From June 13th to 16th, 2025, the European Academy of Allergy and Clinical Immunology annual meeting was successfully held in Glasgow, UK. The conference attracted over 8 000 scholars and experts from around the world, becoming the largest global event in the fields of allergy, asthma, and clinical immunology. The theme of the conference,"Breaking boundaries in Allergy, Asthma and Clinical Immunology: Integrating Planetary Health for a Sustainable Future" focused on the close relationship between environmental changes and allergic diseases. As climate change continues to intensify, the pathogenesis and prevention strategies for allergic diseases have garnered widespread attention. In this meeting, allergic rhinitis and chronic rhinosinusitis were major topics of discussion, and the research advancements presented provided valuable insights for future clinical treatments.

Objective To explore the effect of rotenone exposure on the metabolic homeostasis of nicotinamide adenine dinucleotide(NAD+)in dopaminergic neurons of the rat mid-brain striatum,and investigate the effect of exogenous NAD+intervention on the cellular damage response of dopaminergic neurons induced by rotenone.Methods Male SD rats(8 weeks old,200～250 g)were divided into a control group using a table of random numbers,a rotenone exposure group,an NAD+-intervention group,and an NAD+group.An intoxication model was established in the rotenone exposure group.NAD+(250 mg/kg)was administered simultaneously with rotenone exposure in the NAD+-intervention group.The NAD+group was only given NAD+,while the control group received no intervention.After modeling,open field test was performed to evaluate behavioral changes.After scarification,serum samples and mid-brain striatal tissues were collected.HE staining was used to observe the morphology of dopaminergic neurons in the striatum.The NAD+content in the tissues was detected with NAD+/NADH kit.Western blotting was employed to determine the contents of tyrosine hydroxylase(TH),nicotinamide phosphoribosyltransferase(NAMPT),nicotinamide mononucleotide adenylyltransferase(NMNAT),and solute carrier family 25 member A51(SLC25A51).ELISA was utilized to measure the content of dopamine in the striatal tissues.Immunohistochemical staining was applied to observe the distribution and contents of TH proteins in the striatal tissues of each group.Results Rotenone exposure significantly affected the vital signs and motor abilities of rats,induced disorderly-arranged,atrophy and deformed neurons in the striatal tissue,decreased the content of TH,rate-limiting enzyme for dopamine synthesis,by approximately 29%(P<0.01),the content of dopamine by about 42%,and that of NAD+by almost 50%(P<0.01),while increased the NADH/NAD+ratio(P<0.01).After exposure,the content of NAMPT,an enzyme related to NAD+synthesis,was decreased by 26%(P<0.05),the contents of NMNAT1-3 and SLC25A51,mitochondrial transporters of NAD+by approximately 21%,38%,43%,and 21%,respectively(P<0.01).Exogenous NAD+intervention improved the motor function of exposure rats and the morphology of dopaminergic neurons in the mid-brain striatal tissue,and restored the content of TH in the striatal tissue significantly by 12.8%(P<0.05),and the content of dopamine by 20.9%(P<0.05).Conclusion Rotenone disrupts the NAD+homeostasis in dopaminergic neurons by inhibiting the NAD+synthesis and transport pathways in the mid-brain striatal tissues,while exogenous NAD+intervention can effectively alleviate the dopaminergic neuron damage induced by rotenone exposure.

Objective:To analyze the application effects of case-based learning (CBL) + Seminar teaching method based on Toulmin model in the education and teaching of clinical medicine innovation class.Methods:A total of 60 students from the clinical medicine innovation class at The Second Affiliated Hospital of Guangzhou Medical University from September 2021 to September 2023 were selected as research objects. These students were divided into control group ( n=30) and research group ( n=30) according to different teaching programs. The traditional teaching method was adopted in the control group, and the CBL + Seminar teaching method based on Toulmin model was adopted in the research group. The two groups were compared in terms of clinical knowledge, clinical skill, and clinical case analysis scores; changes in clinical thinking ability after teaching; and satisfaction with the teaching process. SPSS 22.0 was used for t-test and chi-square test. Results:The research group significantly outperformed the control group in clinical knowledge [(89.59±3.46) points vs. (83.23±3.02) points], clinical skill [(88.87±3.23) points vs. (83.62±3.13) points], and clinical case analysis [(89.73±3.51) points vs. (82.62±3.19) points] ( t=7.58, 6.39, 8.21, P<0.001). The clinical thinking ability after teaching was significantly higher in the research group compared to the control group [(258.49±13.36) points vs. (242.56±13.02) points] ( t=4.67, P<0.001). The overall satisfaction rate of teaching was significantly higher in the research group compared to the control group (100.00% vs. 80.00%, χ2=4.63, P=0.031). Conclusions:The CBL + Seminar teaching method based on Toulmin model can effectively improve student learning performance and clinical thinking ability, demonstrating a promising application value in the education and teaching of clinical medicine innovation class.

From June 13th to 16th, 2025, the European Academy of Allergy and Clinical Immunology annual meeting was successfully held in Glasgow, UK. The conference attracted over 8 000 scholars and experts from around the world, becoming the largest global event in the fields of allergy, asthma, and clinical immunology. The theme of the conference,"Breaking boundaries in Allergy, Asthma and Clinical Immunology: Integrating Planetary Health for a Sustainable Future" focused on the close relationship between environmental changes and allergic diseases. As climate change continues to intensify, the pathogenesis and prevention strategies for allergic diseases have garnered widespread attention. In this meeting, allergic rhinitis and chronic rhinosinusitis were major topics of discussion, and the research advancements presented provided valuable insights for future clinical treatments.

Objective:To analyze the application effects of case-based learning (CBL) + Seminar teaching method based on Toulmin model in the education and teaching of clinical medicine innovation class.Methods:A total of 60 students from the clinical medicine innovation class at The Second Affiliated Hospital of Guangzhou Medical University from September 2021 to September 2023 were selected as research objects. These students were divided into control group ( n=30) and research group ( n=30) according to different teaching programs. The traditional teaching method was adopted in the control group, and the CBL + Seminar teaching method based on Toulmin model was adopted in the research group. The two groups were compared in terms of clinical knowledge, clinical skill, and clinical case analysis scores; changes in clinical thinking ability after teaching; and satisfaction with the teaching process. SPSS 22.0 was used for t-test and chi-square test. Results:The research group significantly outperformed the control group in clinical knowledge [(89.59±3.46) points vs. (83.23±3.02) points], clinical skill [(88.87±3.23) points vs. (83.62±3.13) points], and clinical case analysis [(89.73±3.51) points vs. (82.62±3.19) points] ( t=7.58, 6.39, 8.21, P<0.001). The clinical thinking ability after teaching was significantly higher in the research group compared to the control group [(258.49±13.36) points vs. (242.56±13.02) points] ( t=4.67, P<0.001). The overall satisfaction rate of teaching was significantly higher in the research group compared to the control group (100.00% vs. 80.00%, χ2=4.63, P=0.031). Conclusions:The CBL + Seminar teaching method based on Toulmin model can effectively improve student learning performance and clinical thinking ability, demonstrating a promising application value in the education and teaching of clinical medicine innovation class.

Breast cancer remains a leading cause of mortality in women worldwide.Triple-negative breast cancer(TNBC)is a particularly aggressive subtype characterized by rapid progression,poor prognosis,and lack of clear therapeutic targets.In the clinic,delineation of tumor heterogeneity and development of effective drugs continue to pose considerable challenges.Within the scope of our study,high hetero-geneity inherent to breast cancer was uncovered based on the landscape constructed from both tumor and healthy breast tissue samples.Notably,TNBC exhibited significant specificity regarding cell prolif-eration,differentiation,and disease progression.Significant associations between tumor grade,prog-nosis,and TNBC oncogenes were established via pseudotime trajectory analysis.Consequently,we further performed comprehensive characterization of the TNBC microenvironment.A crucial epithelial subcluster,E8,was identified as highly malignant and strongly associated with tumor cell proliferation in TNBC.Additionally,epithelial-mesenchymal transition(EMT)-associated fibroblast and M2 macrophage subclusters exerted an influence on E8 through cellular interactions,contributing to tumor growth.Characteristic genes in these three cluster cells could therefore serve as potential therapeutic targets for TNBC.The collective findings provided valuable insights that assisted in the screening of a series of therapeutic drugs,such as pelitinib.We further confirmed the anti-cancer effect of pelitinib in an orthotopic 4T1 tumor-bearing mouse model.Overall,our study sheds light on the unique characteristics of TNBC at single-cell resolution and the crucial cell types associated with tumor cell proliferation that may serve as potent tools in the development of effective anti-cancer drugs.

Objective:To establish the biology reference interval (RI) of peripheral blood procalcitonin (PCT) for children between 3 days and 6 years old in China.Methods:Totally 3 353 reference individuals with apparent health or no specific diseases were recruited in 18 hospitals throughout the country during October 2020 to May 2021. Reference individuals were divided into four groups: 3-28 days, 29 days - 1 year, 1-3 years and 4-6 years. Vein blood or capillary blood were collected by percutaneous puncture from every reference individual. The PCT level in serum and the capillary whole blood were assayed by Roche Cobas e601 and Norman NRM411-S7 immunoanalyzer. Outliers were deleted and 95th percentiles of every group were provided as RIs. Man-Whitney U test or Kruskal-Wallis test were used performed to assess the difference among different gender, age or method groups. Results:The difference of PCT distribution between male and female is not statistically significant, but the difference between serum and capillary whole blood is statistically significant. The differences between age groups are significant too. For Roche e601, serum PCT RI of 3-28 days group is <0.23 μg/L, 29 days - 6 years are <0.11 μg/L. For NRM411, Serum PCT RI of 3-28 days group is <0.21 μg/L, 29 days - 1 year: <0.09 μg/L, 1 - 6 years: <0.10 μg/L. For whole blood PCT, RI of 3-28 days group is <0.26 μg/L, 29 days - 6 years is <0.15 μg/L.Conclusions:Serum and capillary whole blood PCT have different RIs, however, capillary whole blood PCT testing is valuable in pediatric application. Children in 3-28 days show higher PCT levels than other age group. To establish the RIs and understand the differences among different groups are essential for the interpretation and clinical application of peripheral blood PCT testing results.

Objective To explore the clinical effect of continuous venous-venous hemofiltration (CVVH) combined with hemoperfusion (HP) in treatment of patients with hypertriglyceridemia pancreatitis (HTGP). Methods The clinical data of 33 patients with moderate and severe HTGP who were treated by CVVH combined with HP were retrospectively analyzed from March 2012 to March 2017 in Wuhan general hospital of the people's liberation army. The differences of vital signs and the serum levels of triglyceride (TG), total cholesterol (TC), low density lipoprotein (LDL), high density lipoprotein (HDL), amylase (AMS), interleukin-6 (IL-6), blood calcium (Ca2+) and white blood cell count (WBC), haemoglobin (Hb), platelet count (PLT) before and 24 hours,72 hours and 1 week after therapy were compared, the changes of recovery time to target serum TG level, frequency of blood purification therapy, time for disease situation becoming stable, days staying in hospital and mortality were observed. Results The levels of LDL were not high in patients with HTGP, the levels of TG and TC were decreased significantly after using CVVH plus HP, and after treatment for 24 hours statistical differences appeared compared with those before treatment [TG (mmol/L):7.14±1.04 vs. 11.90±2.03, TC (mmol/L): 7.47±1.04 vs. 10.20±1.26], the decline persisting to 1 week after treatment;the drop rates of TG and TC were the largest after the first combined treatment, and the TG drop rate was more obvious than that of TC [(51.92±14.18)% vs. (30.09±10.01)%, P < 0.05], an average of (2.58±1.45) days and (2.38±0.98) times of combined blood purification could restore the TG to its safe level (TG < 5.65 mmol/L), the time of disease situation tending to be stable was (7.46±3.05) days and the time of staying in hospital was (20.00±2.12) days. Systemic inflammatory response syndrome (SIRS) related vital signs and inflammatory response indicators were also improved obviously after the combined therapy (all P < 0.05), after treatment for 72 hours, various vital signs and Ca2+reached to their normal reference ranges, after treatment for 24 hours IL-6 began to decline significantly compared with that before treatment (ng/L: 120.85±16.45 vs. 151.05±18.19), and AMS and WBC returned to their normal reference ranges after treatment for 1 week. Conclusion CVVH combined with HP can quickly and effectively eliminate TG in blood in patients with HTGP and in the mean time it may ameliorate and block the early progression of SIRS, resulting in good therapeutic effect on alleviating the disease development and improving its prognosis.

Objective To study the effects of hemodialysis (HD) combined with hemoperfusion (HP) on sleep quality in maintenance hemodialysis (MHD) patients. Methods Sixty MHD patients admitted to Department of Blood Purification of Wuhan General Hospital of PLA from January to December 2016, 30 cases were treated with HD, and the other 30 cases were treated by HD+HP, the course of treatment was 12 weeks in both groups. The changes of serum β2-microglobulin (β2-MG) and parathyroid hormone (iPTH) were observed before treatment and 12 weeks after treatment; the sleep quality of all patients in the two groups were evaluated by Pittsburgh Sleep Quality Index (PSQI) Scale, and the correlations between the sleep quality of MHD patients andβ2-MG level, iPTH level were analyzed by Pearson linear correlation analysis. Results All the 60 patients completed the treatment. The serum β2-MG, iPTH levels and PSQI score after treatment were decreased obviously in HD+HP group compared with those before treatment, and the degrees of decrease in HD+HP group were more significant than those in the HD group [β2-MG (mg/L): 12.34±2.12 vs. 20.27±3.15, iPTH (ng/L): 224.54±100.28 vs. 398.42±155.37, PSQI score:8.56±0.86 vs. 12.45±0.88, all P < 0.05]. Pearson linear correlation analysis showed that the PSQI score was significantly positively correlated with serum β2-MG, iPTH level (r respectively was 0.416 and 0.462, both P < 0.01). Conclusion HD+HP therapy can significantly improve the sleep quality of MHD patients, and the mechanism may be related to the elimination of serum iPTH and β2-MG from the body of MHD patients.

Objective To evaluate the effect of intelligentized patient-controlled analgesia ( PCA) management on the quality of postoperative analgesia in the patients. Methods A total of 6601 patients who underwent postoperative PCA from January 1, 2015 to December 31, 2017 searched from the intelli-gentized PCA system database were selected as intelligentized PCA management group ( I group) , and then were divided into 3 subgroups according to the year: 2015 subgroup ( n=2221 ) , 2016 subgroup ( n=2152) and 2017 subgroup (n=2228). A total of 1235 patients who underwent PCA which was mainly performed by a department of anesthesiology in the postoperative analgesia-related multi-center questionnaire from April 11, 2016 to April 22, 2016 in 12 grade A tertiary hospitals in Guangdong Province were select-ed as the traditional PCA management group (C group). The development of moderate and severe pain, nausea and vomiting, over-sedation at rest and during activity and patient′s satisfaction were recorded on 1st and 2nd days after operation. Results Compared with C group, the incidence of moderate and severe pain, nausea and vomiting and over-sedation at rest and during activity was significantly decreased, and the rate of patient′s satisfaction was increased at each time point after operation in I group ( P<0. 05 or 0. 01) . Com-pared with 2015 subgroup, the incidence of moderate and severe pain at rest and severe pain during activity was significantly decreased in 2016 and 2017 subgroups ( P<0. 05 or 0. 01) , and the incidence of nausea and vomiting was significantly increased in 2017 subgroup ( P<0. 05) . Compared with 2016 subgroup, the incidence of nausea and vomiting was significantly increased in 2017 subgroup (P<0. 05). Conclusion Intelligentized PCA management can improve the efficacy of PCA, mitigates the occurrence of adverse reac-tions and raise the quality of postoperative analgesia in the patients.