Objective:This study aim to explore the distribution patterns of inhalant allergen specific immunoglobulin E(sIgE) positive rates in children with respiratory diseases and its correlation with clinical characteristics, so as to provide reference basis for the prevention and diagnosis of respiratory diseases in children.Methods:A cross-sectional retrospective study was conducted using clinical data from 3 574 children with respiratory tract infections and allergic diseases attending Hunan Children′s Hospital from August 2022 to August 2024.The χ 2 test or Fisher′s test was used for statistical analysis to compare the distribution characteristics of inhaled allergen positive rates among children across different ages, genders, seasons, and diseases. The correlation between allergens and clinical features was analyzed. Results:Of the 3 574 children, 51.4%(1 838) were positive for at least 1 inhalant allergen sIgE, with house dust mite, dust mite, and house dust being the most common allergens with top 3 positive rates. The children had a single sensitization rate of 17.9%(329/1 838) and a multiple sensitization rate of 82.1%(1 509/1 838), with a predominance of two (31.6%, 580/1 838) and three (30.6%, 562/1 838) positive allergens. The total positive rate of allergen sIgE for children in the adolescent group was 70.1%(103/147), higher than that in children in the infant group 24.9%(122/489), the preschool group 49.0%(818/1 669), and the school-age group 62.6%(795/1 269)(all P<0.001). The positive rate of allergen sIgE increased gradually with age (χ 2 trend value=93.70, P<0.001). The overall positive rate of allergen sIgE was higher in male children 52.6%(1 157/2 199) than in female children 49.0%(673/1 375)(χ 2=5.95, P<0.05). The allergic rhinitis subgroup had the highest sIgE positive rate of 60.3%(152/252), followed by the 54.9%(123/224) from the allergic rhinitis with asthma subgroup, and the 52.6%(1 142/2 173) from the asthma subgroup. These differences were statistically significant (χ 2=9.87, P<0.05). The allergen sIgE positive rate of the children was the highest in summer, with 57.8%(786/1 360), and the lowest in winter, with 42.1%(215/511). The difference between the different seasons was statistically significant (χ 2=58.20, P<0.001). Spearman correlation analysis found that the number of positive species of allergens was positively correlated with the sIgE levels ( r=0.51, P<0.001), and there was a positive correlation between sIgE levels of house dust mites and dust mites ( r=0.88, P<0.01). Conclusions:The main allergens of respiratory diseases in children are house dust mite and dust mite. The positive rate of allergen sIgE increases with age, is higher in males than females, has the highest rate of sensitization in summer, and is easy to be multiple sensitized. Early sIgE screening is recommended to guide the prevention and diagnosis of the disease for children.

Objective To investigate the prevalence of specific IgE antibodies against Alternaria alternata and Aspergillus fumigatus in serum samples from clinical allergy patients across selected provinces in China.Methods Data on specific IgE antibodies for Alternaria A.and Aspergillus F.were collected from 20 hospital laboratories in 17 cities spanning 11 provinces.The study analyzed the levels of specific IgE and their variations across different provinces and seasons.Results A total of 27 471 cases of Alternaria A.and 32 843 cases of Aspergillus F.specific IgE data were included.The national average positive rate of Alternaria A.IgE was 10.40%,with the highest rate of 22.68%in Jiangsu and the lowest rate of 2.06%in Guangxi.For Aspergillus F.specific IgE,the average positive rate was 4.24%,with Hubei province having the highest rate(7.25%)and Hunan province the lowest(1.23%).The difference in IgE levels for both Alternaria A.and Aspergillus F.among provinces were statistically significant(H=9 955,16 993,all P<0.0001).Among patients,5.85%had Alternaria A.specific IgE levels at grade 3 or above,while only 0.57%had Aspergillus F.specific IgE levels at this level.When examining seasonal variations using data from Liaoning,Hunan and Anhui provinces,significant seasonal changes were observed for both Alternaria A.and Aspergillus F.IgE antibodies(HAlternaria A=347.6,338.0,401.3,HAspergillus F=196.6,133.7,231.7,all P<0.0001).Conclusion The sensitization to Alternaria A.and Aspergillus F.exhibits distinct geographical characteristics and vary significantly with seasons.Given the relatively high IgE levels associated with Alternaria A.,it should be given adequate clinical attention.

Objective To investigate the prevalence of specific IgE antibodies against Alternaria alternata and Aspergillus fumigatus in serum samples from clinical allergy patients across selected provinces in China.Methods Data on specific IgE antibodies for Alternaria A.and Aspergillus F.were collected from 20 hospital laboratories in 17 cities spanning 11 provinces.The study analyzed the levels of specific IgE and their variations across different provinces and seasons.Results A total of 27 471 cases of Alternaria A.and 32 843 cases of Aspergillus F.specific IgE data were included.The national average positive rate of Alternaria A.IgE was 10.40%,with the highest rate of 22.68%in Jiangsu and the lowest rate of 2.06%in Guangxi.For Aspergillus F.specific IgE,the average positive rate was 4.24%,with Hubei province having the highest rate(7.25%)and Hunan province the lowest(1.23%).The difference in IgE levels for both Alternaria A.and Aspergillus F.among provinces were statistically significant(H=9 955,16 993,all P<0.0001).Among patients,5.85%had Alternaria A.specific IgE levels at grade 3 or above,while only 0.57%had Aspergillus F.specific IgE levels at this level.When examining seasonal variations using data from Liaoning,Hunan and Anhui provinces,significant seasonal changes were observed for both Alternaria A.and Aspergillus F.IgE antibodies(HAlternaria A=347.6,338.0,401.3,HAspergillus F=196.6,133.7,231.7,all P<0.0001).Conclusion The sensitization to Alternaria A.and Aspergillus F.exhibits distinct geographical characteristics and vary significantly with seasons.Given the relatively high IgE levels associated with Alternaria A.,it should be given adequate clinical attention.

Objective:This study aim to explore the distribution patterns of inhalant allergen specific immunoglobulin E(sIgE) positive rates in children with respiratory diseases and its correlation with clinical characteristics, so as to provide reference basis for the prevention and diagnosis of respiratory diseases in children.Methods:A cross-sectional retrospective study was conducted using clinical data from 3 574 children with respiratory tract infections and allergic diseases attending Hunan Children′s Hospital from August 2022 to August 2024.The χ 2 test or Fisher′s test was used for statistical analysis to compare the distribution characteristics of inhaled allergen positive rates among children across different ages, genders, seasons, and diseases. The correlation between allergens and clinical features was analyzed. Results:Of the 3 574 children, 51.4%(1 838) were positive for at least 1 inhalant allergen sIgE, with house dust mite, dust mite, and house dust being the most common allergens with top 3 positive rates. The children had a single sensitization rate of 17.9%(329/1 838) and a multiple sensitization rate of 82.1%(1 509/1 838), with a predominance of two (31.6%, 580/1 838) and three (30.6%, 562/1 838) positive allergens. The total positive rate of allergen sIgE for children in the adolescent group was 70.1%(103/147), higher than that in children in the infant group 24.9%(122/489), the preschool group 49.0%(818/1 669), and the school-age group 62.6%(795/1 269)(all P<0.001). The positive rate of allergen sIgE increased gradually with age (χ 2 trend value=93.70, P<0.001). The overall positive rate of allergen sIgE was higher in male children 52.6%(1 157/2 199) than in female children 49.0%(673/1 375)(χ 2=5.95, P<0.05). The allergic rhinitis subgroup had the highest sIgE positive rate of 60.3%(152/252), followed by the 54.9%(123/224) from the allergic rhinitis with asthma subgroup, and the 52.6%(1 142/2 173) from the asthma subgroup. These differences were statistically significant (χ 2=9.87, P<0.05). The allergen sIgE positive rate of the children was the highest in summer, with 57.8%(786/1 360), and the lowest in winter, with 42.1%(215/511). The difference between the different seasons was statistically significant (χ 2=58.20, P<0.001). Spearman correlation analysis found that the number of positive species of allergens was positively correlated with the sIgE levels ( r=0.51, P<0.001), and there was a positive correlation between sIgE levels of house dust mites and dust mites ( r=0.88, P<0.01). Conclusions:The main allergens of respiratory diseases in children are house dust mite and dust mite. The positive rate of allergen sIgE increases with age, is higher in males than females, has the highest rate of sensitization in summer, and is easy to be multiple sensitized. Early sIgE screening is recommended to guide the prevention and diagnosis of the disease for children.

ObjectiveTo evaluate the efficacy of TCM health management based on tertiary management system for patients with myocardial infarction （MI）. MethodsA total of 277 patients with non-acute MI were enrolled and given comprehensive TCM health management strategies including health education， lifestyle adjustment， risk factors control， medication and TCM appropriate techniques management through a tertiary management system with "the patient as the core， village/community physicians as the main executive body， and tertiary TCM hospital specialists as the leading body"， for a period of 12 months by using a prospective single-arm cohort study. Through patient reporting and medical records surveys， various indicators before and after 12-month management were collected and compared. The primary efficacy indicators were readmission rate and recurrent exacerbation rate， and the secondary efficacy indicators included disease awareness-related indicators， lifestyle behavior-related indicators， cardiovascular risk factor-related indicators and Canadian cardiovascular society （CCS） cardiac function classification. ResultsA total of 255 patients completed the study and were included in the final analysis. The recurrent exacerbation and readmission rates of patients after management were 23.14% （59 cases） and 20.25% （49 cases）， respectively， significantly lower than 36.08% （92 cases） and 53.72% （130 cases） before management （P＜0.05）. Except for knowledge on diabetes diagnostic criteria with no significant difference before and after management （P＞0.05）， awareness of other knowledge with regard to the prevention and treatment of cardiovascular and cerebrovascular diseases were improved after management （P＜0.01）， as well as the total score （P＜0.01）. In terms of daily life behaviors， the rates of salty diet， sweet diet and greasy diet were significantly lower than baseline， while the rate of moderate exercise was significantly higher （P＜0.05 or P＜0.01）； the rates of ongoing smoking and vigorous exercise were not significantly changed （P＞0.05）. For cardiovascular risk factors， patients' total cholesterol， low-density lipoprotein （LDL） cholesterol， triglycerides， fasting glucose， total depression assessment scale score， and total anxiety assessment scale score were significantly reduced after management （P＜0.01）. Systolic blood pressure and body mass index （BMI） were both higher after management （P＜0.05 or P＜0.01）， and there was no statistically significant difference in diastolic blood pressure （P＞0.05）. In terms of the cardiovascular disease risk factors reaching the standard levels， the rate of LDL cholesterol ＜1.8 mmol/L significantly increased （P＜0.01）， while the rate of BMI ＜24 kg/m² and the rate of systolic blood pressure ＜140 mmHg both decreased significantly （P＜0.05 or P＜0.01） from baseline； the diastolic blood pressure and rate of fasting glucose ＜7.0 mmol/L were not significantly changed （P＞0.05）. The patients' CCS cardiac function classification was significantly reduced （P＜0.05）. ConclusionTCM health management based on the tertiary management system can enhance MI patients' awareness of the disease， change poor lifestyle habits， reduce risk factors such as blood lipids and blood glucose， improve anxiety and depression， increase activity tolerance， and reduce their recurrence exacerbation and readmission rates， which is worthy of clinical promotion.

AIM:Using bioinformatics analysis methods to identify the hub genes involved in myocardial isch-emia-reperfusion injury(MIRI).METHODS:Firstly,the rat MIRI related dataset GSE122020,E-MEXP-2098,and E-GEOD-4105 were downloaded from the database.Secondly,differentially expressed genes(DEGs)were screened from each dataset using the linear models for microarray data(limma)package,and robust DEGs were filtered using the robust rank aggregation(RRA)method.In addition,the surrogate variable analysis(SVA)package was used to merge all datas-ets into one,and merged DEGs were screened using the limma package.The common DEGs were obtained by taking the intersection of the two channels of DEGs.Next,the protein-protein interaction(PPI)network of common DEGs was con-structed,and the hub genes were identified using the density-maximizing neighborhood component(DMNC)algorithm.The receiver operating characteristic curve(ROC)was plotted to evaluate the diagnostic performance of the hub gene.Then,the mRNA and protein expression levels of hub genes were detected in the rat MIRI model,and the literature re-view analysis was carried out on the involvement of hub genes in MIRI.Finally,the gene set enrichment analysis(GSEA)was performed on hub gene to further reveal the possible mechanism in mediating MIRI.RESULTS:A total of 143 robust DEGs and 48 merged DEGs were identified.After taking the intersection of the two,48 common DEGs were obtained.In the PPI network of common DEGs,5 hub genes were screened out,namely MYC proto-oncogene bHLH transcription fac-tor(MYC),prostaglandin-endoperoxide synthase 2(PTGS2),heme oxygenase 1(HMOX1),caspase-3(CASP3),and plasminogen activator urokinase receptor(PLAUR).The ROC results showed that the area under the curve values for all hub genes were greater than 0.8.MYC,PTGS2,CASP3,and PLAUR showed high mRNA and protein expression in rat MIRI,while there was no difference in mRNA and protein expression for HMOX1.The literature review revealed that among the 5 hub genes,only PLAUR has not been reported to be involved in MIRI.The GSEA results for PLAUR indicat-ed that its functional enrichment mainly focused on pathways such as NOD-like receptor signaling pathway,P53 signaling pathway,Toll-like receptor signaling pathway,apoptosis,and fatty acid metabolism.CONCLUSION:MYC,PTGS2,CASP3,HMOX1,and PLAUR are involved in the pathological process of MIRI.PLAUR is a potential hub gene that can mediate MIRI by regulating pathways such as NOD like receptor signaling,P53 signaling,Toll like receptor signaling,cell apoptosis,and fatty acid metabolism.The results can provide reference for further investigation into the molecular mechanisms and therapeutic targets of MIRI.

Objective:To investigate the epidemiological characteristics of pneumonia and the related factors of the length of hospitalization of pneumonia in the elderly aged 60 years and older in Ningbo in 2019.Methods:Data on hospitalized cases of pneumonia in the elderly aged 60 years and older in Ningbo in 2019 were collected through the regional health information platform, and the population data of Ningbo in 2019 were obtained through the Zhejiang Provincial Bureau of Statistics. A descriptive epidemiological analysis was conducted on hospitalized cases of pneumonia in the elderly population, and factors related to the length of hospitalization were explored.Results:A total of 15 956 hospitalized cases of pneumonia aged 60 years and older were reported in Ningbo in 2019, and the incidence of pneumonia requiring hospitalization was 1.02% (15 956/1 571 431). The incidence was 1.13% (8 613/760 357) in males and 0.83% (6 759/811 074) in females, and the ratio of male to female cases was 1.27∶1. The highest incidence was found in the ≥80 age group (2.52%), and the lowest incidence was found in the 60-69 age group (0.58%). March, February, and January were the peak period of pneumonia hospitalization. The main types of pneumonia diagnosed were not specified (65.12%), followed by bacterial pneumonia (34.60%). The M( Q1, Q3) of hospitalized patients with pneumonia was 9 (7, 13) days. The results of multivariate logistic regression analysis showed that gender (female: OR=0.911, 95% CI: 0.849-0.978) and older age (70-79 years old: OR=1.211, 95% CI: 1.111-1.321; ≥80 years old group: OR=1.486, 95% CI: 1.365-1.617), settlement method (self-payment: OR=0.567, 95% CI: 0.464-0.691), higher level of hospitals (Grade Ⅱ: OR=1.902,95% CI:1.723-2.100; Grade Ⅲ: OR=1.546,95% CI:1.407-1.698) were associated with the length of hospitalization for pneumonia in people aged 60 years and older in Ningbo. Conclusions:Hospitalization with pneumonia in people aged 60 years and older was high in winter and spring, men and older adults were in high-risk groups in Ningbo in 2019. Gender, age, billing method, and level of hospitals may be related factors to the length of hospitalization for pneumonia.

Objective:To investigate the application effect of 3D digital modeling combined with 3D printed model in assisting the classroom theoretical teaching of orthopedics in five-year undergraduate students majoring in clinical medicine.Methods:In May 2022, 33 five-year undergraduate students majoring in clinical medicine in the class of 2018 in Southwest Medical University were selected and divided into experimental group with 17 students and control group with 16 students according to the odd or even student number. The students in the experimental group were taught by traditional PPT+3D digital modeling combined with 3D printed model, and those in the control group were taught by the traditional PPT teaching method. The teaching effect was evaluated by theoretical examination and a questionnaire survey on the degree of satisfaction with teaching. SPSS 25.0 was used to perform the t-test, the Mann-Whitney U test, the rank sum test, and the chi-square test. Results:The experimental group had a significantly higher score of theoretical examination than the control group (86.24±4.16 vs. 82.50±6.06). The questionnaire survey on the degree of satisfaction with teaching showed that compared with the control group, the experimental group had a significantly higher degree of satisfaction with the understanding and learning of orthopedic diseases [3 (2, 3) vs. 2 (2, 2), P < 0.05], the improvement in learning interest [2 (2, 3) vs. 2 (1, 2), P < 0.05], classroom innovation [3 (3, 3) vs. 2 (1.5, 2), P < 0.05], and overall classroom teaching [3 (2, 3) vs. 2 (2, 2), P < 0.05]. Conclusion:In assisting the classroom theoretical teaching of orthopedics in undergraduate students majoring in clinical medicine, 3D digital modeling combined with 3D printed model can provide concrete 3D models, reduce the difficulties in learning, improve the awareness of orthopedic diseases, strengthen learning interest, and increase the degree of satisfaction with teaching and academic scores.

Objective To explore the medication rules of clinical prescriptions of Chinese medicine in the treatment of heart failure with diuretic resistance based on data mining method.Methods Seven domestic and foreign databases,including CNKI and Wanfang,were searched for literature on Chinese medicine for heart failure with diuretic resistance from the establishment of the database to October 2021.Frequency analysis,association rule analysis and cluster analysis were used for statistical analysis.Results A total of 41 literatures were included,including 39 prescriptions.Yang deficiency and water retention were the main symptoms of the disease.A total of 72 single herbs were used,with a total of 438 times of use.There are 30 Chinese medicines with a frequency of more than 5 times,involving 9 efficacy categories,mainly tonic medicines,diuresis and dampness medicines,blood-activating and stasis-removing medicines,and interior-warming medicines.The association rule analysis yielded drug compatibility with Poria as the core,such as Atractylodis Macrocephalae Rhizoma→Poria and Cinnamomi Ramulus→Poria.Cluster analysis yielded six new formula combinations with efficacy in warming Yang,inducing diuresis,benefiting qi and invigorating Blood.Conclusion Heart failure with diuretic resistance is a syndrome of root vacuity and tip repletion,cold-heat complex,and the core pathogenesis is"deficiency","water"and"stasis".The treatment of this disease occurs by warming yang and excreting water,supplemented by replenishing qi and activating blood circulation.Poria with Atractylodis Macrocephalae Rhizoma and Cinnamomi Ramulus are commonly used combinations,and Zhen Wu Decoction is the basic formula for the treatment of this disease.

Objective:To construct a surface display system containing various lengths of the Ag43 passenger domain for an optimal bacterial surface display of foreign protein HPV16L1.Methods:(1) Ag43 gene sequences of different lengths were inserted into pET22b vector to construct four Ag43 surface display vectors (Ag43/138, Ag43/551, Ag43/552 and Ag43/700) using PCR and subcloning strategy. (2) The generation of four HPV16L1-Ag43 fusion constructs was completed by PCR and subcloning methods. (3) HPV16L1-Ag43 fusion proteins were expressed and analyzed by SDS-PAGE. (4) The surface exposure of HPV-16L1 was verified using trypsin digestion.Results:PCR analysis and sequencing results showed that Ag43 surface display vectors and HPV16L1-Ag43 fusions were constructed successfully. SDS-PAGE showed that the expression of HPV16L1-Ag43 fusion proteins could be induced with 0.2 mmol/L IPTG and the protein content was reduced after the cells were treated with trypsin, especially the content of Ag43/700-HPV16L1 that showed a drastic reduction.Conclusions:The Ag43 surface display system was successfully constructed and could be used for a successful display of HPV16L1. This study also showed that Ag43/700 comprising only the α-helix and the β-barrel of Ag43 provided an optimal surface display for HPV16L1.