By the end of 2005, 25 genes had been associated with asthma in six or more separate populations, including GSTM1, IL10, CTLA-4, SPINK5, LTC4S, IL4R and ADAM33, among others.
Do konce roku 2005 byla prokázána souvislost s astmatem u 25 genů, mimo jiné GSTM1, IL10,CTLA-4, SPINK5,LTC4S, IL4R a ADAM33, a to v šesti či více samostatných populacích.