ObjectiveAge-related macular degeneration （AMD） is one of the leading causes of low vision and blindness in people over 50 years old， and dry AMD （dAMD） is one type for which there is currently no clear treatment. On the basis of the diagnosis and clinical characteristics of dAMD in traditional Chinese and Western medicine， this paper evaluated the fitting degrees of existing animal models of dAMD with clinical characteristics according to the evaluation methods of animal models， and put forward suggestions and prospects. MethodsLiterature on animal models of dAMD was searched against database， and the characteristics of the models were assigned according to the diagnosis criteria of diseases and syndromes of traditional Chinese and Western medicine， and the fitting degrees of the models with clinical characteristics were analyzed and evaluated. ResultsAt present， the animal models of dAMD are mainly established targeting complement factors， chemokines， oxidative damage， lipid/glucose metabolism， and natural strains. Most of the models can simulate the major pathological changes of dAMD， showing the fitting degree of 25%-50% with clinical characteristics in Western medicine. However， the evaluation of traditional Chinese medicine （TCM） syndromes， especially the evaluation of secondary syndromes， is missing， and the models present low fitting degrees with the clinical characteristics in TCM. ConclusionExisting animal models of dAMD are mostly established under the guidance of Western diagnostic standards， which reproduce the main disease characteristics of Western medicine and lack observation of TCM syndromes. Future studies can pay attention to the intervention factors and evaluation systems of spleen deficiency Qi deficiency and liver-kidney Yin deficiency syndrome and build the animal model of dAMD with integration of disease and syndrome based on clinical characteristics of traditional Chinese and Western medicine.

ObjectiveAge-related macular degeneration （AMD） is one of the leading causes of low vision and blindness in people over 50 years old， and dry AMD （dAMD） is one type for which there is currently no clear treatment. On the basis of the diagnosis and clinical characteristics of dAMD in traditional Chinese and Western medicine， this paper evaluated the fitting degrees of existing animal models of dAMD with clinical characteristics according to the evaluation methods of animal models， and put forward suggestions and prospects. MethodsLiterature on animal models of dAMD was searched against database， and the characteristics of the models were assigned according to the diagnosis criteria of diseases and syndromes of traditional Chinese and Western medicine， and the fitting degrees of the models with clinical characteristics were analyzed and evaluated. ResultsAt present， the animal models of dAMD are mainly established targeting complement factors， chemokines， oxidative damage， lipid/glucose metabolism， and natural strains. Most of the models can simulate the major pathological changes of dAMD， showing the fitting degree of 25%-50% with clinical characteristics in Western medicine. However， the evaluation of traditional Chinese medicine （TCM） syndromes， especially the evaluation of secondary syndromes， is missing， and the models present low fitting degrees with the clinical characteristics in TCM. ConclusionExisting animal models of dAMD are mostly established under the guidance of Western diagnostic standards， which reproduce the main disease characteristics of Western medicine and lack observation of TCM syndromes. Future studies can pay attention to the intervention factors and evaluation systems of spleen deficiency Qi deficiency and liver-kidney Yin deficiency syndrome and build the animal model of dAMD with integration of disease and syndrome based on clinical characteristics of traditional Chinese and Western medicine.

Diabetes mellitus, characterized by glucose metabolism disorders and marked by insulin deficiency or insulin resistance, has seen a continuous rise in prevalence. In recent years, islet transplantation has matured as a therapeutic approach for diabetes, becoming an important method for glycemic control and the reduction of diabetes-related complications. Donor selection directly influences transplant outcomes, and various research institutions worldwide have proposed multiple scoring systems to optimize donor assessment, such as the University of Alberta scoring system and the North American Islet Donor Score. This article explores the impact of key factors such as donor age, body mass index and ischemia time on islet transplantation. Combining practical experience in pancreatic donor selection from Shanghai Changzheng Hospital, it proposes screening criteria for pancreatic donors suitable for China, aiming to provide new evidence for improving the success rate of islet transplantation.

Objective: To explore the association between types of obesity and 10-year risk of atherosclerotic cardiovascular disease (ASCVD) among hypertensive patients, so as to provide the basis for formulating ASCVD prevention strategies for hypertensive patients. Methods: From January to December 2021, hypertensive patients who were under follow-up management and completed health examinations at three community health service centers in Linping District, Hangzhou City were selected by a cluster sampling method. Basic information, lifestyle, disease history, height, weight, waist circumference (WC), and blood biochemical indicators were collected through health examination data. Based on assessments of body mass index (BMI) and WC, participants were categorized into four types: non-obese, general obesity only, central obesity only, and combined obesity. The Prediction for ASCVD risk in China (China-PAR) was used to assess 10-year ASCVD risk, which was categorized as low, moderate, and high risk. Multivariable logistic regression models were used to analyze the association between different types of obesity and ASCVD risk among hypertensive patients. Results: A total of 10 408 hypertensive patients were included, with a median age of 68.00 (interquartile range, 10.00) years. There were 4 301 (41.32%) males and 6 107 (58.68%) females. The proportions of non-obese, general obesity only, central obesity only, and combined obesity were 34.93% (3 635 individuals), 22.85% (2 378 individuals), 4.32% (450 individuals), and 37.90% (3 945 individuals), respectively. There were 3 389 (33.52%) cases at high risk of ASCVD. Among them, high ASCVD risk was observed in 1 107 (30.45%), 896 (37.68%), 122 (27.11%), and 1 364 (34.58%) patients with non-obese, general obesity only, central obesity only, and combined obesity, respectively. Multivariable logistic regression analysis showed that after adjusting for gender, age, smoking, drinking, physical activity, and diabetes, the risk of high ASCVD in hypertensive patients with general obesity only and combined obesity was 1.383 times (95%CI: 1.235-1.548) and 1.225 times (95%CI: 1.109-1.354) that of non-obese hypertensive patients, respectively. Conclusions General obesity only and combined obesity can increase the 10-year high risk of ASCVD among hypertensive patients. It is necessary to strengthen comprehensive management of body weight and WC among hypertensive patients to reduce the risk of ASCVD.

Objective To compare the mid- and long-term clinical results of mitral valve plasty (MVP) and mitral valve replacement (MVR) in the treatment of functional mitral regurgitation (FMR). Methods Patients with FMR who underwent surgical treatment in the Department of Cardiovascular Surgery of the General Hospital of Northern Theater Command from 2012 to 2021 were collected. The patients who underwent MVP were divided into a MVP group, and those who underwent MVR into a MVR group. The clinical data and mid-term follow-up efficacy of two groups were compared. Results Finally 236 patients were included. There were 100 patients in the MVP group, including 53 males and 47 females, with an average age of (61.80±8.03) years. There were 136 patients in the MVR group, including 72 males and 64 females, with an average age of (61.29±8.97) years. There was no statistical difference in baseline data between the two groups (P＞0.05). There was no statistical difference between the two groups in the extracorporeal circulation time, aortic occlusion time, postoperative hospital and ICU stay, intraoperative blood loss, or hospitalization death (P＞0.05), but the time of mechanical ventilation in the MVP group was significantly shorter than that in the MVR group (P=0.022). The total follow-up rate was 100.0%, the longest follow-up was 10 years, and the average follow-up time was (3.60±2.55) years. There were statistical differences in the left atrial diameter, left ventricular end-diastolic diameter, left ventricular end-systolic diameter and cardiac function between the two groups compared with those before surgery (P<0.05). The postoperative left ventricular ejection fraction in the MVP group was statistically higher than that before surgery (P=0.002), but there was no statistical difference in the MVR group before and after surgery (P=0.658). The left atrial diameter in the MVP group was reduced compared with the MVR group (P=0.026). The recurrence rate of mitral regurgitation in the MVP group was higher than that in the MVR group, and the difference was statistically significant (10.0% vs. 1.5%, P=0.003). There were 14 deaths in the MVP group and 19 in the MVR group. The cumulative survival rate (P=0.605) and cardiovascular events-free survival rate (P=0.875) were not statistically significant between the two groups by Kaplan-Meier survival analysis. Conclusion The safety, and mid- and long-term clinical efficacy of MVP in the treatment of FMR patients are better than MVR, and the left atrial and left ventricular diameters are statistically reduced, and cardiac function is statistically improved. However, the surgeon needs to be well aware of the indications for the MVP procedure to reduce the rate of mitral regurgitation recurrence.

Objective To develop an artificial intelligence (AI)-driven lung cancer database by structuring and standardizing clinical data, enabling advanced data mining for lung cancer research, and providing high-quality data for real-world studies. Methods Building on the extensive clinical data resources of the Department of Thoracic Surgery at Peking Union Medical College Hospital, this study utilized machine learning techniques, particularly natural language processing (NLP), to automatically process unstructured data from electronic medical records, examination reports, and pathology reports, converting them into structured formats. Data governance and automated cleaning methods were employed to ensure data integrity and consistency. Results As of September 2024, the database included comprehensive data from 18 811 patients, encompassing inpatient and outpatient records, examination and pathology reports, physician orders, and follow-up information, creating a well-structured, multi-dimensional dataset with rich variables. The database’s real-time querying and multi-layer filtering functions enabled researchers to efficiently retrieve study data that meet specific criteria, significantly enhancing data processing speed and advancing research progress. In a real-world application exploring the prognosis of non-small cell lung cancer, the database facilitated the rapid analysis of prognostic factors. Research findings indicated that factors such as tumor staging and comorbidities had a significant impact on patient survival rates, further demonstrating the database’s value in clinical big data mining. Conclusion The AI-driven lung cancer database enhances data management and analysis efficiency, providing strong support for large-scale clinical research, retrospective studies, and disease management. With the ongoing integration of large language models and multi-modal data, the database’s precision and analytical capabilities are expected to improve further, providing stronger support for big data mining and real-world research of lung cancer.

ObjectiveTo investigate the general situation， dietary factors， and clinical features of patients with recurrent primary common bile duct stones， and to provide a basis for effective prevention of stone recurrence. MethodsA retrospective analysis was performed for 23 730 patients who underwent cholecystectomy due to cholelithiasis in Department of Hepatobiliary， Pancreatic and Spleen Surgery， Inner Mongolia People’s Hospital， from January 2013 to December 2023， and according to the presence or absence of recurrence of primary common bile duct stones after surgery， 334 patients were divided into recurrence group. The recurrence group was further analyzed based on sex in terms of recurrence rate， recurrence cycle， recurrence age， recurrence type， and general， disease， imaging， and dietary factors. The independent-samples t test was used for comparison of continuous data between two groups， the chi-square test was used for comparison of categorical data between two groups. ResultsThere were 334 cases of recurrence of primary bile duct stones after cholecystectomy， with a recurrence rate of 1.41%， and the highest frequency of recurrence cycle was observed in 10 years after surgery， with a significant difference in recurrence cycle between the male and female patients （t=5.238， P<0.001）. There was a significant difference in the recurrence rate of stones after surgery between the patients with simple gallstones and those with gallbladder and common bile duct stones at initial diagnosis （1.23% vs 2.76%， χ²=42.104， P<0.001）. The patients with recurrence aged >60 years accounted for the highest proportion in the whole population and in both male and female populations， and 92% were Han residents； 10% of the patients with recurrence had a family history of gallstones， and as for comorbidities， the patients with hypertension accounted for the highest proportion. Among the patients with recurrence， the patients with smoking or drinking accounted for 76.7% and 10.3%， respectively. As for body weight， 63.8% of the patients with recurrence had a normal body mass index （BMI）， and 23.2% of the patients were overweight； compared with body weight at the time of the first gallbladder surgery， a reduction in body weight was observed in 60.1% of the patients with recurrence， while an increase in body weight was observed in 22.9% of the patients with recurrence. There were significant differences between the male and female patients with recurrence in age composition， ethnicity， the type of place of residence， comorbidities， smoking， drinking， BMI， and the change in body weight （all P<0.001）. As for the type of stone recurrence， the ratio of multiple stones， solitary stones， and muddy stones was 74∶15∶11， and the stone size of <1 cm， 1-2 cm， and >2 cm accounted for about 40.5%， 48.8%， and 10.6%， respectively. As for the surgical procedure， the patients undergoing laparotomy accounted for 66.1%， and those undergoing laparoscopy accounted for 33.9%. The patients with various types of dyslipidemia accounted for a percentage of<30%. There were significant differences between the male and female patients with recurrence in the type of stones at initial onset， the type and size of stones， and surgical procedure （all P<0.001）. Imaging data showed that 4 patients had an abnormal structure of the bile duct， manifesting as long and curve cystic ducts， and 73.1% of the patients had common bile duct dilatation after surgery. The follow-up of dietary factors showed irregular diets in 55.8% of the patients with recurrence. As for the dietary structure， meat and staple food accounted for 43.8% and 37.8%， respectively， which showed a sex difference， with meat in male patients and staple food in female patients； 64.1% of the patients with recurrence had a high-salt and high-oil diet； 59.8% of the patients had changes in diet after the first surgery for stones， among whom 80% were able to have a regular diet， and the patients with a regular diet accounted for 92%. ConclusionThere is a relatively low recurrence rate of primary common bile duct stones in this area， and there is no sex difference. The peak of recurrence is 10 years after surgery， and recurrence of stones is mainly observed in the population aged >60 years. The analysis of dietary and clinical features can help doctors and patients to further understand the characteristics of the recurrence of primary common bile duct stones and provide a basis for subsequent targeted prevention.

Liver cirrhosis is the terminal stage of various chronic liver diseases， with the main clinical manifestation of portal hypertension， which can lead to spontaneous portosystemic shunt （SPSS）. SPSS is very common in clinical practice and is closely associated with the prognosis of patients. This article summarizes the recent studies in the clinical significance of cirrhotic portal hypertension with SPSS， the controversies in studies， and the current status and future prospects and challenges of treatment， in order to provide a reference for the standardized diagnosis and treatment of portal hypertension.

Objective To analyze the epidemiological characteristics of norovirus outbreaks in Haidian District, Beijing, and to provide a reference for epidemic prevention and control. Methods Descriptive epidemiological methods were used to organize and statistically analyze the norovirus outbreak data reported from 2016 to 2022. Results A total of 26 outbreaks of norovirus were reported in Haidian District, with a total of 1595 cases and an attack rate M (Q_R) of 8.23 (16.33)%. There were 24 cases of norovirus type GII (92.31%), 1 case of type GI (3.85%), and 1 case of mixed infection of virus type GI/GII (3.85%). The highest number of reported outbreaks occurred in March and April, with 17 cases, accounting for 65.38%. The highest number of reported cases was in November and December, with 785 cases, accounting for 44.92%. The case age M (Q_R) was 18 (14) years old. The detection rate of positive samples in different age groups had statistical significance（χ²=12.021, P=0.007). The 26 outbreaks were mainly distributed in collective units such as schools, preschool institutions, and enterprises and institutions. There were a total of 11 outbreaks related to foodborne transmission, with 923 cases, accounting for 57.87%. Diarrhea was positively correlated with the age of the cases (r_s=0.572, P<0.001), while vomiting was negatively correlated with the age of the cases (r_s=-0187, P<0.001). The time interval between the onset of acute gastroenteritis symptoms in the first case and the reporting of the epidemic was positively correlated with the duration of the epidemic (r_s=0.586, P=0.002). Conclusion It is necessary to strengthen the prevention and control of norovirus in schools (primary and secondary schools and colleges), strictly implement health monitoring and regular screening for kitchen workers, carry out publicity and education, detect cases as early as possible, report the epidemic in a timely manner, and effectively reduce the scale of the epidemic and prevent its spread.

Objective To investigate the epidemiological survey of pulmonary Aspergillus infection in a district of Hefei City, Anhui Province, from 2019 to 2023. Methods The data of 302 patients who attended and were treated in the respiratory department, thoracic surgery department, oncology department, tuberculosis department and RICU ward of Anhui Chest Hospital from January 2019 to September 2023 were selected, and patients with Aspergillus infections were taken as the observation group, patients with Candida infections were taken as the control group, and bacterial infections were taken as the blank group. The general information of patients, pre-treatment infection, underlying diseases, and use of antifungal drugs were analyzed. Compare the data of observation group and control group, and analyze the risk factors affecting pulmonary Aspergillus infection. Results Pulmonary Aspergillus infection 100 cases, accounting for 33.11%. Pulmonary Candida infection was 80 cases, accounting for 26.49%. The other 122 cases were other lung diseases, accounting for 40.40%. The most common causative agent of pulmonary Aspergillus infection was Aspergillus fumigatus (57.00%), cough, sputum and occasional blood were found in most of the patients (88.00%), most of the lesions were located in the right upper lobe of the lungs (55.00%), and most of the single or multiple cavities were seen on imaging (47.00%). Specimens mostly originated from the deep airways of hospitalized patients and there was a predominance of male patients. Risk factors for pulmonary Aspergillus infection were history of hospital transfer, ICU admission, mechanical ventilation, extracorporeal catheterization (intravenous catheter and urinary catheter), history of surgery within 15 days, history of diabetes mellitus, history of respiratory chronic disease, history of antifungal prophylaxis and abnormal serum indicators. History of hospital transfer (OR=2.951, P=0.008), history of diabetes mellitus (OR=5.073, P=0.018), history of chronic respiratory disease (OR=7.523 , P=0.028), extracorporeal catheterization (OR=3.142, P=0.022), and history of anti-fungal prophylaxis (OR=6.334, P<0.001) were Aspergillus pulmonaryis infection independent risk factors for infection. Conclusion Aspergillus fumigatus and Aspergillus flavus are the main pathogens of pulmonary Aspergillus infections in the region, and a history of nosocomial transfer, extracorporeal tubes, diabetes mellitus, chronic respiratory disease, and antifungal prophylaxis are independent risk factors for pulmonary Aspergillus infections.