Intestinal aging is central to systemic aging, characterized by a progressive decline in intestinal structure and function. The core mechanisms involve dysregulation of epithelial cell renewal and gut microbiota dysbiosis. In addition to previous results in model organisms like Drosophila melanogaster, recent studies have shown that in mammalian models, aging causes increased intestinal permeability and intestinal-derived systemic inflammation, thereby affecting longevity. Therefore, anti-intestinal aging can be an important strategy for reducing frailty and promoting longevity. There are three key gaps remaining in the study of intestinal aging: (1) overemphasis on aging-related diseases rather than the primary aging mechanisms; (2) lack of specific drugs or treatments to prevent or treat intestinal aging; (3) limited aging-specific dysbiosis research. In this review, the basic structures and renewal mechanisms of intestinal epithelium, and mechanisms and potential therapies for intestinal aging are discussed to advance understanding of the causes, consequences, and treatments of age-related intestinal dysfunction.

Objective To investigate the epidemiology of idiopathic scoliosis in China based on a representative sample of primary school children from Beitang district, Wuxi, Jiangsu, China. Methods All 11,024 primary school pupils from 11 schools aged 6-13 years were enrolled. A scoliometer was applied to initially screen for idiopathic scoliosis. Those angle of trunk rotation above 4° was invited to a clinical visit. Definite diagnosis was made based on a Cobb angle of 10° or above by X-ray. Inverse probability weights were used to adjust for non-attendance of the physical examination. Results 282 children (2.6%) were screened positive and 128 of them accepted clinical program. 11 children were diagnosed as idiopathic scoliosis, suggesting a prevalence rate of around 0.22% in primary school children in Wuxi. Adjusted for non-response estimated prevalence was slightly lower at 0.21%. Prevalence was higher in girls than in boys. The highest prevalence was found in girls aged 12-13 years. None confirmed case was found in children younger than 10 years old. Conclusion A relatively low overall prevalence of idiopathic scoliosis was found in primary school children of Beitang district, Wuxi. It is suggested to focus on children aged 10-13 years, while the screening for the 6-9 years olds could be slightly postponed.

Objective To investigate the rehabilitation needs of people with disabilities in Wuxi. MethodsRehabilitation demands of 74387 people with disabilities in Wuxi were surveyed.ResultsThere were significant differences in rehabilitation needs of the disabled from age and different types of disabilities.ConclusionDisability community-based rehabilitation system should be improved according to different demands of disability.

AIM:To investigate the effects of grasp seed procyanidins(GSP) on homocysteine-induced proliferation and migration in vascular smooth muscle cells(VSMC) and related molecular mechanisms.METHODS: Cell count and -TdR assay were used for detecting cell proliferation and DNA synthesis,ELISA assay was used for detecting inflammatory response,DCFH-DA assay for examining the levels of reactive oxygen species(ROS),Western blotting for detecting protein expression.RESULTS: Homocysteine(0.1-1 mmol/L) increased VSMC proliferation and migration,and the levels of ROS were in a dose-dependent manner.The results of Western blotting showed that homocysteine significantly increased the expression of MCP-1,IL-6 and TNF-?.However,Compared with control group,in GSP(5-20 g/L) group,the increased VSMC proliferation,migration and the production of ROS and the expression of MCP-1,IL-6 and TNF-? mediated by homocysteine were markedly suppressed.EMSA showed that in GSP treatment group,the NF-?B activation was also almost completely inhibited.CONCLUSION: GSP inhibits homocysteine-induced VSMC proliferation,migration and inflammatory response through interfering with ROS dependent on NF-?B signal pathway.