Objective:To clarify the medical security plan and its practical effects at the main venue of the 19th Hangzhou Asian Games.Methods:The plan described the medical security implementation plan of the main venue of the 19th Asian Games in Hangzhou (organizational management and operation mechanism, medical security operation system, standardized training and support processes, application of Asian Games intelligent first aid security system, and so on). And through high-facticity simulation verify the operation effect of the main venue's medical support (team mode and response time). Finally, the feasibility and effectiveness of the medical security program verified through the effect of medical services (quantity, disease types, transfers, etc.) during the Asian Games and Asian Paralympic Games.Results:The medical security team of the main venue of the 19th Hangzhou Asian Games included the management team and the operation team, of which consisted of 44 medical staffs (22 doctors and 22 nurses); and were deployed to 16 different security positions. It was also accompanied with 16 volunteers to assist medical staff to transport patients. In addition, a total of 300 medical observers were enrolled in audience area to assist rapid identification, intervention, and collaborative diagnosis and treatment with the medical team. Medical security teams were arranged to cover all the audience areas who can arrive at the patient's area within 2 minutes after receiving orders, transfer the patient to the ambulance’s site in 8 minutes, and transport the patient to a designated hospital within 10-20 minutes. During the Asian Games and Asian Paralympic Games, the medical-care team treated a total of 3 742 patients, including 9 patients transported from medical service sites of the audience area to the stadium infirmary, as well as 83 patients referred to the designated hospital.Conclusions:The medical security implementation plan for the main venues of the Asian Games provides good medical security for the Asian Games and Asian Paralympic Games. It also provides theoretical and practical experience for the development of the medical security system for international events in future.

Medical education is the cornerstone of the development of health care.In the context of advance-ments in New Medical Science,the Second Hospital of Jilin University took the reform of the school's clinical medi-cal education system as an opportunity to strengthen the teaching quality assurance capabilities,focus on improving teachers'teaching capabilities,and pay attention to the quality of student training,thus comprehensively building a new pattern of innovative development of medical education.It was also proposed that university-affiliated hospitals should focus on the overall national strategic plan for medical education development and deepen medical education reform,use artificial intelligence to lead the innovative development of medical education,and use the construction of new-era textbooks as the carrier of medical education innovation to promote deeper reforms in medical education.

OBJECTIVE To synthesize a polymer PEI-ss-PEG2000-DSPE containing disulfide bond and to prepare as cationic micelle(P-ss-PD) based on branched polyethyleneimine(PEI). To investigate the ability of P-ss-PD micelle to reduce cytotoxicity and improve the transfection efficiency of antisense oligonucleotide(ASO) in human breast cancer cell lines, and to study the anti-tumor effect of P-ss-PD micelle in nude mice. METHODS PEI-ss-PEG2000-DSPE was synthesized by grafting PEG2000-DSPE onto branched PEI with disulfide bond as a connecting arm. P-ss-PD micelle was prepared by ethanol injection method and P-ss-PD/ASO nanocomplex was obtained by combining P-ss-PD micelle with ASO. The particle size and zeta potential of P-ss-PD/ASO nanocomplex at various mass ratios were determined by laser particle size analyzer. Agarose gel retardation assay was used to investigate the binding degree of P-ss-PD/ASO nanocomplex and determine the optimal mass ratio. At the same time, the reduction responsive ability of P-ss-PD micelle was investigated. The cytotoxicity of P-ss-PD micelle was detected by CCK8 kit. The transfection efficiency of P-ss-PD micelle was investigated by flow cytometry and high content cell imaging analysis system in MDA-MB-231 cells. The anti-tumor effect of P-ss-PD micelle was investigated by tumor-bearing nude mice models. RESULTS When the mass ratio was 300∶1, the particle size of P-ss-PD/ASO nanocomplex was the smallest and had a good stability. The average particle size was (58.90 ± 4.08)nm, the average zeta potential was (16.80 ± 1.23)mV, and the morphology was uniform spherical. P-ss-PD/ASO nanocomplex had the reduction responsive ability and could release ASO under highly reductive conditions.In vitro, compared with unmodified branched PEI, the cytotoxicity of P-ss-PD micelle was significantly reduced and the transfection efficiency was significantly increased.In vivo, the tumor growth inhibition rate of P-ss-PD/ASO nanocomplex in tumor-bearing nude mice was more than 50%. CONCLUSION The P-ss-PD micelle prepared in this study is a kind of low toxicity and high transfection efficiency non-viral vector, which has the characteristics of reduction responsive releasing, and shows a promising application in ASO drug delivery.

Medical education is the cornerstone of the development of health care.In the context of advance-ments in New Medical Science,the Second Hospital of Jilin University took the reform of the school's clinical medi-cal education system as an opportunity to strengthen the teaching quality assurance capabilities,focus on improving teachers'teaching capabilities,and pay attention to the quality of student training,thus comprehensively building a new pattern of innovative development of medical education.It was also proposed that university-affiliated hospitals should focus on the overall national strategic plan for medical education development and deepen medical education reform,use artificial intelligence to lead the innovative development of medical education,and use the construction of new-era textbooks as the carrier of medical education innovation to promote deeper reforms in medical education.

Medical education is the cornerstone of the development of health care.In the context of advance-ments in New Medical Science,the Second Hospital of Jilin University took the reform of the school's clinical medi-cal education system as an opportunity to strengthen the teaching quality assurance capabilities,focus on improving teachers'teaching capabilities,and pay attention to the quality of student training,thus comprehensively building a new pattern of innovative development of medical education.It was also proposed that university-affiliated hospitals should focus on the overall national strategic plan for medical education development and deepen medical education reform,use artificial intelligence to lead the innovative development of medical education,and use the construction of new-era textbooks as the carrier of medical education innovation to promote deeper reforms in medical education.

Medical education is the cornerstone of the development of health care.In the context of advance-ments in New Medical Science,the Second Hospital of Jilin University took the reform of the school's clinical medi-cal education system as an opportunity to strengthen the teaching quality assurance capabilities,focus on improving teachers'teaching capabilities,and pay attention to the quality of student training,thus comprehensively building a new pattern of innovative development of medical education.It was also proposed that university-affiliated hospitals should focus on the overall national strategic plan for medical education development and deepen medical education reform,use artificial intelligence to lead the innovative development of medical education,and use the construction of new-era textbooks as the carrier of medical education innovation to promote deeper reforms in medical education.

Medical education is the cornerstone of the development of health care.In the context of advance-ments in New Medical Science,the Second Hospital of Jilin University took the reform of the school's clinical medi-cal education system as an opportunity to strengthen the teaching quality assurance capabilities,focus on improving teachers'teaching capabilities,and pay attention to the quality of student training,thus comprehensively building a new pattern of innovative development of medical education.It was also proposed that university-affiliated hospitals should focus on the overall national strategic plan for medical education development and deepen medical education reform,use artificial intelligence to lead the innovative development of medical education,and use the construction of new-era textbooks as the carrier of medical education innovation to promote deeper reforms in medical education.

Medical education is the cornerstone of the development of health care.In the context of advance-ments in New Medical Science,the Second Hospital of Jilin University took the reform of the school's clinical medi-cal education system as an opportunity to strengthen the teaching quality assurance capabilities,focus on improving teachers'teaching capabilities,and pay attention to the quality of student training,thus comprehensively building a new pattern of innovative development of medical education.It was also proposed that university-affiliated hospitals should focus on the overall national strategic plan for medical education development and deepen medical education reform,use artificial intelligence to lead the innovative development of medical education,and use the construction of new-era textbooks as the carrier of medical education innovation to promote deeper reforms in medical education.

Medical education is the cornerstone of the development of health care.In the context of advance-ments in New Medical Science,the Second Hospital of Jilin University took the reform of the school's clinical medi-cal education system as an opportunity to strengthen the teaching quality assurance capabilities,focus on improving teachers'teaching capabilities,and pay attention to the quality of student training,thus comprehensively building a new pattern of innovative development of medical education.It was also proposed that university-affiliated hospitals should focus on the overall national strategic plan for medical education development and deepen medical education reform,use artificial intelligence to lead the innovative development of medical education,and use the construction of new-era textbooks as the carrier of medical education innovation to promote deeper reforms in medical education.

Medical education is the cornerstone of the development of health care.In the context of advance-ments in New Medical Science,the Second Hospital of Jilin University took the reform of the school's clinical medi-cal education system as an opportunity to strengthen the teaching quality assurance capabilities,focus on improving teachers'teaching capabilities,and pay attention to the quality of student training,thus comprehensively building a new pattern of innovative development of medical education.It was also proposed that university-affiliated hospitals should focus on the overall national strategic plan for medical education development and deepen medical education reform,use artificial intelligence to lead the innovative development of medical education,and use the construction of new-era textbooks as the carrier of medical education innovation to promote deeper reforms in medical education.