Objective:To analyze the predictive value of the preoperative lymphocyte-to-monocyte ratio (LMR) for the postoperative prognosis of distal cholangiocarcinoma.Methods:Clinical data of 197 patients with distal cholangiocarcinoma undergoing radical surgery at Beijing Chaoyang Hospital Affiliated to Capital Medical University from January 2011 to December 2023 were retrospectively analyzed, including 118 males and 79 females, aged (65.1±10.2) years. Patients were randomly divided into the training set ( n=137) and the test set ( n=60) in a ratio of 7∶3. The training set is used to construct the nomogram, and the test set is used to evaluate the nomogram. Multivariate analysis of the influencing factors of long-term survival after surgery for distal cholangiocarcinoma was conducted using Lasso regression and Cox regression. And based on the results of multiple factors, a nomogram for predicting the postoperative prognosis of distal cholangiocarcinoma was constructed. The receiver operating characteristic (ROC) curve, conformance index, calibration curve and decision curve were used to analyze and evaluate the predictive efficacy of the model. Results:Lasso regression screening showed that smoking history, preoperative LMR, preoperative total bilirubin, preoperative carbohydrate antigen (CA) 19-9, intraoperative blood loss, tumor differentiation degree, T staging of tumor, portal vein system invasion, nerve invasion and lymph node metastasis were risk factors affecting the long-term survival after surgery (all P<0.05). Multivariate Cox regression analysis showed that preoperative LMR, CA19-9, T staging of tumor, portal vein system invasion and lymph node metastasis were the influencing factors for long-term survival after surgery for distal cholangiocarcinoma. Based on the above factors, a nomogram for predicting the postoperative prognosis of distal cholangiocarcinoma was constructed. The areas under the ROC curves of this nomogram for predicting 3-year postoperative survival in the training set and the test set were 0.806 (95% CI: 0.719-0.893) and 0.811 (95% CI: 0.696-0.927), respectively. The consistency indices of the training set and the test set were 0.730 (95% CI: 0.678-0.783) and 0.714 (95% CI: 0.637-0.790), respectively. The calibration curves of the model in the training set and test set shows that the model fits well in both sets. The decision curve analysis (DCA) shows that the model has good clinical predictive efficacy in both sets. When the threshold range in the training set is between 10% and 84% and in the test set is between 18% and 82%, the model can bring benefits in predicting postoperative prognosis. Conclusion:The preoperative LMR level is one of the influencing factors for the postoperative prognosis of patients after surgery for distal cholangiocarcinoma. LMR-based model can effectively predict postoperative prognosis of patients with distal cholangiocarcinoma.

Objective:To evaluate the value of HALP index on postoperative survival of patients with distal cholangiocarcinoma.Methods:A retrospective analysis was performed on 165 patients with distal cholangiocarcinoma who underwent surgery at Beijing Chaoyang Hospital, Capital Medical University from Jan 2011 to Dec 2022. Hemoglobin, albumin, lymphocyte count, and platelet count were recorded within one week before surgery, and hemoglobin×albumin×lymphocyte count/platelet count (HALP) was calculated. The receiver operating characteristic curve was drawn to determine the optimal cutoff value for predicting postoperative survival. According to the cutoff value, the patients were divided into high HALP group and low HALP group, and the prognosis of different groups was compared. Multivariate COX regression analysis was used to construct a prediction model for variables with statistically significant differences.Results:The median overall survival (OS) for the entire cohort was 29 months, with cumulative 1-, 3-, and 5-year survival rates of 78.2%, 38.8%, and 30.4%, respectively. The low-HALP group (median OS: 22 months) had significantly inferior survival compared to the high-HALP group (median OS: 37 months), with 1-, 3-, and 5-year survival rates of 70.1%,31.4%,22.8% vs. 89.7%,45.3%,38.1% ( χ2=7.695, P=0.006). Conclusion:The HALP index calculated from the patient's preoperative indicators can be used to predict the overall survival of patients with distal cholangiocarcinoma.

Objective:To analyze the predictive value of the preoperative lymphocyte-to-monocyte ratio (LMR) for the postoperative prognosis of distal cholangiocarcinoma.Methods:Clinical data of 197 patients with distal cholangiocarcinoma undergoing radical surgery at Beijing Chaoyang Hospital Affiliated to Capital Medical University from January 2011 to December 2023 were retrospectively analyzed, including 118 males and 79 females, aged (65.1±10.2) years. Patients were randomly divided into the training set ( n=137) and the test set ( n=60) in a ratio of 7∶3. The training set is used to construct the nomogram, and the test set is used to evaluate the nomogram. Multivariate analysis of the influencing factors of long-term survival after surgery for distal cholangiocarcinoma was conducted using Lasso regression and Cox regression. And based on the results of multiple factors, a nomogram for predicting the postoperative prognosis of distal cholangiocarcinoma was constructed. The receiver operating characteristic (ROC) curve, conformance index, calibration curve and decision curve were used to analyze and evaluate the predictive efficacy of the model. Results:Lasso regression screening showed that smoking history, preoperative LMR, preoperative total bilirubin, preoperative carbohydrate antigen (CA) 19-9, intraoperative blood loss, tumor differentiation degree, T staging of tumor, portal vein system invasion, nerve invasion and lymph node metastasis were risk factors affecting the long-term survival after surgery (all P<0.05). Multivariate Cox regression analysis showed that preoperative LMR, CA19-9, T staging of tumor, portal vein system invasion and lymph node metastasis were the influencing factors for long-term survival after surgery for distal cholangiocarcinoma. Based on the above factors, a nomogram for predicting the postoperative prognosis of distal cholangiocarcinoma was constructed. The areas under the ROC curves of this nomogram for predicting 3-year postoperative survival in the training set and the test set were 0.806 (95% CI: 0.719-0.893) and 0.811 (95% CI: 0.696-0.927), respectively. The consistency indices of the training set and the test set were 0.730 (95% CI: 0.678-0.783) and 0.714 (95% CI: 0.637-0.790), respectively. The calibration curves of the model in the training set and test set shows that the model fits well in both sets. The decision curve analysis (DCA) shows that the model has good clinical predictive efficacy in both sets. When the threshold range in the training set is between 10% and 84% and in the test set is between 18% and 82%, the model can bring benefits in predicting postoperative prognosis. Conclusion:The preoperative LMR level is one of the influencing factors for the postoperative prognosis of patients after surgery for distal cholangiocarcinoma. LMR-based model can effectively predict postoperative prognosis of patients with distal cholangiocarcinoma.

Objective:To evaluate the value of HALP index on postoperative survival of patients with distal cholangiocarcinoma.Methods:A retrospective analysis was performed on 165 patients with distal cholangiocarcinoma who underwent surgery at Beijing Chaoyang Hospital, Capital Medical University from Jan 2011 to Dec 2022. Hemoglobin, albumin, lymphocyte count, and platelet count were recorded within one week before surgery, and hemoglobin×albumin×lymphocyte count/platelet count (HALP) was calculated. The receiver operating characteristic curve was drawn to determine the optimal cutoff value for predicting postoperative survival. According to the cutoff value, the patients were divided into high HALP group and low HALP group, and the prognosis of different groups was compared. Multivariate COX regression analysis was used to construct a prediction model for variables with statistically significant differences.Results:The median overall survival (OS) for the entire cohort was 29 months, with cumulative 1-, 3-, and 5-year survival rates of 78.2%, 38.8%, and 30.4%, respectively. The low-HALP group (median OS: 22 months) had significantly inferior survival compared to the high-HALP group (median OS: 37 months), with 1-, 3-, and 5-year survival rates of 70.1%,31.4%,22.8% vs. 89.7%,45.3%,38.1% ( χ2=7.695, P=0.006). Conclusion:The HALP index calculated from the patient's preoperative indicators can be used to predict the overall survival of patients with distal cholangiocarcinoma.

Objective:To investigate the effect of cholesterol-modified prognostic nutritional index (cPNI) on postoperative long-term prognosis of the borderline resectable pancreatic cancer (BRPC).Methods:Clinical data of 173 patients with BRPC admitted to the Department of Hepatobiliary and Pancreaticosplenic Surgery, Beijing Chaoyang Hospital, Capital Medical University from January 2011 to September 2023 were retrospectively analyzed, including 90 males and 83 females, aged (61.7±9.8) years. The receiver operating curve (ROC) of preoperative cPNI predicting 1-year postoperative survival was drawn and the optimal cut-off value in predicting 1-year survival was 77.36. Patients were divided into low cPNI ( n=83, cPNI≤77.36) and high cPNI group ( n=90, cPNI>77.36). Kaplan-Meier method was used for survival analysis, log-rank test was used for univariate analysis, and Cox proportion hazard model was used for multivariate analysis to reveal the effect of cPNI on postoperative long-term survival in patients with BRPC. Results:The cumulative survival rates at 1, 2 and 3 years after surgery in low cPNI group and high cPNI group were 70.6%, 40.3%, 21.8%, and 48.3%, 21.5%, 9.5%, respectively ( χ2=8.49, P=0.004). Univariate analysis showed that preoperative cPNI, length of portal vein invasion, tumor differentiation degree, tumor TNM stage, tumor diameter, lymph node metastasis, and postoperative chemotherapy were correlated with long-term survival of BRPC patients (all P<0.05). Multivariate analysis showed that BRPC patients with preoperative cPNI >77.36 ( HR=1.452, 95% CI: 1.026-2.053, P=0.035) had a increased risk of postoperative death, while patients with length of portal venous invasion >3.0 cm, poorer tumor differentiation, lymph node metastasis and no postoperative chemotherapy had an increased risk of postoperative death. Conclusion:Preoperative cPNI >77.36 is a risk factor for long-term survival in BRPC patients.

Antibody‒drug conjugates (ADCs), which combine the advantages of monoclonal antibodies with precise targeting and payloads with efficient killing, show great clinical therapeutic value. The ADCs' payloads play a key role in determining the efficacy of ADC drugs and thus have attracted great attention in the field. An ideal ADC payload should possess sufficient toxicity, low immunogenicity, high stability, and modifiable functional groups. Common ADC payloads include tubulin inhibitors and DNA damaging agents, with tubulin inhibitors accounting for more than half of the ADC drugs in clinical development. However, due to clinical limitations of traditional ADC payloads, such as inadequate efficacy and the development of acquired drug resistance, novel highly efficient payloads with diverse targets and reduced side effects are being developed. This perspective summarizes the recent research advances of traditional and novel ADC payloads with main focuses on the structure-activity relationship studies, co-crystal structures, and designing strategies, and further discusses the future research directions of ADC payloads. This review also aims to provide valuable references and future directions for the development of novel ADC payloads that will have high efficacy, low toxicity, adequate stability, and abilities to overcome drug resistance.

Objective To understand the prevalence and risk factors of chronic diseases in Xilinguole League, Inner Mongolia, and its risk factors in 2017, so as to provide evidence for the prevention and treatment of chronic non-communicable diseases. Methods The stratified cluster random sampling method was used to conduct a questionnaire survey on the residents in Xianghuangqi area of Xilin Gol League, Inner Mongolia. Epidate 3.1 was used for data entry, and SPSS 25.0 was used for statistical analysis. Results The average age of the subjects was 46.2 ± 11.2 years old, and the prevalence of chronic diseases was 25.26%. The prevalence of hypertension ranks first at 18.56%; the prevalence of women is slightly higher than that of men (χ²=0.968, p<0.05); the difference in prevalence among different ethnic groups is statistically significant (χ²=1447.730, p<0.01); The prevalence of smokers is higher than that of non-smokers (χ²=7.790, p＜0.05); the prevalence of age increases (χ²_trend=137.214, p＜0.01); the prevalence of higher education shows a downward trend (χ²_trend=84.258, p＜0.01); the prevalence of BMI increases showed an upward trend (χ²_trend=31.956, p＜0.01). Smoking is a risk factor for chronic diseases (OR: 1.33, 95% CI: 1.01~1.76); age is a risk factor for chronic diseases, and the prevalence is significantly higher in the age group >69 (OR: 9.11, 95% CI: 2.78~29.78); Education level is a protective factor for chronic diseases. The prevalence of college degree and above is lower than that of illiteracy (OR: 0.16, 95%CI: 0.07~0.36); residents with BMI> 28 have the highest risk of disease (OR: 2.94, 95%CI: 1.36) ~6.32). Conclusion The prevalence of chronic diseases of residents in Xianghuang Banner of Xilingol League of Inner Mongolia should not be ignored. The prevalence of chronic diseases of Mongolian residents is higher than that of Han people. Therefore, it is necessary to change their living and eating habits and improve their awareness of prevention so as to reduce the prevalence of chronic diseases.

Objective To design, synthesize and measure antifungal activities of galloyl piperazine derivatives. Methods Trimethoxyl gallic acid was used as starting material, reacted with piperazine in the presence of PyBOP/DIEA to afford the intermediates. The target compounds were obtained through the reaction with corresponding acids after deprotection gave. The antifungal activities of the target compounds were evaluated by FLC-resistant Candida albican isolated according to the CLSI recommended method. Results 11 target compounds were synthesized and six of them showed more potent antifungal activities than gallic acid. Conclusion Galloyl piperazine derivatives could enhance antifungal activities. Galloyl moiety was an important pharmacophore, which could improve antifungal activities with the introduction of cinnamic acid and 2,3-dichlorobenzoic acid.