Is asthma in the elderly a disease of the peripheral airways?

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Elderly asthmatics have poorer clinical outcomes compared with younger asthmatics. The reasons for this are unclear but may involve age-related changes in the disease itself. In this project we aim to show that asthma in the elderly is dominated by abnormalities of very small peripheral airways, in contrast to younger patients where the abnormalities occur in larger airways. The results will provide the basis for new and better targeted treatment strategies for asthma in the elderly.