Objective To explore the application value of the PDCA(Plan-Do-Check-Act)cycle in hospital document supervision management,with the aim of improving document processing efficiency and optimizing administrative workflows.Methods A tertiary hospital in South China was selected as the study subject.In response to a low document completion rate in 2023(74.99％),a fishbone diagram analysis was conducted to identify key efficiency bottlenecks.A classified and hierarchical supervision model based on the PDCA cycle was established.Departments were grouped into high-volume(＞400 cases/year),medium-volume(100-400 cases/year),and low-volume(＜100 cases/year).Targeted interventions were implemented in low-efficiency departments using a"liaison officer+negative list+responsible person tracking"mechanism.Results After im-plementation,the completion rate in low-efficiency departments improved from 26.93％-87.86％ to 58.25％-100％(P=0.028).The hospital's overall average document completion rate reached 93.30％ in 2024,an 18.31％ increase compared to baseline.Conclusion The stratified document supervision model based on the PDCA cycle can significantly enhance administra-tive efficiency and provides practical reference for refined management in public hospitals.

Objective To explore the application value of the PDCA(Plan-Do-Check-Act)cycle in hospital document supervision management,with the aim of improving document processing efficiency and optimizing administrative workflows.Methods A tertiary hospital in South China was selected as the study subject.In response to a low document completion rate in 2023(74.99％),a fishbone diagram analysis was conducted to identify key efficiency bottlenecks.A classified and hierarchical supervision model based on the PDCA cycle was established.Departments were grouped into high-volume(＞400 cases/year),medium-volume(100-400 cases/year),and low-volume(＜100 cases/year).Targeted interventions were implemented in low-efficiency departments using a"liaison officer+negative list+responsible person tracking"mechanism.Results After im-plementation,the completion rate in low-efficiency departments improved from 26.93％-87.86％ to 58.25％-100％(P=0.028).The hospital's overall average document completion rate reached 93.30％ in 2024,an 18.31％ increase compared to baseline.Conclusion The stratified document supervision model based on the PDCA cycle can significantly enhance administra-tive efficiency and provides practical reference for refined management in public hospitals.

Objective This study was conducted to establish a stable and highly efficient method for isolation and purification of pancreatic islets from NOD mice and to evaluate their characteristics in vitro and in vivo. Methods The is-lets were isolated from mouse pancreas using modified collagenase digestion and Ficoll density gradient centrifugation. The endocrine secretory function was assessed by insulin secretion in either low or high dose glucose stimulation. To evaluate the function of the graft,body weight and blood glucose were monitored,and IVGTT was performed. In addition,to assess sur-vival of the implanted islets,Pathology using HE staining and insulin immunostaining of the graft were performed. Results The average islet yield was 116 ± 12 islets/pancreas and purity was higher than 90%. Compared with islets from Kunming mice,the islets isolated from NOD mice were poorly responsive to glucose challenge. Blood glucose levels and body weight changes of the islet-transplanted diabetic mice were significantly improved compared with the sham-operated mice. In addi-tion,blood glucose levels in vivo after an IVGTT also significantly improved. However,these improvements were only main-tained for 2 weeks. Furthermore,HE staining and immunostaining assays demonstrated that there were insulin-positive cell clusters and lymphocyte infiltration in the graft-bearing kidney. Conclusions A large number of quality islets can be isola-ted and purified from NOD mice by using the modified mouse islet isolation method, which can be used to develop thera-peutic strategies to protect transplanted islets from rejection and autoimmune attack.