Objective To understand the current situation and influencing factors of work-related musculoskeletal disorders (WMSDs) in medical staff in Beijing City. Methods A total of 2 687 medical staff were selected as the research subjects using the multi-stage sampling method. The current situation of WMSDs and occupational stress, anxiety symptoms, depressive symptoms, and insomnia symptoms were investigated using the Musculoskeletal Disorders Questionnaire, the Core Occupational Stress Scale, the Generalized Anxiety Disorder Scale, the Patient Health Questionnaire Depression Scale, and the Self-Sleep Management Questionnaire. The Max-Min Hill-Climbing algorithm was used to construct a Bayesian network model to analyze the influencing factors and internal relationships of WMSDs and to conduct reasoning and prediction of the model. Results The prevalence of WMSDs among the research subjects was 88.9%. Binary logistic regression analysis was used to identify age, educational level, personal monthly income, anxiety symptoms, depressive symptoms, insomnia symptoms, prolonged forward-head desk work, and prolonged static posture work to construct the Bayesian network model. The model consisted of nine nodes and eleven directed edges. Prolonged static posture work, prolonged forward-head desk work, and anxiety symptoms were directly related to WMSDs. Age and educational level were indirectly related to WMSDs through their influence on prolonged forward-head desk work. Depression symptoms were indirectly associated with WMSDs through their influence on anxiety symptoms. The model's prediction accuracy was 90.5%. Conclusion The prevalence of WMSDs among medical staff in Beijing City is relatively high. Prolonged static posture work, prolonged forward-head desk work, and anxiety symptoms may directly increase the risk of developing WMSDs.

Objective To utilize single-cell and peripheral blood transcriptomic data from 3D brain organoids,combined with machine learning,to analyze the role of mitochondrial autophagy genes in schizophrenia(SCZ).Methods By integrating two machine learning algorithms,we identified differentially expressed mitochondrial autophagy-related genes between schizophrenia patients and healthy controls using peripheral blood RNA sequencing data.The relationship between mitophagy gene,immune cells and inflammatory factors was further explored.Comprehensive single-cell analysis was used to explore the signaling pathways and specific transcription factors based on mitophagy genes.Results Using machine learning,seven key mitophagy genes expressed in schizophrenia patients were identified.Based on Mitoscore analysis,at the single-cell level,neurons with high mitochondrial autophagy activity(Mitohigh_Neuron)formed new interactions with endothelial cells via the SPP1 signaling pathway.Conclusion This study identified two subtypes of mitophagy and seven key mitophagy genes in schizophrenia,providing new insights into the pathogenesis of the disease.

Objective To develop an active monitoring model for adverse drug events(ADEs)related to antimicrobial use in children based on the China hospital pharmacovigilance system(CHPS).Methods Trigger items for the active monitoring model were initially drafted through a review of relevant literature,adverse reaction databases,and drug label warnings,and subsequently refined using the Delphi method.A retrospective analysis was performed on pediatric inpatients who received antibiotics at Anning First People's Hospital between January 1 and December 31,2024.The detection rate and positive predictive value(PPV)of the active monitoring model were calculated and compared with spontaneous ADE reports from the same period.Risk factors for ADEs were further analyzed using logistic regression.Results 25 trigger items were established for the active monitoring model.Among 1,784 cases,233 ADEs were identified,yielding a detection rate of 13.06%(233/1,784).The spontaneous reporting rate of adverse events during the same period was 1.85%(33/1,784).The difference between the two was statistically significant(P<0.001).There were 727 positive trigger events,with 299 cases of ADE detected,resulting in an overall PPV of 41.13%(299/727).Logistic regression revealed that antibiotic use exceeding 3 days(OR=1.454,95%CI:1.012-2.088)was significantly associated with ADE occurrence.Conclusion Compared with conventional spontaneous reporting,the active monitoring model can significantly improve the detection rate of ADEs of pediatric antimicrobial drugs and achieve active and real-time monitoring of drug adverse events.

【Objective】 To analyze the height growth of children aged 6 - 15 years in Nanning, Guangxi Zhuang Autonomous Region, so as to provide evidence for the assessment of local children′s height development. 【Methods】 A total of 25 225 children aged 6 - 15 years were selected to get their physical examination data from 41 primary schools in Nanning by stratified cluster sampling method in December 2021.Then the height data were compared with the current domestic standards. 【Results】 The average height of boys in Nanning was lower than the national standard before the age of 10 years and 7 months, and the gap with the national standard gradually narrowed after the age of 10 years and 7 months. The average height of boys in Nanning City exceeded the national standard between the age of 11 years and 1 month and 13 years and 6 months, and then lagged behind the national standard again after the age of 13 years and 7 months. The mean height of girls in Nanning City was lower than the national standard height in several age groups, and it was more obvious before the age of 9 years and 7 months. The proportion of height ≤-2s,≤-s,≥ +s and ≥+2s in boys aged 6 to 15 years in Nanning City fluctuated from 2.59% to 6.04%, 12.09% to 23.43%, 7.18% to 18.79% and 0.93% to 3.14%, respectively; the total proportions were 4.56%, 17.46%, 11.35% and 1.74%, respectively; the minimum/maximum proportion values of each height group were at 11 years old /8 years old, 14 years old/8 years old, 8 years old/12 years old, and 6 years old/11 years old, respectively. The proportions of girls aged 6 - 15 years in Nanning City with height ≤-2s, ≤-s, ≥+s, and ≥+2s fluctuated from 2.06% to 5.19%, 9.35% to 25.15%, 8.21% to 15.80% and 1.23% to 3.49%, respectively; the total proportions were 3.38%, 16.91%, 11.97% and 2.29%, respectively; and the minimum/maximum proportion values of each height group were at 13 years old/6 years old, 12 years old/6 years old, 7 years old/12 years old, and 6 years old/11 years old, respectively. 【Conclusions】 The overall height level of children in Nanning is still lower than the national level, with short prepubertal basal heights, an earlier age of onset of accelerated pubertal height, and a shorter duration of accelerated pubertal height in boys. Strengthening pre-pubertal height management and emphasizing the onset and duration of children′s pubertal development, especially the height development of boys during puberty, can help improve the adult lifelong height of children in this region.

Objective To construct a rational and efficient bed resource allocation management model to reduce pre-hos-pital waiting times,ensure patient safety,and improve satisfaction.Methods Based on lean management principles,a bed re-source allocation management model was developed and continuously optimized.The study compared bed turnover rates and effi-ciency indices,as well as preoperative waiting times for surgical patients,average length of stay,patient satisfaction,and anxiety incidence before and after the implementation of the lean model to evaluate its effectiveness.Results After implementing the lean bed resource allocation model,the bed efficiency index increased by 14.29％,and bed turnover rates improved by 3.34％.The average preoperative waiting time for surgical patients decreased by 100％,and the average length of stay reduced by 87.71％.Patient satisfaction increased by 2.4％,while anxiety incidence dropped by 28.1％.Conclusion The implementa-tion of a lean bed resource allocation model can enhance hospital bed efficiency,shorten preoperative waiting times for surgical patients,reduce average length of stay,and improve patient satisfaction.

Objective:To retrieve, evaluate and summarize the relevant evidence for respiratory management in patients with amyotrophic lateral sclerosis (ALS), and provide reference for clinical nursing.Methods:The best practices, guidelines, expert consensus and other evidence on respiratory management in ALS patients were systematically retrieved from dometic and foreign relevant guide websites, professional associations and databases. The retrieve period was from January 1, 2016 to April 15, 2023. After the literature quality evaluation, the evidence was extracted from the literature that meets the quality standards.Results:A total of 12 references were included, including 3 guidelines, 1 expert consensus, 1 evidence summary, 4 systematic reviews, and 3 randomized controlled trails. The 25 pieces of evidence were summarized from the patients with ALS, including respiratory assessment, mechanical ventilation, secreta management, and respiratory rehabilitation.Conclusions:This study summarizes the best evidence on respiratory tract management in patients with ALS, which is convenient for clinical medical personnel to carry out more targeted and scientific respiratory assessment, intervention and guidance for patients with ALS.

Objective To investigate the regulation of naringin on apoptosis of airway inflammatory cells in asthmatic mice and its relationship with Tas2rs.Methods 36 BALB/c mice were randomly divided into 6 groups(n=6):blank control group,ovalbumin model group(OVA),dexamethasone group(10 mg·kg-1,positive control drug),naringin low,medium and high dose groups(10,20,40 mg·kg-1).Airway asthma was induced by OVA in all groups except the blank control group.After continuous administration of solvent,dexamethasone or naringin for 6 days,the respiratory function and the number of cells in alveolar lavage fluid of mice were measured,the lung and airway morphology of mice were observed,respiratory resistance(Rrs),lung elastic resistance(Ers)and respiratory compliance(Crs)were measured,and mRNA expression levels of lung tissue-related pro-apoptotic factors were measured.The mRNA expression levels of Tas2rs and its downstream genes were determined.Results Compared with OVA model group,naringin could dose-dependent decrease Rrs and Ers,increase Crs,and decrease the number of leukocytes,eosinophils,lymphocytes and neutrophils.Compared with OVA model group,the infiltration of inflammatory cells in lung tissue was significantly reduced in high-dose naringin group,and the mRNA expression levels of Tas2r108,Tas2r135,Tas2r143 and their downstream target genes α-gust and Trpm5 in lung and airway tissue were significantly decreased.The mRNA expression levels of proapoptotic factors P53,Bax and Casp3 were increased,while the mRNA expression levels of apoptosis inhibitor Bcl2 were decreased.Conclusion Naringin prophylactic administration can promote the activation of airway Tas2rs signal,decrease the number of airway inflammatory cells and alleviate airway injury in asthmatic mice.Naringin as a Tas2rs agonist can be developed as a potential anti-asthmatic agent.

Background::Limited information exists regarding the impact of severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) infection on psoriasis patients. The objective of this study was to identify clinical factors associated with the prognosis of psoriasis following SARS-CoV-2 infection.Methods::A retrospective, multicenter study was conducted between March and May 2023. Univariable and multivariable logistic regression analyses were employed to identify factors associated with coronavirus disease 2019 (COVID-19)-related psoriasis outcomes. The study included 2371 psoriasis patients from 12 clinical centers, with 2049 of them having been infected with SARS-CoV-2.Results::Among the infected groups, lower exacerbation rates were observed in individuals treated with biologics compared to those receiving traditional systemic or nonsystemic treatments (22.3% [236/1058] vs. 39.8% [92/231] vs. 37.5% [140/373], P <0.001). Psoriasis progression with lesions (adjusted odds ratio [OR] = 8.197, 95% confidence interval [95% CI] = 5.685–11.820, compared to no lesions), hypertension (adjusted OR = 1.582, 95% CI = 1.068–2.343), traditional systemic (adjusted OR = 1.887, 95% CI= 1.263–2.818), and nonsystemic treatment (adjusted OR= 1.602, 95% CI= 1.117–2.297) were found to be associated with exacerbation of psoriasis after SARS-CoV-2 infection, but not biologics (adjusted OR = 0.931, 95% CI = 0.680–1.274, compared to no treatment), according to multivariable logistic regression analysis. Conclusions::A reduced risk of psoriasis exacerbation after SARS-CoV-2 infection was observed with biologics compared to traditional systemic and nonsystemic treatments. Significant risk factors for exacerbation after infection were identified as existing psoriatic lesions and hypertension.

Objective:To discuss the damage effect of vesicular stomatitis virus(VSV)on the vascular endothelial(VE)barrier,and to clarify its mechanism.Methods:The canine kidney cells were used to amplify VSV.The half tissue culture infective dose(TCID50)of VSV was determined using mouse brain endothelial tumor bEnd.3 cells,and subsequent experiment was conducted using 300 times the TCID50.The bEnd.3 cells were divided into infection 0 h group,infection 4 h group,infection 8 h group,and infection 12 h group for VE barrier damage experiments due to VSV infection.The bEnd.3 cells were also divided into control group,infection group,and correction group for experiments to inhibit the VSV replication and restore the VE barrier.The bEnd.3 cells were inoculated into Transwell chambers to construct an in vitro VE barrier model.Cell voltage resistance meter was used to detect the transepithelial resistance(TER)in various groups after the bEnd.3 cells were infected with VSV at different time points;fluorescein isothiocyanate-dextran leakage assay was used to detect the permeability coefficients of the cells in various groups;immunofluorescence staining was used to observe the localization changes of VE-cadherin,β-catenin,and phosphorylated β-catenin(p-β-catenin)in cytoskeleton and adherens junctions(AJs)of the bEnd.3 cells after VSV infection;real-time fluorescence quantitative PCR(RT-qPCR)method was used to detect the expression levels of Wnt and β-catenin mRNA in the cells in various groups;Western blotting method was used to detect the expression levels of Wnt,β-catenin,and p-β-catenin proteins in the cells in various groups.Results:The TCID50 of VSV was 10-4.5·100 μL-1.TheTranswell chamber experiment results showed that compared with infection 0 h group,the TERs in the cells in the other groups were significantly decreased(P＜0.05),and the permeability coefficients were significantly increased(P＜0.05).The immunofluorescence staining results showed that compared with control group,the cytoskeleton of the bEnd.3 cells in infection group was disordered,the cell gaps was increased,the linear index of AJs was significantly decreased(P＜0.05),and β-catenin and p-β-catenin translocated from the cell membrane to the perinuclear area.The RT-qPCR results showed that compared with infection 0 h group,the expression levels of Wnt mRNA in the cells in the other groups were significantly decreased(P＜0.05),while the expression levels of β-catenin mRNA showed no statistically significant difference(P＞0.05).The Western blotting results showed that compared with infection 0 h group,the expression levels of Wnt protein in the cells in the other groups were significantly decreased(P＜0.05),the expression levels of β-catenin showed no statistically significant differences(P＞0.05),and the expression levels of p-β-catenin were significantly increased(P＜0.05).After inhibiting the VSV replication and correcting the low density lipoprotein receptor(LDLR)abnormalities,the Transwell chamber experiment results showed that compared with infection group,the TER in the cells in correction group was significantly increased(P＜0.05),and the permeability coefficient was significantly decreased(P＜0.05).The immunofluorescence staining results showed that compared with infection group,the gaps in the cells in correction group were reduced,and the perinuclear aggregation of β-catenin and p-β-catenin in the cells was restrained.The RT-qPCR results showed that compared with infection group,the expression level of Wnt mRNA in the cells in correction group was significantly increased(P＜0.05).The Western blotting results showed that compared with infection group,the expression level of Wnt protein in the cells in correction group was significantly increased(P＜0.05),the expression level of β-catenin showed no statistically significant difference(P＞0.05),and the expression level of p-P-catenin was significantly decreased(P＜0.05).Conclusion:VSV infection can cause the LDLR inactivation,reduce the expression level of Wnt protein,increase the phosphorylation level of β-catenin and cause its internalization,disrupt the stability of AJs,and ultimately lead to VE barrier damage.

Objective:To explore the application of virtual augmented reality (AR) technology combined with transcranial Doppler ultrasound (TCD) in nursing teaching of cerebrovascular diseases.Methods:Eighty-six nursing students who interned in the Department of Neurology of The First Affiliated Hospital of Army Medical University from January 2021 to November 2022 were assigned into control group (students of grade 2021) and research group (students of grade 2022). The control group received traditional teaching with AR technology about the anatomy of the cerebral arterial circle, its composition, and adjacent structures. The research group was given AR-assisted teaching combined with TCD-based demonstration and interpretation. At the end of internship, the assessment scores, satisfaction with teaching, clinical decision-making ability, self-learning ability, and problem-solving ability were compared between the two groups. SPSS 23.0 was used to perform the non-parametric test, t test, and chi-square test. Results:The theoretical, practical, and comprehensive ability assessment scores of the research group [90 (89, 96), 95 (90, 96), and 93 (90, 96), respectively] were significantly higher than those of the control group [89 (87, 91), 90 (89, 92), and 91 (89, 94), respectively]. In terms of satisfaction with teaching effects, teaching methods, teaching content, and teaching style, the scores of the research group [16 (15, 18), (5.98±0.91), (3.38±0.52), and 13 (11, 14), respectively] were significantly higher than those of the control group [14 (13, 16), (4.23±0.65), (2.37±0.36), and 13 (10, 14 ), respectively]. The research group showed significantly better independent learning abilities than the control group in information seeking [(4.66±0.71) vs. (4.00±0.61)] and solution seeking [(4.43±0.68) vs. (4.41±0.67)], with no significant differences in the other dimensions between the two groups. The research group was significantly superior to the control group in all problem-solving dimensions: positive orientation [12 (10, 12) vs. 10 (9, 11)], rationality [26 (23, 28) vs. 21 (21, 24)], negative orientation [15 (13, 20) vs. 20 (17, 20)], avoidance style [17 (15, 18) vs. 19 (17, 20)], and impulsivity/neglect style [16 (15, 18) vs. 18 (16, 20)]. For rounds assessment, the research group showed significantly higher scores than the control group in all the items except " communication with patients" [(9.21±0.39) vs. (9.04±0.53)] and "patient satisfaction with nursing students" [(8.92±0.53) vs. (8.73±0.56)].Conclusions:The teaching method based on AR combined with TCD can improve nursing students' knowledge of cerebrovascular diseases, clinical nursing ability, and satisfaction with teaching.