[The advances of allergen component detection in IgE-mediated food allergy].

There are many types in food allergy, and the most common is mediated by IgE. Currently, the diagnosis of food allergy mainly relied on skin prick test and serum specific IgE of allergen extract, which can not identify cross-sensitization. Component-resolved diagnosis (CRD) can identify the major allergen components and cross-components of food allergens, which plays an important role in dietary guidance, prognosis monitoring and diagnosis of special types of IgE-mediated food allergy. This article enumerates clinical characteristics of the IgE-mediated common food allergies, such as milk, egg and seafood allergy, and special type of food allergy, such as cat pork syndrome, oral allergy syndrome, α-gal syndrome and food-dependent exercise-induced anaphylaxis, summarizes the advances of CRD in these types of IgE-mediated food allergy, in order to provide an evidence for the diagnosis, treatment and prevention of IgE-mediated food allergy.

[Brief analysis on the current status of medical education and specialty of allergy in China and abroad and the strategies for the development of allergology in China].

The increase in the prevalence of allergic diseases has brought a substantial medical, social and economic burden. The development of allergology is relatively lag behind the allergy prevalence in China. Both the numbers of allergy specialty and allergist are scarce and thus the diagnosis and treatment of allergic disease does not meet the needs of allergy patients. This article summarizes the status of medical education and specialty development of allergology in China and abroad. In addition, the key strategies for promoting the development of allergy education and specialty were discussed, including undergraduate and graduate education of allergology, the orientation of allergy specialty and related specialty/subspecialty, the integration of allergology into the standardized residents training system, training and certification of allergists, and multidisciplinary diagnosis and treatment model.

[Expression of galectin-13 in allergic diseases involving airway, skin and mucous membranes].

To detect the expression of galectin-13 in allergic diseases and provide a new way for the diagnosis and treatment of allergic diseases. A retrospective analysis method was used to screen 216 patients with allergic diseases with house dust mites or aspergillus as allergens who visited the Department of Allergy and Department of Respiratory of Tongji Hospital attached Tongji Medical College, Huazhong University of Science and Technology from March 2018 to May 2021. These allergic diseases included allergic asthma, allergic bronchopulmonary aspergillosis, allergic rhinitis, allergic conjunctivitis, atopic dermatitis, allergic urticaria. 25 subjects without underlying diseases were selected as healthy controls. The galectin-13 content in serum in each group were detected, and the Pearson correlation was used to determine the correlation between the galectin-13 content in serum in each group and blood eosinophil count, blood specific IgE, the score scale of allergic disease. The expression of Galectin-13 was increased in allergic asthma group (71.44±39.44) pg/ml, allergic bronchopulmonary aspergillosis group (100.10±47.62) pg/ml, allergic rhinitis group (54.11±24.81) pg/ml and dermatitis group (44.12±19.51) pg/ml. The expression of galectin-13 was not significantly increased in allergic urticaria group (32.75±10.29) pg/ml and the allergic conjunctivitis group (30.55±9.87) pg/ml. The galectin-13 content in serum, was positively correlated with blood eosinophil count(rs=0.54, P<0.001) and house dust mite specific IgE (rs=0.51, P<0.001) in allergic asthma group, and was positively correlated with blood eosinophil count(rs=0.63, P=0.025) and aspergillus fumigatus specific IgE (rs=0.58, P=0.046) in allergic bronchopulmonary aspergillosis group. It was positively correlated with blood eosinophil count (rs=0.52, P=0.000 2) and house dust mite specific IgE (rs=0.41, P=0.005) in allergic rhinitis group. In allergic conjunctivitis group, the expression of galectin-13 was positively correlated with conjunctivitis symptom score (rs=0.47, P=0.048). In atopic dermatitis group, the expression of galectin-13 was positively correlated with blood eosinophil count (rs=0.58, P<0.001) and house dust mite specificity IgE (rs=0.47, P=0.002). In allergic urticaria group, the expression of galectin-13 was not significantly correlated with blood eosinophil count or house dust mite specific IgE. Galectin-13 may be related to the occurrence and progress of allergic diseases and may be involved in the occurrence of eosinophilic inflammation.

[Airborne pollens in Wuhan urban area and its correlation with hospital visits of allergic rhinitis patients from 2017 to 2018].

Objective: To investigate the species and concentrations of airborne pollens in Wuhan urban area and their correlation with the number of visits of allergic rhinitis patients. Methods: Retrospective analysis of pollen dispersal characteristics and the number of patients with allergic rhinitis presenting to Tongji Hospital of Huazhong University of Science and Technology in Wuhan city from October 2017 to September 2018, as well as pollen allergen testing results of patients with allergic rhinitis presenting to the Department of Allergy during the same period. Pollen data was collected by a 1-year air sampling conducted in Wuhan City during the same period using the volumetric method. The samples were examined microscopically to identify airborne pollen species and counted, and the concentrations of various pollens were calculated. Information on patients with allergic rhinitis who came to the hospital during the same period was collected, and the correlation between pollen concentration and the number of patient visits was statistically analyzed using Pearson correlation analysis. Results: A total of 35 types of airborne pollen were collected from October 2017 to September 2018. The dominant pollens in spring were Moraceae (68.46%, 1 042/1 522), Pendula (12.22%, 186/1 522) and Cupressaceae (2.30%, 35/1 522); in summer and autumn, the dominant pollens were Artemisia (3.81%, 58/1 522), Humulus (4.01%, 61/1 522) and Ambrosia (0.59%, 9/1 522). The peak number of visits for allergic rhinitis patients occurred in March-April and July-September, both exceeding 2 200 visits and reaching a maximum of 2 545 visits. There was a very weak correlation between the number of visits and the total pollen concentration (r=0.17, P=0.001). The average monthly pollen skin prick test positive rate of patients with allergic rhinitis was highest in March-May, exceeding 40% with a maximum of 45.73%, and there was a significant correlation between the positive pollen skin prick test positive rate and the average monthly pollen concentration (r=0.62, P=0.031). Conclusions: Pollen species and concentrations fluctuated continuously with time in Wuhan urban area, with peak pollen dispersal in spring from March to April and in autumn from August to September. The number of visits to patients with allergic rhinitis and the positive pollen skin prick test positive rate increased accordingly during the peak pollen concentration periods.

[Efficacy and safety of immunotherapy in dust mites andalternaria multi-sensitized allergic rhinitis patients].

Objective:The aim of this study is to evaluate the efficacy and safety of immunosuppression in patients with allergic rhinitis with multiple sensitization of dust mites and Alternaria.Method:An open, label random parallel controlled clinical study was conducted. Sixty dust mites and alternaria multi-sensitized allergic rhinitis patients were enrolled and randomized into immunotherapy group and medication group.Evaluation indicators included symptom scores, medication scores,symptom medication combined scores,RQLQ and serum allergen-specific IgE.In immunotherapy group, side effects were also observed and recorded.Result:After 24 months of treatment, all the scores were significantly lower than baseline,in both immunotherapy group and medication group.The scores of immunotherapy group were significantly lower than those of the medication group. Only local side effects were observed in immunotherapy group,without any systemic side effects and anaphylaxis.Conclusion: Mixed immunotherapy with dust mites and alternaria was effective and safe in allergic rhinitis patients and it had better curative effect than medication.

[Recent and long-term hearing outcomes in the cases after open tympanoplasty using titanium ossicular prosthesis].

Objective:To analyze recent and long-term hearing outcomes of the patients with chronic otitis media after open tympanoplasty using titanium ossicular prosthesis. Method:Retrospectively analyzed total 84 cases after open tympanoplaty with titanium ossicular prosthesis. The hearing outcomes before and after surgery(6 months and 24 months) were compared. Result:The hearing levels in the cases were improved to different degrees after surgery.Significant differences were showed compared the average pure tone threshold/air bone gap before surgery with the average recent/long-term outcomes after surgery(P<0.01),and no significant difference could be found compared the recent and long-term outcomes after surgery. Conclusion:Hearing level could be improved in the patients after open tympanoplasty using titianium ossicular prosthesis,and the long-term outcome could be steady.