Autumn-born babies 'more likely to get asthma'.Byline: ANI Washington, Nov 22 (ANI): Infants born in the autumn season are at a greater risk of developing childhood asthma, according to according to prep. 1. As stated or indicated by; on the authority of: according to historians. 2. In keeping with: according to instructions. 3. a new study. The new research from Vanderbilt University Vanderbilt University, at Nashville, Tenn.; coeducational; chartered 1872 as Central Univ. of Methodist Episcopal Church, founded and renamed 1873, opened 1875 through a gift from Cornelius Vanderbilt. Until 1914 it operated under the auspices of the Methodist Church. has found that while having clinically significant bronchiolitis Bronchiolitis Definition Bronchiolitis is an acute viral infection of the small air passages of the lungs called the bronchioles. Description Bronchiolitis is extremely common. at any age during infancy was associated with an increased risk of childhood asthma, for autumn babies, that risk was the greatest. "Infant age at the winter virus peak following birth independently predicts asthma development, with the highest risk being for infants born approximately four months prior to the peak, which is represented by birth in the fall months in the Northern hemisphere," said Tina V. Hartert, M.D., M.P.H., associate professor of medicine and director of the center for Asthma Research at Vanderbilt University, and principal investigator of the study. "Birth during this time conferred a nearly 30 percent increase in odds of developing asthma," she added. The study analysed the birth and medical records of more than 95,000 children and their mothers in Tennessee to determine whether date of birth in relationship to the peak in winter respiratory viruses posed a higher risk for developing early childhood asthma. The researchers suggest two non-mutually exclusive possible reasons for the link, one, that there is a genetic susceptibility common to both bronchiolitis and the development of asthma and the other that an environmental exposure such as winter viral infection viral infection, n an infection by a pathogenic virus. A virus acts on the cell nucleus, taking over the genetic material within the nucleus and replicating itself. causes asthma. "The risk of progressing from bronchiolitis to asthma is almost certainly influenced by genetic factors," wrote Dr. Hartert. "However, if this association were due only to genetic factors, there would be a seasonal effect on infection but not on asthma...Instead we have shown that there is variation in the risk of developing asthma by the timing of birth in relationship to the winter virus peak for each year studied. "This supports a causal relationship of childhood asthma with the winter virus peak after birth," she added. The research was published in the first issue for December of the American Journal of Respiratory and Critical Care Medicine, a publication of the American Thoracic Society. (ANI) Copyright 2008 Asian News International The Asian News International (ANI) agency provides multimedia news to China and 50 bureaus in India. It covers virtually all of South Asia since its foundation and presently claims, on its official website, to be the leading South Asia-wide news agency. (ANI) - All Rights Reserved. Provided by Syndigate.info an Albawaba.com company |
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