This study aims to investigate the ameliorating effect of Corni Fructus(CF) on the myocardial ischemic injury and the pharmacokinetic properties of characteristic components of CF. The mouse model of isoproterenol-induced myocardial ischemia was established and administrated with the aqueous extract of CF. The general efficacy of CF in ameliorating the myocardial ischemic injury was evaluated based on the cardiac histopathology and the levels of myocardial injury markers: creatine kinase isoenzyme(CK-MB) and cardiac troponin I(cTn-I). The metabolomics analysis was carried out for the heart and serum samples of mice to screen the biomarkers of CF in ameliorating the myocardial ischemic injury and then the predicted biomarkers were submitted to metabolic pathway enrichment. The pharmacokinetic analysis was performed for morroniside, loganin, and cornuside Ⅰ in mouse heart and serum samples to obtain the pharmacokinetic parameters of these components. The pharmacokinetic parameters were then integrated on the basis of self-defined weighting coefficients to simulate an integrated pharmacokinetic profile of CF iridoid glycosides in the heart and serum of the mouse model of myocardial ischemia. The results indicated that CF reduced the pathological damage to cardiac cells and tissue(hematoxylin-eosin staining) and lowered the levels of CK-MB and cTn-I in the serum of the mouse model of myocardial ischemia(P<0.01). Metabolomics analysis screed out 31 endogenous metabolites in the heart and 35 in the serum as biomarkers of CF in ameliorating the myocardial ischemic injury. These biomarkers were altered by modeling and restored by CF. Six metabolic pathways in the heart and 5 in the serum were enriched based on these metabolic markers. The main integrated pharmacokinetic parameters of CF iridoid glycosides were T_(max)=1 h, t_(1/2)=(1.52±0.05) h in the heart and T_(max)=1 h, t_(1/2)=(1.56±0.50) h in the serum. Both concentration-time curves showed a double-peak phenomenon. In conclusion, CF demonstrated the cardioprotective effect by regulating metabolic pathways such as taurine and hypotaurine metabolism, and pantothenic acid and coenzyme A biosynthesis. The integrated pharmacokinetics reflect the general pharmacokinetic properties of characteristic components in CF.
Animals ; Cornus/chemistry* ; Mice ; Metabolomics ; Drugs, Chinese Herbal/administration & dosage* ; Male ; Myocardial Ischemia/metabolism* ; Humans ; Troponin I/metabolism* ; Myocardium/pathology* ; Disease Models, Animal ; Biomarkers/metabolism* ; Creatine Kinase, MB Form/metabolism*

Objective To establish an ICU nursing shift handover index based on the standardised communication framework of ISBAR(Identity,Situation,Background,Assessment,and Recommendation)and create an intelligent nursing shift handover system(hereinafter referred as"Smart ICU-ISBAR Nursing Shift Handover System"),thereby improving the standardisation,efficiency and quality of ICU nursing shift handovers with a standardised tool for planning ICU nursing shift handovers.Methods Literature was searched to identify the core elements of ISBAR and the key contents of ICU nursing shift handovers,then a preliminary draft of ICU nursing shift handover index was proposed.Delphi expert-consensus technique(20 experts)was used to screen and finalise the core dimensions and specific indicators of the index system,which were then integrated into the Smart ICU-ISBAR Nursing Handover System.Finally,the clinical effectiveness of the system was evaluated.Results Both Delphi rounds achieved 100.00%response rate.The expert authority coefficient was 0.83.The Kendall's W values of 2 rounds were 0.127 and 0.166(all P<0.001)respectively.The index importance scores ranged from 4.25-4.95 and 3.90-5.00,with coefficients of variation of 0.05-0.19 and 0.00-0.22,respectively.The final version of Smart ICU-ISBAR nursing shift handover system comprised 6 primary indicators and 60 secondary indicators.Over the clinical trials,the system achieved a 96.67%success rate in data-upload with an average response time of 1.80 sec.,the mean documentation time of shift handover at(1.97±0.58)min per patient,12 nurses'satisfaction with the shift handover quality of(4.47±0.25)and the rating of the system's usability of(4.75±0.08).The system was highly practical,convenient and intelligent.Conclusion The ICU nursing shift handover index system developed on the basis of ISBAR theory features a structural integrity,standardisation and ICU-specific characteristics and it is objective,scientific and rigorous.The Smart ICU-ISBAR Nursing Shift Handover System standardises the shift handover process,reduces information omissions,and improves efficiency and quality of nursing shift handover process.It serves as a standardised shift handover tool for ICU nursing shifts.

Objective To develop a refined management model for operating rooms and assess its clinical impact on op-erational efficiency and cost control.Methods The study included 10,728 elective surgeries from January to June 2024 as the study group and 9 414 elective surgeries from January to June 2023 as the control group.The differences in operational metrics before and after implementing the refined management model were compared.The model was developed through comprehensive management by hospital leadership and multi-department collaboration,focusing on management structure,systems,processes,information technology,and resource allocation.Results In terms of efficiency,the on-time start rate of the first surgeries in the study group was significantly higher than in the control group(P＜0.05).The turnover time between surgeries was shorter in the study group(P＜0.01),and the rate of unexpected surgery cancellations was lower(P＜0.01).The average cost per surgery for consumables,excluding the impact of centralized procurement of consumables,was approximately 971 yuan,representing an 11% reduction compared to the previous year,despite a 14% increase in surgical volume.The average daily operating cost per operating room was about 12 303 yuan,a 7% reduction.Economic benefits increased by 8.43 million yuan,a 38% year-on-year increase.Conclusion Implementing a refined management model in operating rooms can significantly enhance efficiency,re-duce costs,and achieve dual improvements in social and economic benefits.

Thoracic anesthesia with spontaneous respiration represents a form of precision anesthesia meticulously customized to individual patients.Considering the more stringent requirements this anesthesia approach imposes on the regulation of respiratory function,the writing group of the"Consensus of Experts on the Management of Thoracic Anesthesia with Spontaneous Respiration"has formulated elaborate guidelines regarding indications and contraindications,preoperative evaluation,anesthesia implementation,common complications,and treatment strategies.This was accomplished by referencing relevant domestic and international literature and integrating it with actual clinical requirements.The objective is to standardize the rational application of this anesthesia method.

Objective To establish an ICU nursing shift handover index based on the standardised communication framework of ISBAR(Identity,Situation,Background,Assessment,and Recommendation)and create an intelligent nursing shift handover system(hereinafter referred as"Smart ICU-ISBAR Nursing Shift Handover System"),thereby improving the standardisation,efficiency and quality of ICU nursing shift handovers with a standardised tool for planning ICU nursing shift handovers.Methods Literature was searched to identify the core elements of ISBAR and the key contents of ICU nursing shift handovers,then a preliminary draft of ICU nursing shift handover index was proposed.Delphi expert-consensus technique(20 experts)was used to screen and finalise the core dimensions and specific indicators of the index system,which were then integrated into the Smart ICU-ISBAR Nursing Handover System.Finally,the clinical effectiveness of the system was evaluated.Results Both Delphi rounds achieved 100.00%response rate.The expert authority coefficient was 0.83.The Kendall's W values of 2 rounds were 0.127 and 0.166(all P<0.001)respectively.The index importance scores ranged from 4.25-4.95 and 3.90-5.00,with coefficients of variation of 0.05-0.19 and 0.00-0.22,respectively.The final version of Smart ICU-ISBAR nursing shift handover system comprised 6 primary indicators and 60 secondary indicators.Over the clinical trials,the system achieved a 96.67%success rate in data-upload with an average response time of 1.80 sec.,the mean documentation time of shift handover at(1.97±0.58)min per patient,12 nurses'satisfaction with the shift handover quality of(4.47±0.25)and the rating of the system's usability of(4.75±0.08).The system was highly practical,convenient and intelligent.Conclusion The ICU nursing shift handover index system developed on the basis of ISBAR theory features a structural integrity,standardisation and ICU-specific characteristics and it is objective,scientific and rigorous.The Smart ICU-ISBAR Nursing Shift Handover System standardises the shift handover process,reduces information omissions,and improves efficiency and quality of nursing shift handover process.It serves as a standardised shift handover tool for ICU nursing shifts.

Objective To develop a refined management model for operating rooms and assess its clinical impact on op-erational efficiency and cost control.Methods The study included 10,728 elective surgeries from January to June 2024 as the study group and 9 414 elective surgeries from January to June 2023 as the control group.The differences in operational metrics before and after implementing the refined management model were compared.The model was developed through comprehensive management by hospital leadership and multi-department collaboration,focusing on management structure,systems,processes,information technology,and resource allocation.Results In terms of efficiency,the on-time start rate of the first surgeries in the study group was significantly higher than in the control group(P＜0.05).The turnover time between surgeries was shorter in the study group(P＜0.01),and the rate of unexpected surgery cancellations was lower(P＜0.01).The average cost per surgery for consumables,excluding the impact of centralized procurement of consumables,was approximately 971 yuan,representing an 11% reduction compared to the previous year,despite a 14% increase in surgical volume.The average daily operating cost per operating room was about 12 303 yuan,a 7% reduction.Economic benefits increased by 8.43 million yuan,a 38% year-on-year increase.Conclusion Implementing a refined management model in operating rooms can significantly enhance efficiency,re-duce costs,and achieve dual improvements in social and economic benefits.

Thoracic anesthesia with spontaneous respiration represents a form of precision anesthesia meticulously customized to individual patients.Considering the more stringent requirements this anesthesia approach imposes on the regulation of respiratory function,the writing group of the"Consensus of Experts on the Management of Thoracic Anesthesia with Spontaneous Respiration"has formulated elaborate guidelines regarding indications and contraindications,preoperative evaluation,anesthesia implementation,common complications,and treatment strategies.This was accomplished by referencing relevant domestic and international literature and integrating it with actual clinical requirements.The objective is to standardize the rational application of this anesthesia method.

Umbilical cord mesenchymal stem cells (UC-MSCs) have been widely used in regenerative medicine, but there is limited research on the stability of UC-MSCs formulation during production. This study aims to assess the stability of the cell stock solution and intermediate product throughout the production process, as well as the final product following reconstitution, in order to offer guidance for the manufacturing process and serve as a reference for formulation reconstitution methods. Three batches of cell formulation were produced and stored under low temperature (2-8 ℃) and room temperature (20-26 ℃) during cell stock solution and intermediate product stages. The storage time intervals for cell stock solution were 0, 2, 4, and 6 h, while for intermediate products, the intervals were 0, 1, 2, and 3 h. The evaluation items included visual inspection, viable cell concentration, cell viability, cell surface markers, lymphocyte proliferation inhibition rate, and sterility. Additionally, dilution and culture stability studies were performed after reconstitution of the cell product. The reconstitution diluents included 0.9% sodium chloride injection, 0.9% sodium chloride injection + 1% human serum albumin, and 0.9% sodium chloride injection + 2% human serum albumin, with dilution ratios of 10-fold and 40-fold. The storage time intervals after dilution were 0, 1, 2, 3, and 4 h. The reconstitution culture media included DMEM medium, DMEM + 2% platelet lysate, 0.9% sodium chloride injection, and 0.9% sodium chloride injection + 1% human serum albumin, and the culture duration was 24 h. The evaluation items were viable cell concentration and cell viability. The results showed that the cell stock solution remained stable for up to 6 h under both low temperature (2-8 ℃) and room temperature (20-26 ℃) conditions, while the intermediate product remained stable for up to 3 h under the same conditions. After formulation reconstitution, using sodium chloride injection diluted with 1% or 2% human serum albumin maintained a viability of over 80% within 4 h. It was observed that different dilution factors had an impact on cell viability. After formulation reconstitution, cultivation in medium with 2% platelet lysate resulted in a cell viability of over 80% after 24 h. In conclusion, the stability of cell stock solution within 6 h and intermediate product within 3 h meets the requirements. The addition of 1% or 2% human serum albumin in the reconstitution diluent can better protect the post-reconstitution cell viability.

Objective To analyze the prognostic significance and biological effects of cytochrome P450 family 27 subfamily A member 1(CYP27A1)in hepatocellular carcinoma(HCC),and to preliminarily explore its molecular mechanism of regulating the malignant growth of HCC.Methods The Cance Genome Atlas(TCGA)database was used to analyze the expression level of CYP27A1 and its prognostic effect on HCC patients.The samples were divided into CYP27A1 high-expression group(n=170)and low-expression group(n=170)based on the median expression of CYP27A1 in HCC,gene set enrichment analysis(GSEA)was performed to investigate gene sets associated with CYP27A1 expression.The subcellular localization of CYP27A1 was detected by immunofluorescence staining and search database.The over-expression plasmid of CYP27A1 was constructed and then transfected into the HCC cells MHCC-97H and HCCLM3 cell lines,including two groups,namely control group(transfecting empty vector)and CYP27A1 over-expression group(transfecting CYP27A1 over-expressed vector).CCK-8,flow cytometer,and reactive oxygen species(ROS)fluorescence probe were applied to detect the effects of CYP27A1 over-expression on cell viability,apoptosis and ROS levels in HCC cells.Combining bioinformatics to analyze the correlation between CYP27A1 and the expression of ROS generation-related genes and HCC proliferation-related genes.Results Compared with the normal liver tissue,the expression level of CYP27A1 mRNA in HCC tissue was significantly reduced(P<0.01).The expression of CYP27A1 was significantly correlated with sex,T stage,tumor grade and tumor stage of HCC patients(P<0.05).Compared to the CYP27A1 high-expression group,patients in CYP27A1 low-expression group had lower survival rate(P<0.01).GSEA enrichment analysis revealed that the levels of HCC stem cell-related gene clusters and HCC proliferation gene clusters were remarkably increased in CYP27A1 low-expression group.The immunofluorescence showed that CYP27A1 was mainly located in nucleus in MHCC-97H and HCCLM3,whereas CYP27A1 was mainly located in mitochondria in HepG2.CYP27A1 over-expression attenuated cell viability(P<0.01),and reduced the ROS levels(P<0.05),whereas it had no effects on the apoptosis in HCC cells(P>0.05).The expression of CYP27A1 and the expression of inhibiting ROS generation-related genes were positively correlated(P<0.05),while the expression of inhibiting ROS generation-related genes and the expression of HCC proliferation-related genes were negatively correlated(P<0.05).Conclusions The expression of CYP27A1 was decreased in HCC,and down-regulated CYP27A1 promoted cell growth by enhancing ROS generation,although the precise mechanism requires future educidation.

Objective To evaluate the performance of two immunochromatography kits (lateral flow immunoassay) in detecting carbapenemases in carbapenem-resistant Enterobacterales (CRE).Methods A total of 390 nonduplicate clinical isolates of Enterobacterales were collected and tested.The carbapenemase gene was identified by polymerase chain reaction (PCR).The five common carbapenemases were tested by two immunochromatography kits.Results Overall,213 of the 390 Enterobacterales isolates were CRE and 177 strains were carbapenem-susceptible based on antimicrobial susceptibility testing.PCR assay confirmed that 207 of the 213 CRE strains carried carbapenemase genes,including KPC genotype in 119 strains,NDM genotype in 71 strains,IMP genotype in 9 strains,OXA-48-like genotype in 7 strains,both KPC and NDM genes in 1 strain,while none of the five common carbapenemases in 6 CRE strains.Two immunochromatography kits were used simultaneously to test the production of carbapenemases.The results of the two commercial kits were 100％ consistent with PCR results.The sensitivity and specificity of the two kits were 100％ (95％ CI,97.7％-100％) and 100％ (95％ CI,97.4％-100％) in detection of the five carbapenemases.Conclusions The immunochromatography method is rapid and easy to operate,and can be used to detect the production of carbapenmases in clinical isolates.