Objective To analyze survival outcomes and influencing factors among patients with colorectal cancer in Yunnan Province. Methods Clinical data were retrospectively collected from 4 892 patients with colorectal cancer. Survival data were obtained through follow-up. Overall survival (OS) was calculated by using the Kaplan-Meier method. Univariate analysis was performed by applying the log-rank test. Meanwhile, multivariate analysis employed the Cox proportional hazards regression model. Results The 1-, 3-, 5-, and 10-year OS rates for the entire cohort were 91.90%, 74.40%, 64.40%, and 28.70%, respectively. Univariate analysis revealed that age, ethnicity, region, differentiation grade, TNM stage, clinical stage, metastatic status, histological type, and treatment modality (chemotherapy, radiotherapy, and surgery) were associated with patient prognosis (all P<0.05). Multivariate analysis identified age (HR=1.250), region (HR=1.262), differentiation grade (HR=0.761), clinical stage (HR=3.128), and treatment modality (chemotherapy, HR=0.644; radiotherapy, HR=1.605; surgery, HR=0.384) as independent factors affecting survival prognosis in patients with colorectal cancer (all P<0.001). Conclusion Age, region, clinical stage, and treatment modality are independent factors influencing survival among patients with colorectal cancer in Yunnan Province. In clinical practice, these factors should be integrated to develop individualized prevention and treatment strategies, thereby improving patient outcomes.

Objective To fabricate nanosilicate functionalized polycaprolactone(PCL/LAP)electrospun membrane and evaluate its role in bone marrow mesenchymal stem cells(BMSCs)-induced bone repairing.Methods The PCL/LAP electrospun membranes were fabricated via electrospinning technology and co-cultured with rat BMSCs.The cytocompatibility of the membranes was evaluated through cytoskeleton staining,live/dead cell staining and CCK-8 assay.The migration capacity of BMSCs was assessed using scratch assay,Transwell migration experiments and expression of migration-related genes(Pdgf and Tgfβ)was evaluated by qRT-PCR.The os-teogenic differentiation and pro-angiogenesis potential were determined by alkaline phosphatase(ALP)staining,alizarin red staining,expression levels of osteogenesis-related genes(Alp,Col1a1,Runx2,Bglap and Bmp2)and angiogenesis-related genes(Angpt1,Fgf2 and Vegfa)along with RUNX2 protein expression.PCL and PCL/LAP electrospun membranes conditioned medium was subsequently used to stimulate vascular endothelial cells(EAhy926).The expression of angiogenesis-associated genes(KDR,ENOS and HIF1A)was quantified by qRT-PCR.Results BMSCs adhered well to the surface of the PCL/LAP membranes,with no significant impact on cell viability(P＞0.05).PCL/LAP membranes not only promoted the proliferation(P＜0.05),migration(P＜0.05),but also enhanced ALP activity and mineralized nodule formation(P＜0.05),increased osteogenic differentiation gene and protein expression(P＜0.05)of BMSCs.Moreover,PCL/LAP promoted the expression of angiogenic genes of BMSCs(P＜0.05),to indirectly regulate angiogenesis-related gene expression in vascular endothelial cells(P＜0.05).Conclusion PCL/LAP electrospun membranes exhibit excellent biocompatibility and can promote proliferation,migration,osteogenic differentiation and BMSC-mediated angiogenic differentiation,showing great potential for bone defect repairing as barrier membrane.

On August 24 2024, Xiaoshan District Center for Disease Control and Prevention, Hangzhou City, received a report of two cases of varicella infection among staff in the intensive care unit (ICU) of a hospital in its jurisdiction. The center immediately organized personnel to conduct an epidemiological investigation of the cases and their close contacts. The index case was a patient admitted to the ICU who had large areas of red rash and pustules on the chest, back, and right axilla. This case was diagnosed with herpes zoster by a dermatology consultation within the hospital. The other nine secondary cases were all nursing staff in the ICU, who were clinically diagnosed with varicella between August 21 and September 1, with an attack rate of 14.06%. All secondary varicella cases had a history of contact with the herpes zoster case and no history of varicella infection. Their varicella vaccination history was unknown. Based on the results of the on-site epidemiological and sanitary investigations, it was determined that this was an outbreak of varicella in the hospital caused by a herpes zoster case. After the last case was diagnosed, no new cases were reported within the longest incubation period (21 days), and the outbreak was declared over on September 21. Close contact with the herpes zoster case was likely the main cause of the outbreak. This highlights the need for early identification and isolation of suspected herpes zoster cases in hospitals in the future, as well as enhanced protective measures to prevent nosocomial infections.

Objective To fabricate nanosilicate functionalized polycaprolactone(PCL/LAP)electrospun membrane and evaluate its role in bone marrow mesenchymal stem cells(BMSCs)-induced bone repairing.Methods The PCL/LAP electrospun membranes were fabricated via electrospinning technology and co-cultured with rat BMSCs.The cytocompatibility of the membranes was evaluated through cytoskeleton staining,live/dead cell staining and CCK-8 assay.The migration capacity of BMSCs was assessed using scratch assay,Transwell migration experiments and expression of migration-related genes(Pdgf and Tgfβ)was evaluated by qRT-PCR.The os-teogenic differentiation and pro-angiogenesis potential were determined by alkaline phosphatase(ALP)staining,alizarin red staining,expression levels of osteogenesis-related genes(Alp,Col1a1,Runx2,Bglap and Bmp2)and angiogenesis-related genes(Angpt1,Fgf2 and Vegfa)along with RUNX2 protein expression.PCL and PCL/LAP electrospun membranes conditioned medium was subsequently used to stimulate vascular endothelial cells(EAhy926).The expression of angiogenesis-associated genes(KDR,ENOS and HIF1A)was quantified by qRT-PCR.Results BMSCs adhered well to the surface of the PCL/LAP membranes,with no significant impact on cell viability(P＞0.05).PCL/LAP membranes not only promoted the proliferation(P＜0.05),migration(P＜0.05),but also enhanced ALP activity and mineralized nodule formation(P＜0.05),increased osteogenic differentiation gene and protein expression(P＜0.05)of BMSCs.Moreover,PCL/LAP promoted the expression of angiogenic genes of BMSCs(P＜0.05),to indirectly regulate angiogenesis-related gene expression in vascular endothelial cells(P＜0.05).Conclusion PCL/LAP electrospun membranes exhibit excellent biocompatibility and can promote proliferation,migration,osteogenic differentiation and BMSC-mediated angiogenic differentiation,showing great potential for bone defect repairing as barrier membrane.

Objective:To synthesize the real experiences of medical staff's organizational silence behavior.Methods:A systematic search was conducted in databases including PubMed, Web of Science, Embase, Cochrane Library, CINAHL, EBSCO, ProQuest, China National Knowledge Infrastructure, Wanfang Data, VIP, and China Biology Medicine disc, collecting qualitative studies on medical staff's experiences related to organizational silence behavior. The search period covered the establishment of the databases until June 2024. The quality of the included studies was assessed using the Joanna Briggs Institute's qualitative research quality evaluation standards, and results were integrated using an aggregative synthesis approach.Results:A total of 10 studies were included, with 65 findings summarized into 11 new categories, which were further synthesized into four overarching conclusions: organizational silence is complex, with respect and concern coexisting, many factors contribute to organizational silence, medical staff experience negative emotions as a result of organizational silence, there is a desire for recognition and support.Conclusions:The experience of organizational silence behavior among medical staff is complex. Managers should focus on this issue, encourage individuals to voice their concerns, provide diverse support mechanisms, and enhance positive experiences to reduce the prevalence of organizational silence.

At present, conventional periodontal treatment cannot achieve complete and effective periodontal tissue regeneration. Cell sheet technology (CST) is a kind of cell transplantation method without scaffold material that can maintain complete extracellular matrix, important ion channels of cells, growth factor receptors, etc., and ensure the interaction between cells and the extracellular matrix. In this paper, the application and research progress of the cell sheet in the field of periodontal tissue regeneration are reviewed. Different types of seed cells can be prepared into monolayer cell sheet, multilayer cell sheet, cell sheet fragments and cell sheet polymers. Among them, the monalayer cell sheet is easily damaged and requires high deoperator; the multilayer cell sheet shows improved mechanical properties, but its thickness needs to be controlled to avoid cell necrosis. The cell sheet fragment can be used in the narrow space between the alveolar bone and root cementum to reduce the difficulty of operation and improve the mechanical properties of the cell sheet. Cell sheet polymers are three-dimensional structures that can provide strong mechanical support and improve the stability of the cell sheet, but the stability of their biological activity needs to be further improved. In methods for construction of the cell sheet, the antifibrosis and antiangiogenesis properties of the amniotic sheet have shown that this structure is suitable as the matrix of cell culture; the method of using a temperature-sensitive culture dish is simple and easy; continuous induction with vitamin C can retain some important proteins on the cell surface; and the magnetic tissue engineering method can increase cell adhesion and easily form a stable cell sheet. The above methods have their own characteristics. In clinical applications, monolayer cell sheet is mainly used for direct transplantation to the receiving site to construct periodontal tissue; multilayer cell sheet of the same or different species overlap and are then transplanted to the receiving site; and multilayer cell sheet of the same kind are wrapped with scaffold material and then transplanted to the receiving site to construct a three-dimensional structure. Overall, cell sheet technology has shown good potential in periodontal tissue regeneration.

Objective:To investigate the expressions of TGF-β1,survivin and caspase-3 in hepatolithiasis-associated intrahepatic cholangiocarcinoma(ICC)tissue and their clinical significance.Methods:The expressions of TGF-β1,survivin and caspase-3 in intrahepatic bile duct specimens from 52 patients with intrahepatic stones and concomitant ICC(tumor group)and 30 patients with intrahepatic stones and chronic inflammation(inflammation group)as well as 30 specimens of normal intrahepatic bile duct were determined by immunohistochemical staining.The relations of the three factors with the clinicopathologic characteristics and prognosis of ICC patients were analyzed.Results:In tumor group,inflammation group and normal group,the positive expression rates TGF-β1 and survivin presented a successively decreasing order,while the positive expression rates of caspase-3 showed a successively increasing order(all P<0.05);in ICC tissue,the expressions of TGF-β1 and survivin showed a positive correlation(r=0.917,P<0.01),and both had a negative correlation with that of caspase-3(r=-0.890,P<0.01;r=-0.894,P<0.01).the results of univariate and multivariate analyses showed that TGF-β1,survivin and caspase-3 were independent influential factors for the prognosis of patients with hepatolithiasis-associated ICC(all P<0.05);the survival rates of patients with positive TGF-β1 or survivin expression were significantly reduced compared with respective negative ones(χ2=13.192,P=0.001;χ2=10.536,P=0.002),and the survival rate of patients with positive caspase-3 expression was significantly higher than those with its negative expression(χ2=5.469,P=0.023).Conclusion:The expressions of TGF-β1,survivin and caspase-3 are abnormal in hepatolithiasis-associated ICC tissue,and they may probably be jointly involved in the occurrence and development of this condition.

Objective:To investigate the expressions of TGF-β1,survivin and caspase-3 in hepatolithiasis-associated intrahepatic cholangiocarcinoma(ICC)tissue and their clinical significance.Methods:The expressions of TGF-β1,survivin and caspase-3 in intrahepatic bile duct specimens from 52 patients with intrahepatic stones and concomitant ICC(tumor group)and 30 patients with intrahepatic stones and chronic inflammation(inflammation group)as well as 30 specimens of normal intrahepatic bile duct were determined by immunohistochemical staining.The relations of the three factors with the clinicopathologic characteristics and prognosis of ICC patients were analyzed.Results:In tumor group,inflammation group and normal group,the positive expression rates TGF-β1 and survivin presented a successively decreasing order,while the positive expression rates of caspase-3 showed a successively increasing order(all P<0.05);in ICC tissue,the expressions of TGF-β1 and survivin showed a positive correlation(r=0.917,P<0.01),and both had a negative correlation with that of caspase-3(r=-0.890,P<0.01;r=-0.894,P<0.01).the results of univariate and multivariate analyses showed that TGF-β1,survivin and caspase-3 were independent influential factors for the prognosis of patients with hepatolithiasis-associated ICC(all P<0.05);the survival rates of patients with positive TGF-β1 or survivin expression were significantly reduced compared with respective negative ones(χ2=13.192,P=0.001;χ2=10.536,P=0.002),and the survival rate of patients with positive caspase-3 expression was significantly higher than those with its negative expression(χ2=5.469,P=0.023).Conclusion:The expressions of TGF-β1,survivin and caspase-3 are abnormal in hepatolithiasis-associated ICC tissue,and they may probably be jointly involved in the occurrence and development of this condition.

Objective To compare the lung volume before and after the operation for the treatment of chronic empyema with CT 3-dimensional imaging,and to evaluate its role in the assessment of pulmonary function. Methods A total of 78 patients with chronic empyema from 2000 to 2016 in our hospital were enrolled in this study.The patients were divided into two groups according to the operational styles,with 47 cases in the decortication group and 31 cases in the catheter drainage group respectively.Reformation of the chest CT data was used to determine the lung volumes and the routine pulmonary function tests(PFT)were performed before and after the operation. The lung volumes and the PFT results before and after the operation were compared between the two groups with t test. Then multiple linear regression analysis was applied to test the relationship between the lung volumes and the values of PFT after the operation. Results The mean lung volume of catheter drainage group was(1 548±467)cm3,while it was(1 418±802) cm3for the decortication group preoperatively(t=1.665,P=0.07).After the operation,the mean lung volume of decortication group was(2 677±815)cm3,while it was(2 169±185)cm3for the catheter drainage group. There was statistically significant difference for the increase of lung volume between the two groups after operation(t=2.371,P<0.05).There was no significant difference between the two groups before the operation for the values of the PFT(t=1.467 to 1.874,P>0.05). After the operation, the values of the PFT in the decortication group were higher than those in the catheter drainage group(t=1.990 to 2.799, P<0.05). The changes of postoperative lung volume were positively correlated with the values of the PFT(β=0.312 to 0.701,P<0.05). Conclusions Decortication has a better effect on the lung volume and the pulmonary function for patients suffered from chronic empyema. CT modeling (3-dimensional-imaging) is an effective method for evaluating the pulmonary function of postoperative lung according to the lung volume measurement.

Objective To observe the clinical significance and variation of plasma B-type brain natriuretic peptide (△BNP) levels before and after treadmill exercise test (TET) in women with coronary heart disease(CHD). Methods Sixty-one women with suspected coronary heart disease were selected (except for heart failure, blood BNP levels were normal). All patients underwent coronary angiography, were divided into two groups, 25 cases in normal group and 36 cases in coronary heart disease group. Plasma BNP levels were measured before and after the TET test, and data were compared between two groups after one week.Furthermore, the levels of△BNP before and after TET in patients with different degrees of coronary artery lesions were compared. The diagnostic value of the levels of△BNP in coronary heart disease was evaluated by the re-ceiver operating characteristic curve (ROC). Results The plasma BNP level was significantly increased after TET (44.20± 14.53) than that before the test (32.82±10.72) in coronary heart disease group (P<0.01). There were significant differences in levels of△BNP before and after TET in patients with different degrees of coronary lesions. The levels of△BNP were sig-nificantly higher in multi-vessel disease group than those of single and double lesion group (P<0.05). The level of△BNP was significantly higher in double lesion group than that of single lesion group (P < 0.05). When the level of △BNP=7.3 ng/L, the sensibility value and specificity value for the diagnosis of CHD was 82.4%and 81.5%. The area under curve (AUC) was 0.900, and 95%confidence interval was 0.796-0.962. Conclusion The detection of△BNP before and after TET has an important clinical significance in the diagnosis and evaluation of coronary heart disease in women patients.