TRPA1 and respiratory system disorder: Transient receptor potential ankyrin 1 (TRPA1) is of special attention and interest for being the most nonselective permeable Ca2+ channels in the transient receptor potential cation channels superfamily and plays an important role in oxidative stress, apoptosis, and inflammation of respiratory disorders [23–25], cardiovascular diseases [26], chronic arthritis [27], retinal damage [28] diabetes, and obesity [29], and parts of its antagonists were used as an novel treatments for these disease [24, 25].