研究表明 吸烟会损害胎儿肝脏
The impact of cigarette damage to unborn babies has been revealed in a new stem cell study. Scientists found that the cocktail of chemicals in cigarettes is particularly harmful to developing liver cells. They developed a method of studying the effects of maternal smoking on liver tissue using embryonic stem cells. The team, led by the University of Edinburgh, also discovered the cigarette chemicals affect male and female foetuses differently. During their research they used pluripotent stem cells - cells which have the ability to transform into other cell types - to build foetal liver tissue. Liver cells were exposed to the harmful chemicals found in cigarettes, including specific substances known to circulate in foetuses when mothers smoke. The study showed that a chemical cocktail - similar to that found in cigarettes - harmed foetal liver health more than individual components. Dr David from the University of Edinburgh's centre for regenerative medicine, said: "Cigarette smoke is known to have damaging effects on the foetus, yet we lack appropriate tools to study this in a very detailed way. "This new approach means that we now have sources of renewable tissue that will enable us to understand the cellular effect of cigarettes on the unborn foetus." |