母亲的压力——例如由经济问题或夫妻关系问题引起的——和孩子正在发育的免疫系统中的变化有关，甚至在孕期内；该项研究又提供了新的证据。
她表示：“这进一步支持了一种观点，即压力可能被视为社会污染物，一旦‘吸'入身体，可能会影响身体的免疫反应，与过敏原等物理污染物的影响类似，从而增强它们的影响效果。”
译者/管婧
阅读本文章英文,请点击 Baby absorbs mother's stress
Baby absorbs mother's stress
By Rebecca Knight
Monday, May 26, 2008
Women who are anxious during pregnancy may pass some stress on to their foetuses, in the form of increased sensitivity to allergen exposure and perhaps future asthma risk, according to a study from Harvard Medical School.
In the study, researchers analysed levels of maternal stress and mother's exposure to dust mite allergen in their homes while pregnant. These were compared with cord blood IgE expression – a marker of the child's immune response at birth – in nearly 400 infants.
They found raised levels of IgE expression in cord blood among babies whose mothers experienced higher level stress even when exposed to fairly low levels of dust mite during pregnancy.
Rosalind Wright, who led the study, said the research added to a growing body of evidence that connected maternal stress – such as that precipitated by financial problems or relationship issues – to changes in children's developing immune systems, even in pregnancy.
“This further supports the notion that stress can be thought of as a social pollutant that, when ‘breathed' into the body, may influence the body's immune response similar to the effects of physical pollutants like allergens, thus adding to their effects,” she said.
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