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Black Teens With Severe Asthma Are Three Times More Likely Than White Teens To Be Steroid Resistant

Date:
July 22, 1998
Source:
National Jewish Medical And Research Center
Summary:
Black teen-agers are three times more likely than white teen-agers to have steroid resistant asthma, research at National Jewish Medical and Research Center has found.

DENVER- Black teen-agers are three times more likely than white teen-agers to have steroid resistant asthma, research at National Jewish Medical and Research Center has found.

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“Our results suggest that children with steroid-resistant asthma are more likely to be African-American, to have required treatment with oral steroids at an earlier age and to require larger amounts of oral steroids for only marginal control of their asthma,” said Joseph Spahn, M.D., a pediatric allergist and director of the Immunopharmacology Lab at National Jewish.

Other recent epidemiological studies have shown that blacks with asthma are sicker and have a higher mortality rate than whites with asthma.

Doctors at National Jewish now are trying to determine whether blacks have a more vigorous immune response to airway inflammation--which means that higher doses of steroids must be used to control inflammation--or a poor response to steroids secondary to a genetic resistance to the drugs.

“The theory is that with ongoing airway inflammation you get worsening asthma and diminished steroid sensitivity,” Dr. Spahn said.

This study of 164 teen-agers treated at National Jewish also showed that 25 percent of the group was steroid resistant. Children with less than a 15 percent improvement in lung function following a “burst” of inhaled steroids--high doses over seven days--were considered steroid resistant.

“Twenty-five percent of the kids admitted to National Jewish have steroid-resistant asthma, which is much greater than anyone thought,” Dr. Spahn said.

It has been estimated that only one-tenth of a percent of the 15 million people in the United States with asthma are steroid resistant. About 5 million children in the United States have asthma.The study, published in the Journal of Allergy and Clinical Immunology, is the first to examine steroid-resistant asthma in children.

A person with steroid-resistant asthma receives limited reduction in airway inflammation and swelling following treatment with oral steroids. Inhaled steroids are one of the main ways that asthma is controlled.

“Asthma can be a progressive disease,” Dr. Spahn said. “It’s really important to take medication even when you’re feeling well.”


Story Source:

The above story is based on materials provided by National Jewish Medical And Research Center. Note: Materials may be edited for content and length.


Cite This Page:

National Jewish Medical And Research Center. "Black Teens With Severe Asthma Are Three Times More Likely Than White Teens To Be Steroid Resistant." ScienceDaily. ScienceDaily, 22 July 1998. <www.sciencedaily.com/releases/1998/07/980722133303.htm>.
National Jewish Medical And Research Center. (1998, July 22). Black Teens With Severe Asthma Are Three Times More Likely Than White Teens To Be Steroid Resistant. ScienceDaily. Retrieved November 24, 2014 from www.sciencedaily.com/releases/1998/07/980722133303.htm
National Jewish Medical And Research Center. "Black Teens With Severe Asthma Are Three Times More Likely Than White Teens To Be Steroid Resistant." ScienceDaily. www.sciencedaily.com/releases/1998/07/980722133303.htm (accessed November 24, 2014).

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