The prevalence of asthma keeps on increasing worldwide, especially in western societies over last 40 years. The mechanism of asthma is unclear. Recently, concern about indoor air pollution as a risk factor for asthma has been arisen. In present study, 25 Kun Ming male mice were placed in an air chamber containing respective formaldehyde ( FA) concentration of 0, 0.5, 1.0, 3.0 mg/m(3), and 3.0 mg/m3 with Capsazepine ( CPZ, a specific antagonist of vanilloid receptor)-pretreatment in five testing groups ( n= 5 per group) for inhale experiments. The inhaled groups were exposed to gaseous FA for 6...
