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Allergic asthma is commonly stimulated by animal dander, particularly cat dander, with inflammation of the airways maintained by continuous exposure to cats. This chronic inflammation causes restriction to lung function, which was previously difficult to diagnose clinically and with peak flow meters, and can lead to an asthma attack. Now scientists have produced a computed technology (CT) imaging method to visualize the effect that cat dander has on lung function, particularly after all clinical signs have disappeared. Studies have also shown that although homes may be pet free, houses whose previous owners had pets can still retain animal allergens. With rates of respiratory diseases increasing, including asthma, experts are attempting to further understand the pathology and effect of these conditions on the lungs.
Source: summary of medical news story as reported by Scripps Howard News Service
About: A special CT scan to image asthma effects
Date: 6 December 2005
Source: Scripps Howard News Service
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