Carriers ofFLG gene mutations associated with loss of filaggrin functionhave an increased risk of developing atopic dermatitis(Sandilands et al., 2007) and bronchial asthma in the contextof atopic dermatitis, while at the same time the risk of asthmawithout atopic dermatitis is reduced (Palmer et al., 2006). This evidence concerns the gene FLG and atopic eczema.