目的 构建首发脑出血患者并发卒中相关性肺炎的风险预测模型并验证模型的预测性能。方法 回顾性分析2012年1月—2022年12月广州市第一人民医院治的419例首发脑出血患者的临床资料，按照7︰3比例随机化分为训练列（293例）和验证队列（126例）。统计基于开发队列数据，采用Logistic回归模型分析首发脑出血患者并发卒中相关性肺炎的影响因素，并构建风险预测模型。基于开发队列和验证队列数据，采用校准曲线、受试者操作特征（ROC）曲线下面积和决策曲线分析模型的预测性能。结果 419例首发脑出血患者中有113例发生卒中相关性肺炎，发生率为26.97%。美国国立卫生研究院卒中量表（NIHSS）评分、吞咽困难、初始血肿体积、中性粒细胞百分比与白蛋白比值（NPAR）、中性粒细胞计数与淋巴细胞计数比值（NLR）、手术治疗、气管插管、留置胃管均是首发脑出血患者并发卒中相关性肺炎的影响因素（P＜0.05）。基于上述影响因素构建了首发脑出血患者并发卒中相关性肺炎的风险预警模型，校准曲线显示模型在开发队列和验证队列中预测卒中相关性肺炎发生率均与实际发生率相近；ROC曲线显示此模型在开发队列、验证队列中预测的曲线下面积分别为0.906（95%CI：0.867~0.937）、0.884（95%CI：0.815~0.934）；决策曲线分析显示当开发队列阈概率在3%~80%内、验证队列阈概率在2%~76%内使用此模型干预比全/无干预更有临床价值。结论 基于NIHSS评分、吞咽困难、初始血肿体积、NPAR、NLR、手术治疗、气管插管、留置胃管构建的首发脑出血患者并发卒中相关性肺炎的风险预测模型具有良好预测性能和临床应用价值。

      Objective To construct a risk prediction model for stroke associated pneumonia in patients with initial cerebral hemorrhage（ICH）and validate the predictive performance of the model．Methods A retrospective analysis was conducted on the clinical data of 419 patients with ICH admitted to our hospital from January 2012 to December 2022．They were randomly divided into a development cohort（293 cases）and a validation cohort（126 cases）according to a 7∶3 ratio．The Logistic regression model was used to analyze the influencing factors of stroke related pneumonia in patients with ICH based on the development cohort data，and a risk prediction model was constructed．Based on the development cohort data and validation cohort data，the predictive performance of the model was analyzed using calibration curves，receiver operating characteristic（ROC）curve，and decision curve analysis．Results Among 419 patients，113 developed stroke associated pneumonia，with a rate of 26.97%．The National Institutes of Health Stroke Scale（NIHSS）score，swallowing difficulties，initial hematoma volume，neutrophil percentage to albumin ratio（NPAR），neutrophil count to lymphocyte count ratio（NLR），surgical treatment，endotracheal intubation，and indwelling gastric tube were all independent influencing factors for stroke associated pneumonia in patients with ICH（P＜0.05）．Based on the above influencing factors，a risk prediction model for stroke associated pneumonia in patients with ICH was constructed．The calibration curve showed that the predicted incidence of stroke associated pneumonia by the model in both the development and validation cohorts was close to the actual incidence．The ROC curve showed that the predicted area under the curve for this model in the development cohort and validation cohort was 0.906（95%CI：0.867-0.937）and 0.884（95%CI：0.815-0.934），respectively．The decision curve analysis showed that when the threshold probability of the development cohort was between 3%-80%，and the threshold probability of the validation cohort was between 2%-76%，the intervention using this model was more clinically valuable than all/no intervention．

Conclusions The risk prediction model for stroke associated pneumonia in patients with ICH based on NIHSS score，swallowing difficulties，initial hematoma volume，NPAR，NLR，surgical treatment，tracheal intubation，and indwelling gastric tube has good predictive performance and clinical application value．

目的：描述发病48 h内急性缺血性卒中（acute ischemic stroke，AIS）患者依达拉奉右莰醇真实世界用药特征，探讨48 h内不同启动时间与住院期间神经功能改善及短期预后的关系。方法：回顾性连续筛选2023年12月1日至2026年4月30日本院诊断为AIS并使用依达拉奉右莰醇的住院患者，药学部基于药学信息系统、住院医嘱及病历记录提取资料。初筛147例，排除35例，纳入112例发病至首次用药时间（onset-to-treatment time，OTT）≤48 h者；按预设24 h界值分为24 h内用药组（n=67）和24～48 h用药组（n=45）。主要结局为住院期间美国国立卫生研究院卒中量表（National Institutes of Health Stroke Scale，NIHSS）变化值（ΔNIHSS=入院NIHSS评分－出院前NIHSS评分）；次要结局包括出院前NIHSS评分、出院改良Rankin量表（modified Rankin Scale，mRS）评分、显著神经功能改善、住院时间、出院去向及安全性事件。采用多因素线性回归分析24 h内用药与ΔNIHSS的相关性，并行简化模型、排除再灌注治疗患者、完整疗程人群、进一步调整大血管闭塞及OTT连续变量模型等敏感性分析。结果：总体OTT为19.65（14.97，34.68）h，疗程12.00（11.00，13.00）d，完成相对完整疗程比例89.3%。两组入院NIHSS评分差异无统计学意义［8.00（6.00，9.00）分 vs 8.00（6.00，10.00）分，P=0.447］；24 h内用药组出院前NIHSS评分更低［5.00（4.00，6.50）分 vs 6.00（5.00，8.00）分，P=0.025］，ΔNIHSS更高［3.00（2.00，3.00）分 vs 2.00（1.00，2.00）分，P＜0.001］，显著神经功能改善率更高（77.6% vs 60.0%，P=0.045）。多因素校正后，24 h内用药仍与更大的ΔNIHSS相关（β=0.768，95%CI：0.377～1.159，P＜0.001）；Logistic探索性分析显示其与显著神经功能改善发生可能性较高相关（OR=2.475，95%CI：1.047～5.853，P=0.039）。两组出血转化、症状性颅内出血、药物相关不良反应及院内死亡差异均无统计学意义。结论：本单中心真实世界队列中，发病48 h内依达拉奉右莰醇治疗疗程完成比例较高、短期安全性事件发生率低；24 h内启动治疗与住院期间NIHSS改善幅度较大及显著神经功能改善率较高相关。由于为回顾性观察性研究，结果应解释为关联性证据，需前瞻性、多中心研究及长期功能结局验证。

Objective: To describe real-world treatment characteristics of edaravone dexborneol in acute ischemic stroke (AIS) patients treated within 48 hours of onset and to explore the association between initiation time and short-term in-hospital outcomes. Methods: This single-center retrospective real-world study screened hospitalized AIS patients with edaravone dexborneol records from December 1, 2023 to April 30, 2026. Medication data were extracted from the pharmacy information system, inpatient orders, and medical records. After 35 exclusions, 112 of 147 patients with onset-to-treatment time (OTT) ≤48 h were included and classified by a prespecified 24-hour cutoff into a within-24-hour group (n=67) and a 24-48-hour group (n=45). The primary outcome was in-hospital National Institutes of Health Stroke Scale (NIHSS) change (ΔNIHSS=admission NIHSS minus pre-discharge NIHSS); secondary outcomes included pre-discharge NIHSS, discharge modified Rankin Scale (mRS), marked neurological improvement, length of stay, discharge destination, and safety events. Multivariable linear regression assessed the association between within-24-hour treatment and ΔNIHSS, with sensitivity analyses using simplified adjustment, exclusion of reperfusion-treated patients, the complete-course population, additional adjustment for large-vessel occlusion, and continuous OTT modeling. Results: Median OTT was 19.65 (14.97, 34.68) h, treatment duration was 12.00 (11.00, 13.00) days, and 89.3% completed a relatively complete course. Baseline NIHSS was comparable [8.00 (6.00, 9.00) vs 8.00 (6.00, 10.00), P=0.447]. The within-24-hour group had lower pre-discharge NIHSS [5.00 (4.00, 6.50) vs 6.00 (5.00, 8.00), P=0.025], greater ΔNIHSS [3.00 (2.00, 3.00) vs 2.00 (1.00, 2.00), P<0.001], and a higher marked improvement rate (77.6% vs 60.0%, P=0.045). After adjustment for age, admission NIHSS, reperfusion therapy, and atrial fibrillation, within-24-hour treatment remained associated with greater ΔNIHSS (β=0.768, 95% CI: 0.377-1.159, P<0.001). Exploratory logistic regression showed a higher likelihood of marked improvement (OR=2.475, 95% CI: 1.047-5.853, P=0.039). Hemorrhagic transformation, symptomatic intracranial hemorrhage, drug-related adverse reactions, and in-hospital death did not differ significantly. Conclusion: In this real-world cohort, edaravone dexborneol within 48 h of AIS onset showed a high complete-course proportion and low short-term safety event incidence. Initiation within 24 h was associated with greater in-hospital NIHSS improvement and a higher marked improvement rate than initiation at 24-48 h. These findings are associative and need prospective multicenter validation with long-term functional outcomes.

目的:探讨早期康复治疗对中青年脑卒中患者肢体运动功能恢复等影响。方法：从我院选取中青年脑卒中患者90例作为实验对象，分为实验组和观察组各45例，两组同时接受相同常规治疗并给予早期康复介入，并对其进行患侧上肢和下肢功能评定量表（ Fugl-Meyer, FMMS），以及患者日常生活活动能力（Modified Barthel Index,MBI）评定。实验组给予进一步强化康复运动治疗，以加速提高患者康复速率；2周结束时对实验组和观察组再次进行评估，比较2组患者治疗前后组内和组间治疗疗效。结果：早期康复2周后，实验组FMMS量表上肢评分为(29.82±15.43)分，观察组上肢评分为(21.33±11.98)分，组间存在统计学差异（P=0.005）。实验组FMMS量表下肢评分为(21.18±8.97)分，观察组下肢评分为(15.40±7.40)分，实验组得分高于观察组且两组间存在显著统计学差异（P=0.002）；随访1个月后实验组上下肢功能呈持续改善趋势，且两组间差异具有显著统计学意义。实验组MBI量表评分为(35.56±18.93)分，高于对照组（28.56±14.68）分，但未见统计学意义；1个月后两组间差异具有显著统计学意义（P＜0.001）。结论：研究表明，早期康复治疗对改善中青年脑卒中患者肢体功能和日常生活活动能力具有显著康复效果。

Objective:Exploring the impact of early rehabilitation therapy on the recovery of limb motor function and other aspects in young and middle-aged stroke patients. Methods: Ninety young and middle-aged stroke patients were selected from our hospital as experimental subjects and divided into two groups, namely the experimental group and the observation group, with 45 cases in each group. Both groups received the same conventional treatment and early rehabilitation intervention simultaneously, and were evaluated using the Fugl-Meyer Motor Scale (FMMS) for the affected upper and lower limbs, as well as the Modified Barthel Index (MBI) for activities of daily living. The experimental group received further intensive rehabilitation exercise therapy to accelerate the rehabilitation rate. At the end of 2 weeks, both groups were reassessed, and the therapeutic effects within and between the two groups before and after treatment were compared. Results: After 2 weeks of early rehabilitation, the FMMS upper limb score in the experimental group was (29.36±15.27) points, while that in the observation group was (25.18±11.99) points, with no statistically significant difference observed between the groups. The FMMS lower limb score in the experimental group was (20.93±8.93) points, higher than that in the observation group (15.40±7.40) points, with a significant statistical difference between the two groups (P=0.002). The MBI score in the experimental group was (33.22±15.96) points, higher than that in the control group (28.56±14.68) points, but no statistical significance was observed. Conclusions: Our study indicates that early rehabilitation therapy has certain effects on upper limb function and activities of daily living in patients, particularly demonstrating significant rehabilitation effects in improving lower limb functional recovery in young and middle-aged stroke patients.

       脑卒中后认知障碍（PSCI）是脑卒中患者常见的并发症，严重影响患者的生活质量和社会功能。近年来，随着认知储备理论的发展和早期干预理念的普及，PSCI的早期干预模式逐渐成为研究热点。文章综述了PSCI早期干预模式的研究现状与进展，包括干预的理论基础、具体措施及未来发展方向，以期为临床实践和科研提供参考。

       Post-stroke cognitive impairment（PSCI）is a common complication among stroke patients．It seriously affects the patients’ quality of life and social functions．In recent years，with the development of the cognitive  reserve theory and the popularization of the concept of early intervention，the early intervention model for PSCI has gradually become a research hotspot．This article reviews the current research status and progress of the early intervention model for PSCI，including the theoretical basis of the intervention，specific measures，and future development directions，aiming to provide  references for clinical practice and scientific research．

       目的 分析广东省卒中中心建设现状及存在的问题,提出切实可行的改善建议。方法 基于广泛的文献调研, 通过问卷对广东省护士协会卒中中心建设与管理分会相关单位开展问卷调查, 统计分析其在医院管理制度、医护人员卒中救治水平及健康宣教等方面的现状与问题。结果 广东省卒中中心建设与管理委员会相关单位在卒中救治中基本实现跨学科合作, 院前评估制度基本满足卒中判断需求, 在提高卒中救治效率方面已基本形成共识, 卒中健康宣教基本满足患者需求, 但方式有待改进, 卒中随访制度和个案管理制度基本符合要求; 存在的问题包括卒中中心一线救治人员外出交流学习机会较少; 院前评估数据采集的便利性有待提高; 卒中康复需求仍难以满足; 健康宣教工作仍需加强。结论 广东省卒中中心建设与管理委员会相关单位在卒中院前评估、院内救治、出院随访和健康宣教方面能够满足患者需求, 但仍存在不足。建议相关单位为一线工作人员提供更多外出交流学习机会, 充分应用互联网和物联网技术提高院前卒中数据采集共享便利性; 加强多种形式的科普宣教, 继续完善拓展卒中康复治疗和护理服务并完善相关制度。

       Objective To understand the current situation of construction and existing problems of Stroke Center in Guangdong Province．Put forward feasible suggestions for improvement．Methods Based on extensive literature research, a questionnaire was designed to investigate the relevant organizations of Stroke Center Construction and Management Branch of Guangdong Nurses Association．The status quo and existing problems in hospital management system, stroke treatment level of medical staff, health education and other aspects were statistically analyzed．Results The relevant organizations of the Guangdong Stroke Center Construction and Management Committee could basically achieve interdisciplinary cooperation in stroke treatment, the pre-hospital assessment system basically met the needs of stroke judgment, and a consensus was basically reached on how to improve the efficiency of stroke treatment．Stroke health education basically met the needs of patients but the methods need to be improved．The stroke follow-up system and case management system basically met the requirements,but there were not many opportunities for first-line treatment personnel in stroke centers to exchange and study abroad．The convenience of data collection for pre-hospital assessment needed to be improved．Stroke rehabilitation needs were still difficult to meet．Health education still needs to be strengthened．Conclusions The relevant units of Guangdong Stroke Center Construction and Management Committee can meet the needs of patients in the aspects of pre-hospital assessment, in-hospital treatment,discharge follow-up and health education, but there are still shortcomings．It is suggested that relevant organizations provide more opportunities for front-line staff to exchange and study abroad, make full use of Internet and Internet of Things technology to improve the convenience of pre-hospital stroke data collection and sharing．Strengthen various forms of science popularization and education, and continue to improve and expand stroke rehabilitation treatment and nursing services, improve relevant systems．

       目的   探讨优化护理路径在急性缺血性脑卒中介入手术中的应用及效果。方法   采用随机对照研究，纳入2024年1月—2025年1月收治的112例急性缺血性脑卒中取栓患者，观察组（56例）实施优化介入护理路径，对照组（56例）采用常规护理。结果   观察组患者的满意度评分、医护满意度评分均优于对照组（P＜0.05）；观察组的术前等待时间、患者自进入介入室至股动脉穿刺时间、手术时间、住院费用、并发症发生率、差错事故发生率也优于对照组（P＜0.05）。结论   通过标准化术前准备、术中多学科协作及术后康复衔接，优化护理路径可显著提升急性缺血性脑卒中治疗时效性（缩短急性脑卒中患者从进入医院到开始静脉溶栓给药的时间至黄金时间窗内），改善患者神经功能预后。

       Objective  To explore the application and efficacy of an optimized nursing pathway in endovascular therapy for acute ischemic stroke（AIS）．Methods  A randomized controlled trial was conducted，enrolling 112 AIS patients undergoing mechanical thrombectomy from January 2024 to January 2025．Patients were randomly assigned to either the observation group（n=56），which received the optimized interventional nursing pathway，or the control group（n=56），which  received  routine nursing care．Results  Patient satisfaction score，medical staff satisfaction score，and postoperative favorable  recovery  rate in observation group were better than those of control group（P＜0.05）．Additionally，the observation group  showed  significant improvements in preoperative waiting time，time from entering the operation room to femoral artery puncture，surgical duration，hospitalization costs，complication incidence rate，and medical error incidence rate（P＜0.05）．Conclusions  By standardizing preoperative preparations，implementing intraoperative multidisciplinary collaboration，and enhancing postoperative  rehabilitation coordination，the optimized nursing pathway significantly improved the timeliness of thrombectomy treatment（shortening door-to-needle time to reach the golden time window）and enhanced neurological functional prognosis in AIS patients，demonstrating substantial clinical applicability．

目的 探究本体感觉神经肌肉促进疗法（PNF）技术与居家远程康复治疗对缺血性脑卒中患者凝血功能、平衡状态的影响。方法 选择2023年1月—2024年1月在宁乡市中医医院择期治疗的60例缺血性脑卒中患者为研究对象。按照患者选择的治疗方案进行分组, 观察组接受PNF技术联合居家远程康复指导治疗, 对照组接受常规居家远程康复指导治疗。记录疗效、凝血功能、神经功能缺损症状。结果 凝血功能方面,观察组治疗后活化部分凝血酶时间（APTT）、凝血酶原时间（PT）高于治疗前, 二聚体（D-D）、纤维蛋白原（FIB）低于治疗前,组间比较差异有统计学意义（P<0.05）。与对照组相比, 观察组的APTT、PT、D-D、FIB指标相近,组间比较差异无统计意义（P>0.05）。治疗后, 观察组平衡功能（BBS）评分比治疗前高, 组间比较差异有统计学意义（P<0.05）。观察组BBS评分、FMA评分、肌力等级更高, 组间比较差异有统计学意义（P<0.05）。结论 PNF技术+居家远程康复指导治疗可作为缺血性脑卒中患者治疗的有效手段。联合治疗后凝血功能、平衡状态、肢体功能状况、肌力明显改善, 可见联合治疗对于减轻患者病情尤为明显。

Objective To explore the effects of proprioceptive neuromuscular facilitation（PNF）and home-based remote rehabilitation on coagulation function and balance function in patients with ischemic stroke．Methods From January 2023 to January 2024, 60 patients with ischemic stroke were selected from our hospital．The patients were divided into two groups according to the treatment plan chosen by themselves．The patients in the observation group received PNF technology combined with home-based remote rehabilitation guidance, while the patients in the control group received routine home-based remote rehabilitation guidance．The curative effect, coagulation function and neurological deficit were recorded．Results After treatment, activated partial thrombin time（APTT）and prothrombin time（PT）were significantly higher, D-dimer（D-D）and fibrinogen（FIB）were significantly lower in the observation group than those before treatment（P<0.05）．Compared with the control group, the APTT, PT, D-D and FIB of the observation group were similar, and there was no significant difference between the two groups（P>0.05）．After treatment, the Berg Balance Scale score of the observation group was higher than that before treatment, and there was significant difference between the two groups（P<0.05）．The Berg Balance Scale score, Fugl-Meyer Assessment score and muscle strength grade of observation group were higher than those of control group（P<0.05）．Conclusions PNF combined with home-based remote rehabilitation can be used as an effective method for the treatment of patients with ischemic stroke．The coagulation function, balance, extremity function and muscle strength were significantly improved after combined treatment, which indicated that the combined treatment was especially effective in relieving the patients’ symptoms．

目的 探讨作业疗法结合经皮神经电刺激对脑卒中后肩痛的疗效。方法 选取2020年6月—2023年6月在肇庆市第一人民医院治疗的60例脑卒中后肩痛患者为研究对象,随机分为观察组和对照组各30例。其中,观察组进行作业疗法结合经皮神经电刺激;对照组单纯进行作业疗法。记录患者治疗前及治疗4周后的视觉模拟疼痛评分（VAS）,改良Barthel指数（MBI）和汉密顿抑郁量表评分（HAMD）,并对记录进行检验和t检验。结果 观察组和对照组的治疗效果比较差异有统计学意义（P=0.019）,观察组治疗有效率（93.33%）高于对照组（63.33%）;治疗前两组患者的VAS（P=0.536）和HAMD（P=0.558）分值比较差异无统计学意义,治疗后其VAS（P=0.049）及HAMD（P=0.023）分值均较治疗前下降,且观察组下降幅度分别为（2.23±1.14）分和（4.47±3.06）分,均高于对照组的（1.27±0.98）和（1.33±1.35）,组间比较差异有统计学意义;治疗前两组患者的MBI分值比较差异无统计学意义（P=0.216）,治疗后其MBI分值均较治疗前提高,且观察组提高幅度（21.87±10.25）较对照组（12.00±13.58）更显著,组间比较差异有统计学意义（P=0.003）。结论 作业疗法结合经皮神经电刺激可缓解脑卒中肩痛,改善患者日常生活能力和心理精神状态,减少抑郁的发生。

Objective To explore the therapeutic effect of occupational therapy combined with transcutaneous electrical nerve stimulation（TENS） on shoulder pain after stroke．Methods Sixty patients with post-stroke shoulder pain who were treated in the First People’s Hospital of Zhaoqing from June 2020 to June 2023 were selected as the study subjects and randomly divided into an observation group and a control group,with 30 cases in each group．Among them,the observation group received occupational therapy combined with TENS,while the control group received occupational therapy alone．This study recorded the Visual Analogue Scale（VAS）,modified Barthel Index（MBI）,and Hamilton Depression Rating Scale（HAMD）of patients before and after 4 weeks of treatment,and conducted the and t-test analysis．Results The test analysis showed a significant difference in treatment effectiveness between the observation group and the control group（P=0.019）,with the observation group having a significantly higher treatment effectiveness rate（93.33%）than the control group（63.33%）;t-test analysis showed that there was no statistically significant difference in VAS（P=0.536）and HAMD（P=0.558）indicators between the two groups of patients before treatment．However,after treatment,the VAS（P=0.049）and HAMD（P=0.023）indicators decreased compared to before treatment．The observation group had decreased（2.23±1.14）and（4.47±3.06）,respectively,which were significantly higher than the control group’s（1.27±0.98）and（1.33±1.35）,and the inter group differences were statistically significant;before treatment,there was no statistically significant difference in MBI indicators between the two groups of patients（P=0.216）．After treatment,their MBI indicators increased compared to before treatment,and the observation group（21.87±10.25）showed a more significant improvement compared to the control group（12.00±13.58）．The difference between the groups was statistically significant（P=0.003）．Conclusions Occupational therapy combined with TENS can significantly alleviate shoulder pain after stroke,improve daily living ability and psychological state of patients,and reduce the occurrence of depression．

目的 探讨载脂蛋白E（ApoE）基因多态性与卒中后认知障碍的相关性,即大动脉粥样硬化型脑梗塞的严重程度。方法 采用病例——对照研究的方法,收集九江学院附属医院神经内科的100例急性缺血性脑卒中且病因分型为大动脉粥样硬化型患者（脑梗死组）和50例性别、年龄匹配的非缺血性脑卒中患者（对照组）。检测患者的 ApoE 基因型、血脂、美国国立卫生院卒中量表（NIHSS）、卒中后6个月简易智力状态检查量表（MMSE）等,采用多因素方差分析等统计学方法分析他们之间的关联性。结果 ApoE 3/4基因型频率与Ɛ3、Ɛ4等位基因频率,在脑梗死组别中高于对照组（P<0.05）。同时,携带Ɛ3等位基因患者的低密度脂蛋白水平高于携带Ɛ2、Ɛ4等位基因的患者;进一步分析发现含Ɛ3等位基因的脑梗死患者NIHSS评分更高、卒中后认知障碍更严重（P<0.05）。结论 ApoE基因型为Ɛ3/4、等位基因Ɛ3、Ɛ4更易罹患大动脉粥样硬化型脑梗死,提示该基因型是脑梗死的易感基因,脑梗死后认知障碍患者Ɛ3等位基因的频率较高,可能是卒中后认知障碍的易感因素。

Objective To explore the relationship between ApoE gene polymorphisms and post-stroke cognitive impairment,the severity of large artery atherosclerotic cerebral infarction．Methods A case-control research study was conducted,gathering data from 100 individuals diagnosed with large artery atherosclerotic cerebral infarction according to the TOAST classification,who admitted to the Neurology Department of the Affiliated Hospital of Jiujiang University．Additionally,50 non-ischemic stroke patients,matched for gender and age,were included as the control group．The patients were assessed for ApoE genotype,blood lipid,NIHSS,and MMSE scale at 6 months post-stroke,and statistical methods were used to analyze their associations．Results Significant differences were observed in the ApoE 3/4 genotype frequency and Ɛ3、Ɛ4 allele frequency between patients with cerebral infarction and the control group,with a notably higher incidence of cerebral infarction in the former．Furthermore,patients carrying the Ɛ3 allele exhibited significantly higher LDL levels than those carrying Ɛ2 or Ɛ4．The analysis also revealed that patients with the Ɛ4 allele experienced higher NIHSS and severer post-stroke cognitive impairment．Conclusions The findings suggest that the ApoE genotype Ɛ3/4 and allele Ɛ3、Ɛ4 may predispose individuals to develop large atherosclerotic cerebral infarction,indicating a susceptibility gene for cerebral infarction．Additionally,the Ɛ3 allele was associated with a higher frequency of cognitive deficits after cerebral infarction,implying that it may be a predisposing factor for post-stroke cognitive impairment．

目的 本研究以脑卒中患者为研究对象,通过二代Illumina高通量测序平台对患者的粪便标本进行微生物群落多样性测序。选择物种丰度≥30%的24个门类（Phylum）作为肠道菌群的研究指标,进而研究肠道菌群与脑卒后抑郁（PSD）之间的相关关系。方法 以40位脑卒中患者的24个门类作为特征变量,抑郁组和对照组为二分类目标变量,建立以Logistic回归、随机森林、支持向量机和AdaBoost为基模型的Stacking分类模型。主成分分析方法作为该模型的特征选择方法选择恰当的主成分进行模型训练,通过二分类评价报告（precision、recall、f1-score）、ROC曲线和混淆矩阵等评价指标对其性能进行评价。结果 （1）通过差异性检验分析了两组（抑郁组和对照组）的基线一致（P<0.05）;（2）从Stacking模型融合的角度定量分析了影响脑卒中后抑郁情绪的具体肠道菌群。研究结果可知,放线菌门、拟杆菌门、变形菌门和酸杆菌门在PSD患者中均增加（P<0.001）;厚壁菌门,疣微菌门,绿弯菌门和软壁菌门在PSD患者中降低（P<0.001）。结论 以上菌群是影响脑卒中后抑郁患者情绪的主要影响因素,因此,在临床上通过恰当干预肠道菌群的变化来调节脑卒中后抑郁患者的抑郁水平,这为脑卒中后抑郁情绪的诊断和治疗方案提供科学依据。

Objective In this study,patients with stroke were selected as the research object,and the microbial community diversity of patients' stool samples was sequenced by the second-generation Illumina high-throughput sequencing platform． Twenty four phylum species with 30% species abundance were selected as indicators for the study of gut microbiota,and then the correlation between gut microbiota and post-stroke depression（PSD） was studied．Methods Taking 24 categories of 40 stroke patients as characteristic variables,depression group and control group as dichotomous target variables,a stacking classification model based on Logistic regression,random forest,support vector machine and AdaBoost was established．As the feature selection method of the model,principal component analysis selects the appropriate principal components for model training,and evaluates its performance through dichotomous evaluation reports（precision,recall,f1 score）,ROC curve and confusion matrix．Results The baseline of the two groups（depression group and control group）was consistent（P<0.05）through the difference test．From the perspective of stacking model fusion,the specific intestinal flora affecting post-stroke depression was quantitatively analyzed．The results showed that Actinobacteria,Bacteroidetes,Proteobacteria and Acidobacteria were significantly increased in PSD patients（P<0.001）,while Firmicutes,Verrucomicrobia,Chloroflexi and Tenericutes were significantly decreased in PSD patients（P<0.001）．Conclusions The above microbiota are the main factors affecting the mood of patients with post-stroke depression．Therefore,in clinical practice,we can adjust the depression level of patients with post-stroke depression by properly intervening the changes of intestinal microbiota,which provides a scientific basis for the diagnosis and treatment of PSD．