Objective:To explore the mediating effect of frailty between stress perception and kinesiophobia in elderly patients after temporary cardiac pacemaker implantation.Methods:A total of 129 elderly patients who underwent temporary cardiac pacemaker implantation surgery in the Department of Cardiovascular Medicine of the First Affiliated Hospital of Zhengzhou University from February 2023 to April 2024 were selected by convenience sampling method, and were surveyed by the general information questionnaire, the exercise fear scale, the perceived stress scale and the Chinese Tilburg frailty scale.The t test, one-way ANOVA and non parametric test were used to analyze the data by SPSS 29.0 software.The macro program PROCESS was used to construct and test the mediation model. Results:The total score of kinesiophobia was (41.08±2.77), the total score of stress perception was (36.22±3.07), and the total score of frailty was (11.19±1.53) in elderly patients after temporary cardiac pacemaker implantation. The total score of kinesiophobia was positively correlated with the total score of stress perception ( r=0.383, P<0.01), the total score of kinesiophobia was positively correlated with the total score of frailty ( r=0.451, P<0.01), and the total score of stress perception was positively correlated with the total score of frailty ( r=0.289, P<0.01).The total effect of stress perception on motor fear was 0.359 ( P<0.01) and the direct effect was 0.226 ( P<0.01).Frailty played a partial mediating role between stress perception and kinesiophbia in elderly patients after temporary pacemaker implantation, with an indirect effect of 0.133 (95% CI=0.062-0.243), accounting for 37.05% of the total effect. Conclusion:Stress perception not only directly affects kinesiophobia in elderly patients with temporary cardiac pacemaker implantation, but also indirectly affects kinesiophobia through frailty.

Objective:To explore the mediating effect of frailty between stress perception and kinesiophobia in elderly patients after temporary cardiac pacemaker implantation.Methods:A total of 129 elderly patients who underwent temporary cardiac pacemaker implantation surgery in the Department of Cardiovascular Medicine of the First Affiliated Hospital of Zhengzhou University from February 2023 to April 2024 were selected by convenience sampling method, and were surveyed by the general information questionnaire, the exercise fear scale, the perceived stress scale and the Chinese Tilburg frailty scale.The t test, one-way ANOVA and non parametric test were used to analyze the data by SPSS 29.0 software.The macro program PROCESS was used to construct and test the mediation model. Results:The total score of kinesiophobia was (41.08±2.77), the total score of stress perception was (36.22±3.07), and the total score of frailty was (11.19±1.53) in elderly patients after temporary cardiac pacemaker implantation. The total score of kinesiophobia was positively correlated with the total score of stress perception ( r=0.383, P<0.01), the total score of kinesiophobia was positively correlated with the total score of frailty ( r=0.451, P<0.01), and the total score of stress perception was positively correlated with the total score of frailty ( r=0.289, P<0.01).The total effect of stress perception on motor fear was 0.359 ( P<0.01) and the direct effect was 0.226 ( P<0.01).Frailty played a partial mediating role between stress perception and kinesiophbia in elderly patients after temporary pacemaker implantation, with an indirect effect of 0.133 (95% CI=0.062-0.243), accounting for 37.05% of the total effect. Conclusion:Stress perception not only directly affects kinesiophobia in elderly patients with temporary cardiac pacemaker implantation, but also indirectly affects kinesiophobia through frailty.

Objective To investigate the protective effect and mechanism of nicorandil on lipopolysac-charide(LPS)-induced human microvascular endothelial cells(HPMVECs)injury based on BMP9/BMPR2/SMAD pathway and its mechanism.Methods The HPMVECs injury model induced by LPS(100 ng/mL)was established.The normal cultured HPMVECs were set as the NC group,and other model cells were set as the model group(LPS group),low,medium and high concentrations nicorandil groups(nicorandil 50,100,200μmol/L),si-NC+high nicorandil group,and si-BMP9+high nicorandil group.MTT assay was used to detect the cell proliferation activity;the apoptosis and intracellular ROS level were detected by flow cytometry;the levels of MDA,SOD and CAT in cells were detected by the micro assay;the levels of TNF-α,IL-6 and IL-1β in cells were detected by ELISA;the mRNA levels of BMP9,BMPR2 and SMAD1 were detected by RT-qPCR;and the expression of BMP9,BMPR2,SMAD1,Bcl-2,Bax proteins in cells was detected by Western blot.Re-sults Compared with the NC group,the proliferation activity of HPMVECs,SOD,CAT levels,Bcl-2 protein,BMP9,BMPR2,SMAD1 mRNA and protein expression levels in the LPS group were decreased(P＜0.05),the apoptosis rate and the Bax protein expression level,ROS,MDA,TNF-α,IL-6 and IL-1β levels were in-creased(P＜0.05).Compared with the LPS group,the proliferation activity of HPMVECs,SOD,CAT levels,Bcl-2 protein level,BMP9,BMPR2,SMAD1 mRNA and protein expression levels in the low,middle and high concentrations nicorandil groups were increased,the apoptosis rate and the Bax protein level,ROS,MDA,TNF-α,IL-6 and IL-1β levels were decreased obviously(P＜0.05);compared with the high concentration nic-orandil group,the si-BMP9+high nicorandil group and LPS group showed the same trend,si-BMP9 was able to reverse the protective effect of high nicorandil group on LPS induced HPMVECs injury to some extent.Conclusion Nicorandil could reduce the oxidative stress,inflammatory reaction and cell apoptosis induced by LPS in HPMVECs and inhibit LPS induced HPMVECs injury by up-regulating the expression of BMP9/BM-PR2/SMAD pathway.

Since 2017, Changfeng Community Health Service Center in Putuo District, Shanghai, has innovatively integrated the "Dual-Contracting" program by combining integrated general-specialist outpatient services with teaching clinics. This integration has progressively evolved into a comprehensive general practitioner (GP) training model. This model cultivates competencies encompassing: core service delivery, specialized disease diagnosis and treatment, complex case management, chronic disease management within specialties, teaching and mentoring skills, and capacities for self-reflection and continuous learning. It effectively bridges the training objectives and needs for GPs across both pre-service and in-service stages. Against the backdrop of senior medical experts being deployed to primary care settings, this model not only systematically enhances the professional competencies of community GPs but also optimizes medical resource utilization and elevates the overall quality of healthcare services.

Since 2017, Changfeng Community Health Service Center in Putuo District, Shanghai, has innovatively integrated the "Dual-Contracting" program by combining integrated general-specialist outpatient services with teaching clinics. This integration has progressively evolved into a comprehensive general practitioner (GP) training model. This model cultivates competencies encompassing: core service delivery, specialized disease diagnosis and treatment, complex case management, chronic disease management within specialties, teaching and mentoring skills, and capacities for self-reflection and continuous learning. It effectively bridges the training objectives and needs for GPs across both pre-service and in-service stages. Against the backdrop of senior medical experts being deployed to primary care settings, this model not only systematically enhances the professional competencies of community GPs but also optimizes medical resource utilization and elevates the overall quality of healthcare services.

Objective:To explore the effects of smart cloud follow-up platform in home care for elderly patients with pacemakers.Methods:Totally 120 elderly patients who received pacemaker implantation in a ClassⅢ Grade A hospital in Henan province between August 2018 and August 2019 were selected by convenient sampling. The 60 patients admitted from August 2018 to February 2019 were included into the control group, while the 60 patients admitted from March to August 2019 were selected into the experimental group. Patients in the experimental group received home care based on the cloud follow-up platform, while patients in the control group received routine continuing care at home. After 3 months of intervention, the complication rate, functional exercise compliance and quality of life were compared between the two groups using χ 2 test and t test. Results:Totally 59 patients in the experimental group and 58 patients in the control group completed the study. After intervention, the complication rate in the experimental group was 32.2% (19/59) , lower than 89.7% (52/58) in the control group, and the difference was statistically significant (χ 2=9.307, P< 0.05) ; the scores of physical exercise compliance after pacemaker implantation, postoperative precautions compliance and compliance of initiative advice seeking in the experimental group were (26.05±3.07) , (15.42±1.24) and (11.85±1.96) , higher than those in the control group (18.53±2.93) , (9.66±2.40) and (6.05±1.58) in the control group, and the differences were statistically significant ( t=13.548, 16.331, 17.558; P< 0.01) ; the total quality of life score in the experimental group was (161.12±9.94) , higher than (132.50±9.20) in the control group, and the difference was statistically significant ( t=16.149, P < 0.01) . Conclusions:The home management model based on the smart cloud follow-up platform improves home follow-up experience of elderly patients with pacemaker, the compliance of home functional exercises, and their quality of life.

Objective: To investigate the feasibility and effectiveness of endoscopicretrograde cholangio-pancreatography(ERCP)in the management of long-term complications after pancreaticoduodenectomy. Methods: From January 2009 to July 2018, the clinical data of 62 patients with biliary or pancreatic long-term complications after pancreatoduodenectomy were reviewed at Department of General Surgery, and the corresponding ERCP were carried out in the multi-disciplinary cooperation.There were 39 males and 24 females.The age was 56.5 years(aging from 13 to 76 years). The time of treatment was 3 months to 20 years after pancreatoduodenectomy.The long-term biliopancreatic complications after pancreatoduodenectomy included 51 cases of biliary calculi, 42 cases of bilioenteric anastomotic stenosis with proximal bile duct dilatation, and 11 cases of pancreaticointestinal anastomosis stenosis with distal pancreatic duct dilatation.All patients received conventional duodenoscopy or single-balloon enteroscopy assisted ERCP under general anesthesia. Results: A total of 95 ERCP were performed in 62 patients, averaging 1.5 times per case.The long-term complications of cholangiopancreatic after pancreatoduodenectomy(ERCP indications) included 56 times of bile duct stones(58.9%), 45 times of bilioenteric anastomatic stricture(47.4%), 11 times of recurrent pancreatitis(11.6%), 6 cases(6.3%) of bilioenteric anastomatic foreign body, 3 times of intrahepatic bile duct stenosis(3.2%). Among the 95 times, 82 times(86.3%) achieved endoscopic endoscopy, 76 times(80.0%) were diagnosed successfully, and 72 times(75.8%) were successfully treated with ERCP.Small intestinal perforation occurred in 1 patient undergoing duodenoscopy, and then healed by surgical repair. Conclusion Multi-disciplinary collaboration of ERCP is safe and effective in the treatment of long-term complications after pancreaticoduodenectomy, but the long-term effect still needs further clinical follow-up.

AIM:To investigate the molecular mechanism of Xijiao Dihuang decoction combined with Yinqiao powder (XDY) in treating viral pneumonia, and the effects of XDY on TNF-α-induced permeability in pulmonary microvascular endothelial cells (PMVEC) and the role of PKC-SSeCKS pathway involved.METHODS:The electric conductivity method was used to detect transendothelial electrical resistance (TER) of primarily cultured PMVEC on Transwell chamber at different time points to determine the permeability of PMVEC.After pretreatment for 24 h, the activity of PKC, TER, and the expression of SSeCKS at mRNA and protein levels were detected.Laser scanning confocal microscopy was used to observe the location of SSeCKS and construction of F-actin in PMVEC.RESULTS:The permeability of PMVECs induced by TNF-α reached the peak at 24 h.Compared with control group, the TER in TNF-α group was decreased, and the activity of PKC was increased.Compared with TNF-α group, the activity of PKC in TNF-α with PKC inhibitor group and TNF-α with XDY group was decreased, while the TER was increased, without difference from control group.Compared with control group, the mRNA expression of SSeCKS and phospho-SSeCKS was increased in PMVEC of TNF-α group, but decreased in TNF-α with XDY group compared with TNF-α group.In control group, F-actin was mainly located around the nucleus and at cytoplasmic borders of PMVEC, forming the dense peripheral bundle, and SSeCKS was evenly scattered in the cell.In TNF-α group, the dense peripheral bundle of F-actin surrounding the cells almost disappeared, and SSeCKS was concentrated around the nucleus.Compared with TNF-α group, the distribution and the structure of F-actin and SSeCKS nearly returned to normal in TNF-α with XDY group.CONCLUSION:XDY inhibits the activation of PKC signaling pathway in PMVEC caused by TNF-α to reduce the mRNA expression of SSeCKS and the phosphorylation of SSeCKS, thus preventing the deformation of endothelial cells and reducing the permeability of PMVEC.

Objective To understand the effectiveness of peroral endoscopic myotomy(POEM)for achalasia and secondary severe malnutrition in children and the effectiveness of nutrition support before and after POEM.Method Treatment of POEM,nutrition support(tube feeding by percutaneous endoscopic gastrostomy three months before operation)in one case were recorded and analyzed.Results POEM was successful without any complication such as perforation,bleeding,and pneumoderm.The child suffered from fever after surgery,which was dissolved after symptomatic treatment three days later.Chest pain was relieved after changing position.The diet was changed from liquid to semifluid,and then to normal diet.The child did not have dysphagia.During the 6-month follow-up,the patient had normal diets by oral route.The weight was 32 kg before achalasia and decreased to 18 kg after 9 months(at admission);it then increased to 29 kg after short-time(12 days)parenteral nutrition and long-time(3 months)enteral nutrition by percutaneous endoscopic gastrostomy,and then the patient received POEM.His weight was 30,31,31,29,and 31 kg 1,4,6,9,and 13 months,respectively,after POEM.Conclusion POEM can effectively cure achalasia in pediatric patients and improve the quality of life.Rational enteral nutrition can improve nutrition status and facilitate a successful POEM.

Objective:To study urine albumin excretion (UAE) and its related factors in patients with essential hyper‐tension (EH) .Methods :A total of 113 EH patients without significant target organ damage were enrolled as EH group ,while another 92 healthy subjects were regarded as healthy control group .Ratio of morning urinary albumin to creatinine was measured and regarded as UAE index .Plasma homocysteine (Hcy) ,serum uric acid ,creatinine , blood urea nitrogen ,blood glucose ,blood lipids etc .levels were measured ,and compared between two groups Re‐sults:Compared with healthy control group ,there were significant rise in UAE ,body mass index (BMI) ,waist hip ratio ,blood pressure ,pulse pressure ,heart rate ,plasma levels of triglyceride (TG) ,low density lipoprotein choles‐terol (LDL‐C) ,serum uric acid and Hcy (P<0.05 or <0.01) ,and significant reduction in level of high density lip‐oprotein cholesterol (HDL‐C) in EH group ( P=0.001) .Pearson correlation analysis indicated that lgUAE was pos‐itively correlated with lgTG (r=0.257 ,P=0.015) and estimated glomerular filtration rate (eGFR ,r=0.284 ,P=0.007) ,and inversely correlated with lg creatinine (r= -0.277 ,P=0.008) in healthy control group ,while in EH group ,lgUAE was positively correlated BMI (r=0.231 ,P=0.014) ,lgTG (r=0.200 ,P=0.034) and lgHcy (r=0.244 , P=0.009) .Muti-factor gradual regression analysis indicated that lg TG (β=0.265 ,P=0.001) and lg Hcy (β=0.170 , P=0.012) were independently positively correlated with lg UAE , R2 =0.112.Conclusion:UAE level significantly rises in EH patients ,and it′s significantly positively correlated with plasma levels of TG and Hcy .