http://www.nichd.nih.gov/news/releases/Pages/081913-asthma-smoking.aspx

Dr. Virender Rehan on his study of rats given nicotine during their pregnancies.  (Nicotine is a key component of tobacco smoke, and the researchers gave the substance to the animals to simulate smoking.)  Other studies have shown that children born to women who smoked during pregnancy are more likely to develop asthma than are children born to non-smokers.  In this study of rats as substitutes for pregnant smokers, Dr. Rehan and his colleagues found evidence that the increased risk of asthma was conveyed through generations, to the animals’ grandchildren and even great grandchildren.

Harbor-UCLA Pediatrics

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