Objective To develop an animal model that replicates the clinical phenotype of severe asthma.Methods Ovalbumin(OVA)combined with IL-33 or varying doses of lipopolysaccharides(LPS)was used to explore the construction of a severe asthma mouse model.Established model animals were assessed for lung function,number of inflammatory cells,and lung tissue pathology were assessed.Expression of key genes associated with severe asthma identified from the GEO database were validated in the new model.Results Compared with OVA alone,OVA combined with IL-33 or 5 μg LPS significantly increased airway resistance and the number of inflammatory cells in bronchoalveolar lavage fluid,and aggravated the pathological damage to lung tissues.The expression patterns of key genes in the newly constructed severe asthma models were consistent with those observed in clinical patients with severe asthma.Conclusions The modeling method of combining OVA with IL-33 or LPS(5 μg)can be used to construct experimentalanimal models of severe asthma.

Objective To explore the role of histone deacetylase 3(HDAC3)and the intestinal rhythm gene nuclear factor,inter-leukin 3 regulated(NFIL3)and visceral hypersensitivity in mice.Methods C57BL/6J mice were randomly divided into normal group(control group,CON group),sleep deprivation group(SD group),and HDAC3 inhibitor intervention group(SD+RGFP966group).The behaviors of mice were detected by open field test and elevated plus maze test,and visceral sensitivity was evaluated by colonic dila-tion test and pain threshold.The pathological changes of colon tissues in each group were evaluated by hematoxylin-eosin staining,and the expressions of inflammatory factors(IL-17,IL-6)and anti-inflammatory factors(IL-10)in serum were detected by enzyme-linked immunosorbent assay(ELISA).The mRNA expressions of junction proteins(ZO-1,Occludin),inflammatory factors(IL-1 β,IL-6)in colon tissues were determined by real-time fluorescence quantitative polymerase chain reaction(RT-qPCR).The protein ex-pressions of NFIL3,HDAC3 and inflammatory factors(TNF-α,IL-1 β)in colon tissues were detected by Western blotting.Results Compared with the CON group,mice in the SD group exhibited anxiety and depression-like behaviors and increased visceral sensitivity(P＜0.05).The hematoxylin-eosin results showed no obvious damage to the structure of colon tissues.The results of Western blot and RT-qPCR showed that the expressions of inflammatory factors in colonic tissue increased(P＜0.05),while the expressions of junction proteins decreased(P＜0.05).The results of Western blot showed that the protein expressions of HDAC3 and NFIL3 increased.Com-pared with the SD group,the anxiety and depression-like behaviors and visceral sensitivity of mice in the SD+RGFP966group were im-proved(P＜0.05),and the expressions of inflammatory factors decreased(P＜0.05),while the expressions of junction proteins in-creased(P＜0.05).The expression of NFIL3decreased after HDAC3 inhibition(P＜0.05).Conclusion HDAC3 inhibitor RGFP966 can improve the visceral hypersensitivity of mice by regulating the intestinal rhythm gene NFIL3.

AIM: To explore the factors affecting the whole-eye astigmatism after pterygium excision combined with autologous limbal stem cell transplantation.METHODS: A retrospective analysis was conducted on the medical records of 42 patients(42 eyes)with primary pterygium admitted in the ophthalmology department of Xijing Hospital from January 2023 to October 2023. They underwent pterygium excision combined with autologous limbal stem cell transplantation. The maximum invasion depth of pterygium into the cornea was measured with anterior segment optical coherence tomography(AS-OCT)before operation, the length of the pterygium invading cornea, the width of the limbus and the area of the invading cornea were measured during the operation, and three-dimensional values of corneal astigmatism of anterior segment, index of surface variance(ISV), index of vertical asymmetry(IVA), best corrected visual acuity(BCVA)and whole-eye astigmatism were collected before and at 1 mo after surgery. Patients with astigmatism ≤0.50 D or >0.50 D of the whole eye at 1 mo after surgery were assigned to group A and B, respectively. The differences of clinical data before and at 1 mo after surgery between the two groups, and the correlation between pre-operative clinical indicators and whole-eye astigmatism were analyzed. The decision tree algorithm was performed to explore the influencing factors of whole-eye astigmatism at 1 mo postoperatively.RESULTS: The maximum invasion depth of pterygium in the group A was significantly less than that in the group B [80.00(40.00, 180.00)μm vs 175.00(123.00, 190.00)μm, P=0.002]. Preoperative BCVA(LogMAR), whole-eye astigmatism, cornea astigmatism, ISV, IVA and maximum invasion depth of pterygium were positively correlated with whole-eye astigmatism at 1 mo after surgery(rs=0.317, P=0.041; rs=0.545, P<0.001; rs=0.448, P=0.003; rs=0.389, P=0.011; rs=0.382, P=0.013; rs=0.391, P=0.010). The decision tree algorithm screened out two influential factors: the maximum invasion depth of pterygium into the cornea and preoperative whole-eye astigmatism. The risk of whole-eye astigmatism >0.50 D at 1 mo after operation was higher with maximum invasion depth of pterygium into the cornea >95 μm than that with ≤95 μm. Among the patients with whole-eye astigmatism >2.63 D before operation, the probability of residual whole-eye astigmatism >0.50 D was 88.9%, and the predictive model AUC was 0.804.CONCLUSION: The whole-eye astigmatism after pterygium resection is mainly affected by the maximum invasion depth of pterygium into the cornea and preoperative whole-eye astigmatism. When the maximum invasion depth of pterygium into the corneal is >95 μm and the whole-eye stigmatism is >2.63 D before surgery, the patient should receive surgical treatment as soon as possible in order to obtain good clinical benefits.

Objective:To investigate and analyze basic status of radiotherapy units in Hebei Province in 2024.Methods:Led by the Fourth Hospital of Hebei Medical University, the Radiation Oncology Branch of the Hebei Medical Association, and the Radiation Oncology Expert Committee of the Hebei Society of Clinical Oncology, a province-wide survey was conducted using structured questionnaires. The survey covered key aspects such as basic information of radiotherapy institutions, personnel allocation, equipment configuration, and implementation of radiotherapy techniques. Collected data were summarized and descriptively analyzed comparing with a 2013 survey of radiotherapy in Hebei Province.Results:All 158 radiotherapy institutions across Hebei Province participated in the survey. A total of 2273 radiotherapy professionals were reported, including 1317 radiation oncologists (57.94%), 332 medical physicists (14.61%), 71 radiotherapy engineers (3.12%), and 553 radiotherapy technologists (24.33%). The number of radiotherapy devices significantly increased from 121 in 2013 to 237 in 2024, including 68 domestic radiotherapy equipment. The current inventory includes 195 medical linear accelerators (2.61 units per million population), 2 cobalt-60 units, 27 afterloading machines, 9 tomotherapy (TOMO) systems, 3 CyberKnife units, and 1 proton therapy system. Three-dimensional conformal radiotherapy and stati intensity-modulated radiotherapy have been widely adopted across the province, while advanced techniques such as volumetric-modulated arc therapy, stereotactic body radiotherapy, and respiration-gated technology, and respiratory gating are gradually being implemented.Conclusions:In recent years, the configuration of radiotherapy personnel in Hebei Province has become more balanced, and the availability of precision radiotherapy equipment has significantly improved. There is a growing trend in the adoption of domestically manufactured radiotherapy equipment, marking substantial progress in the development of radiation oncology services in the region.

Objective To establish a prediction model for futile recanalization after mechanical thrombectomy(MT)in acute anterior circulation large vessel occlusion(ACLVO)stroke patients based on multimodal imaging features,and to evaluate its predictive performance.Methods Retrospectively enrolled consecutive ACLVO patients who underwent MT with successful recanalization(modified thrombolysis in cerebral infarction[mTICI]grade≥2b)at the Department of Neurology of Fuyang People's Hospital between June 2023 and December 2024.Demographic and clinical data were collected,including age,gender,hypertension,diabetes mellitus,atrial fibrillation,smoking history,alcohol consumption history,National Institutes of Health stroke scale(NIHSS)score upon admission,intravenous thrombolysis,wake-up stroke,onset-to-puncture time(OPT),puncture-to-recanalization time(PRT),occlusion vessel(internal carotid artery,middle cerebral artery),treatment method(suction thrombectomy,stent thrombectomy,suction+stent thrombectomy).All patients underwent pre-procedural CT perfusion(CTP)+CT angiography(CTA)of the head and neck.Imaging parameters included hypoperfusion(defined as time to peak＞6 s)volume(HPV),core infarct(defined as cerebral blood flow＜30%)volume(CIV),mismatch ratio(MMR;HPV/CIV),and Tan collateral score(poor collaterals:0-1 score,good collaterals:2-3 score).Patients were followed up at 90 days post-procedure via outpatient clinic or re-admission.Patients with a modified Rankin scale(mRS)score≤2 were classified into the effective recanalization group,while those with mRS score≥3 were classified into the futile recanalization group.Imaging variables with statistically significant differences between the futile recanalization and effective recanalization groups were included in multivariate Logistic regression analysis to identify independent predictors of futile recanalization and construct a nomogram model.The predictive value of the model was assessed using the receiver operating characteristic(ROC)curve.Model calibration was evaluated using the Hosmer-Lemeshow test(goodness-of-fit defined as P＞0.50).Results(1)A total of 105 ACLVO patients with successful MT recanalization were included(65 males,40 females,mean age[66±11]years,ranged 31～87 years).There were 60 patients in the effective recanalization group and 45 in the futile recanalization group.Compared to the effective recanalization group,the futile recanalization group had significantly higher age([69±11]years vs.[63±11]years,P=0.012),higher proportion of diabetes mellitus(33.33%[15/45]vs.16.67%[10/60],P=0.047),higher pre-treatment NIHSS score([15.51±2.73]vs.[13.25±2.71],P＜0.01),longer OPT([516.40±192.48]min vs.[322.98±171.22]min,P＜0.01)and PRT([94.96±17.37]min vs.[87.58±15.99]min,P=0.026),larger CIV([74.00±12.76]ml vs.[24.28±14.72]ml,P＜0.01)and HPV([121.43±22.21]ml vs.[91.62±11.34]ml,P＜0.01),smaller MMR([1.65±0.15]vs.[9.42±1.91],P＜0.01),higher 90-day mRS score([3.60±0.54]score vs.[1.22±0.83]score,P＜0.01),and a significantly different distribution of Tan collateral scores(P＜0.01).(2)Multivariate Logistic regression analysis was performed with futile recanalization as the dependent variable,identified the following independent predictors of futile recanalization:HPV(OR,2.042,95%CI 1.296-3.218,P=0.002),CIV(OR,2.373,95%CI 1.315-4.280,P=0.004),MMR(OR,1.758,95%CI 1.135-2.721,P=0.011),and Tan collateral score(OR,5.166,95%CI 2.100-12.651,P＜0.01).(3)A nomogram prediction model for futile recanalization after MT in ACLVO stroke was constructed based on the four imaging parameters as aforementioned.ROC curve analysis demonstrated that the area under the curve for this model in predicting futile recanalization after MT was 0.846(95%CI 0.739-0.912),with a sensitivity of 0.844 and a specificity of 0.817.The calibration curve and the Hosmer-Lemeshow test indicated the goodness-of-fit was high(P=0.617),and the overall stability of the model was good.Conclusion The predictive model for futile recanalization after MT for acute ACLVO constructed base on HPV,CIV,MMR and Tan collateral score facilitates the identification patients with high-risk of futile recanalization.

Objective:This study aimed to summarize and analyze the preliminary application experience of a novel pressurized intraperitoneal aerosol chemotherapy (PIPAC) device in patients with peritoneal metastases of gastrointestinal malignancies.Methods:In this descriptive case series study, four patients with pathologically confirmed peritoneal metastatic gastrointestinal malignancies were enrolled, receiving PIPAC treatment at Guangdong Provincial People's Hospital from December 2024 to February 2025. The PIPAC treatment was performed five times on these patients . Key procedural steps included equipment preparation, operation platform construction, cytologic examination of ascites, Peritoneal Cancer Index (PCI) scoring, biopsy of peritoneal metastases, drug preparation, connection and testing of the PIPAC device, PIPAC treatment, and aerosol evacuation. Preoperative and postoperative clinical data were collected and analyzed to assess the safety and feasibility of PIPAC treatment.Results:3 males and 1 female patients were enrolled; median age was 57 (range, 36-70) years old; median body mass index was 22.5 (range, 18.0-24.6) kg/m2, and the preoperative Eastern Cooperative Oncology Group (ECOG) score was 1 for all cases. Four patients successfully completed the five PIPAC treatments without any intraoperative adverse events. The PIPAC treatment time ranged from 34 minutes to 36 minutes, with a median preoperative PCI score of 18 (range, 5-25). The average Peritoneal Regression Grading Score (PRGS) before the first and second PIPAC treatments were 2.1±0.8 and 1.7±0.6, respectively. The median Visual Analog Scale (VAS) scores for pain on postoperative days 1, 2, and 3 were 2 (range, 2-4), 1 (range, 0-2), and 1 (range, 0-2), respectively. All patients resumed the oral intake and ambulation on the first postoperative day, with a postoperative hospital stay of 3 days. No postoperative complications or perioperative death occurred.Conclusion:The preliminary study results indicate that the use of the novel PIPAC device for the treatment of peritoneal metastases of gastrointestinal malignant tumors is safe and feasible.

The high comorbidity and heterogeneity of obsessive-compulsive disorder (OCD) underscore the importance of better understanding its transdiagnostic features. Intolerance of uncertainty (IU), a transdiagnostic negative psychological trait, has been consistently linked to a variety of psychiatric disorders, including OCD. IU is hierarchically structured, comprising general IU, inhibitory IU and prospective IU, each of them potentially relating differently to OCD symptom dimensions. For example, inhibitory IU has shown specific associations with procrastination behaviors. Neuroimaging studies indicate that OCD patients demonstrate abnormal neural activity within the fronto-limbic circuit and salience network, including anterior insula, amygdala and ventromedial prefrontal cortex, during IU-related psychological processes. This review synthesizes findings across three key areas: symptom presentation, neurobiological mechanisms and intervention strategies, aiming to clarify the role of IU in OCD. Furthermore, the potential of targeting IU therapeutically to complement first-line treatment is discussed, ultimately enhancing clinical intervention outcomes.

Objective To establish a mouse model of H1N1 influenza wind-heat syndrome by combining climate intervention with influenza virus nasal drops.Methods Seventy-two BALB/c mice were divided randomly into nine groups:a Control group,wind-heat(FR)groups(FR-3Day,FR-5Day),and Model groups(1LD-3Day,2LD-3Day,3LD-3Day,1LD-5Day,2LD-5Day,2LD-5Day,3LD-5Day)(n=8 mice per group).Mice in the Control group were housed in a normal environment,while mice in the FR and Model groups were kept in wind-heat conditions for 7 d.Mice in the Model groups received nasal PR8 influenza virus infection on the 8th day,and mice in the Control and FR heat groups received equal amounts of physiological saline nasal drops.After virus challenge,each group was housed in a normal environment and samples were taken on days 3 and 5.The appearance of the mice was observed and recorded and the lung index,routine blood parameters,lung tissue pathology,serum interleukin(IL)-6 levels,and virus titers were detected in each group based on their behavioral status,stools,and body temperature.Results After 7 d of wind-heat intervention,mice in the FR groups showed no significant abnormalities in terms of appearance,stools,body temperature,routine blood parameters,or lung tissue pathology compared with the Control group.The appearance,lung index,red blood cell count,hemoglobin,hematocrit,pathological result,and body temperature in the Model groups worsened progressively with increasing time and toxin dosage,while the neutrophil percentage,lymphocyte percentage,virus titer,and serum IL-6 levels peaked on day 3 after viral attack,for the same viral dose,and then decreased slightly on day 5.Conclusions PR8 nasal drops and 7 d of wind-heat climate intervention can be used to establish a mouse model of influenza wind-heat syndrome.

The high comorbidity and heterogeneity of obsessive-compulsive disorder (OCD) underscore the importance of better understanding its transdiagnostic features. Intolerance of uncertainty (IU), a transdiagnostic negative psychological trait, has been consistently linked to a variety of psychiatric disorders, including OCD. IU is hierarchically structured, comprising general IU, inhibitory IU and prospective IU, each of them potentially relating differently to OCD symptom dimensions. For example, inhibitory IU has shown specific associations with procrastination behaviors. Neuroimaging studies indicate that OCD patients demonstrate abnormal neural activity within the fronto-limbic circuit and salience network, including anterior insula, amygdala and ventromedial prefrontal cortex, during IU-related psychological processes. This review synthesizes findings across three key areas: symptom presentation, neurobiological mechanisms and intervention strategies, aiming to clarify the role of IU in OCD. Furthermore, the potential of targeting IU therapeutically to complement first-line treatment is discussed, ultimately enhancing clinical intervention outcomes.

Objective:To explore the relationship between irrational procrastination and compulsory citizenship behavior among clinical nurses,and to investigate the role of psychological entitlement in this relationship.Meth-ods:A sample of 413 clinical nurses from a tertiary hospital was selected for this study.The Irrational Procrastina-tion Scale(IPS),Compulsory Citizenship Behavior Scale(CCBS),and Psychological Entitlement Scale(PES)were used for evaluation.Results:The scores of IPS,CCBS and PES were positively correlated with each other(r=0.53,0.56,0.39,Ps＜0.01).Psychological entitlement partially mediated the relationship between compulsory citi-zenship behavior and irrational procrastination among clinical nurses,with an indirect effect of 0.17,accounting for 13.85％of the total effect.Conclusion:Psychological entitlement plays a partial mediating role in the relationship between compulsory citizenship behavior and irrational procrastination among clinical nurses.