Approximately 300 million tons of plastic are produced globally each year,which has a serious impact on human health,marine life and the livestock industry.Microplastics have also been detected in meat and milk samples.Research has shown that nanoplastics(NP)(＜1 μm)and mi-croplastics(MP)(1 μm-5 mm)can affect the digestive,immune and reproductive systems of ani-mals.This experiment aims to investigate whether NP and MP regulate autophagy and damage the nervous system and spatial memory of animals.This experiment was divided into control group,nanoplastic group(PS-NP group,0.1 μm)and microplastic group(PS-MP group,1 μm),with 20 mice in each group.The mice were given 0.5 mL of PS-NP and PS-MP every day for 35 consecutive days,followed by neck amputation and brain analysis.The results showed that NPs and MPs of dif-ferent diameters caused varying degrees of damage to the brains of mice.In the behavioral tests of new object recognition,barnes maze and Y-shaped maze spatial memory,compared with the control group,the PS-NP group and PS-MP group showed a significant decrease in spatial memory ability of mice.HE staining results showed that neuronal cells in the PS-NP and PS-MP groups of mice exhibited shrinkage,decreased cell volume and deepened staining.The number of Nissl bodies de-creased,leading to dissolution and disappearance.RT-PCR and Western blot results showed that compared with the control group,the expression of glutamate receptors NR1,NR2A and NR2B in-creased in mice administered NP and MP orally,while the expression of autophagy related proteins Parkin,LC3B and Beclin1 was inhibited.In summary,this study suggests that nanoplastics and mi-croplastics stimulate glutamate receptors in mice by inhibiting the autophagy pathway,leading to impaired spatial memory.

Objective To explore the mechanism of Scutellaria baicalensis(Huangqin)in ameliorating postoperative cognitive dysfunction in surgical patients through network pharmacology approaches combined with experimental validation.Methods Network pharmacology was used to screen the relevant targets and pathways of Huangqin in relation to postoperative cognitive dysfunction,followed by molecular docking to verify the affinity of core components with key targets.HT22 cell line of mouse hippocampal neurons was cultured,and an inflammation injury model was induced by LPS stimulation.Huangqin was selected for intervention treatment,divided into five groups:control group,model group,low-dose Huangqin group(10 μmol/L),medium-dose Huangqin group(50 μmol/L),and high-dose Huangqin group(100 μmol/L).After co-culturing for 24 h,the expression of key target proteins HIF1A,MAPK1(ERK2/p-ERK2),and SIRT1 were detected by Western blotting,and the mRNA expression of these proteins was measured by qRT-PCR.Results A total of 27 active components of Huangqin were screened by network pharmacology,corresponding to 379 targets,with 220 disease targets related to POCD,resulting in 35 intersecting genes.Molecular docking results showed that components like baicalein and oroxylin A had strong affinity with targets such as HIF1A,MAPK1,and SIRT1.In vitro experimental results indicated that baicalein significantly downregulated the expression and transcription levels of HIF1A and MAPK1(ERK2/p-ERK2),while upregulating the expression and transcription levels of SIRT1,effectively improved the inflammatory response in HT22 cells and reduced neuronal damage.Conclusion The traditional Chinese medicine Huangqin can reduce the occurrence and development of postoperative cognitive dysfunction by improving the expression of key proteins,controlling inflammatory responses,and protecting neuronal function.

Objective To explore the mechanism of Scutellaria baicalensis(Huangqin)in ameliorating postoperative cognitive dysfunction in surgical patients through network pharmacology approaches combined with experimental validation.Methods Network pharmacology was used to screen the relevant targets and pathways of Huangqin in relation to postoperative cognitive dysfunction,followed by molecular docking to verify the affinity of core components with key targets.HT22 cell line of mouse hippocampal neurons was cultured,and an inflammation injury model was induced by LPS stimulation.Huangqin was selected for intervention treatment,divided into five groups:control group,model group,low-dose Huangqin group(10 μmol/L),medium-dose Huangqin group(50 μmol/L),and high-dose Huangqin group(100 μmol/L).After co-culturing for 24 h,the expression of key target proteins HIF1A,MAPK1(ERK2/p-ERK2),and SIRT1 were detected by Western blotting,and the mRNA expression of these proteins was measured by qRT-PCR.Results A total of 27 active components of Huangqin were screened by network pharmacology,corresponding to 379 targets,with 220 disease targets related to POCD,resulting in 35 intersecting genes.Molecular docking results showed that components like baicalein and oroxylin A had strong affinity with targets such as HIF1A,MAPK1,and SIRT1.In vitro experimental results indicated that baicalein significantly downregulated the expression and transcription levels of HIF1A and MAPK1(ERK2/p-ERK2),while upregulating the expression and transcription levels of SIRT1,effectively improved the inflammatory response in HT22 cells and reduced neuronal damage.Conclusion The traditional Chinese medicine Huangqin can reduce the occurrence and development of postoperative cognitive dysfunction by improving the expression of key proteins,controlling inflammatory responses,and protecting neuronal function.

Objective To understand the talent needs in public hospitals and provide a scientific theoretical basis for the development and implementation of talent introduction plans.Methods A self-designed questionnaire on talent needs in public hospitals and an outline for expert interviews were used in this study,employing a combination of questionnaire surveys and expert interviews.Results The demand for full-time research personnel accounted for 78.1％,and 83.6％of departments preferred full-time recruitment.Approximately 50％of talents were expected to be recruited from both domestic and overseas sources,with 65.3％being under the age of 45.The top three support expectations from hospitals were salary benefits,mentor qualifications,and senior professional titles.In terms of talent needs for key construction projects in hospitals,44.4％were for leading talents,27.8％for platform leaders,and 55.6％for full-time overseas talents.There were significant differences in talent categories,po-sitions,and recruitment methods for key construction projects(P＜0.001).Differences were also observed in the types of posi-tions,recruitment methods,and recruitment channels among different departments in hospitals(P＜0.05).There were signifi-cant differences in recruitment channels(P＜0.001).Conclusion The pattern of global high-level talent aggregation has not yet formed,and talent recruitment should be implemented with the help of the"Two Plans and One Platform"initiative.The role of national platform bases in talent attraction should be strengthened,and talent recruitment channels should be expanded to create a conducive environment for talent attraction.The support system for talent recruitment should be improved to increase the success rate of talent introduction.It is necessary to innovate and optimize the long-term talent introduction mechanism and improve the talent evaluation system.

This study aims to innovate a homogeneous outpatient service management system across multiple hospital campuses to enhance service quality.Based on the practical experience of a tertiary general hospital in Guangdong Province and in accordance with the"Interim Regulations on Outpatient Quality Management in Healthcare Institutions,"we constructed a"6+1"homogeneous outpatient service management system.This system includes:① a multi-stakeholder co-governance outpa-tient management system,②a vertical and cross-hierarchical management network,③ a democratic-centralized clinical coordina-tion strategy,④ a guidance-encouragement performance evaluation standard,⑤a collaborative dynamic supervision mechanism,⑥a spiral retrospective evaluation and improvement method,and ⑦ an integrated outpatient diagnosis and treatment system.Af-ter over two years of implementation,the hospital's outpatient volume has grown by an average of over 15％annually,patient waiting time after appointment has been reduced to 20 minutes,and patient satisfaction in the tertiary public hospital performance evaluation achieved full marks.The electronic medical record system functionality reached Level 6,significantly improving healthcare service efficiency and quality while enhancing homogeneous management across campuses.

To investigate the expression level of costimulatory molecule B7-H3 in the tumor tissues and the level of soluble costimulatory molecule B7-H3 (sB7-H3) in the serum of patients with colorectal cancer (CRC), so as to evaluate the clinical value of sB7-H3 in auxiliary diagnosis of CRC. A cross-sectional study design was adopted. A total of 232 CRC patients, 87 patients with benign colorectal diseases, and 59 healthy subjects who were treated in Shanghai Eighth People′s Hospital from January 2020 to December 2022 were selected. The levels of sB7-H3, CEA, CA199, CA724 and CA50 in the serum were detected. The receiver operating characteristic (ROC) curve was used to analyze the diagnostic value of sB7-H3 and the above-mentioned tumor markers for colorectal cancer (CRC). The expression levels of B7-H3 in CRC tissues and benign colorectal disease tissues were detected by immunohistochemistry. The relationship between the levels of sB7-H3 and clinicopathological features was analyzed statistically. The results showed that compared with the benign disease group or the healthy control respectively, the serum levels of sB7-H3, CEA, CA199, CA724 and CA50 in the CRC group were significantly increased, and the differences were statistically significant ( P<0.05). In the CRC group, the serum levels of sB7-H3 showed a weak positive correlation with CA50, CEA and CA724 (the r values were 0.220, 0.217 and 0.182 respectively; the P values were 0.005,<0.001 and 0.024 respectively), and there was no significant correlation with CA199 (the r value was 0.162; the P value were 0.051). The areas under the curve (AUC) of sB7-H3, CEA, CA199, CA724 and CA50 for diagnosing CRC were 0.862, 0.774, 0.646, 0.677 and 0.644 respectively, and the cut-off values were 20.67 ng/ml, 10.74 U/ml, 3.17 ng/ml, 3.16 U/ml, and 22.55 U/ml, respectively. Taking 20.67 ng/ml as the cut-off value, the positive rate of sB7-H3 in CRC was 62.9%, which was significantly higher than that in patients with benign colorectal diseases (35.6%) and the healthy control group (10%) ( χ2=81.995, P<0.001; χ2=103.56, P<0.001). The positive rates of sB7-H3 and CEA in patients with pathological stages Ⅲ and Ⅳ were significantly higher than those in patients with stages Ⅰ and Ⅱ ( χ2=82.876, P<0.001; χ2=22.617, P<0.001). The positive rate of sB7-H3 in patients with pathological stages Ⅰ and Ⅱ was 56.2%, which was significantly higher than that of CEA (38%) ( χ2=50.378, P<0.001). Immunohistochemistry showed that B7-H3 positive staining was mainly distributed in the cytoplasm. The positive expression rate of B7-H3 in CRC (75.8%) was significantly higher than that in benign colorectal diseases (15.4%) ( χ2=16.133, P<0.001). The serum level of sB7-H3 in CRC patients was positively correlated with the expression level of B7-H3 in tumor tissues ( r=0.766, P<0.001). The serum level of sB7-H3 was significantly correlated with distant metastasis and pathological stage of CRC ( W=899, P=0.002; H=10.465, P=0.015). In conclusion, serum level of sB7-H3 may have certain clinical value in the auxiliary diagnosis of CRC.

This paper elaborated the structural principles,structures and working principles of the A5 type passive training system for hand function through discussed the clinical application of passive training system for hand function in the rehabilitation of patients with stroke.It analyzed a series of occurring common faults during system operation,such as system errors caused by missing components,improper sensitivity settings for spasticity,abnormal connections for equipment,motor failures,jam and pause of robotic hand,and faults of lifting table,and conducted fault analysis for them.After that,this paper proposed corresponding handling strategies and solutions for faults,which included software configuration,calibration and detection of robotic hand sensors,repair of connection fault,and regular maintenance and replacement of system's components.It provided theoretical basis for the maintenance and optimization of the passive training system for hand function.Thus,it can rapid remove troubles,and reduce the equipment's failure rate of passive training system for hand function,and improve the equipment's normal utilization rate,and ensure favorable performance of equipment in long-term use.

[Objective]To investigate the effect of blue light on emmetropization in guinea pigs,explore the potential mechanisms and assess its application in myopia prevention and control.[Methods]Three-week-old male guinea pigs(n=20)were randomly assigned to the white light group and the blue light group.Refraction and ocular biological parameters were measured every 2 weeks until the experiment ended at week 8.And the 4D-data-independent acquisition(4D-DIA)proteomics technology was used to analyze retina from both the blue light and white light groups,exploring protein composition,expression differences,and biological functions.[Results]After 2 weeks,Guinea pigs exposed to white light gradually tended towards emmetropia,showing a statistically significant difference in refractive error compared to the blue light group(P<0.001).From week 4,the axial length of the blue light group was significantly shorter than that of the white light group(P<0.05).Meanwhile,the vitreous chamber length in the blue light group was significantly smaller than that of the white light group from week 2(P<0.05).A total of 161 differentially expressed proteins were identified by proteomics technology in the retina,with 98 proteins upregulated and 63 proteins downregulated.These proteins were primarily enriched in biosynthetic pathways such as vesicle transport,redox reaction,niacin and nicotinamide metabolism and NAD+metabolism.[Conclusions]Guinea pigs raised under blue light exhibit hyperopic drift and slowed axial elongation,which slows the procession of emmetropization.Based on the 4D-DIA technology,the differentially expressed proteins between the blue light and white light groups are primarily involved in NAD+metabolism,niacin and nicotinamide metabolism.Especially in NAD+salvage synthesis,nicotinamide phosphoribosyl transferase(NAMPT)is upregulated,while sirtuin 2(SIRT2)is downregulated.It provides new insights into the mechanism of blue light in emmetropization and a theoretical basis for myopia prevention and control.

Approximately 300 million tons of plastic are produced globally each year,which has a serious impact on human health,marine life and the livestock industry.Microplastics have also been detected in meat and milk samples.Research has shown that nanoplastics(NP)(＜1 μm)and mi-croplastics(MP)(1 μm-5 mm)can affect the digestive,immune and reproductive systems of ani-mals.This experiment aims to investigate whether NP and MP regulate autophagy and damage the nervous system and spatial memory of animals.This experiment was divided into control group,nanoplastic group(PS-NP group,0.1 μm)and microplastic group(PS-MP group,1 μm),with 20 mice in each group.The mice were given 0.5 mL of PS-NP and PS-MP every day for 35 consecutive days,followed by neck amputation and brain analysis.The results showed that NPs and MPs of dif-ferent diameters caused varying degrees of damage to the brains of mice.In the behavioral tests of new object recognition,barnes maze and Y-shaped maze spatial memory,compared with the control group,the PS-NP group and PS-MP group showed a significant decrease in spatial memory ability of mice.HE staining results showed that neuronal cells in the PS-NP and PS-MP groups of mice exhibited shrinkage,decreased cell volume and deepened staining.The number of Nissl bodies de-creased,leading to dissolution and disappearance.RT-PCR and Western blot results showed that compared with the control group,the expression of glutamate receptors NR1,NR2A and NR2B in-creased in mice administered NP and MP orally,while the expression of autophagy related proteins Parkin,LC3B and Beclin1 was inhibited.In summary,this study suggests that nanoplastics and mi-croplastics stimulate glutamate receptors in mice by inhibiting the autophagy pathway,leading to impaired spatial memory.

This study aims to innovate a homogeneous outpatient service management system across multiple hospital campuses to enhance service quality.Based on the practical experience of a tertiary general hospital in Guangdong Province and in accordance with the"Interim Regulations on Outpatient Quality Management in Healthcare Institutions,"we constructed a"6+1"homogeneous outpatient service management system.This system includes:① a multi-stakeholder co-governance outpa-tient management system,②a vertical and cross-hierarchical management network,③ a democratic-centralized clinical coordina-tion strategy,④ a guidance-encouragement performance evaluation standard,⑤a collaborative dynamic supervision mechanism,⑥a spiral retrospective evaluation and improvement method,and ⑦ an integrated outpatient diagnosis and treatment system.Af-ter over two years of implementation,the hospital's outpatient volume has grown by an average of over 15％annually,patient waiting time after appointment has been reduced to 20 minutes,and patient satisfaction in the tertiary public hospital performance evaluation achieved full marks.The electronic medical record system functionality reached Level 6,significantly improving healthcare service efficiency and quality while enhancing homogeneous management across campuses.