目的 调查老年脆性骨折患者术前衰弱现况,并分析影响因素。方法 采用便利抽样法, 2024年11月—2025年3月, 选取于广州市某三甲医院骨科住院的207例老年脆性骨折患者, 使用一般资料调查表、简易衰弱评估量表、简版流调中心抑郁量表、广泛性焦虑量表和营养风险筛查量表2002开展问卷调查。采用有序分类Logistic回归, 分析老年脆性骨折患者术前衰弱的影响因素。结果 207例老年脆性骨折患者的术前衰弱前期占48.3%, 衰弱发生率为23.2%。有序分类Logistic 回归分析结果显示年龄（OR=1.131）、睡眠差（OR=2.557）、合并3种及以上慢性病（OR=3.990）、抑郁（OR=3.296）、营养不良风险（OR=4.005）为老年脆性骨折患者术前衰弱的危险因素,BMI正常（OR=0.206）是保护因素（均P<0.05）。结论 老年脆性骨折患者年龄, 睡眠情况, 多种共病,抑郁, 存在营养不良风险及BMI影响其术前衰弱水平, 重视衰弱的筛查及早期干预, 提升患者治疗效果和生活质量。

       Objective To explore the preoperative frailty status and influencing factors in elderly patients with osteoporotic fractures．Methods Using convenience sampling, 207 elderly patients with osteoporotic fractures admitted to the orthopedic department of a tertiary hospital in Guangzhou from November 2024 to March 2025 were selected．Data were collected using a general information questionnaire, the Frail Scale, the 10-item Center for Epidemiologic Studies Depression Scale（CES-D-10）, the Generalized Anxiety Disorder Scale（GAD-7）, and the Nutritional Risk Screening 2002（NRS-2002）．Logistic regression was used to analyze factors influencing preoperative frailty．Results Among 207 elderly patients with osteoporotic fractures, the incidence of early stages of frailty was 48.3%, and the incidence of frailty was 23.2%．Logistic regression analysis revealed the following risk factors for preoperative frailty：age（OR=1.131）, poor sleep quality（OR=2.557）, multiple chronic comorbidities（OR=3.990）, depression（OR=3.296）, nutritional risk（OR=4.005）．Normal body mass index（OR=0.206）was a protective factor．Conclusions Advanced age,poor sleep quality, multiple chronic comorbidities, depression, nutritional risk and body mass index are associated with frailty in elderly osteoporotic fracture patients．Health care providers should pay attention to frailty screening and early intervention, which can reverse or delay the progression of frailty and improve the treatment effect and quality of life of patients．

       目的  本研究旨在探讨不同俯卧位通气（PPV）时间对重症肺炎合并胃肠功能障碍患者肠内营养耐受性的影响。方法  选择2020年7月—2023年7月在天津市人民医院重症监护病房（MICU）治疗的80例重症肺炎合并胃肠功能障碍患者为研究对象, 按每日PPV时间分为长时组（≥12 h, n=40）和短时组（<12 h, n=40）。比较两组患者一般资料、氧合指数、胃肠功能指标[腹内压、血清促胃液素（GAS）和血管活性肠肽（VIP）]、肠内营养达标率、胃肠并发症率等。结果  短时组治疗后, 1 d、3 d、5 d氧合指数为（189.93±33.72）、（247.53±63.01）、（325.03±58.11）mmHg,高于长时组的（161.63±36.88）、（191.83±57.65）、（267.95±46.25）mmHg,均P<0.05; 胃残留量为（29.00±7.92）、（19.75±4.45）、（11.00±1.87） mL低于长时组的（75.03±23.29）、（53.13±11.99）、（21.70±5.52） mL, 均P<0.05。短时组治疗后腹内压[（8.53±2.05）mmHg vs （9.75±2.05） mmHg]、VIP水平[（61.14±7.63） vs （67.49±4.43） pg/mL]低于长时组,GAS水平[（65.02±8.84） vs （54.22±9.21）pg/mL]升高（均P<0.05）。短时组总胃肠并发症发生率（7.50%）低于长时组（25.00%）, P=0.034。结论  对于重症肺炎合并胃肠功能障碍患者,每日PPV时间≤12 h可改善氧合并降低胃肠并发症风险, 可能与减轻腹压、调节胃肠激素分泌及提升肠内营养耐受性相关。

      Objective To explore the effect of different duration of prone position ventilation（PPV）on enteral nutritional tolerance in patients with severe pneumonia combined with gastrointestinal dysfunction．Methods A total of 80 patients with severe pneumonia complicated by gastrointestinal dysfunction were treated in the Medical Intensive Care Unit（MICU）of a hospital from July 2020 to July 2023, and were selected as the research subjects．They were divided into the long-duration group（≥12 hours, n=40）and the short-duration group（<12 hours, n=40）according to the daily duration of PPV．The general data, oxygenation index, gastrointestinal function indicators（intra-abdominal pressure, serum gastrin[GAS] and vasoactive intestinal peptide[VIP]）, enteral nutrition achievement rate, and gastrointestinal complications of the two groups were compared．Results The oxygenation index of the short-duration group at 1 d, 3 d,a nd 5 d after treatment（[189.93±33.72], [247.53±63.01], and[325.03±58.11] mmHg, respectively）was significantly higher than that of the long-duration group（[161.63±36.88], [191.83±57.65], and[267.95±46.25] mmHg,respectively, all P<0.05）．The gastric residual volume of the short-duration group（[29.00±7.92], [19.75±4.45], and[11.00±1.87] mL, respectively）was significantly lower than that of the long-duration group（[75.03±23.29], [53.13±11.99], and[21.70±5.52] mL, respectively, all P<0.05）．The intra-abdominal pressure（[8.53±2.05] vs [9.75±2.05] mmHg）and VIP level（[61.14±7.63] vs [67.49±4.43] pg/mL）of the short-duration group after treatment were significantly lower than those of the long-duration group, while the GAS level（[65.02±8.84] vs [54.22±9.21] pg/mL）was significantly higher（all P<0.05）．The total incidence of gastrointestinal complications in the short-duration group（7.50%）was significantly lower than that in the long-duration group（25.00%, P=0.034）．Conclusions For patients with severe pneumonia complicated by gastrointestinal dysfunction, a daily duration of PPV within 12 hours can improve oxygenation and reduce the risk of gastrointestinal complications, which may be related to the reduction of intra-abdominal pressure, regulation of gastrointestinal hormone secretion, and improvement of enteral nutrition tolerance． 

       目的 探索α-突触核蛋白（α-Syn）干预对人单核细胞白血病细胞系（THP-1）巨噬细胞源性泡沫细胞的影响。方法 通过佛波酯（PMA）和氧化型低密度脂蛋白（ox-LDL）构建THP-1巨噬细胞源性泡沫细胞模型,使用不同浓度（33、66、100、133 nmol/L）α-Syn处理泡沫细胞,随后检测细胞胆固醇含量和炎症因子白细胞介素-1β（IL-1β）、白细胞介素-6（IL-6）及白细胞介素-8（IL-8）的mRNA表达以及核因子κB（NF-κB）和凝集素样氧化低密度脂蛋白受体-1（LOX-1）的蛋白表达变化。结果 高剂量（100和133 nmol/L）α-Syn处理可以减少THP-1巨噬细胞源性泡沫细胞内胆固醇的含量（P<0.05）,并且减少IL-1β、IL-6和IL-8的mRNA表达（P<0.05）。进一步发现（100 nmol/L和133 nmol/L）α-Syn可以降低THP-1巨噬细胞源性泡沫细胞p-NF-κB和LOX-1的蛋白表达（P<0.05）。结论 α-Syn可以降低THP-1源性巨噬细胞泡沫细胞胆固醇蓄积和炎症反应,可能是通过下调p-NF-κB和LOX-1蛋白表达。

      Objective To explore the effects of α-synuclein（α-Syn）intervention on human monocytic leukemia cell（THP-1）macrophage-derived foam cells．Methods The THP-1 macrophage-derived foam cell model was constructed by phorbol 12-myristate 13-acetate（PMA）and oxidized low-density lipoprotein（ox-LDL）．Foam cells were treated with different concentrations（33, 66, 100, and 133 nmol/L）of α-Syn, and the cellular cholesterol contents, as well as the mRNA expression of IL-1β、IL-6 and IL-8 were detected．Subsequently,alternation in protein expression of NF-κB and LOX-1 was measured．Results High-dose（100 and 133nmol/L）α-Syn treatment significantly reduced the levels of intracellular cholesterol in THP-1-derived macrophage foam cells（P<0.05）and decreased the mRNA expression of IL-1β、IL-6 and IL-8（P<0.05）．It was further found that（100 nmol/L and 133 nmol/L）α-Syn decreased the protein expression of p-NF-κB and LOX-1 in THP-1 macrophage-derived foam cells（P<0.05）．Conclusions The results of the present study suggest that α-Syn reduces cholesterol accumulation and inflammatory response in THP-1-derived macrophage foam cells, possibly by down-regulating p-NF-κB and LOX-1 protein expression．

      目的 探讨肺癌根治术后患者康复期的症状体验与心理感受, 为完善症状管理和制定个性化康复干预方案提供依据。方法 采用现象学研究法,对15例肺癌根治术后康复期患者进行半结构式访谈, 运用Colaizzi 7步分析法进行归纳和提炼主题。结果 归纳出5个主题, 12个亚主题：多重躯体症状负担持续存在（术后疼痛综合征、顽固性刺激性咳嗽、劳力性呼吸困难、持续性疲劳感）; 负性心理情绪困扰（病耻感、疾病不确定感与复发恐惧）; 心理调适过程（诊断冲击与认知失调、角色适应与主动应对）; 创伤后成长与健康行为转变（生命意义感提升、健康促进行为强化）; 强烈的康复信息支持需求（自我保健知识需求、结构化康复锻炼指导需求）。结论 医护人员应关注肺癌根治术后患者康复期的症状体验, 动态评估患者的身心状况, 制定精准、有效的个性化干预方案, 帮助患者树立康复信心, 改善术后康复体验和提高生活质量。

       Objective  To explore the symptom experience and psychological feelings of patients during the rehabilitation period after radical resection of lung cancer, aiming to provide a basis for improving symptom management and formulating personalized rehabilitation interventions．Methods The phenomenological research method was used to conduct semi-structured interviews with 15 patients in the rehabilitation period after radical surgery for lung cancer．Colaizzi's 7-step analysis method was used to summarize and extract themes．Results Five themes and 12 sub-themes were summarized：Persistent burden of multiple physical symptoms（postoperative pain syndrome, refractory irritative cough, exertional dyspnea, persistent fatigue）; negative emotional experiences（stigma of illness, illness uncertainty and fear of recurrence）; psychological adjustment processes（diagnostic shock and denial, role acceptance and active coping）; post-traumatic growth and health behavior transformation（enhanced sense of meaning in life, strengthened health-promoting behaviors）; strong demand for rehabilitation information support（self-care knowledge, rehabilitation exercise knowledge）．Conclusions Medical staff should pay attention to the symptom experience of patients during the recovery period after radical lung cancer surgery, dynamically assess their physical and mental conditions, develop precise and effective personalized intervention plans, help patients build confidence in recovery, and thereby improve their postoperative rehabilitation experience and quality of life．

       炎症性肠病是一种慢性复发性疾病, 患者希望水平较低, 可能加剧疾病活动度、降低治疗依从性并降低其生活质量。文章从炎症性肠病患者希望水平的现状、评估工具、影响因素及干预方法四方面进行综述, 剖析现存挑战并提出未来研究方向, 旨在提升医护人员对希望水平管理的重视,为进一步构建科学、合理的炎症性肠病患者希望水平规范化管理方案提供参考。

        Inflammatory bowel disease（IBD）is a chronic and frequently recurring disease, and low level of hope in patients may exacerbate disease activity, reduce treatment adherence,and lower their quality of life．This article reviews the current situation of hope level, assessment tools, influencing factors and intervention methods, to analyze the existing challenges and proposes future research directions, aiming to raise the attention of hope level management among healthcare professionals, and to provide reference for the construction of a scientific, reasonable and standardized management plan for hope level of patients with inflammatory bowel disease．

       克罗恩病肛瘘在解剖结构、诊治措施及疾病预后上具有与普通肛瘘不同的特点, 它是克罗恩病患者常见且严重的并发症及预后不良的征兆,严重影响患者生活质量。文章概述了克罗恩病肛瘘的概念及诊治现状、患者生活质量、相关评估工具及护理措施, 旨在为此类患者的临床管理及相关研究的开展提供参考依据,以提高其生活质量。

       Perianal fistula of Crohn's Disease has different characteristics from common anal fistula in anatomical structure, diagnosis and treatment and prognosis．It is a common and serious complication and a sign of poor prognosis in patients with Crohn's disease, which seriously affects the quality of life of patients．This article summarizes the concept, current status of diagnosis and treatment of perianal fistula in Crohn's Disease, its impact on the quality of life in patients, related assessment tools and nursing measures, so as to provide a reference for the management of such patients and improve their quality of life．

       目的   评估ChatGPT 4与Llama 3微调模型在乳腺癌诊断中的应用效果，特别是在超声、钼靶及超声联合钼靶的非结构化报告和影像诊断方面。方法   回顾性收集了689例同时接受乳腺超声和钼靶检查的患者数据，比较两种模型在文本和图像模态下的诊断性能，并探讨乳腺密度对模型表现的影响。结果   在文本模态下，微调Llama 3表现优异，联合诊断准确率达91.7%，优于ChatGPT 4的71.7%。图像模态中两模型准确率均低于70%，但ChatGPT 4灵敏度较高（78.3%），Llama 3特异度突出（98.3%）。分组分析表明，在非致密型乳腺中钼靶表现更佳，而致密型乳腺中超声诊断更具优势。结论   大语言模型在医学图像处理和多模态整合方面仍需进一步优化，医学领域微调的大语言模型在处理非结构化临床文本方面具有潜力。

       Objective  To evaluate the application effectiveness of ChatGPT 4 and the fine-tuned Llama 3 model in breast cancer diagnosis，particularly in processing unstructured reports and diagnostic imaging of ultrasound，mammography，and their combined modalities．Methods  Retrospective data from 689 patients who underwent both breast ultrasound and mammography examinations were collected．The diagnostic performance of the two models was compared across text and image modalities，and the impact of breast density on model performance was explored．Results  In the text modality，the fine-tuned Llama 3 model performed excellently，achieving a combined diagnostic accuracy of 91.7%，outperforming 71.7% of ChatGPT 4．In the image modality，both models had accuracies below 70%，but ChatGPT 4 exhibited higher sensitivity（78.3%），while Llama 3 demonstrated outstanding specificity（98.3%）．Subgroup analysis indicated that mammography performed better in non-dense breasts，whereas ultrasound was more advantageous in dense breasts．Conclusions  The large language models  still  require further optimization in medical image processing and multimodal integration，but fine-tuned large language models in the medical field show potential in handling unstructured clinical texts．

       动脉粥样硬化（AS）是一种起始于炎症介导的内皮损伤的慢性血管疾病，其本质是免疫炎症驱动的病理过程，是众多心血管疾病的病理基础。CD4⁺  T细胞亚群［包括辅助性T细胞1型（T helper 1 cell，Th1）、Th2、Th17、调节性T细胞等］通过分泌特异性细胞因子参与AS的炎症反应，其中促炎性CD4+  T细胞与抗炎性CD4⁺  T细胞的抗炎功能失衡是推动斑块进展的关键环节，在AS斑块形成与发展中起关键作用。近年来，多项研究表明某些中药单体、经典复方及其有效成分，具有多靶点、多层次机制调控CD4⁺  T细胞分化及功能，这些作用共同减轻血管内皮炎症反应、抑制巨噬细胞泡沫化及平滑肌细胞迁移等，延缓AS斑块形成与发展，为AS防治提供了新思路，展现了中医药在该领域的研究展现出独特优势与广阔前景，本文综述了中医药通过干预CD4⁺  T细胞亚群平衡防治AS的最新研究进展，及其影响相关细胞因子网络及关键信号通路的作用机制，为开发具有多靶点协同优势的创新中药与中西医结合治疗方案提供了关键理论依据与实践方向。

       Atherosclerosis（AS）is a chronic vascular disease that originates from inflammation mediated endothelial 

damage．Its essence is a pathological process driven by immune inflammation，and it is the pathological basis of many cardiovascular diseases．CD4⁺  T cell subsets（including Th1，Th2，Th17，Treg，etc.）participate in the inflammatory response of AS by secreting specific cytokines．The imbalance of anti-inflammatory function between pro-inflammatory CD4⁺  T cells and anti-inflammatory CD4⁺T cells is a key link in promoting plaque progression and playing a crucial role in the formation and development of AS plaques．In recent years，a number of studies have shown that the monomers，classic prescriptions and their effective ingredients of Chinese herbs have the effect of multi-target，multi-level mechanism to regulate the differentiation and function of CD4⁺  T cells．These effects together reduce the inflammatory reaction of vascular endothelium，inhibit the foam formation of macrophages and smooth muscle cell migration，delay the formation and development of AS plaque，provide new ideas for the prevention and treatment of AS，and make the research of Chinese medicine show unique advantages and broad prospects in this field．This article  reviews the latest  research progress of Chinese medicine in the prevention and treatment of AS by intervening in the balance of CD4⁺  T cell subsets，as well as the mechanism of its effects on related cytokine networks and key signal pathways．This provides a key theoretical basis and practical direction for the development of innovative traditional Chinese medicine and integrated traditional Chinese and Western medicine treatment plans with multi-target synergistic advantages．

       铁死亡是一种以铁依赖性脂质过氧化为特征的程序性细胞死亡形式。近年来研究表明，铁死亡与缺氧应答的关键调控因子——缺氧诱导因子（HIF）存在密切关联。HIF（包括HIF-1α、HIF-2α、HIF-3α三种亚型）调控的铁死亡在结直肠癌、胃癌、溃疡性结肠炎及其他胃肠黏膜损伤性疾病中发挥作用，影响疾病的发生发展。但目前关于HIF-铁死亡通路在不同胃肠道疾病中的差异化作用及调控机制尚未完全阐明。因此，本文对HIF各亚型调控铁死亡的分子机制及其在胃肠道疾病中的作用进行综述，以期为靶向HIF-铁死亡通路治疗相关疾病提供新的思路。

       Ferroptosis is a form of regulated cell death characterized by iron-dependent lipid peroxidation．Recent 

studies have demonstrated a close association between ferroptosis and hypoxia-inducible factor（HIF），the key  regulator of the hypoxic response．Ferroptosis regulated by HIF（comprising three isoforms：HIF-1α，HIF-2α，and HIF-3α）plays a  role in colorectal cancer，gastric cancer，ulcerative colitis，and other gastrointestinal mucosal injury diseases，impacting their initiation and progression．However，the differential roles and regulatory mechanisms of the HIF-ferroptosis pathway in various gastrointestinal diseases remain incompletely elucidated．Therefore，this  review  summarizes the molecular mechanism networks through which individual HIF isoforms regulate ferroptosis and their roles in gastrointestinal diseases，with the aim of providing new perspectives for targeting the HIF-ferroptosis pathway to treat relevant diseases．

      目的   残余胆固醇（RC）是反映动脉粥样硬化性血脂异常的重要指标，其在糖尿病合并冠心病患者中的临床意义尚不明确。本研究旨在探讨RC水平对糖尿病合并冠心病患者心力衰竭风险的预测价值，并分析其相关性。方法   本研究为回顾性横断面研究，纳入2021年1月—2024年1月期间在鹤壁市人民医院接受诊治的292例糖尿病合并冠心病患者。根据是否存在心力衰竭分为心力衰竭组（128例）和无心力衰竭组（164例）。对基线特征进行比较，采用单因素和多因素Logistic回归分析RC与心力衰竭的相关性。同时，通过限制性立方样条（RCS）分析探讨RC与心力衰竭风险的线性关系，并通过受试者操作特征（ROC）曲线和曲线下面积（AUC）评估RC的预测价值。结果   心力衰竭组患者的男性比例、高血压患病率、RC水平等高于无心力衰竭组，而估算肾小球滤过率水平显著降低（P＜0.05）。单因素分析显示，RC＞0.7 mmol/L显著增加心力衰竭风险（OR=1.854，95%CI：1.161~2.960，P=0.010）。多因素Logistic回归分析中，全调整模型结果显示，RC作为分类变量时，RC＞0.7 mmol/L的患者心力衰竭风险显著增加1.891倍（OR=1.891，95%CI：1.047~3.415，P=0.035）；作为连续变量时，RC每增加1单位，心力衰竭风险增加2.464倍（OR=2.464，95%CI：1.495~4.064，P＜0.001）；Log₁₀RC的风险比为6.411（95%CI：2.246~18.302，P=0.001）；标化RC的风险比为1.687（95%CI：1.262~2.255，P＜0.001）。限制性立方样条分析表明RC与心力衰竭风险呈线性正相关，ROC分析显示RC预测心力衰竭的AUC为0.621（95%CI：0.555~0.687，P＜0.001）。结论  RC水平与糖尿病合并冠心病患者心力衰竭风险显著相关，且呈线性正相关。RC具有一定的预测价值，可作为该人群心力衰竭风险评估的潜在指标。

       Objective  Residual cholesterol（RC）is  an important marker  reflecting  dyslipidemia  associated with atherosclerosis．Its clinical significance in patients with diabetes and coronary heart disease（CHD）remains unclear．To explore the predictive value of RC level for the risk of heart failure（HF）in patients with diabetes and CHD and analyze their association．Methods  This retrospective cross-sectional study included 292 patients with diabetes and CHD who were treated at Hebi People’s Hospital between January 2021 and January 2024．Patients were divided into the HF group（128 cases）and the non-HF group（164 cases）based on the presence of HF．Baseline characteristics were compared，and univariate and multivariate Logistic  regression analyses were performed to assess the association between RC and HF．Additionally，restricted cubic spline（RCS）analysis was used to explore the linear relationship between RC and HF risk，and the predictive value of RC was evaluated using receiveroperating characteristic（ROC）curves and the area under the curve（AUC）．Results  The HF group had significantly higher proportions of males，hypertension prevalence and RC levels，while estimated glomerular filtration rate were significantly lower compared to the non-HF group（P＜0.05）．Univariate analysis showed that RC＞0.7 mmol/L significantly increased the risk of HF（OR=1.854，95%CI：1.161–2.960，P=0.010）．In the fully adjusted multivariate Logistic regression model，RC（RC＞0.7 mmol/L）was associated with a 1.891-fold increased risk of HF as a categorical variable（OR=1.891，95%CI：1.047–3.415，P=0.035）．As a continuous variable，each increased unit in RC was associated with a 2.464-fold increased risk of HF（OR=2.464，95%CI：1.495–4.064，P＜0.001）．The odds ratios for Log₁₀RC and standardized RC were 6.411（95%CI：2.246–18.302，P=0.001）and 1.687（95%CI：1.262–2.255，P＜0.001），respectively．ROC analysis indicated a linear positive association between RC and HF risk（P=0.002）．ROC analysis showed that RC had predictive value for HF，with an AUC of 0.621（95%CI：0.555–0.687，P＜0.001）．Conclusions  RC levels are significantly associated with the risk of HF in patients with diabetes and CHD，demonstrating a linear positive correlation．RC has potential predictive value and may serve as a useful indicator for assessing HFrisk in this population．