The development of 5G remote robot-assisted gastrointestinal surgery is an important breakthrough in remote surgery in the field of four-level surgery. This paper will review the development history of 5G remote robot assisted gastrointestinal surgery, and share the Gansu province people′s hospital in 5G remote robot assisted gastrointestinal surgery about preoperative preparation, network and equipment connection,“3+2” Trocar layout, safety emergency treatment mechanism of exploratory experience, for 5G remote robot assisted gastrointestinal surgery, and the status and prospect of 5G remote robot assisted gastrointestinal surgery.

The development of 5G remote robot-assisted gastrointestinal surgery is an important breakthrough in remote surgery in the field of four-level surgery. This paper will review the development history of 5G remote robot assisted gastrointestinal surgery, and share the Gansu province people′s hospital in 5G remote robot assisted gastrointestinal surgery about preoperative preparation, network and equipment connection,“3+2” Trocar layout, safety emergency treatment mechanism of exploratory experience, for 5G remote robot assisted gastrointestinal surgery, and the status and prospect of 5G remote robot assisted gastrointestinal surgery.

Objective: To investigate the milk drinking behavior and bone mineral density level of pupils in Hainan Province, and to explore the correlation between bone mineral density and milk drinking behavior, in order to provide scientific basis for promoting the healthy development of bones in children and adolescents. Methods: In November 2021, a cross sectional survey including demographic characteristics, milk intake, unhealthy eating behavior, physical activity and sleep was conducted among 696 students from grades 3 to 5 in Sanya and Baisha, Hainan by stratified cluster random sampling, and bone mineral density at the distal 1/3 of the right forearm was measured by dual energy X-ray absorptiometry. t-test was used to compare the differences in bone mineral density among different milk drinking behaviors of pupils, and multiple linear regression was used to analyze the correlation between milk consumption and bone mineral density. Results: About 25.3% students consumed milk daily and 13.9% consumed ≥ 300 g of milk daily. The mean bone mineral density at the distal 1/3 of the right forearm was (0.237±0.041)g/cm 2. The bone mineral density was greater in the group with daily milk intake than in the group without daily milk intake [(0.250± 0.037 )(0.204±0.034) g/cm 2 , t=15.00, P <0.01], and the bone mineral density was greater in the group with daily average milk intake ≥300 g than in the group with daily average milk intake <300 g [(0.284±0.036)(0.229±0.037)g/cm 2, t=13.48, P < 0.01 ]. Multiple linear regression analysis showed that daily average milk intake was positively correlated with bone mineral density, with a correlation coefficient ( β=0.020, t=21.46, P <0.01). Conclusion Milk consumption among pupils is inadequate, and milk drinking behavior has a positive impact on bone mineral density, so effective milk drinking intervention should be carried out to promote children s bone development.

Study on pharmacodynamic material basis of Chinese materia medica (CMM) is one of the key points of CMM modern research. It is also the core of ascertaining the overall efficacy and the function essence of CMM. It is an important basis for the safety, efficacy and quality control of CMM. However, since the multiple components, complex medical effects and interactions among effective components of CMM, the clarification of pharmacodynamic material basis has become a difficult question, which restricts the CMM modernization. Therefore, pharmacodynamic material basis of CMM has received widespread attention in the academic field. Many experts and scholars have done a lot of research and practice on this area. This article analyzed relevant literatures about pharmacodynamic material basis researches of CMM, and reviewed connotation, research thoughts and methods of CMM. It discussed some existing problems in current studies. The goal was to provide references for pharmacodynamic material basis of CMM.