NPR1 and allergic asthma: In the mouse model of asthma, C57BL/6 wild type, NPRA-/- and NPRC-/- knockout mice were sensitized intraperitoneally (i.p.)with ovalbumin (OVA), the allergen used in the mouse model of allergic asthma, and then challenged with OVA intranasally (i.n.).