Objective To compare the colonoscopy results of patients with positive fecal SDC2,ADHFE1,and PPP2R5C gene methylation tests to those with positive fecal occult blood tests,and analyze the effectiveness of colorectal cancer(CRC)screening.This study aims to provide a scientific basis for risk assessment in CRC screening.Methods From December 2023 to May 2024,9 284 combined test kits for SDC2,ADHFE1,and PPP2R5C gene methylation were distributed to high-risk individuals aged 40～80 years.Among them,841 patients(9.1％)tested positive.These patients were encouraged via telephone to undergo colonoscopy,with colonoscopy combined with pathological diagnosis as the gold standard,a total of 495 positive patients completed electronic colonoscopy.Among them,the 251 patients who tested positive for fecal SDC2,ADHFE1,and PPP2R5C gene methylation and completed electronic colonoscopy were the observation group;concurrently,244 patients who tested positive for fecal occult blood tests and underwent electronic colonoscopy were selected as the control group.Compare two groups of patients with polyp,number,shape,pathological changes and pathological types.Results There was no statistically significant difference in number and lesion location of polyps between the two groups of patients(P>0.05).The proportion of Yamada type Ⅰ in the observation group was lower than that in the control group,while the proportion of Yamada type Ⅱ was higher than that in the control group.The difference was statistically significant(P<0.05).In the observation group,1 case(0.4％)of CRC,62 cases(24.7％)of advanced adenomas,78 cases(31.1％)of non-advanced adenomas,20 cases(8.0％)of hyperplastic polyps,and 90 cases(35.9％)with no dysplastic lesions were identified.In the control group,6 cases(2.5％)of CRC,38 cases(15.6％)of advanced adenomas,53 cases(21.7％)of non-advanced adenomas,19 cases(7.8％)of hyperplastic polyps,and 128 cases(52.5％)with no dysplastic lesions were identified.The proportions of non-advanced adenomas and advanced adenomas were lower in the control group than those in the observation group,while the no dysplastic lesions rate was higher in the control group,the differences were statistically significant(P<0.05).Conclusion The detection rate of colorectal non-advanced adenomas and advanced adenomas is higher with fecal SDC2,ADHFE1,and PPP2R5C gene methylation testing compared to the fecal occult blood test.

Objective: To analyze factors impacting mental health status of medical students based on ecological systems theory, so as to provide reference for the mental health promotion system for medical students. Methods: In June 2024, 1 760 medical school students randomly selected from 19 different kinds of medical colleges in eastern China by stratified cluster were surveyed using questionnaires and expert interviews. Descriptive statistics, cross analysis, hierarchical linear regression analysis, structural equation models were used for data analysis. Results: Medical school students had higher satisfaction with the school (65.85%) and a great sense of perceived social support (57.16%). Furthermore, 91.14% of the students had normal interpersonal relationships. However, 44.89% reported that their mental health was impacted by high level of depression. The hierarchical linear regression analysis showed that the mental health outcomes of the medical students were positively predicted by higher perceived social support scores ( β =-11.40), institutional satisfaction ( β =-4.85 ), and lower help seeking stigma scores ( β =9.31) ( P <0.05). The structural equation modeling showed that the status of both perceived social support and self help seeking stigma had significant impacts on depression severity ( β =-0.32, -0.53) and interpersonal relationship sensitivity ( β =-0.31, 0.58) among medical students ( P <0.01).Through expert interviews, collaborations between the school and the tripartite organization (families, universities and society) was of growing importance. Conclusions Perceived social support and self stigma have a significant impact on the mental health status of medical students. The problem of self stigma of medical students should be paid attention to. Therefore, families, universities and society should work together to improve the mental health of medical students.

OBJECTIVE To evaluate the safety of fondaparinux in pregnancy and provide reference for its rational clinical application. METHODS A search was conducted in databases including CNKI， Wanfang， PubMed， Embase， and Elsevier （the search time was from the construction of the database to December 17， 2024） to collect case report literature on fondaparinux use during pregnancy. Patient demographic information， fondaparinux use during pregnancy， concomitant medications， clinical manifestations， and treatment details were extracted for descriptive statistical analysis. RESULTS A total of 17 case reports regarding the use of fondaparinux during pregnancy were collected， involving 42 patients from 11 countries and 47 pregnancy records. Among these， 20 cases involved the use of fondaparinux for the prevention of pregnancy-related venous thromboembolism （VTE）， while 27 cases were fondaparinux treatment due to related conditions. A total of 29 occurrences of the patients were treated with fondaparinux due to a （family） history of VTE. Nine occurrences of complicated pregnancies were reported， and 35 patients had records of comorbidities or relevant medical histories. The adverse events that occurred during pregnancy with the use of fondaparinux include postpartum hemorrhage （7 cases） and excessive anticoagulation caused by inappropriate dosage （1 case）. Among the 7 cases of postpartum hemorrhage， 3 cases had a blood loss of no less than 1 000 mL （including 2 cases with uterine atony）， 3 cases had a drug discontinuation time of ≤12 h. CONCLUSIONS Based on the existing literature， the safety of fondaparinux during pregnancy is generally manageable， with the main adverse event being postpartum hemorrhage. The dosage， interval between discontinuation，comorbidities/medical history， and concomitant medications of fondaparinux may be the main causes of its adverse events.

Objective To compare the colonoscopy results of patients with positive fecal SDC2,ADHFE1,and PPP2R5C gene methylation tests to those with positive fecal occult blood tests,and analyze the effectiveness of colorectal cancer(CRC)screening.This study aims to provide a scientific basis for risk assessment in CRC screening.Methods From December 2023 to May 2024,9 284 combined test kits for SDC2,ADHFE1,and PPP2R5C gene methylation were distributed to high-risk individuals aged 40～80 years.Among them,841 patients(9.1％)tested positive.These patients were encouraged via telephone to undergo colonoscopy,with colonoscopy combined with pathological diagnosis as the gold standard,a total of 495 positive patients completed electronic colonoscopy.Among them,the 251 patients who tested positive for fecal SDC2,ADHFE1,and PPP2R5C gene methylation and completed electronic colonoscopy were the observation group;concurrently,244 patients who tested positive for fecal occult blood tests and underwent electronic colonoscopy were selected as the control group.Compare two groups of patients with polyp,number,shape,pathological changes and pathological types.Results There was no statistically significant difference in number and lesion location of polyps between the two groups of patients(P>0.05).The proportion of Yamada type Ⅰ in the observation group was lower than that in the control group,while the proportion of Yamada type Ⅱ was higher than that in the control group.The difference was statistically significant(P<0.05).In the observation group,1 case(0.4％)of CRC,62 cases(24.7％)of advanced adenomas,78 cases(31.1％)of non-advanced adenomas,20 cases(8.0％)of hyperplastic polyps,and 90 cases(35.9％)with no dysplastic lesions were identified.In the control group,6 cases(2.5％)of CRC,38 cases(15.6％)of advanced adenomas,53 cases(21.7％)of non-advanced adenomas,19 cases(7.8％)of hyperplastic polyps,and 128 cases(52.5％)with no dysplastic lesions were identified.The proportions of non-advanced adenomas and advanced adenomas were lower in the control group than those in the observation group,while the no dysplastic lesions rate was higher in the control group,the differences were statistically significant(P<0.05).Conclusion The detection rate of colorectal non-advanced adenomas and advanced adenomas is higher with fecal SDC2,ADHFE1,and PPP2R5C gene methylation testing compared to the fecal occult blood test.

Anticoagulants are widely used in the prevention and treatment of thromboembolism.Existing anticoagulants share the common feature of antagonizing or blocking critical steps in the coagulation cascade,which also increases the risk of bleeding.Studies have indicated that factor Ⅺ inhibitors represent a potential therapeutic option for balancing thrombosis and bleeding risks.In recent years,various factor Ⅺ inhibitors,including antisense oligonucleotides(ASOs),monoclonal antibodies,synthetic small molecules,natural peptides,and aptamers,have been extensively researched as potentially exploitable anticoagu-lants.Research findings also suggest that factor Ⅺ inhibitors can reduce bleeding risks while ensuring anticoagulant efficacy,ex-hibiting potential for thrombosis prevention and treatment in patient populations such as those with end-stage renal disease,non-cardioembolic ischemic stroke,and acute coronary syndrome.This article reviewed the mechanisms of action,drug classes,pharma-cological characteristics,and clinical research progress of factor Ⅺ inhibitors,aiming to provide insights into the development of new anticoagulants and clinical anticoagulant therapies.

Anticoagulants are widely used in the prevention and treatment of thromboembolism.Existing anticoagulants share the common feature of antagonizing or blocking critical steps in the coagulation cascade,which also increases the risk of bleeding.Studies have indicated that factor Ⅺ inhibitors represent a potential therapeutic option for balancing thrombosis and bleeding risks.In recent years,various factor Ⅺ inhibitors,including antisense oligonucleotides(ASOs),monoclonal antibodies,synthetic small molecules,natural peptides,and aptamers,have been extensively researched as potentially exploitable anticoagu-lants.Research findings also suggest that factor Ⅺ inhibitors can reduce bleeding risks while ensuring anticoagulant efficacy,ex-hibiting potential for thrombosis prevention and treatment in patient populations such as those with end-stage renal disease,non-cardioembolic ischemic stroke,and acute coronary syndrome.This article reviewed the mechanisms of action,drug classes,pharma-cological characteristics,and clinical research progress of factor Ⅺ inhibitors,aiming to provide insights into the development of new anticoagulants and clinical anticoagulant therapies.

Objective To deeply analyze the problems of public hospitals in medical service satisfaction,construct a more applicable and explanatory service satisfaction evaluation model,and provide reference for the improvement path of patients'medical service satisfaction.Methods Based on the ESCI model,this paper puts forward a research hypothesis,compiles the"Medical Service Satisfaction Evaluation Scale of Public Hospitals in S City",selects S public hospitals as the research object,and evaluates medical service satisfaction from the perspective of patients.Results At present,the main problems affecting the improvement of patients'satisfaction with medical service management in public hospitals in S city are as follows:it is urgent to improve the diagnosis and treatment technology in terms of hardware quality and optimize the environmental hygiene of public hos-pitals,and it is an urgent task to shorten the waiting time for medical treatment in software quality.The score of medical service satisfaction evaluation of S public hospitals was 3.76,and the satisfaction of patients in S public hospitals with their medical serv-ices was at a moderately low level.Conclusion In view of the above problems,it is recommended to strengthen the construction of key specialties,strengthen the construction of talent team,optimize the medical process,open digital linkage services,and strengthen service management,so as to promote the improvement of patients'satisfaction with medical services.

Patients with gastric cancer are at high risk for venous thromboembolism(VTE)and bleeding,and patients who develop VTE are often associated with poor outcomes,making it clinically challenging to identify and manage the risk of thrombosis in patients with gastric cancer.Risk factors for VTE in gastric cancer patients include age,obesity,surgery,chemotherapy,etc.It is essential to identify high-risk patients and adopt aggressive prevention strategies.The main strategy to prevent and treat VTE is the use of anticoagulant drugs.This article discusses guidelines and recent studies for the prevention and treatment of VTE in patients with gastric cancer to help clinicians make individualized decisions for their patients and maximize clinical outcomes for their patients.

Patients with primary membranous nephropathy(PMN)tend to develop thrombosis,especially in the early phase of the disease.The pathogenesis of thrombosis is multifactorial,with hypoalbuminemia being widely regarded as an inde-pendent risk factor.Other factors include proteinuria,M-type phospholipase A2 receptor antibody,and D-dimer.Although prophy-lactic anticoagulation therapy is frequently used in clinical practice to prevent thrombosis in PMN patients,there are still many un-resolved issues regarding the optimal prevention of thrombosis in this condition.The timing of prophylactic anticoagulation,the threshold of serum albumin level,and the choice of treatment regimen are still lacking consensus.This article reviewed the relevant literature on these topics,aiming to establish a standard for thrombosis prevention and treatment for this population in the future and provide guidance for clinical practice.

In order to strengthen the supervision of the use of drugs in hospitals，the Sichuan Academy of Medical Sciences· Sichuan Provincial People’s Hospital took the lead in compiling the Principles for the Rational Use of National Key Monitoring Drugs （the Second Batch） with a number of experts from multiple medical units in accordance with the Second Batch of National Key Monitoring Rational Drug Use List （hereinafter referred to as “the List”） issued by the National Health Commission. According to the method of the WHO Guidelines Development Manual， the writing team used the Delphi method to unify expert opinions by reading and summarizing the domestic and foreign literature evidence of related drugs， and applied the evaluation， formulation and evaluation method of recommendation grading （GRADE） to evaluate the quality of evidence formed， focusing on more than 30 drugs in the List about the evaluation of off-label indications of drugs， key points of rational drug use and key points of pharmaceutical monitoring. It aims to promote the scientific standardization and effective management of clinical medication， further improve the quality of medical services， reduce the risk of adverse drug reactions and drug abuse， promote rational drug use， and improve public health.