【摘要】 目的 探討內江市企事業及機關單位從業人員20~60歲人群中超重、肥胖者及其相關因素。 方法 2009年6月－2010年9月采用整體隨機分層方法，對內江市企事業及機關單位從業人員共5 832例進行調查。用問卷了解吸煙、飲酒、運動、家族史、文化程度，并測定身高、體重、空腹血糖、甘油三酯、膽固醇等。采用SPSS 17.0軟件進行統計學分析，以雙側Plt;0.05為有統計學的意義。與肥胖有關的危險因素采用多因素logistic回歸分析。 結果 超重及肥胖者比例為27.16%，其中超重者1 377例，占23.6%，肥胖者207例，占3.55%；肥胖較超重者空腹血糖、甘油三酯、血壓更高；多因素logistic回歸分析提示:超重及肥胖與年齡、吸煙、性別、運動、家族史、文化程度有關，與飲酒無關。 結論 內江市企事業及機關單位從業人員20~60歲人群中超重、肥胖者比例為27.16%；肥胖較超重者更易發生高血糖、高血壓、高血脂、高尿酸血癥；超重及肥胖與年齡、吸煙、性別、運動、家族史、文化程度均有關。【Abstract】 Objective To investigate the prevalence and the risk factors of overweight and obesity among employees aged 20 to 60 years old in enterprises and government institutions in Neijiang city. Methods From June 2009 to September 2010, 5 832 employees in government departments, enterprises and institutions in Neijiang were surveyed using stratified random sampling method. Items like physical exercise, smoking, drinking, educational level, and family history were collected through face-to-face questionnaire, and their height, weight, fasting plasma glucose, triglyceride, cholesterol were measured. SPSS 17.0 was used for statistical analysis, and the relationship of each index was analyzed by Pearson correlative analysis. Bilateral Plt;0.05 was considered to be statistically significant. Risk factors associated with obesity were analyzed by Logistic regression analysis. Results The overweight and obesity morbidity rate was 27.16%, including 1377 cases of overweight (23.6%) and 207 cases of obesity (3.55%). Fasting plasma glucose, triglyceride, and blood pressure of obesity patients were higher than those of the overweight patients. Correlation analysis showed that overweight and obesity were positively correlated with fasting plasma glucose (r=0.116,Plt;0.01), triglyceride(r=0.319,Plt;0.01), uric acid (r=0.373,Plt;0.01), diastolic blood pressure (r=0.198,Plt;0.01), and systolic blood pressure (r=0.212,Plt;0.01), but not correlated with cholesterol. Logistic regression multivariate analysis showed that overweight and obesity were related with age, smoking, sex, sports, the educational level and family history, but not related with drinking. Conclusions The prevalence of overweight and obesity among employees aged 20 to 60 years old in enterprises and government institutions in Neijiang city is 27.16%. People with overweight and obesity are more susceptible to hyperglycemia, hypertension, hyperlipemia, and hyperuricemia. Overweight and obesity were closely related with age, smoking, gender, sports activities, family history, and educational level.
Artificial intelligence (AI) technologies, encompassing virtual reality, augmented reality and adaptive learning platforms, offer immersive and personalised opportunities for undergraduate orthopaedic education. However, their adoption is hindered by limited faculty acceptance, data privacy and ethical risks, and disparities in educational resources. This study examines the opportunities and challenges of AI integration in orthopaedic teaching and proposes strategies including systematic AI training, strengthened data protection, resource sharing, and blended learning models. These measures aim to enhance the quality of learning for students and educators while fostering innovation and progress in medical education.
Objective To review the research progress on lactylation modification in the pathogenesis of osteoarthritis (OA). Methods Relevant studies published in recent years on lactate metabolism and lactylation modification in OA were retrieved and analyzed, summarizing the molecular mechanisms of lactylation and its regulatory roles in different cells and pathological processes. Results Lactate, as the major metabolic product of glycolysis, not only participates in energy metabolism but also plays a crucial role in OA progression through lactylation modification. Lactate-driven histone and non-histone lactylation regulate gene transcription and cellular functions, contributing to chondrocyte metabolic reprogramming, extracellular matrix (ECM) synthesis and degradation, cell proliferation and apoptosis, as well as ferroptosis. In fibroblast-like synoviocytes, lactylation modification promotes cellular senescence and the release of inflammatory factors; in immune cells, lactylation regulates inflammatory responses by influencing macrophage polarization and intercellular communication. Overall, lactylation modification exhibits a dual effect in OA: it aggravates ECM degradation and inflammation on the one hand, but under specific microenvironments, it also promotes repair and regeneration. However, the site-specificity, cell-type heterogeneity, and cross-talk of lactylation with other epigenetic modifications remain to be further clarified. Conclusion Lactylation modification provides a novel perspective for understanding the metabolic and epigenetic mechanisms of OA and may serve as a potential biomarker and therapeutic target. Future studies combining multi-omics approaches to map the global lactylation landscape, together with small-molecule inhibitors, epigenetic editing tools, and regenerative medicine strategies, may enable precise regulation of lactylation, offering new strategies to delay or even reverse OA progression.
