Objective To investigate the causes, clinical features, classifications and liver function change of drug-induced liver damage (DILD) in the elderly. Methods One hundred and sixty seven inpatients with acute drug-induced liver injury in our hospital in the past ten years (January 2000 to December 2009) were retrospectively investigated,and the diagnosis and classification methods of acute DILD were based on international consensus meeting (international criteria). Results Among 167 DILI cases, there were 53 cases (31.7%) in the older group and 114 cases (68.3%) in middle-youth age group. Fatigue and jaundice were the more common symptoms, accounting for 50.3% and 46.7%, respectively. In 167 cases, no obvious symptoms and signs were shown in 25 cases. There were no significance differences in clinical manifestation between two groups. Many drugs could induce liver injury. The most common drugs inducing DILD were Chinese traditional and herbal drugs, accounting for 47.9%. Drugs used in heart diseases and inducing liver injury were more common in the older group. In this study, 40 (75.5%), 5 (9.4%) and 8 (15.1%) cases were designated as hepatocellular, cholestetic and mixed DILD in the older group, and 91 (78.9%), 8 (7.4%) and 15 (13.7%) in middle-youth age group, respectively. There were no significance differences between two groups in classifications. Conclusions Many drugs could cause liver injury. The symptoms of acute DILD are nonspecific. Drugs used in heart diseases and inducing liver injury are more common in older patients.

Objective:To examine the social isolation(SI)status among the elderly population in China and its effect on cardiovascular and cerebrovascular diseases(CCVD).Methods:Utilizing data from the Fourth China Urban and Rural Elderly Living Conditions Sample Survey, the social isolation(SI)score was determined based on four components: marital status, living arrangements, frequency of contact with relatives and friends, and social participation.The χ2 test was employed to examine variations among socially isolated individuals, regional disparities within each province, and subgroups within each covariate.Additionally, Logistic regression was conducted to evaluate the impact of SI and its associated factors on CCVD. Results:The final analysis included 218 329 elderly individuals, revealing that the incidence and number of SI in Shandong Province are the highest in China at 18.95%(3 360 out of 17 735).The incidence of SI in the Eastern coastal provinces is notably higher than in the Western region.Factors contributing to a higher prevalence of SI include living in rural areas, being female, older age, belonging to ethnic minorities, having low educational attainment, facing economic disadvantages, smoking, drinking alcohol, lack of exercise, loneliness, poor sleep quality, and dissatisfaction with housing conditions.The study found that SI increased the risk of developing cardiovascular disease even after adjusting for negative emotional experiences or poor lifestyle choices( OR=1.190, 95% CI: 1.016-1.296, P=0.016, OR=1.208, 95% CI: 1.131-1.291, P<0.001), and the risk further increased when both factors were simultaneously adjusted for( OR=1.237, 95% CI: 1.160-1.319, P<0.001). Conclusions:Combining SI with poor lifestyle and negative emotions significantly raises the risk of cardiovascular disease, highlighting the importance of addressing these factors in the elderly population.