E Kamali-Sarvestani et al.
Journal of investigational allergology & clinical immunology, 17(6), 361-366 (2007-12-20)
Both tumor necrosis factor alpha (TNF-alpha) and interleukin (IL) 4 have been implicated in the pathogenesis of asthma. Furthermore, a G/A substitution at position -308 of the TNF-alpha gene promoter and a C/T substitution at position -589 of the IL-4