Maybe, suggests new research published in the January issue of the American Journal of Respiratory and Critical Care Medicine that found adult-onset asthma risk was reduced by 22 percent in men who were already taking a daily aspirin for heart-disease prevention.

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"Our findings suggest that low-dose aspirin may have beneficial effects on asthma," said study co-author Dr Tobias Kurth, an assistant professor of medicine and an associate epidemiologist in the division of ageing at Brigham and Women's Hospital in Boston.

The incidence of asthma has been rising in recent years, according to background information in the study. And that rise coincides with the decreased use of aspirin as people have switched to other over-the-counter pain relievers, or avoided aspirin use in children due to concerns about Reyes syndrome. That led some researchers to wonder if the reduction in aspirin use was contributing to the rise of asthma.

To test that hypothesis, Kurth and his colleagues reviewed data from the Physicians' Health Study, which began in 1982. They included data from 22 071 male physicians between the ages of 40 and 84. The physicians were randomly assigned to receive either a daily dose of 325 milligrams of aspirin or a placebo. The original aim of the research was to study aspirin's role in heart-disease prevention.

Kurth said the researchers weren't able to study the reasons why aspirin might have this preventive effect against asthma, but theorised that aspirin's anti-inflammatory effects might play a role.

He did caution, however, that for some people who already have asthma, aspirin can be an irritant that can actually trigger asthma symptoms.

Dr Rick Vinuya, an allergist and immunologist at Providence Hospital and Medical Centre in Southfield, Michigan, echoed Kurth's comments.

"Any time you have an intervention to prevent the onset of disease, it's exciting, and a 22 percent reduction in risk is huge. But, that excitement is tempered because this is not a cause-and-effect study, but an epidemiological one. This study needs to be followed up with a study specifically designed to answer whether aspirin really does have an affect and how does it work?"

Right now, Vinuya said, no one should start taking aspirin to prevent asthma. "This study adds on to the beneficial effects of aspirin. It's a healthy practice to take aspirin to prevent heart attacks and now it looks as if a secondary benefit is a possible decrease in the development of asthma. But, asthma prevention can't be the primary reason for taking daily aspirin," he said. – (HealthDayNews)

January 2007
 

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