The risk of increasing descendants in the "second -hand smoke" environment was exposed during childhood

Researchers from the University of Melbourne and other institutions in Australia have recently published a paper in the European Respiratory Magazine that their father was exposed to the "second -hand smoke" environment for a long time in his childhood, and his children's risk of non -allergic asthma would increase significantly.

On January 7, 2011, a man smoked outdoors in an outdoor area of ​​an Ashkari restaurant in Israel. Xinhua News Agency

According to a recent public bulletin released by the University of Melbourne, Australia, this study uses data from the "Tasmania vertical health research". It is a large -scale research on respiratory diseases launched in Tasmania, Australia in 1968 Essence

In this new study, the research team analyzed the children who grew up in Tasmania and the health and living habits of their father and grandparents. Researchers compare whether these children suffer from asthma at the age of 7 to compare whether their father grew up before the age of 15 to a smoking family. The analysis of the data also includes whether these children's father smoke or whether he has been a smoker now. Wait.

Studies have found that if the father is exposed to the "second -hand smoke" environment in childhood, the risk of children with non -allergic asthma will increase by 59%. If his father was exposed to the "second -hand smoke" environment for a long time and later became a smoker, the risk of children with non -allergic asthma would be higher.

Studies have shown that smoking not only harms the health of smokers, but also tobacco smoke may even affect the health of the descendants of the smokers. Researchers said that it is not sure how this health impact occurs for intergenerational transmission, but it is likely to be related to epigenetic genetic changes.

One of the author of the thesis, Dr. Pei Ting, a senior researcher at the University of Melbourne, introduced in an interview with Xinhua News Agency reporters that apparent genetic changes will affect gene activity and expression. Read the way of DNA sequence. The development of male reproductive cells continues to adolescence. Long -term contact with tobacco smoke during the development stage may lead to an apparent genetic change in male reproductive cells. This change may be inherited to the next generation and may affect the next generation of health, including improving the risk of asthma. (Reporter Hao Yalin Liu Shiyue)

(Source: Xinhua News Agency client)

【Edit: Fu Sakura】

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