Objective To explore the effect of delayed Kirschner wire fixation after emergency pre-reduction with traditional Chinese medicine bone-setting manipulation in the treatment of supracondylar fracture of humerus in children.Methods Sixty patients with supracondylar fracture of humerus admitted to Jiangxi Provincial Children's Hospital from June 2022 to June 2023 were selected and divided into observation group and control group according to the random number table method,with 30 cases in each group.The observation group adopted emergency pre-reduction with traditional Chinese medicine bone-setting manipulation and delayed surgical reduction,and the control group underwent delayed surgical reduction.The operation time,intraoperative fluoroscopy frequency,reduction condition,postoperative complications,elbow joint function at the last follow-up of two groups of children were compared.Results The operation time of children in observation group was significantly shorter than that in control group,and the number of fluoroscopy was significantly less than that in control group(P＜0.05).The proportion of anatomical reduction in observation group was significantly higher than that in control group(P＜0.05).There was no statistically significant difference in fracture healing time between two groups of children(P＞0.05).Neither of two groups of children had conversion incision,postoperative re-displacement of fractures,nerve injury,infection,cubitus varus or elbow valgus deformity,etc..At the last follow-up,there was no statistically significant difference in the excellent and good rate of elbow joint function between two groups of children(P=0.301).Conclusion Emergency traditional Chinese medicine bone-setting manipulation in the treatment of supracondylar fracture of humerus in children can shorten the operation time,reduce the radiation dose,alleviate the burden of emergency medical treatment,have no obvious complications,and have a good effect.It is worthy of promotion.

Objective This study aimed to investigate the antimicrobial resistance profiles of bacterial strains isolated from pediatric intensive care units(PICU)in China for better antimicrobial therapy.Methods Clinical isolates were collected from 17 institutions,including tertiary care children's hospitals and pediatric department of tertiary general hospitals in China from January 1,2020 to December 31,2022.Antimicrobial susceptibility testing was carried out according to a unified protocol using Kirby-Bauer method or automated systems.Results were interpreted according to the breakpoints released by the Clinical and Laboratory Standards Institute(CLSI)in 2020.Results A total of 10 688 isolates were collected,including gram-positive organisms(39.2％)and gram-negative organisms(60.8％).The top three organisms were S.aureus(13.6％,1 453/10 688),A.baumannii(10.0％,1 067/10 688),and coagulase-negative Staphylococcus(9.9％,1 058/10 688).Multi-drug resistant organisms(MDROs)were very common in children.The prevalence of methicillin-resistant Staphylococcus aureus(MRSA),carbapenem-resistant Enterobacterales(CRE),carbapenem-resistant E.coli,carbapenem-resistant K.pneumoniae(CRKP),carbapenem-resistant A.baumannii(CRAB),and carbapenem-resistant P.aeruginosa(CRPA)was 41.1％,19.4％,8.8％,30.9％,67.4％,and 28.8％,respectively.Overall,more than 50％of Enterobacteriales isolates were resistant to cephalosporins,while nearly 25％of Enterobacteriales isolates were resistant to carbapenems.MDROs were highly resistant to commonly used antibiotics.More than 80％of CRE and CRAB strains were resistant to all beta-lactam antibiotics.CRE and CRAB showed low resistance rates to tigecycline and polymyxin.CRPA showed lower resistance rates to piperacillin,beta-lactamase inhibitor combinations than the resistance rates to third and fourth generation cephalosporins.All of the Staphylococcus and Enterococcus isolates were susceptible to vancomycin and tigecycline.None of PRSP strains isolated from meningitis and nonmeningitis samples were resistant to rifampicin,vancomycin,or linezolid.The prevalence of β-lactamase-negative ampicillin-resistant(BLNAR)strains was 43.3％in Haemophilus influenzae.Conclusions MDROs were prevalent in PICU.It is necessary to establish an effective multidisciplinary team(MDT)to control the antimicrobial resistance.

Objective:To analyze the expression level of protein arginine methyltransferase 5 (PRMT5) in pancreatic cancer tissues and its correlation with prognosis using bioinformatics methods, and to explore its potential mechanisms.Methods:Expression analysis of the PRMTs family members was performed based on the gene expression profiles of 178 pancreatic cancer tissues from the Gene Expression Profiling Interactive Analysis (GEPIA) database and 171 normal pancreatic tissues from the TCGA and GTEx databases. Using the median expression level of PRMTs family members in pancreatic cancer tissues as the cutoff, patients were divided into high-expression and low-expression groups, and Kaplan-Meier curves for overall survival (OS) and disease-free survival (DFS) were plotted. The correlation between PRMT5 expression and the expression of oncogenes such as KRAS, TP53, BRCA1, BRCA2, and SLC39A4 was analyzed. Functional enrichment analysis was conducted on genes similar to PRMT5, and a protein-protein interaction (PPI) network was constructed to analyze the interaction relationships among these similar genes. Pancreatic cancer PANC1 and AsPC-1 cells cultured in standard medium served as the control group, while PANC1 and AsPC-1 cells cultured in medium supplemented with the PRMT5 inhibitor EPZ015666 served as the intervention group. Cell viability was assessed using the CCK-8 assay, and cell cycle progression was analyzed by flow cytometry.Results:The expression level of PRMT5 in pancreatic cancer tissues was significantly higher than that in normal pancreatic tissues and showed a significant negative correlation with both OS and DFS. Patients with high PRMT5 expression had a shorter median survival time compared to those with low expression (17.2 months vs 19.5 months). PRMT5 expression was significantly positively correlated with the expression of oncogenes KRAS, TP53, BRCA1, BRCA2, SLC39A4, and KLF5. Genes similar to PRMT5 were primarily enriched in cell cycle-related signaling pathways, and NOP58 identified as a hub gene in the PPI network. Compared to the control group, the proliferation activity of PANC1 and AsPC-1 cells in the intervention group was significantly reduced [(67.3±1.9)% vs (100±4.4)% for PANC1; (60.5±2.7)% vs (100.0±1.7)% for AsPC-1], and the proportion of cells in the G1 phase was significantly increased [(51.6±0.7)% vs (35.3±2.7)% for PANC1; (51.2±0.9)% vs (29.7±2.2)% for AsPC-1]. All these differences were statistically significant (all P values <0.05). Conclusions:High expression of PRMT5 was closely associated with poor prognosis in pancreatic cancer patients, and it may contribute to pancreatic cancer progression by regulating the cell cycle.

Objective To explore the effect of delayed Kirschner wire fixation after emergency pre-reduction with traditional Chinese medicine bone-setting manipulation in the treatment of supracondylar fracture of humerus in children.Methods Sixty patients with supracondylar fracture of humerus admitted to Jiangxi Provincial Children's Hospital from June 2022 to June 2023 were selected and divided into observation group and control group according to the random number table method,with 30 cases in each group.The observation group adopted emergency pre-reduction with traditional Chinese medicine bone-setting manipulation and delayed surgical reduction,and the control group underwent delayed surgical reduction.The operation time,intraoperative fluoroscopy frequency,reduction condition,postoperative complications,elbow joint function at the last follow-up of two groups of children were compared.Results The operation time of children in observation group was significantly shorter than that in control group,and the number of fluoroscopy was significantly less than that in control group(P＜0.05).The proportion of anatomical reduction in observation group was significantly higher than that in control group(P＜0.05).There was no statistically significant difference in fracture healing time between two groups of children(P＞0.05).Neither of two groups of children had conversion incision,postoperative re-displacement of fractures,nerve injury,infection,cubitus varus or elbow valgus deformity,etc..At the last follow-up,there was no statistically significant difference in the excellent and good rate of elbow joint function between two groups of children(P=0.301).Conclusion Emergency traditional Chinese medicine bone-setting manipulation in the treatment of supracondylar fracture of humerus in children can shorten the operation time,reduce the radiation dose,alleviate the burden of emergency medical treatment,have no obvious complications,and have a good effect.It is worthy of promotion.

Objective This study aimed to investigate the antimicrobial resistance profiles of bacterial strains isolated from pediatric intensive care units(PICU)in China for better antimicrobial therapy.Methods Clinical isolates were collected from 17 institutions,including tertiary care children's hospitals and pediatric department of tertiary general hospitals in China from January 1,2020 to December 31,2022.Antimicrobial susceptibility testing was carried out according to a unified protocol using Kirby-Bauer method or automated systems.Results were interpreted according to the breakpoints released by the Clinical and Laboratory Standards Institute(CLSI)in 2020.Results A total of 10 688 isolates were collected,including gram-positive organisms(39.2％)and gram-negative organisms(60.8％).The top three organisms were S.aureus(13.6％,1 453/10 688),A.baumannii(10.0％,1 067/10 688),and coagulase-negative Staphylococcus(9.9％,1 058/10 688).Multi-drug resistant organisms(MDROs)were very common in children.The prevalence of methicillin-resistant Staphylococcus aureus(MRSA),carbapenem-resistant Enterobacterales(CRE),carbapenem-resistant E.coli,carbapenem-resistant K.pneumoniae(CRKP),carbapenem-resistant A.baumannii(CRAB),and carbapenem-resistant P.aeruginosa(CRPA)was 41.1％,19.4％,8.8％,30.9％,67.4％,and 28.8％,respectively.Overall,more than 50％of Enterobacteriales isolates were resistant to cephalosporins,while nearly 25％of Enterobacteriales isolates were resistant to carbapenems.MDROs were highly resistant to commonly used antibiotics.More than 80％of CRE and CRAB strains were resistant to all beta-lactam antibiotics.CRE and CRAB showed low resistance rates to tigecycline and polymyxin.CRPA showed lower resistance rates to piperacillin,beta-lactamase inhibitor combinations than the resistance rates to third and fourth generation cephalosporins.All of the Staphylococcus and Enterococcus isolates were susceptible to vancomycin and tigecycline.None of PRSP strains isolated from meningitis and nonmeningitis samples were resistant to rifampicin,vancomycin,or linezolid.The prevalence of β-lactamase-negative ampicillin-resistant(BLNAR)strains was 43.3％in Haemophilus influenzae.Conclusions MDROs were prevalent in PICU.It is necessary to establish an effective multidisciplinary team(MDT)to control the antimicrobial resistance.

Objective:To analyze the expression level of protein arginine methyltransferase 5 (PRMT5) in pancreatic cancer tissues and its correlation with prognosis using bioinformatics methods, and to explore its potential mechanisms.Methods:Expression analysis of the PRMTs family members was performed based on the gene expression profiles of 178 pancreatic cancer tissues from the Gene Expression Profiling Interactive Analysis (GEPIA) database and 171 normal pancreatic tissues from the TCGA and GTEx databases. Using the median expression level of PRMTs family members in pancreatic cancer tissues as the cutoff, patients were divided into high-expression and low-expression groups, and Kaplan-Meier curves for overall survival (OS) and disease-free survival (DFS) were plotted. The correlation between PRMT5 expression and the expression of oncogenes such as KRAS, TP53, BRCA1, BRCA2, and SLC39A4 was analyzed. Functional enrichment analysis was conducted on genes similar to PRMT5, and a protein-protein interaction (PPI) network was constructed to analyze the interaction relationships among these similar genes. Pancreatic cancer PANC1 and AsPC-1 cells cultured in standard medium served as the control group, while PANC1 and AsPC-1 cells cultured in medium supplemented with the PRMT5 inhibitor EPZ015666 served as the intervention group. Cell viability was assessed using the CCK-8 assay, and cell cycle progression was analyzed by flow cytometry.Results:The expression level of PRMT5 in pancreatic cancer tissues was significantly higher than that in normal pancreatic tissues and showed a significant negative correlation with both OS and DFS. Patients with high PRMT5 expression had a shorter median survival time compared to those with low expression (17.2 months vs 19.5 months). PRMT5 expression was significantly positively correlated with the expression of oncogenes KRAS, TP53, BRCA1, BRCA2, SLC39A4, and KLF5. Genes similar to PRMT5 were primarily enriched in cell cycle-related signaling pathways, and NOP58 identified as a hub gene in the PPI network. Compared to the control group, the proliferation activity of PANC1 and AsPC-1 cells in the intervention group was significantly reduced [(67.3±1.9)% vs (100±4.4)% for PANC1; (60.5±2.7)% vs (100.0±1.7)% for AsPC-1], and the proportion of cells in the G1 phase was significantly increased [(51.6±0.7)% vs (35.3±2.7)% for PANC1; (51.2±0.9)% vs (29.7±2.2)% for AsPC-1]. All these differences were statistically significant (all P values <0.05). Conclusions:High expression of PRMT5 was closely associated with poor prognosis in pancreatic cancer patients, and it may contribute to pancreatic cancer progression by regulating the cell cycle.

Objective To explore the construction of a core competency framework and content for higher vocational speech-lan-guage-hearing rehabilitation technology programs based on World Health Organization rehabilitation competency framework(RCF). Methods Utilizing RCF and integrating the educational objectives for higher vocational speech-language-hearing reha-bilitation programs outlined by the Ministry of Education in 2022,as well as the technical documents from the In-ternational Association of Logopedics and Phoniatrics and the American Speech-Language-Hearing Association,this study analyzed the professional activities in speech-language-hearing rehabilitation technology to construct a competency framework based on RCF and give details in the specific content of each domain. Results The competency for speech-language-hearing rehabilitation technology encompassed seven domains:core val-ues,beliefs,practice,professionalism,learning and development,management and leadership,and research.Each domain was subdivided into specific competency elements and professional activities. Conclusion Establishing a higher vocational education system for speech-language-hearing rehabilitation technology based on RCF will help to set educational objectives,and construct curriculum systems,so that to cultivate practi-tioner who meet social needs and possess comprehensive professional skills and competencies.

Objective To analyze the core curricula framework of speech-language-hearing rehabilitation technology in vocational colleges,and formulate the course objectives,content and teaching methods.By constructing competency-orient-ed curricula,it is aimed to develop comprehensive competencies among students,and ensure they can meet di-verse service needs. Methods WHO rehabilitation competency framework(RCF)5+2 structure was adopted to systematically analyze the ob-jectives,content,instruction and evaluation approaches of eight core curricula in speech-language-hearing reha-bilitation technology at vocational colleges.By incorporating international standards from International Associa-tion of Logopedics and Phoniatrics and American Speech-Language-Hearing Association,the core curricula framework was designed to meet the educational needs in China.A contextualized teaching method that empha-sizes the integration of theory and practice was employed to ensure the comprehensive development of students'knowledge,skills,and professional competencies. Results A curricula framework that integrating theory with practice was established using RCF,covering various aspects from assessment to rehabilitation interventions.The content of eight core curricula and the corresponding rehabil-itation competencies were systematically analyzed using RCF,thereby systematic course objectives,content and teaching methods were constructed.This curricula framework encompassed core knowledge,skills and competen-cies in rehabilitation sciences,in order to ensure that students were equipped to handle complex service situations. Conclusion It is valuable to develop the competency-based core curricula for speech-language-hearing rehabilitation technology using RCF,for advancing competency-oriented vocational education.These curricula not only align with the current demand for highly skilled professionals in the rehabilitation industry,but also lay a foundation for students'continuous professional development.By emphasizing practical skills and interdisciplinary collabo-ration,the courses enable students to effectively function in dynamic rehabilitation environments,meeting di-verse rehabilitation needs.

Objective:To establish an animal model of trichloroethylene (TCE) -induced liver cancer following chronic exposure and to understand the changes in SET expression and histone acetylation, potentially serving as a molecular mechanism for TCE-induced hepatocarcinogenesis.Methods:B6C3 mice at 6 weeks were treated with TCE at a series of doses (500, 1000 and 2000 mg/kg) by gastric gavage, with corn oil used as the negative control and carbon tetrachloride (CCl 4) as the positive control. The serum and liver were sampled for the determination of biochemical indexes and pathological examination after 56 weeks of chemical exposure. Western blot was used to determine the levels of SET, H2AK9ac and HDAC1 expression. Results:The overall survival rate of the mice in various groups was 90.4% (141/156) , with no statistical difference between groups ( P>0.05) . Compared with the negative control, the organ coefficient for the liver in the high dose TCE group and the positive control group were significantly increased ( P<0.05) . The levels of ALT, AST, LDH and BUN in the all the three TCE groups and the positive control were significantly higher than those in the negative control ( P<0.01) . CREA levels in the 1000 and 2000 mg/kg TCE groups were significantly higher than those in the negative control ( P<0.05) . Statistical increases in the incidence of hepatocellular carcinoma and the activities of ALT and AST in various doses of TCE-exposed mice as compared with the control were observed ( P<0.01) , in a dose-dependent manner. In the 1000 and 2000 mg/kg of TCE treated mice, levels of SET and H2AK9ac were increased ( P<0.05) , while HDAC1 was decreased ( P<0.05) , Compared to the tissue adjacent to liver cancer, in the 1000 and 2000 mg/kg TCE groups, the levels of SET were increased ( P<0.05) , while HDAC1 was decreased ( P<0.05) , and H2AK9ac increased in the 2000 mg/kg group. Conclusion:The hepatocellular carcinoma mouse model induced by chronic exposure to trichloroethylene was successfully established, with enhanced SET protein expression and H2AK9ac in the hepatic tissue.

Objective:To establish an animal model of trichloroethylene (TCE) -induced liver cancer following chronic exposure and to understand the changes in SET expression and histone acetylation, potentially serving as a molecular mechanism for TCE-induced hepatocarcinogenesis.Methods:B6C3 mice at 6 weeks were treated with TCE at a series of doses (500, 1000 and 2000 mg/kg) by gastric gavage, with corn oil used as the negative control and carbon tetrachloride (CCl 4) as the positive control. The serum and liver were sampled for the determination of biochemical indexes and pathological examination after 56 weeks of chemical exposure. Western blot was used to determine the levels of SET, H2AK9ac and HDAC1 expression. Results:The overall survival rate of the mice in various groups was 90.4% (141/156) , with no statistical difference between groups ( P>0.05) . Compared with the negative control, the organ coefficient for the liver in the high dose TCE group and the positive control group were significantly increased ( P<0.05) . The levels of ALT, AST, LDH and BUN in the all the three TCE groups and the positive control were significantly higher than those in the negative control ( P<0.01) . CREA levels in the 1000 and 2000 mg/kg TCE groups were significantly higher than those in the negative control ( P<0.05) . Statistical increases in the incidence of hepatocellular carcinoma and the activities of ALT and AST in various doses of TCE-exposed mice as compared with the control were observed ( P<0.01) , in a dose-dependent manner. In the 1000 and 2000 mg/kg of TCE treated mice, levels of SET and H2AK9ac were increased ( P<0.05) , while HDAC1 was decreased ( P<0.05) , Compared to the tissue adjacent to liver cancer, in the 1000 and 2000 mg/kg TCE groups, the levels of SET were increased ( P<0.05) , while HDAC1 was decreased ( P<0.05) , and H2AK9ac increased in the 2000 mg/kg group. Conclusion:The hepatocellular carcinoma mouse model induced by chronic exposure to trichloroethylene was successfully established, with enhanced SET protein expression and H2AK9ac in the hepatic tissue.