BBC
First-born babies may be programmed in the womb to have a higher risk of asthma and allergy, research suggests. A University of South Carolina led team carried out tests on more than 1,200 newborns from the Isle of Wight. They found first borns were more likely to carry a gene variant which raised their risk of allergy.
The study, to be presented to the American Thoracic Society, found this seemed to translate to a higher risk of allergy through to the age of ten. The researchers measured levels of an antibody called Immunoglobulin E (IgE) in the babies’ umbilical cord blood. This is known to play a key role in the development of allergic responses. Read more
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