Asthma

被引:183
作者
Tattersfield, AE
Knox, AJ
Britton, JR
Hall, IP
机构
[1] City Hosp, Div Resp Med, Nottingham NG5 1PB, England
[2] Univ Hosp, Queens Med Ctr, Div Therapeut, Nottingham, England
关键词
D O I
10.1016/S0140-6736(02)11312-2
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Asthma is one of the commonest chronic diseases of affluent societies. The striking increase in prevalence of asthma over recent decades and the rarity of this disease in less affluent populations confirms the importance of environmental factors in the cause of asthma-although which environmental factors are responsible is still not clear. Family studies show that genetic factors are also important in determining individual susceptibility to asthma, with results of genetic studies suggesting that there are many genes with moderate effects rather than a few major genes. Asthmatic airways show inflammation and remodelling, with CD4+ helper cells, mast cells, and eosinophils characterising the inflammatory response. Inhaled corticosteroids remain the cornerstone of treatment with the addition of long-acting beta agonists as the next step if symptoms continue. Leukotriene antagonists, the only new drugs to reach the market in the past decade, have modest effects. However, a better understanding of the mechanisms underlying asthma and the genetic and environmental factors that predispose individuals to asthma should lead to better preventative strategies and new therapeutic approaches.
引用
收藏
页码:1313 / 1322
页数:10
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