Serological analysis of allergic components of house dust mite provides more insight in epidemiological characteristics and clinical symptom development in North China.

In addition, there was an increasing trend of a positive value of Der p 10 with age, while, in contrast, both Der f 1 and Der p 2 decreased with age at first and then rebounded after 46 years of age ( Table 1 ; Figure 5 ). 3.4 The relationship between sIgE of HDM components and allergic symptoms In the relationship between the complexity of allergic symptoms and the allergenic components of HDM, we observed a strong sensitization of Der p 1, Der f 1, Der p 2, and Der f 2 among patients with a single symptom to multiple symptoms compared with other components ( Figure 6A ).

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