目的 探究右美托咪定对腋路臂丛神经阻滞联合肩胛上神经阻滞患者术后反弹性疼痛的影响。方法 收录2024年9月—2025年10月期间我院接受肩关节镜手术治疗的患者，合计收录样本量为150例，将患者随机分为两组（n=150）：常规腋路臂丛神经阻滞联合肩胛上神经阻滞组（N组，n=75）、复合右美托咪定的腋路臂丛神经阻滞联合肩胛上神经阻滞组（D组，n=75）；评价组间反弹性疼痛、术后恢复情况及应急指标差异。结果 术后2 h、6 h、12 h、24 h疼痛视觉模拟量表（VAS）评分D组较N组更低（P＜0.05）。反弹性疼痛发生率D组（5.33%）较N组（20.00%）更低，首次发作时间D组较N组更迟，持续时间D组较N组更短（P＜0.05）。术后补救镇痛次数、阿片类药物用量、非甾体药物使用率D组较N组更低（P＜0.05）。术后首次下床时间和住院时长D组较N组更短，满意度评分D组较N组更高（P＜0.05）。不良反应发生率D组与N组比较，差异无统计学意义（P＞0.05）。术前组间应激反应指标未见明显差异，术后24 h两组均有不同程度的指标变化，但相较N组而言，D组心率、平均动脉压、收缩压、舒张压变化幅度更小（P＜0.05）。结论 右美托咪定用于腋路臂丛神经阻滞联合肩胛上神经阻滞患者，在降低术后疼痛程度及反弹性疼痛发生率、促进术后康复进程有显著价值，对术后不良反应发生率及应激反应的影响较小。

       Objective To explore the effect of dexmedetomidine on postoperative rebound pain in patients with axillary brachial plexus block combined with suprascapular nerve block．Methods From September 2024 to October 2025，150 patients who underwent arthroscopic surgery in our hospital were randomly divided into two groups（n=150）：conventional axillary brachial plexus block combined with suprascapular nerve block group（N group，n=75） and axillary brachial plexus block combined with dexmedetomidine group（D group，n=75）．The differences of rebound pain，postoperative recovery and emergency indicators between groups were evaluated．Results The pain scores at 2 hours，6 hours，12 hours and 24 hours after operation in group D were lower than those in group N（P＜0.05）．The incidence of rebound pain in group D（5.33%） was lower than that in group N（20.00%），the first attack time in group D was later and the duration in group D was shorter than those in group N（P＜0.05）．The times of postoperative salvage analgesia，the dosage of opioids and the utilization rate of non-steroidal drugs in group D were lower than those in group N（P＜0.05）．The time of getting out of bed for the first time and the length of hospitalization in group D were shorter than those in group N，and the satisfaction score in group D was higher than that in group N（P＜0.05）．There was no significant difference in the incidence of adverse reactions between group D and group N（P＞0.05）．There was no significant difference in stress response indexes between groups before operation，and the indexes of both groups changed in different degrees 24 hours after operation，but compared with group N，the changes of heart rate，mean arterial pressure，systolic pressure and diastolic pressure in group D were smaller（P＜0.05）．Conclusions Dexmedetomidine used in axillary brachial plexus block combined with suprascapular nerve block has significant value in reducing postoperative pain and incidence of rebound pain，promoting postoperative rehabilitation process，and has little effect on postoperative adverse reactions and stress response．

       嵌合抗原受体（CAR）T细胞疗法在血液系统恶性肿瘤中疗效显著，但在实体瘤应用中面临肿瘤异质性、免疫抑制微环境和在靶脱瘤毒性等挑战。合成Notch受体（synNotch）作为一种模块化的跨膜信号传导工具，通过将抗原识别与定制化的转录激活程序人工耦联，赋予T细胞整合多重信号、执行布尔逻辑运算的能力。将synNotch与CAR等效应模块结合，可构建“与”、“非”、“或”等逻辑门控回路，可实现对肿瘤微环境的精确识别与响应，极大提升CAR-T细胞的靶向特异性。本文系统综述了synNotch受体的结构演进与逻辑门控设计原理；重点阐明了其在提升细胞疗法靶向特异性、克服实体瘤抗原异质性、动态调控肿瘤微环境以及扩展至其他免疫细胞工程化领域的最新应用进展，并探讨了当前该技术在载体系统构建、受体信噪比优化等方面面临的挑战及未来的发展方向。

   Chimeric antigen receptor（CAR）T-cell therapy has demonstrated remarkable efficacy in hematological malignancies；however，its application in solid tumors is confronted with significant challenges，including tumor heterogeneity，the immunosuppressive microenvironment，and on-target off-tumor toxicity．As a highly modular transmembrane signal transduction tool，the synthetic Notch（synNotch）receptor innovatively links antigen recognition with customized transcriptional activation programs，thereby empowering T cells with the capacity to integrate multiple signals and perform Boolean logic operations．By combining synNotch with effector modules such as CARs，logic-gated circuits，including AND，NOT，and OR gates，can be constructed，which enables precise discrimination of and response to the tumor microenvironment，substantially enhancing the targeting specificity of CAR-T cells．This review systematically summarizes the structural evolution of synNotch receptors and the principles of logic-gated design．Furthermore，it highlights recent advances in their application for enhancing the targeting specificity of cell-based therapies，overcoming solid tumor antigen heterogeneity，dynamically regulating the tumor microenvironment，and extending to the engineering of other immune cell types．Finally，we discuss current challenges，such as the construction of vector systems and the optimization of receptor signal-to-noise ratios，as well as future directions for this technology．

      目的 分析肺结核合并Ⅱ型呼吸衰竭患者经鼻高流量湿化氧疗期间应用多维度强化护理的效果。方法 纳入2022年12月—2025年1月在河北省胸科医院进行经鼻高流量湿化氧疗的肺结核合并Ⅱ型呼吸衰竭患者294例，随机分为强化护理组（147例，多维度强化护理）、对照组（147例，常规护理），测量比较两组患者在护理前后气道重塑指标、肺功能指标、血气分析指标，进行疗效评估。结果 护理后强化护理组气道壁面积、气道壁厚度低于对照组，气道腔面积高于对照组（P＜0.05）；护理后强化护理组第1秒用力呼气容积、用力肺活量高于对照组（P＜0.05）；护理后强化护理组动脉血氧分压高于对照组，动脉血二氧化碳分压低于对照组（P＜0.05）；强化护理组总有效率高于对照组（P＜0.05）。结论 肺结核合并Ⅱ型呼吸衰竭患者经鼻高流量湿化氧疗期间接受多维度强化护理可改善其气道重塑及肺功能，有利于血气分析指标恢复，应用效果显著。

       Objective To analyze the efficacy of multidimensional enhanced nursing during nasal high-flow humidified oxygen therapy in patients with pulmonary tuberculosis and type Ⅱ respiratory failure．Methods A total of 294 patients with pulmonary tuberculosis and type Ⅱ respiratory failure who received nasal high-flow humidified oxygen therapy at Hebei Chest Hospital between December 2022 and January 2025 were enrolled and randomly divided into an enhanced nursing group（147 patients，receiving multidimensional enhanced nursing）and a control group（147 patients，receiving conventional nursing）．Airway remodeling，pulmonary function，and blood gas analysis were measured and compared between the two groups before and after nursing，and the efficacy was evaluated．Results After nursing，the enhanced nursing group had lower airway wall area and airway wall thickness，and higher airway lumen area than the control group（P＜0.05）．The forced expiratory volume in 1 second and forced vital capacity in the enhanced nursing group were higher than those in the control group（P＜0.05）．The blood oxygen partial pressure（PaO₂）in the enhanced nursing group was higher than that in the control group，and the carbon dioxide partial pressure（PaCO₂）was lower than that in the control group（P＜0.05）．The total effective rate in the enhanced nursing group was higher than that in the control group（P＜0.05）．Conclusions Multidimensional enhanced nursing during nasal high-flow humidified oxygen therapy can improve airway remodeling and lung function in patients with pulmonary tuberculosis and type Ⅱ respiratory failure，and is beneficial for the recovery of blood gas analysis indicators．The application effect is significant．

      目的 探讨预后营养指数（PNI）对脓毒症合并心力衰竭患者发生谵妄的预测价值，并评估其在指导护理风险分层中的作用。方法 采用回顾性队列研究，纳入2022年2月—2024年9月广东省第二中医院收治的162例脓毒症合并心力衰竭患者。通过ROC曲线确定PNI预测谵妄的最佳截断值，并以此将患者分为高低PNI组。比较两组基线特征，采用Kaplan-Meier曲线分析谵妄累积发生率和28天院内死亡率，通过Cox比例风险模型评估PNI与谵妄及预后的独立关联，并利用ROC曲线评价其预测性能。最后利用亚组分析技术进一步评估PNI预测价值的普适性。结果 低PNI（≤35.72）是谵妄发生的独立危险因素。竞争风险模型显示，低PNI组10 d谵妄累积发生率达37.8%，高于高PNI组的10.0%。多因素分析表明，PNI每降低一个单位，谵妄风险增加约17.2%。限制性立方样条分析提示PNI与谵妄风险呈线性负相关。ROC曲线分析显示PNI预测谵妄的AUC为0.721，其预测效能优于白蛋白和SOFA评分。亚组分析进一步证实PNI的保护效应在不同临床特征患者中具有一致性。结论 PNI是脓毒症合并心力衰竭患者谵妄风险的独立预测指标，其预测效能优于传统单一指标。基于PNI的风险分层有助于早期识别谵妄高危患者，为实现精准护理干预提供重要依据。

      Objective To explore the predictive value of the prognostic nutritional index（PNI）for delirium in patients with sepsis complicated by heart failure，and to evaluate its role in guiding nursing risk stratification．Methods A retrospective cohort study was conducted，including 162 patients with sepsis and heart failure admitted to Guangdong Provincial Second Hospital of Traditional Chinese Medicine between February 2022 and September 2024．The optimal PNI cut-off value for predicting delirium was determined using ROC curve analysis，and patients were divided into high and low PNI groups accordingly．Baseline characteristics of the two groups were compared．Kaplan-Meier curves were used to analyze the cumulative incidence of delirium and 28-day in-hospital mortality．Cox proportional hazards models were employed to assess the independent association between PNI and delirium as well as prognosis，and ROC curves were used to evaluate its predictive performance．Subgroup analysis was further utilized to assess the generalizability of PNI’s predictive value．Results A low PNI（≤35.72）is an independent risk factor for delirium．The competing risk model showed that the cumulative incidence of delirium in the low PNI group was 37.8% at 10 days，significantly higher than the 10.0% in the high PNI group．Multivariate analysis indicated that for each unit decrease in PNI，the risk of delirium increased by 17.2% approximately．Restricted cubic spline analysis suggested a linear negative correlation between PNI and delirium risk．ROC curve analysis demonstrated that the AUC of PNI for predicting delirium was 0.721，with its predictive performance surpassing that of albumin and SOFA score．Subgroup analysis further confirmed that the protective effect of PNI was consistent across patients with different clinical characteristics．Conclusions PNI is an independent predictor of delirium risk in patients with sepsis and heart failure，with superior predictive performance compared to traditional single indicators．Risk stratification based on PNI aids in the early identification of patients at high risk for delirium，providing an important basis for precise nursing interventions．

       目的 研究数字化口内扫描印模技术（DIOS）对重度牙周炎（SP）患者口腔种植修复效果及龈沟液炎症因子水平的影响并进行分析。方法 选取医院2022年1月—2025年1月收治的100例SP患者进行研究。以密封信封抽签法分为数字化组（n=50）及常规组（n=50）。两组均开展口腔种植修复，常规组采用常规硅橡胶印模技术，数字化组则采用DIOS。对比两组印模制取时间、印模过程中疼痛程度及种植成功率、修复体满意度、龈沟液炎症因子水平、并发症发生情况。结果 数字化组印模制取时间短于常规组，VAS评分低于常规组，而种植成功率高于常规组（均P＜0.05）。数字化组边缘密合度、咬合关系、邻接关系满意度均高于常规组（均P＜0.05）。修复3个月后两组龈沟液各项炎症因子水平均低于修复前，且数字化组低于常规组（均P＜0.05）。数字化组并发症总发生率低于常规组（P＜0.05）。结论 DIOS可显著提高SP患者口腔种植修复效果，降低龈沟液炎症因子水平，减少并发症的发生。

      Objective To investigate the effects of digital intraoral scanner（DIOS）on the oral implant restoration effect and the levels of inflammatory factors in gingival crevicular fluid in patients with severe periodontitis（SP）．Methods A total of 100 SP patients admitted to the hospital from January 2022 to January 2025 were selected for the study．They were divided into the digital group（n=50）and the conventional group（n=50）by the sealed envelope lottery method．Both groups underwent oral implant restoration．The conventional group used the conventional silicone rubber impression technology，while the digital group underwent DIOS．The time of impression preparation，the degree of pain during the impression process，the success rate of implantation，the satisfaction of restorations，the levels of inflammatory factors in gingival crevicular fluid，and the occurrence of complications were compared between the two groups．Results The impression acquisition time of the digital group was shorter than that of the conventional group，the VAS score was lower than that of the conventional group，while the implantation success rate was higher than that of the conventional group（all P＜0.05）．The marginal fit，occlusal relationship and adjacent relationship in the digital group were all higher than those of the conventional group（all P＜0.05）．Three months after repair，the levels of various inflammatory factors in gingival crevicular fluid in both groups were lower than those at admission，and the digital group was lower than the conventional group（all P＜0.05）．The total incidence of complications in the digital group was lower than that in the conventional group（P＜0.05）．Conclusions DIOS can significantly improve the oral implant restoration effect of SP patients，reduce the levels of inflammatory factors in gingival crevicular fluid，and reduce the occurrence of complications．

       目的 探讨不同附着体类型对上颌种植覆盖义齿修复患者种植体周围软硬组织健康状况的影响。方法 选取2020年1月—2023年12月于南京医科大学附属口腔医院就诊并接受上颌种植覆盖义齿修复的90例患者，根据所用附着体类型分为杆卡组（n=30）、球帽组（n=30）和Locator组（n=30）。戴用后随访12个月，比较三组种植体周围探诊深度（PD）、探诊出血（BOP）、菌斑指数（PLI）、牙龈指数（GI）、边缘骨吸收（MBL）等指标，并记录机械并发症发生情况。结果 佩戴12个月后，杆卡组在PD［（3.25±0.41） mm vs （3.58±0.50） mm，校正后P＜0.016 7］、PLI（1.25±0.38 vs 1.55±0.44，校正后P＜0.016 7）、GI（1.15±0.35 vs 1.37±0.42，校正后P＜0.016 7）及MBL［（0.38±0.11） mm vs （0.63±0.14） mm，校正后P＜0.016 7］方面的表现均优于Locator组；球帽组PLI（1.42±0.41 vs 1.55±0.44，校正后P＜0.016 7）、GI（1.28±0.39 vs 1.37±0.42，校正后P＜0.016 7）低于Locator组；三组间BOP阳性率两两比较差异均无统计学意义（校正后P＞0.016 7）。三组机械并发症总发生率的总体差异具有统计学意义（P＜0.05），进一步两两比较显示，杆卡组并发症发生率最低（16.67%），Locator组最高（50.00%）（校正后P＜0.016 7）。结论 对于上颌种植覆盖义齿修复，杆卡式附着体在维持种植体周围软硬组织健康、减少边缘骨吸收及降低机械并发症方面表现出相对优势，临床适用性较高。

       Objective To investigate the effects of different attachment types on the health of peri-implant soft and hard tissues in patients rehabilitated with maxillary implant-supported overdentures．Methods A total of 90 patients who received maxillary implant-supported overdentures at the Affiliated Stomatological Hospital of Nanjing Medical University between January 2020 and December 2023 were selected and divided into three groups based on the attachment type：bar-clip group（n=30），ball attachment group（n=30），and Locator group（n=30）．After prosthesis delivery，patients were followed up for 12 months．Parameters including probing depth（PD），bleeding on probing（BOP），plaque index（PLI），gingival index（GI），and marginal bone loss（MBL）were compared among the groups，and mechanical complications were recorded．Results At 12 months after delivery，the bar-clip group demonstrated significantly better performance in PD（［3.25±0.41］mm vs ［3.58±0.50］mm，adjusted P＜0.016 7），PLI（［1.25±0.38］ vs ［1.55±0.44］，adjusted P＜0.016 7），GI（［1.15±0.35］ vs ［1.37±0.42］，adjusted P＜0.016 7），and MBL（［0.38±0.11］mm vs ［0.63±0.14］mm，adjusted P＜0.016 7）compared to the Locator group．The ball attachment group showed significantly lower PLI（［1.42±0.41］ vs ［1.55±0.44］，adjusted P＜0.016 7）and GI（［1.28±0.39］ vs ［1.37±0.42］，adjusted P＜0.016 7）values than the Locator group．No statistically significant difference was observed in BOP positive rates among the three groups in pairwise comparisons（adjusted P＞0.016 7）．The overall difference in the total incidence of mechanical complications among the three groups was statistically significant（P＜0.05），and further pairwise comparisons showed that the bar-clip group had the lowest incidence（16.67%），while the Locator group had the highest（50.00%）（adjusted P＜0.016 7）．Conclusions For maxillary implant-supported overdentures，bar-clip attachments demonstrate relative advantages in maintaining peri-implant soft and hard tissue health，reducing marginal bone loss，and minimizing mechanical complications，suggesting good clinical applicability．

      目的 开发一款针对慢性阻塞性肺疾病（COPD）患者居家症状管理的微信小程序，并全面评价其可用性，旨在为患者提供智能化、个性化的居家管理工具。方法 首先采用半结构化访谈分析患者及照顾者的核心需求。随后，组建多学科团队，基于需求分析结果开发了名为“呼吸哨兵”的微信小程序，包含5大功能模块。开发完成后，通过纳入10名测试者的内部测试，采用整体评估可用性问卷（PSSUQ）进行初步评估与迭代优化。最终，纳入52例COPD患者进行为期1个月的用户测试，采用系统可用性量表（SUS）及开放式问卷评价其最终可用性。结果 成功开发了“呼吸哨兵”微信小程序，包括用户登录、症状管理、健康日志、健康教育、沟通互动五大模块。内部测试后，针对PSSUQ评分高于基准值的4个题项进行了优化，关键指标如任务完成效率评分从3.50分降至2.90分。最终用户测试显示，小程序的SUS总分均值为（76.15±6.58）分，处于“良好”水平。此外，81%的用户表示愿意继续使用并推荐给其他病友。结论 “呼吸哨兵”小程序内容与功能设计针对性强，整体可用性良好，能够满足COPD患者居家康复管理的核心需求。

      Objective To develop a WeChat mini program for home-based symptom management for patients with chronic obstructive pulmonary disease（COPD）and to evaluate its usability．Methods Semi-structured interviews were used to analyze the needs of patients and caregivers．A multidisciplinary team was formed to develop the “The Breath Sentinel” mini program with five functional modules．Initially，an internal test involving 10 users was conducted using the Post-Study System Usability Questionnaire（PSSUQ）for iterative optimization．Following this，52 COPD patients were recruited for a one-month user test，and the System Usability Scale（SUS）along with an open-ended questionnaire were used for the final usability evaluation．Results We successfully developed “The Breath Sentinel” WeChat mini program．Internal testing led to targeted optimizations，improving key metrics such as the task efficiency score from 3.50 to 2.90．The final user test with 52 users showed that the mean SUS score was（76.15±6.58），indicating “good” usability．Furthermore，81% of users expressed their willingness to continue using and recommend the mini program．Conclusions The content and functions of “The Breath Sentinel” mini program are well-targeted and comprehensive．It demonstrates good usability and can meet the home rehabilitation management needs of COPD patients．

       淋证是临床常见病证，病情易迁延、反复，现代医学以抗生素治疗为主，但面临耐药与易复发等困境，严重影响患者生活质量。中医认为，其核心病机在于“大气失转，枢机不利”，导致三焦水道壅滞，肾与膀胱气化功能失常，病位虽在下焦，实则与肺、肝、胆、心、脾、肾等多脏腑功能密切相关。治疗应以“疏利少阳，运转大气”为基本治则，以小柴胡汤为基础方和解枢机，并随证配伍清热利湿、温肾化气、健脾固本等法，旨在恢复三焦气化与水液代谢功能，以达到“大气复转，水道自通”之效。该治法体现了中医从整体出发、标本兼治的辨证思想，为淋证的临床诊治提供参考。

       Strangury is a common clinical disease characterized by its persistent and recurrent course．Modern medicine primarily employs antibiotic therapy，yet challenges such as drug resistance and high recurrence rates remain，significantly affecting patients’ quality of life．In traditional Chinese medicine（TCM），its core pathogenesis involves “impaired movement of the Great Qi and obstruction of the pivotal mechanism”，which leads to stagnation of the Sanjiao water passages and dysfunction of qi transformation in the kidney and bladder．Although the disease is located in the lower Jiao，it is closely related to dysfunction of multiple organs，including the lung，liver，gallbladder，heart，spleen，and kidney．The treatment should follow the principle of “soothing and promoting Shaoyang，circulating Great Qi．” Xiaochaihu Decoction is used as the basic formula to harmonize the pivot mechanism，supplemented with therapies such as clearing heat and draining dampness，warming the kidney to promote qi transformation，and strengthening the spleen to consolidate the root，based on syndrome differentiation．This aims to restore the qi transformation function of the Sanjiao and water metabolism，thereby achieving the therapeutic goal of “restoring the movement of Great Qi and freeing the water passages．” This approach reflects TCM’s holistic concept and its dialectical thinking of addressing both root and branch，providing a reference for the clinical diagnosis and treatment of strangury．

       肺癌作为全球恶性肿瘤中发病率和死亡率较高的一种，手术是其主要治疗手段。然而，肺切除手术常引起肺功能下降，影响患者术后功能恢复及生活质量。准确预测术后肺功能对制定个体化手术方案、降低并发症风险及改善患者预后具有重要意义。目前，研究者已开发出多种结合临床指标、影像学参数及生物标志物的预测模型，用于评估肺癌患者术后肺功能变化。然而，现有模型在准确性、特异性、标准化及临床推广方面仍存在诸多挑战。本文系统综述肺癌术后肺功能的影响因素，并对现有预测模型进行总结与评价，以期为患者术前评估、手术方案选择及术后管理提供参考，进而为改善治疗效果与患者生活质量提供理论依据。

       Lung cancer is a kind of malignant tumor with high morbidity and mortality in the world，and surgery is the main treatment．However，pneumonectomy is often accompanied by the loss of lung function，which seriously affects the recovery of lung function and the  quality of life．Accurate prediction of postoperative pulmonary function is of great significance for formulating individualized surgical plans，reducing the risk of complications and improving the prognosis of patients．At present，researchers have developed a variety of predictive models that combine clinical indicators，imaging parameters，and biomarkers to evaluate postoperative lung function changes in patients with lung cancer．However，there are still many challenges in the accuracy，specificity，standardization and clinical promotion of existing models．This paper systematically reviews the influencing factors of lung function after lung cancer surgery，and summarizes and evaluates the existing prediction models，in order to provide a reference for preoperative evaluation，surgical plan selection and postoperative management of patients，and then provide theoretical basis for improving treatment effect and quality of life of patients．

      目的 探讨不同体质指数（BMI）分组成年1型糖尿病（T1DM）患者的临床特征以及超重/肥胖与心血管代谢危险因素之间的关系。方法 纳入2015年6月至2022年6月在广州市第一人民医院内分泌代谢科住院的268例成人T1DM患者。分为超重肥胖组（BMI≥24.0 kg/m²，41例）、体质量正常组（18.5≤BMI＜24.0 kg/m²，155例）和体质量过低组（BMI＜18.5 kg/m²，72例）。比较三组人口学、人体测量及代谢指标的差异，采用多元线性回归分析BMI与估算肾小球滤过率（eGFR）的关联。结果 超重肥胖组患者的特征表现为年龄更大、病程更长、体脂肪量更高、腹部皮下脂肪面积更大、腰围、臀围更大、合并高血压比例更高、收缩压更高、高密度脂蛋白胆固醇更低、eGFR更低、糖化血红蛋白（HbA1c）更低。多元线性回归分析显示，校正年龄、性别、病程后，BMI与eGFR呈负相关（β=-2.050，P=0.012）；进一步校正HbA1c、血压、血脂后，该关联不再显著。结论 超重/肥胖成人T1DM患者存在多重代谢异常聚集，BMI与eGFR的负向关联可能主要与血糖、血压、血脂等代谢因素有关。

Objective To investigate the clinical characteristics of adult patients with type 1 diabetes mellitus（T1DM）in different body mass index（BMI）categories and the associations of overweight and obesity with cardiometabolic risk factors．Methods A total of 268 adult T1DM inpatients from Guangzhou First People’s Hospital were enrolled．Patients were divided into three groups：overweight/obese（BMI≥24.0 kg/m²，n=41），normal-weight（18.5≤BMI＜24.0 kg/m²，n=155），and underweight（BMI＜18.5 kg/m²，n=72）．Demographic characteristics，anthropometric measurements，and metabolic parameters were compared among the three groups．Multivariable linear regression analyses were performed to evaluate the association between BMI and estimated glomerular filtration rate（eGFR）．Results Patients in the overweight/obesity group were characterized by older age，longer diabetes duration，higher body fat mass，larger abdominal subcutaneous fat area，greater waist and hip circumferences，a higher prevalence of hypertension，higher systolic blood pressure，lower high-density lipoprotein cholesterol levels，lower eGFR，and lower glycated hemoglobin（HbA1c）levels．Multivariable linear regression analysis demonstrated that BMI was inversely associated with eGFR after adjustment for age，sex，and diabetes duration（β=-2.050，P=0.012）．However，this association was no longer significant after further adjustment for HbA1c，blood pressure，and lipid parameters．Conclusions Overweight/obese adult T1DM patients exhibit clustering of metabolic abnormalities．The negative association between BMI and eGFR may be primarily mediated by metabolic factors such as hyperglycemia，hypertension，and dyslipidemia．