[Phenological characteristics of airborne pollen and its relationship with meteorological factors in Haidian District, Beijing, China during the period of 2012-2016].

We monitored the type and content of airborne pollen in Haidian District, Beijing City from 2012 to 2016 by the gravity precipitation method, and analyzed the variety of pollen, peak distribution features and changes of its content, and discontinuous variation of concentration. Multiple time scale analysis was carried out for pollen concentration by the ensemble empirical mode decomposition method (EEMD). The relationship between pollen concentration and meteorological factors was analyzed.

Incidence of allergic rhinitis and meteorological variables: Non-linear correlation and non-linear regression analysis based on Yunqi theory of chinese medicine.

Objective: To analyze the correlations between the incidence of allergic rhinitis (AR) and meteorological variables of previous periods, so as to establish non-linear prediction equations of AR in Beijing area.

Methods: AR patients (10,478 cases) collected from Beijing Tongren Hospital during 2007-2010 and meteorological data (including daily average temperature, daily maximum temperature, daily minimum temperature, daily relative humidity, daily average vapor pressure, daily dew point temperature, daily precipitation, daily average wind speed, sea level pressure, and degree of comfort) collected from Beijing Municipal Meteorological Observatory in the same periods were used for the analysis. Non-linear correlation and regression were adopted to analyze the relationship between AR incidence and meteorological variables of former six-qi stage which was defined according to Yunqi theory of Chinese medicine.

[Grading forecast research for pathogenesis of allergic rhinitis directed by meteorological elements].

Objective: To analyze the correlation between meteorological factors and onset of allergic rhinitis (AR), and to establish the prediction of AR epideminlogical trend.

Methods: According to skin prick test (SPT) data of AR from Beijing Tongren Hospital and meteorological data of Beijing Observatory (2007 -2010) , analyzed the relationship between meteorological factors and onset in patients with AR. To analyze the probability distribution of onset in AR patients, and establish the grade of AR epideminlogical trend index.

[Long-term efficacy of Dermatophagoides pteronyssinus immunotherapy in patients with allergic rhinitis: a 3-year prospective study].

Objective: To evaluate the long-term efficacy of subcutaneous immunotherapy with Dermatophagoides pteronyssinus (DerP) in patients with allergic rhinitis.

Methods: Ninety-two patients with allergic rhinitis to DerP were randomly allocated to receive either specific immunotherapy (n = 46) or medical treatment (n = 46). Symptom and medication scores and skin response to Derp were assessed to evaluate the clinical efficacy in the baseline and after three years treatment.

[Correlation between symptoms of pollen allergic rhinitis and pollen grain spreading in summer and autumn].

Objective: To analyze the correlation between airborne pollen concentrations and symptoms in patients with pollen allergic rhinitis.

Methods: Durhum sampler was used to collect the pollen concentration and species from June to September in 2011. The clinical skin prick test (SPT) data were analyzed.

[Comparative study on cluster and conventional immunotherapy with Dermatophagoides pteronyssinus in patients with allergic rhinitis].

Objective: To compare the efficacy and safety of a 6-week cluster schedule of specific immunotherapy with that of a 14-week conventional schedule for the treatment of subjects with persistent allergic rhinitis (AR).

Methods: The trial was a prospective and randomized study involving 80 patients with persistent AR, who were allergic to Dermatophagoides pteronyssinus. While 40 patients were randomly assigned to the cluster schedule reaching the maintenance dose within 6 weeks, the other 40 patients were randomly assigned to the conventional schedule reaching the maintenance dose within 14 weeks.

[Clinical efficacy and immunological changes in children with allergic rhinitis receiving specific immunotherapy with Dermatophagoides pteronyssinus].

Objective: To evaluate the efficacy and immunological changes of children receiving subcutaneous immunotherapy with Dermatophagoides pteronyssinus.

Methods: Sixty-four children with allergic rhinitis to Dermatophagoides pteronyssinus (Der p) were randomly allocated to receive either specific immunotherapy (n = 32) or medical treatment (n = 32). Symptom and medication scores were assessed to evaluate the clinical efficacy in the baseline and after one year treatment.