Accurate prediction of drug-target interactions (DTIs) plays a pivotal role in drug discovery, facilitating optimization of lead compounds, drug repurposing and elucidation of drug side effects. However, traditional DTI prediction methods are often limited by incomplete biological data and insufficient representation of protein features. In this study, we proposed KG-CNNDTI, a novel knowledge graph-enhanced framework for DTI prediction, which integrates heterogeneous biological information to improve model generalizability and predictive performance. The proposed model utilized protein embeddings derived from a biomedical knowledge graph via the Node2Vec algorithm, which were further enriched with contextualized sequence representations obtained from ProteinBERT. For compound representation, multiple molecular fingerprint schemes alongside the Uni-Mol pre-trained model were evaluated. The fused representations served as inputs to both classical machine learning models and a convolutional neural network-based predictor. Experimental evaluations across benchmark datasets demonstrated that KG-CNNDTI achieved superior performance compared to state-of-the-art methods, particularly in terms of Precision, Recall, F1-Score and area under the precision-recall curve (AUPR). Ablation analysis highlighted the substantial contribution of knowledge graph-derived features. Moreover, KG-CNNDTI was employed for virtual screening of natural products against Alzheimer's disease, resulting in 40 candidate compounds. 5 were supported by literature evidence, among which 3 were further validated in vitro assays.
Alzheimer Disease/drug therapy* ; Biological Products/therapeutic use* ; Humans ; Neural Networks, Computer ; Machine Learning ; Drug Discovery/methods* ; Algorithms ; Drug Evaluation, Preclinical/methods*

Objective:To examines the social health status and influencing factors affecting the elderly population in urban communities of Beijing, based on the "the Standard for Healthy Chinese Older Adults(2022)" .Methods:Using the stratified sampling method, a total of 159 elderly individuals aged 60 and above from the Lanyuan community in the Malianwa street jurisdiction of Haidian district, Beijing, were selected as research subjects.The average age of the participants was(70.7±7.9)years, comprising 74 males and 85 females.Household face-to-face interviews were conducted, utilizing self-compiled questionnaires to perform a comprehensive assessment and analysis of the social health status of the elderly.Results:In the study involving community-based elderly participants, 32.1%(51 cases)were classified as healthy.The analysis revealed statistically significant differences in the social health status among various age groups of the elderly( χ2=11.802, P=0.019), with a notable downward trend in social health status as age increases( χ2=9.626, P=0.002).Furthermore, the results of multivariate Logistic regression analysis indicated that educational level( OR=2.119, 95% CI: 1.044-4.031, P=0.038)and chronic disease status( OR=5.007, 95% CI: 1.083-23.140, P=0.039)are significant influencing factors on the social health status of older adults. Conclusions:The social health status of the elderly in urban communities in Beijing is generally low and deteriorates progressively with age.Both educational attainment and chronic disease prevalence significantly influence the social health of this demographic.For elderly individuals with lower educational levels and poor chronic disease management, it is essential to conduct social health assessments and implement targeted intervention strategies to enhance their overall social health.

Objective:To evaluate and analyze the health status of the elderly from physical health, mental health and social health, so as to understand the health status and health service needs of rural elderly.Methods:A total of 263 elderly people aged 60 years and over(mean aged 70.9±7.9 years, 113 males and 150 females, 125 aged 60-69 years, 98 aged 70-79 years and 40 aged 80 years and over)in Nanwangkong Village, Shaozhuang Town, Qingzhou City, Weifang City, Shandong Province were selected by cluster sampling method.The physical, mental, social and overall health status of the elderly were comprehensively evaluated and analyzed by self-designed questionnaire.Results:The overall health rate was 30%(79 cases), and the physical health, mental health and social health rates were 73.8%(194 cases), 84.0%(221 cases)and 34.6%(91 cases), respectively, in rural elderly in this area.The physical health was better in males than in females in 80~ years old groups( χ2=5.736, P<0.05). The overall health was better in males than in females in the total age group and the 60~69 years old groups( χ2=7.468 and 11.116, both P<0.01). The proportions of unhealthy, basic healthy and healthy people in the overall and the dimensions of physical health, mental health and social health had significant differences in the 60~69, 70~79 and 80~ years old groups( χ2=40.590, 29.342, 18.503 and 27.615, all P<0.01), and the Chi-square test for trend showed that there was a statistically significant downward trend of overall health grade distribution with age( χ2=21.994, 12.831, 16.570 and 22.595, both P<0.01). Conclusions:In this study, 30.0% of the rural elderly were considered healthy, 48.3% were basically healthy, and 21.7% were unhealthy.The health status of the elderly gradually deteriorates with age.The government should strengthen the multidimensional health assessment of the rural elderly and provide the comprehensive health guidance services and targeted interventions for the elderly in terms of disease control, psychological counseling and social participation.

Objective:To evaluate and analyze the health status of elderly people from the physical, psychological and social aspects using the Health Criteria for Older Adults in China(2022), and to understand the impact of social demographic characteristics on the overall health status of the elderly.Methods:159 elderly people aged 60 years and over in the Lanyuan community of Malianwa Subdistrict, Haidian District, Beijing were selected by the stratified sampling method, with a mean age of(70.7±7.9)years, including 74 men and 85 women.The physical, psychological, social and overall health status of the elderly were comprehensively evaluated and analyzed from data collected through a self-designed questionnaire with face-to-face interviews at respondents' homes.Results:The percentage of participants in this community who were considered overall healthy was 30.2%(n=48). The proportions of those meeting the criteria for physical, mental and social health were 79.2%(n=126), 90.6%(n=144)and 32.1%(n=51), respectively.For participants of 3 age groups(60-69, n=89; 70-79, n=44; ≥80, n=26), differences in percentages of people who were considered not healthy, largely healthy and healthy, measured using the overall, physical, mental and social health criteria, were statistically significant( χ2=24.683, 57.096, 12.801, 11.802, all P<0.05), and results of the χ2test for trend showed that the frequency distribution of people with overall, physical, mental and social health decreased with age( χ2=16.878, 31.600, 9.626, 9.626, all P<0.05). Multivariate Logistic regression analysis showed that education level( OR=2.142, 95% CI: 1.053-4.538, P=0.035)was an influencing factor for overall health status of the elderly. Conclusions:The overall health status of community-dwelling elderly people in Beijing is relatively poor and deteriorates with age.Education level is a factor affecting their health status.Health assessment for the elderly should be strongly advocated, and targeted health education should be provided for the elderly in disease prevention and mental health care.

Objective:To explore the value of panoramic teaching in clinical practice teaching of department of respiratory medicine.Methods:A total of 35 clinical interns who had a 3-week rotation in the department of respiratory medicine from October 2019 to June 2020 were selected, and they were divided into a control group ( n=17) and a study group ( n=18) according to the order of admission. The control group used traditional teaching, and the research group used panoramic teaching. After the teaching, the teaching effect was evaluated through theoretical knowledge assessment, practical assessment and questionnaire survey. SPSS 19.0 was used for t test. Results:There was no statistically significant difference between the two groups of interns in theoretical assessment [(89.62±4.05) points vs. (90.84±4.12) points, t=-0.891, P=0.379]. The results of practice assessment (case analysis, physical examination of the department, medical history inquiry and skills manipulation) of the study group were significantly higher than those of the control group ( P<0.05). The interns in study group were better than those in control group in such aspects as learning interest, self-learning ability, self-study ability, doctor-patient communication language expression ability, literature review ability, clinical thinking ability, comprehensive analysis ability, knowledge development ability, system diagnosis ability, teamwork ability and teaching satisfaction ( P<0.05). Conclusion:Panoramic teaching can effectively improve the ability of interns to master the clinical diagnosis and treatment of respiratory medicine, improve the teaching effect, and improve the learning ability and clinical competence of interns in the future.

Objective:To develop a set of indexes for the assessment of healthy older adults in China, in order to provide a reference and basis for developing aging-related national policies, standardizing and guiding health management services for the elderly.Methods:A set of indexes for the assessment of healthy older adults in China was established based on a literature review, expert discussions, 2 rounds of Delphi surveys, expert consultations and a cross-sectional study assessing the indexes.Results:The positive coefficients for 2 rounds of expert consultations were 86.25%(69/80)and 94.52%(69/73), respectively.All surveyed experts(100%)specialized in the area of geriatric health and came from 22 provincial-level administrative regions in China.In the two rounds of consultations, the familiarity degree coefficients were 0.706-0.915 and 0.835-0.922, and the authority coefficients were 0.762-0.921 and 0.863-0.932, respectively.The mean importance scores of each index were 6.10-9.74 scores and 7.87-9.56 scores, with perfect score rates of 43%-99% and 75%-99%, respectively.The mean coefficients of variation(CV)were 0.19±0.05(0.07-0.34)and 0.16±0.03(0.10-0.21), respectively.The set of indexes for the assessment of healthy older Chinese adults covered multi-dimensions including physical health, mental health and social health, with 3 primary indexes, 11 secondary indexes and 17 tertiary indexes.Conclusions:The construction process of the set of indexes for the assessment of healthy Chinese adults was scientific and rigorous, and the panelists had a high level of agreement, strong authority and active participation.The set of indexes has comprehensive coverage and an inclusive framework, and indexes at each level are scientific and feasible.It can serve as a reference for the comprehensive assessment of health status of the elderly and for aging-related government policy formulation in the future.

Objective:To evaluate and analyze elderly health on the physical, psychological and social dimensions, so as to understand the health status and care needs of community-dwelling elderly residents.Methods:A cross-sectional study was carried out in the Meiyuan community, Malianwa Street, Haidian District of Beijing during July 22 to August 26, 2021.A total of 404 people aged 60 and above(70.6±8.6 years old)including 169 men and 235 women were enrolled through cluster sampling.All information about community-dwelling elderly residents was collected with face-to-face interviews and a standardized structured questionnaire for the evaluation and analysis of their physical, mental, social and overall health.Results:The rate of overall healthy residents was 21.3%(86), and the rates of physically, mentally and socially healthy residents were 66.8%(270), 86.6%(350) and 24.3%(98), respectively, in this community.There was a sex difference in social health in the whole group( χ2=9.008, P=0.011)and a higher proportion of men than women were considered generally healthy( χ2=8.963, P=0.003). People in the three age groups(224 in the 60-69 group, 109 in the 70-79 group and 71 in the ≥80 group)showed statistically significant differences in overall, physical, mental and social health( χ2=18.473, 61.186, 43.026 and 18.310, P<0.001), which declined with increasing age( χ2=13.172, 23.515, 26.806 and 10.068, P<0.001 or 0.01). Conclusions:s The overall healthy rate is not high among community-dwelling elderly residents in Beijing.The health status of the elderly gradually deteriorates with age.Health assessment for the elderly should be emphasized and targeted health education and prevention should be provided to promote disease prevention and mental health.

Objective:To investigate the expression of intestinal alkaline phosphatase (IAP) in intestinal mucosa with bile deficiency and the effect of bile on the expression of IAP in intestinal epithelial Caco-2 cell model.Methods:Thirty healthy male SD rats were randomly divided into control group (Ctrl, n=10), external drainage group (ED, n=10) and obstructive jaundice group (OJ, n=10). Ileum specimens were collected on the 7th day after modeling. Western blot and immunohistochemical staining were used to determine the expression of IAP in rat intestinal mucosa. Different concentrations of human bile were used to treat on Caco-2 cells, and Western blot was used to detect the changes in IAP expression in Caco-2 cells. Results:Rat models were successfully established. The expression level of IAP in the intestinal mucosa of ED group [(9.19±1.67)%] was significantly lower than that of the Ctrl group [(15.09±0.61)%, P<0.05]; the expression of IAP in the intestinal mucosa of OJ group [(6.86±1.07)%] was significantly lower than that of the Ctrl group ( P<0.05). Through in vitro cell experiments, expression of IAP in Caco-2 cells was increased in a time and dose-dependent manner when treated with human bile. Conclusions:Bile deficiency in the intestine can cause inhibition of IAP in the intestinal mucosa. Bile can promote the expression of IAP in intestinal mucosal epithelial cells.

Objective:To analyze the process of Chinese expert consensus on the core information on prevention of sarcopenia in the elderly(2021)in China, so as to realize the early diagnosis and treatment of sarcopenia and to improve the quality of life in the elderly.Methods:The index system framework was established by literature review and expert questionnaire discussion, and Delphi expert consultation method was adopted to construct the index system.Results:A total of 109 experts(128 person-times)in Geriatrics from various fields participated in Delphi expert consultation.Positive coefficient for four rounds of expert consultation were 88.9%, 100.0%, 100.0% and 100.0% respectively, with expert authority factors being concentrated on 0.78~0.90.Through 4 rounds of Delphi expert surveys, the core information index system for sarcopenia prevention in the elderly has been definitive: Chinese Expert Consensus(2021)consists of nine indicators including "enhancing public scientific awareness of myosis, and so on."Conclusions:The core information index system for sarcopenia prevention in the elderly has high levels of overall convergence, comprehensive coverage, strong authority, stability, comprehensiveness and popularity.

Objective To investigate the inhibitory effect of cordycepin on immune function injury in lung cancer rats after radiation therapy through JAK2/STAT3 signaling pathway. Methods Fifty rats were used to establish tumor-bearing model and other 10 rats were taken as normal group. After successful modeling, the rats were randomly divided into model group, radiotherapy group, cordycepin group, agonist group and agonist+cordycepin group (10 rats in each group). We compared tumor weight, tumor volume, tumor inhibition rate, IL-6, TNF-α, spleen index and thymus index, the number of T lymphocyte subsets, JAK2, p-JAK2, STAT3 and p-STAT3 protein expression levels among all groups. Results Compared with normal group, IL-6, TNF-α, CD8+, p-JAK2 and p-STAT3 in model group were increased, while spleen index, thymus index, CD4+ and CD4+/CD8+ were decreased (P < 0.05). Compared with model group, tumor weight, tumor volume, spleen index, thymus index, CD4+ and CD4+/CD8+ were decreased in radiotherapy group, while IL-6, TNF-α, CD8+, p-JAK2 and p-STAT3 were increased (P < 0.05). Compared with radiotherapy group, tumor weight, tumor volume, IL-6, TNF-α, CD8+, p-JAK2 and p-STAT3 were decreased in cordycepin group, while tumor inhibition rate, spleen index thymus index, CD4+ and CD4+/CD8+ were increased; tumor weight, tumor volume, IL-6, TNF-α, CD8+, p-JAK2 and p-STAT3 protein expression were increased in agonist group, while tumor inhibition rate, spleen index, thymus index, CD4+ and CD4+/CD8+ were decreased (P < 0.05). Compared with agonist+cordycepin group, tumor weight, tumor volume, IL-6, TNF-α, CD8+, p-JAK2 and p-STAT3 were decreased in cordycepin group, while tumor inhibition rate, spleen index, thymus index, CD4+ and CD4+/CD8+ were increased; tumor weight, tumor volume, IL-6, TNF-α, CD8+, p-JAK2 and p-STAT3 were increased in agonist group, while tumor inhibition rate, spleen index, thymus index, CD4+ and CD4+/CD8+ were decreased (P < 0.05). Conclusion Cordycepin can effectively inhibit the immune function injury in lung cancer rats after radiation therapy, and may play a regulatory role by inhibiting the JAK2/STAT3 signal pathway.