Objective To investigate the effect of miR-486-5P on ferroptosis in H9c2 cardiomyocytes after hypoxia/reoxygenation(H/R),and to analyze its mechanism.Methods Using H9c2 cardiomyocytes as the research object,a H/R injury model was established using cobalt chloride(CoCl2)and fresh culture medium.The cells were divided into control group,H/R group,H/R+miR-486-5P mimic NC group,H/R+miR-486-5P mimic group,H/R+miR-486-5P inhibitor NC group and H/R+miR-486-5P inhibitor group.The relative expression level of miR-486-5P was detected by quantitative reverse transcription-polymerase chain reaction(qRT-PCR).The cell viability was detected by CCK-8 method.The activities or levels of lactate dehydrogen-ase(LDH),glutathione(GSH),Fe2+and malondialdehyde(MDA)were detected by colorimetric method.The levels of reactive oxygen species(ROS)and mitochondrial membrane potential(MMP)were detected by DCFH-DA fluorescent probe and JC-1 assay,respectively.Western blot was used to detect the levels of AkT/mTOR signaling pathway proteins and ferroptosis related protein solute carrier family 7 member 11(SLC7A11),glutathione peroxidase 4(GPX4)and acyl-coa synthetase long chain family member 4(ACSL4).Results Compared with the control group,the level of miR-486-5P and cell viability in the H/R group de-creased significantly(P＜0.05),while LDH activity,MDA,Fe2+level,ROS level and ACSL4 protein level in-creased significantly(P＜0.05).The GSH,MMP,SLC7A11 and GPX4 levels and p-Akt/Akt and p-mTOR/mTOR ratios were significantly decreased(P＜0.05).After H/R treatment,compared with the H/R+miR-486-5P mimic NC group,the cell viability of the H/R+miR-486-5P mimic group was significantly increased(P＜0.05).The LDH activity,MDA,Fe2+level,ROS level and ACSL4 protein level were significantly de-creased(P＜0.05),while GSH,MMP,SLC7A11 and GPX4 levels and p-Akt/Akt and p-mTOR/mTOR ratios were significantly increased(P＜0.05).Compared with the H/R+miR-486-5P inhibitor NC group,the trend of the above indicators in the H/R+miR-486-5P inhibitor group was opposite.Conclusion miR-486-5P allevi-ates hypoxia/reoxygenation-induced ferroptosis in H9c2 cells by regulating Akt/mTOR signaling pathway,and thus alleviates hypoxia/reoxygenation induced cardiomyocyte injury.

With the continuous development of information technology,smart financial systems has gradually become an important tool for financial management in public hospitals.As an important component of the smart financial system,electronic accounting record management is of great practical significance in adapting to the trend of"green and carbon free"economic development,improving the efficiency of financial management in public hospitals,and promoting high-quality development of hospitals.Henan Provincial People's Hospital is taken as an example(hereinafter referred to as the sample hospital)to deeply interpret national policies,explore the difficulties in electronic accounting file management,and combine with the specific situation of the hospital.Guided by the overall strategic goals of the hospital,starting from the top-level design integration,it creates a set of replicable and promotable electronic accounting voucher electronic reimbursement,entry,and archiving progress,so as to provide theoretical and practical experience for the transformation and upgrading of electronic record management in public hospitals,and provide a new template for the development and reform of economic management in public hospitals in China.

With the continuous development of information technology,smart financial systems has gradually become an important tool for financial management in public hospitals.As an important component of the smart financial system,electronic accounting record management is of great practical significance in adapting to the trend of"green and carbon free"economic development,improving the efficiency of financial management in public hospitals,and promoting high-quality development of hospitals.Henan Provincial People's Hospital is taken as an example(hereinafter referred to as the sample hospital)to deeply interpret national policies,explore the difficulties in electronic accounting file management,and combine with the specific situation of the hospital.Guided by the overall strategic goals of the hospital,starting from the top-level design integration,it creates a set of replicable and promotable electronic accounting voucher electronic reimbursement,entry,and archiving progress,so as to provide theoretical and practical experience for the transformation and upgrading of electronic record management in public hospitals,and provide a new template for the development and reform of economic management in public hospitals in China.

With the continuous development of information technology,smart financial systems has gradually become an important tool for financial management in public hospitals.As an important component of the smart financial system,electronic accounting record management is of great practical significance in adapting to the trend of"green and carbon free"economic development,improving the efficiency of financial management in public hospitals,and promoting high-quality development of hospitals.Henan Provincial People's Hospital is taken as an example(hereinafter referred to as the sample hospital)to deeply interpret national policies,explore the difficulties in electronic accounting file management,and combine with the specific situation of the hospital.Guided by the overall strategic goals of the hospital,starting from the top-level design integration,it creates a set of replicable and promotable electronic accounting voucher electronic reimbursement,entry,and archiving progress,so as to provide theoretical and practical experience for the transformation and upgrading of electronic record management in public hospitals,and provide a new template for the development and reform of economic management in public hospitals in China.

With the continuous development of information technology,smart financial systems has gradually become an important tool for financial management in public hospitals.As an important component of the smart financial system,electronic accounting record management is of great practical significance in adapting to the trend of"green and carbon free"economic development,improving the efficiency of financial management in public hospitals,and promoting high-quality development of hospitals.Henan Provincial People's Hospital is taken as an example(hereinafter referred to as the sample hospital)to deeply interpret national policies,explore the difficulties in electronic accounting file management,and combine with the specific situation of the hospital.Guided by the overall strategic goals of the hospital,starting from the top-level design integration,it creates a set of replicable and promotable electronic accounting voucher electronic reimbursement,entry,and archiving progress,so as to provide theoretical and practical experience for the transformation and upgrading of electronic record management in public hospitals,and provide a new template for the development and reform of economic management in public hospitals in China.

With the continuous development of information technology,smart financial systems has gradually become an important tool for financial management in public hospitals.As an important component of the smart financial system,electronic accounting record management is of great practical significance in adapting to the trend of"green and carbon free"economic development,improving the efficiency of financial management in public hospitals,and promoting high-quality development of hospitals.Henan Provincial People's Hospital is taken as an example(hereinafter referred to as the sample hospital)to deeply interpret national policies,explore the difficulties in electronic accounting file management,and combine with the specific situation of the hospital.Guided by the overall strategic goals of the hospital,starting from the top-level design integration,it creates a set of replicable and promotable electronic accounting voucher electronic reimbursement,entry,and archiving progress,so as to provide theoretical and practical experience for the transformation and upgrading of electronic record management in public hospitals,and provide a new template for the development and reform of economic management in public hospitals in China.

With the continuous development of information technology,smart financial systems has gradually become an important tool for financial management in public hospitals.As an important component of the smart financial system,electronic accounting record management is of great practical significance in adapting to the trend of"green and carbon free"economic development,improving the efficiency of financial management in public hospitals,and promoting high-quality development of hospitals.Henan Provincial People's Hospital is taken as an example(hereinafter referred to as the sample hospital)to deeply interpret national policies,explore the difficulties in electronic accounting file management,and combine with the specific situation of the hospital.Guided by the overall strategic goals of the hospital,starting from the top-level design integration,it creates a set of replicable and promotable electronic accounting voucher electronic reimbursement,entry,and archiving progress,so as to provide theoretical and practical experience for the transformation and upgrading of electronic record management in public hospitals,and provide a new template for the development and reform of economic management in public hospitals in China.

With the continuous development of information technology,smart financial systems has gradually become an important tool for financial management in public hospitals.As an important component of the smart financial system,electronic accounting record management is of great practical significance in adapting to the trend of"green and carbon free"economic development,improving the efficiency of financial management in public hospitals,and promoting high-quality development of hospitals.Henan Provincial People's Hospital is taken as an example(hereinafter referred to as the sample hospital)to deeply interpret national policies,explore the difficulties in electronic accounting file management,and combine with the specific situation of the hospital.Guided by the overall strategic goals of the hospital,starting from the top-level design integration,it creates a set of replicable and promotable electronic accounting voucher electronic reimbursement,entry,and archiving progress,so as to provide theoretical and practical experience for the transformation and upgrading of electronic record management in public hospitals,and provide a new template for the development and reform of economic management in public hospitals in China.

With the continuous development of information technology,smart financial systems has gradually become an important tool for financial management in public hospitals.As an important component of the smart financial system,electronic accounting record management is of great practical significance in adapting to the trend of"green and carbon free"economic development,improving the efficiency of financial management in public hospitals,and promoting high-quality development of hospitals.Henan Provincial People's Hospital is taken as an example(hereinafter referred to as the sample hospital)to deeply interpret national policies,explore the difficulties in electronic accounting file management,and combine with the specific situation of the hospital.Guided by the overall strategic goals of the hospital,starting from the top-level design integration,it creates a set of replicable and promotable electronic accounting voucher electronic reimbursement,entry,and archiving progress,so as to provide theoretical and practical experience for the transformation and upgrading of electronic record management in public hospitals,and provide a new template for the development and reform of economic management in public hospitals in China.

Objective:To optimize the detection method for residual solvents of esmolol hydrochloride for control of internal quality.Methods:Gas chromatography headspace injection method was adopted by selecting appropriate headspace equilibrium temperature and time in order to reduce sample contamination of the instrument,optimizing solvent ratio for reducing matrix effect and adjusting carrier gas flow rate and split ratio.Polar capillary column pro-grammed temperature rise method was used with high temperature holding time,etc.,and methodological validation was conducted.Results:Ether,ethyl acetate,methanol,and toluene could all be effectively separated with good precision,and there were good linear relationships between peak areas and mass concentrations.The accuracy of sample spiking at 50％,100％,and 150％concentrations was investigated,and the average recovery rates could all reach ranges of 94.8％-105.6％.Conclusion:This method is accurate,highly sensitive,and overcomes the shortcomings of the Chinese Pharmacopoeia methods.It can be used for the detection of residual solvents in esmolol hydrochloride.