ADAM33 and asthma: Shufen Zhu et al. analysed the single nucleotide polymorphisms (SNPs) in the T1, T2 and V4 loci of the ADAM33 gene and found that polymorphisms in the T1 locus were significantly associated with asthma risk in both Mongolian and Han ethnicities and that polymorphisms in the V4 locus were relevant only in the Mongolian patients [25].