GSTs, including the isoforms GSTP1, GSTM1, and GSTT1, are multifunctional enzymes for cellular detoxification and are involved in oxidative stress pathways, among others, in the lung [122], and are associated, among others, with asthma and wheezing in children exposed to PTS or SHS [17,18]. The gene discussed is GSTP1; the disease is asthma.