Investigation of allergens in patients with asthma and allergic rhinitis in Xinjiang

Objective: To explore the distribution of allergens in patients with asthma and allergic rhinitis and provide data for the new therapeutic policies of allergic diseases.Methods: Six humdred and sixty seven cases with asthma or/and allergic rhinitis were tested with IVT(specific allergen test) to analyze TIgE and serum-specific IgE(sIgE).Results:All subjects were observed by IVT701,the positive rates of TIgE and sIgE were 97.6%(651/667) and 70.9%(473/667).The positive rates of artemisia,trees(elm,poplar and willow),ragweed,house dust,mites and fungi were 31.5%,22.0%,20.1%,13.5%,12.6% and 12.4%,respectively.Two hundred and fifty four cases out of 667 subjects were tested by IVT702.The positive rates of TIgE and sIgE were 94.5%(240/254) and 77.6%(197/254),The positive rates of peanut and beans,cod fish,crab and shrimp,eggs were 21.7%,17.7%,16.9%,11.8%,respectively.Among 361 subjects with asthma(73 concomitant allergic rhinitis),the positive rates of TIgE and sIgE were 98.6% and 67.0%.Of 306 subjects with allergic rhinitis,the positive rates of TIgE and sIgE were 97.8% and 75.5%.Conclusion: The major allergens in the patients with allergic rhinitis and asthma in Xinjiang are artemisia pollen 31.5%,trees 22% and ragweed 20.1%.The positive rates of mites and fungi were significantly lower than those in other areas of China.Avoid allergens is important.Immunotherapy can not only prevent the occurrence of allergic rhinitis and asthma,but avoid rhinitis to asthma.