Acute myocardial infarction

急性心肌梗死
  • 文章类型: Journal Article
    急性心肌梗死(AMI)并发心源性休克(CS)具有很高的死亡风险。炎症和营养参与AMI和CS的发病和预后。晚期肺癌炎症指数比(ALI)结合了炎症和营养状况。本研究旨在探讨ALI在AMI后CS患者中的预后价值。
    总共,根据ALI入院截止值将217例AMI并发CS患者分为两组:≤12.69和>12.69。这项研究的主要终点是30天全因死亡率。次要终点是消化道出血和主要不良心血管事件(MACE),包括30天全因死亡率,房室传导阻滞,室性心动过速/心室颤动,和非致命性中风.通过Cox回归分析分析ALI与研究终点的关联。
    在入院后的30天随访期内,104例(47.9%)患者死亡,150例(69.1%)患者发生MACE。Kaplan-Meier分析显示,与高ALI组相比,低ALI组的累积死亡率显著较高,MACE发生率显著较低(两者的log-rankp<0.001)。与ALI>12.69相比,ALI≤12.69的患者30天死亡率明显更高(72.1%vs.22.6%;p<0.001)。此外,ALI≤12.69患者的MACEs发生率较高(85.6%vs.51.9%;p<0.001)。受试者工作曲线显示ALI具有适度的预测值(曲线下面积[AUC]:0.789,95%置信区间[CI]:0.729,0.850)。经过多变量调整后,ALI≤12.69是30天全因死亡率(风险比[HR]:3.327;95%CI:2.053,5.389;p<0.001)和30天MACE(HR:2.250;95%CI1.553,3.260;p<0.001)的独立预测因子。此外,在包含临床和实验室数据的基础模型中加入ALI,在统计学上提高了预测价值.
    入院时评估ALI水平可以为AMI并发CS患者的短期预后评估提供重要信息。较低的ALI可能是30天全因死亡率和MACE增加的独立预测因子。
    UNASSIGNED: Acute myocardial infarction (AMI) complicated by cardiogenic shock (CS) carries a high mortality risk. Inflammation and nutrition are involved in the pathogenesis and prognosis of both AMI and CS. The advanced lung cancer inflammation index ratio (ALI) combines the inflammatory and nutritional status. Our present study aimed to explore the prognostic value of ALI in patients with CS following AMI.
    UNASSIGNED: In total, 217 consecutive patients with AMI complicated by CS were divided into two groups based on the ALI admissions cut-off: ≤ 12.69 and > 12.69. The primary endpoint of this study was 30-day all-cause mortality. The secondary endpoints were gastrointestinal hemorrhage and major adverse cardiovascular events (MACEs), including 30-day all-cause mortality, atrioventricular block, ventricular tachycardia/ventricular fibrillation, and nonfatal stroke. The association of ALI with the study endpoints was analyzed by Cox regression analysis.
    UNASSIGNED: During the 30-day follow-up period after admission, 104 (47.9%) patients died and 150 (69.1%) suffered MACEs. The Kaplan-Meier analysis revealed significantly higher cumulative mortality and lower MACE rates in the low-ALI group compared to the high-ALI group (both log-rank p < 0.001). The 30-day mortality rate was significantly higher in patients with ALI ≤ 12.69 compared to ALI > 12.69 (72.1% vs. 22.6%; p < 0.001). Furthermore, the incidence of MACEs was higher in patients with ALI ≤ 12.69 (85.6% vs. 51.9%; p < 0.001). The receiver operating curve showed that ALI had a modest predictive value (area under the curve [AUC]: 0.789, 95% confidence interval [CI]: 0.729, 0.850). After multivariable adjustment, ALI ≤ 12.69 was an independent predictor for both 30-day all-cause mortality (hazard ratio [HR]: 3.327; 95% CI: 2.053, 5.389; p < 0.001) and 30-day MACEs (HR: 2.250; 95% CI 1.553, 3.260; p < 0.001). Furthermore, the addition of ALI to a base model containing clinical and laboratory data statistically improved the predictive value.
    UNASSIGNED: Assessing ALI levels upon admission can provide important information for the short-term prognostic assessment of patients with AMI complicated by CS. A lower ALI may serve as an independent predictor of increased 30-day all-cause mortality and MACEs.
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  • 文章类型: Journal Article
    本研究的目的是探讨中老年急性心肌梗死(AMI)患者的甘油三酯-葡萄糖-体重指数(TyG-BMI)与各种颈动脉斑块特征之间的相关性。
    对开封市中心医院心内科住院的380例AMI患者进行了回顾性研究。根据颈动脉超声检查结果,患者分为稳定斑块组和不稳定斑块组。此外,建立了一个由380名健康个体组成的对照组,这些个体在同一时间段内访问了医院的体检中心。从所有参与者收集空腹静脉血样本以测量血糖和甘油三酯。使用公式Ln[空腹甘油三酯(mg/dL)×空腹血糖(mg/dL)/2]×BMI计算基线TyG-BMI指数。分析不同斑块组与TyG-BMI指数的相关性。
    不稳定斑块组的TyG-BMI指数明显高于稳定斑块组,值分别为252.81±29.99和201.92±28.72(P=0.034)。Spearman相关分析显示,AMI患者颈动脉斑块不稳定性与TyG-BMI指数呈正相关(r=0.521,P=0.003)。Logistic回归分析显示,TyG-BMI指数是AMI患者颈动脉不稳定斑块的重要危险因素(OR=2.691,95%CI:1.169~4.123)。
    这项研究的结果表明,升高的TyG-BMI指数会显著增加AMI患者颈动脉不稳定斑块的风险,使其成为颈动脉斑块不稳定的重要危险因素。
    UNASSIGNED: The aim of this study is to investigate the correlation between the triglyceride-glucose-body mass index (TyG-BMI) and the characteristics of various carotid plaques in middle-aged and elderly patients with acute myocardial infarction (AMI).
    UNASSIGNED: A retrospective study was conducted on 380 patients with AMI hospitalized in the Cardiology Department of Kaifeng Central Hospital. Based on carotid ultrasound results, patients were divided into the following two groups: the stable plaque group and the unstable plaque group. Additionally, a control group comprising 380 healthy individuals visiting the hospital\'s physical examination center during the same timeframe was established. Fasting venous blood samples were collected from all participants to measure blood glucose and triglyceride. The baseline TyG-BMI index was calculated using the formula Ln [fasting triglyceride (mg/dL)×fasting blood glucose (mg/dL)/2]×BMI. The correlation between different plaque groups and the TyG-BMI index was analyzed.
    UNASSIGNED: The TyG-BMI index was significantly higher in the unstable plaque group compared to the stable plaque group, with values of 252.81±29.99 and 201.92±28.72, respectively (P = 0.034). Spearman\'s correlation analysis showed a positive correlation between the instability of carotid plaques and the TyG-BMI index in patients with AMI (r = 0.521, P = 0.003). Logistic regression analysis indicated that the TyG-BMI index was an important risk factor for unstable carotid plaques in patients with AMI (OR = 2.691, 95% CI: 1.169-4.123).
    UNASSIGNED: The findings of this study suggest that an elevated TyG-BMI index significantly increases the risk of unstable carotid plaques in patients with AMI, making it an important risk factor for carotid plaque instability.
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  • 文章类型: Journal Article
    背景:心肌梗死经皮冠状动脉介入治疗(PCI)后支架贴壁不良(SM)仍然存在重大的临床挑战。近年来,机器学习(ML)模型在疾病风险分层和预测建模中显示出潜力。
    目的:基于光学相干断层扫描(OCT)成像的ML模型,实验室测试,临床特征可以预测SM的发生。
    方法:我们研究了遵义医学院附属医院337例患者,中国,2023年5月至10月接受PCI和冠状动脉OCT的患者。我们采用嵌套交叉验证将患者分为训练集和测试集。我们开发了五种ML模型:XGBoost,LR,射频,SVM,和基于钙化特征的NB。使用ROC曲线评估性能。Lasso回归从46个临床特征和21个OCT成像特征中选择特征,用五种ML算法进行了优化。
    结果:在基于钙化特征的预测模型中,XGBoost模型和SVM模型表现出更高的AUC值。Lasso回归从临床和成像数据中确定了五个关键特征。将选定的特征合并到模型中进行优化后,所有算法模型的AUC值均有显著改善.XGBoost模型显示出最高的校准精度。SHAP值显示,影响XGBoost模型的前五名特征是钙化长度,年龄,冠状动脉夹层,脂质角,和肌钙蛋白.
    结论:使用斑块成像特征和临床特征建立的ML模型可以预测SM的发生。基于临床和影像学特征的ML模型表现出更好的性能。
    BACKGROUND: Stent malapposition (SM) following percutaneous coronary intervention (PCI) for myocardial infarction continues to present significant clinical challenges. In recent years, machine learning (ML) models have demonstrated potential in disease risk stratification and predictive modeling.
    OBJECTIVE: ML models based on optical coherence tomography (OCT) imaging, laboratory tests, and clinical characteristics can predict the occurrence of SM.
    METHODS: We studied 337 patients from the Affiliated Hospital of Zunyi Medical University, China, who had PCI and coronary OCT from May to October 2023. We employed nested cross-validation to partition patients into training and test sets. We developed five ML models: XGBoost, LR, RF, SVM, and NB based on calcification features. Performance was assessed using ROC curves. Lasso regression selected features from 46 clinical and 21 OCT imaging features, which were optimized with the five ML algorithms.
    RESULTS: In the prediction model based on calcification features, the XGBoost model and SVM model exhibited higher AUC values. Lasso regression identified five key features from clinical and imaging data. After incorporating selected features into the model for optimization, the AUC values of all algorithmic models showed significant improvements. The XGBoost model demonstrated the highest calibration accuracy. SHAP values revealed that the top five ranked features influencing the XGBoost model were calcification length, age, coronary dissection, lipid angle, and troponin.
    CONCLUSIONS: ML models developed using plaque imaging features and clinical characteristics can predict the occurrence of SM. ML models based on clinical and imaging features exhibited better performance.
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  • 文章类型: Journal Article
    目前,急性心肌梗死(MI)后接受经皮冠状动脉介入治疗(PCI)的患者的标准治疗包括双联抗血小板治疗(DAPT)以及阿司匹林和一种有效的P2Y12受体抑制剂的联合治疗.然而,阿司匹林的潜在益处部分受到部分患者不耐受的限制.吲哚布芬的安全性和有效性,一种替代阿司匹林的抗血小板药物,PCI术后AMI患者的临床研究尚待彻底.这项回顾性研究是在单个中心进行的,并利用了倾向评分匹配。招募时间为2019年1月至2022年6月,纳入PCI后AMI患者。根据出院处方将参与者分为两组:阿司匹林DAPT组和吲哚布芬DAPT组。主要终点集中在净不良临床事件(NACE),定义为复合结果,包括心脏死亡,MI复发,明确或可能的支架血栓形成(ST),靶病变血运重建(TLR),缺血性卒中和出血学术研究联盟(BARC)标准类型2、3或5.所有患者均接受了一年的随访。本研究共纳入1451例患者,258人被分配到吲哚布芬DAPT组,1193人被分配到阿司匹林DAPT组。在1:1倾向得分匹配之后,每组保留224名患者。在IndobufenDAPT组中,58人(25.9%)在一年内经历了主要终点,与阿司匹林DAPT组52例(23.2%)相比(HR1.128,95%CI0.776-1.639,p=.527).具体来说,在疗效终点(MACCE,20.1%vs.14.7%,HR1.392,95%CI0.893-2.170,p=.146)或安全终点(BARC2,3或5,8.04%与10.30%,HR0.779,p=.427)。这些发现在1、3或6个月时保持一致。此外,与阿司匹林DAPT组相比,吲哚布芬DAPT组的胃肠道症状发生率显着降低(7.1%vs.14.3%,p=.022)。我们的研究表明,吲哚布芬在中国AMI患者PCI术后的疗效和安全性与阿司匹林相当。鉴于吲哚布芬在缓解胃肠道症状方面的潜在优势,我们建议将其作为不耐受阿司匹林的个体的可行替代方案。
    上下文是什么?目前,对于急性心肌梗死后接受经皮冠状动脉介入治疗的患者,标准治疗包括联合使用阿司匹林和强效P2Y12受体抑制剂的双重抗血小板治疗.然而,阿司匹林的潜在益处部分受到部分患者不耐受的限制.吲哚布芬的安全性和有效性,一种替代阿司匹林的抗血小板药物,PCI术后AMI患者的临床研究尚待彻底.什么是新的?虽然美国和欧洲的临床指南都推荐使用吲哚布芬作为不能耐受阿司匹林的患者的替代疗法,关于这个问题的研究有限。我们的研究首次通过比较吲哚布芬和阿司匹林在AMI患者中的疗效和安全性来解决这一差距。我们的研究表明,吲哚布芬在中国AMI患者PCI术后的疗效和安全性与阿司匹林相当。鉴于吲哚布芬在缓解胃肠道症状方面的潜在优势,我们建议将其作为不耐受阿司匹林的个体的可行替代方案。这些发现可能为进一步探索AMI患者阿司匹林替代品铺平道路。
    Currently, the standard treatment for patients who have undergone percutaneous coronary intervention (PCI) following acute myocardial infarction (MI) involves dual antiplatelet therapy (DAPT) with a combination of aspirin and a potent P2Y12 receptor inhibitor. However, the potential benefits of aspirin were partially constrained by the intolerance of some patients. The safety and efficacy of indobufen, an alternative antiplatelet agents to aspirin, in patients with AMI after PCI are yet to be thoroughly investigated.This retrospective study was conducted at a single center and utilized propensity score matching. The enrollment spanned from January 2019 to June 2022, incorporating patients with AMI after PCI. The participants were categorized into two groups based on discharged prescriptions: the aspirin DAPT group and the indobufen DAPT group. The primary endpoint focused on net adverse clinical event (NACE), defined as a composite outcome, including cardiac death, recurrence of MI, definite or probable stent thrombosis (ST), target lesion revascularization (TLR), ischemic stroke and Bleeding Academic Research Consortium (BARC) criteria type 2, 3, or 5. All the patients underwent a one-year follow-up period.A total of 1451 patients were enrolled in this study, with 258 assigned to the indobufen DAPT group and 1193 to the aspirin DAPT group. Following 1:1 propensity score matching, 224 patients were retained in each group. In the indobufen DAPT group, 58 individuals (25.9%) experienced the primary endpoint within one year, compared to 52 individuals (23.2%) in the aspirin DAPT group (HR 1.128, 95% CI 0.776-1.639, p = .527). Specifically, no significant differences were observed in either the efficacy endpoint (MACCE, 20.1% vs. 14.7%, HR 1.392, 95% CI 0.893-2.170, p = .146) or the safety endpoint (BARC 2,3 or 5, 8.04% vs. 10.30%, HR 0.779, p = .427). These findings remained consistent at 1, 3, or 6 months. Additionally, the incidence of gastrointestinal symptoms were significantly lower in indobufen DAPT group compared to the aspirin DAPT group (7.1% vs. 14.3%, p = .022).Our research reveals that the efficacy and safety of indobufen are comparable to aspirin in Chinese patients with AMI following PCI. Given the potential advantages of indobufen in alleviating gastrointestinal symptoms, we propose it as a viable alternative for individuals intolerant to aspirin.
    What is the context? Currently, the standard treatment for patients who have undergone percutaneous coronary intervention following acute myocardial infarction involves dual antiplatelet therapy with a combination of aspirin and a potent P2Y12 receptor inhibitor.However, the potential benefits of aspirin were partially constrained by the intolerance of some patients.The safety and efficacy of indobufen, an alternative antiplatelet agents to aspirin, in patients with AMI after PCI are yet to be thoroughly investigated.What is new? While both American and European clinical guidelines recommend the use of indobufen as an alternative treatment for patients who cannot tolerate aspirin, there exists a limited body of research on this subject.Our research is the first to address this gap by comparing the efficacy and safety of indobufen and aspirin in patients with AMI.Our research reveals that the efficacy and safety of indobufen are comparable to aspirin in Chinese patients with AMI following PCI. Given the potential advantages of indobufen in alleviating gastrointestinal symptoms, we propose it as a viable alternative for individuals intolerant to aspirin.What is the impact? These findings might pave the way for further exploration of alternatives to aspirin in patients with AMI.
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  • 文章类型: Journal Article
    目的:评估将行动研究理论与解决焦点的短期心理治疗相结合对心理压力的影响,调整,急性心肌梗死(AMI)患者经皮冠状动脉介入治疗(PCI)后的康复。
    方法:在2022年1月至2023年1月之间,在协和医院进行了一项涉及300名AMI患者的前瞻性研究。同济医学院,华中科技大学.参与者被分为对照组和研究组,每人150名患者。对照组给予规范治疗和康复指导,同时,研究组还接受了基于行动研究理论和解决焦点的短期心理治疗的干预措施。测量的结果包括汉密尔顿焦虑量表(HAMA)的得分,汉密尔顿抑郁量表(HAMD),心理健康量表(MHI),美国国立卫生研究院卒中量表(NIHSS),Fugl-Meyer评估(FMA),照顾者评估基本技能(ESCA),患者满意度。还分析了预后因素。
    结果:干预后,研究组在HAMA和HAMD中表现出明显较低的得分,并且报告了较少的心理疼痛,在心理健康方面得分更高,与对照组比较(均P<0.05)。此外,研究组患者神经功能(NIHSS评分)、运动技能(FMA评分)改善,自理能力增强(ESCA评分较高)(均P<0.05)。研究组患者满意度明显高于对照组(P<0.05)。关键预后因素包括糖尿病病史,Killip分类,和门到气球(DTB)时间。
    结论:行动研究理论与聚焦解决短期心理治疗相结合,可显著缓解AMI患者PCI术后焦虑和抑郁情绪,增强其心理调适,促进神经和运动功能的恢复。这种方法也提高了自我护理能力。有效管理基本条件,警惕监控Killip分类,和最小化DTB时间对于减少主要不良心脏事件和改善患者预后至关重要。
    OBJECTIVE: To evaluate the impact of combining action research theory with focus-solving short-term psychotherapy on the psychological stress, adjustment, and rehabilitation of patients with acute myocardial infarction (AMI) following percutaneous coronary intervention (PCI).
    METHODS: Between January 2022 and January 2023, a prospective study was conducted involving 300 AMI patients at Union Hospital, Tongji Medical College, Huazhong University of Science and Technology. Participants were divided into a control group and a study group, with 150 patients in each. The control group received standard treatment and rehabilitation guidance, while the study group also received interventions based on action research theory and focus-solving short-term psychotherapy. Outcomes measured included scores from the Hamilton Anxiety Scale (HAMA), Hamilton Depression Scale (HAMD), Mental Health Inventory (MHI), National Institutes of Health Stroke Scale (NIHSS), Fugl-Meyer Assessment (FMA), Essential Skills for Caregivers Assessment (ESCA), and patient satisfaction. Prognostic factors were also analyzed.
    RESULTS: Post-intervention, the study group demonstrated significantly lower scores in HAMA and HAMD and reported less psychological pain, alongside higher scores in psychological well-being, compared to the control group (all P < 0.05). Additionally, the study group showed improved neurological function (NIHSS scores) and motor skills (FMA scores) as well as enhanced self-care abilities (higher ESCA scores) (all P < 0.05). Patient satisfaction was also notably higher in the study group (P < 0.05). Key prognostic factors included history of diabetes, Killip classification, and door-to-balloon (DTB) time.
    CONCLUSIONS: The integration of action research theory with focus-solving short-term psychotherapy significantly alleviated anxiety and depression in AMI patients post-PCI, enhanced their psychological adjustment, and facilitated the recovery of neurological and motor functions. This approach also improved self-care capabilities. Effective management of underlying conditions, vigilant monitoring of Killip classification, and minimization of DTB time are critical to reducing major adverse cardiac events and improving patient outcomes.
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  • 文章类型: Journal Article
    目的:分析脂蛋白相关磷脂酶A2(Lp-PLA2)的预测价值,N末端脑钠肽原激素(NT-proBNP),以及急性心肌梗死(AMI)患者早发性梗死后心力衰竭(HF)的初始诊断时的外周血相关比率。
    方法:本回顾性分析纳入咸阳市中心医院2020年2月至2023年2月首次诊断为AMI的151例患者。患者分为两组:住院期间发生HF的患者(HF组,n=45)和那些没有(非HF组,NHF,n=106)。Lp-PLA2、NT-proBNP、两组之间比较了初始诊断时的外周血比率。二元logistic回归用于确定HF的独立危险因素,并根据这些因素建立了列线图模型。
    结果:HR(P=0.032),C反应蛋白(CRP)(P<0.001),丙氨酸转氨酶(ALT)(P=0.015),冠状动脉病变评分(CALDS)(P<0.001),D-二聚体(D-D)(P=0.021),中性粒细胞与淋巴细胞比率(NLR)(P<0.001),Lp-PLA2(P<0.001),HF组NT-proBNP(P<0.001)明显高于NHF组。HF组左心室收缩末期内径(LVESD)(P<0.001)和左心室舒张末期内径(LVEDD)(P<0.001)明显较低。多因素logistic回归确定了HR(P=0.034),CRP(P=0.028),CALDS(P=0.007),NLR(P=0.001),Lp-PLA2(P=0.001),NT-proBNP(P=0.002)是HF的独立预测因子。NLR的AUC,Lp-PLA2和NT-proBNP分别为0.806、0.849和0.780。列线图模型的AUC为0.964,根据德隆检验,显著优于个别指标,突出了其优越的预测功效。
    结论:HR,CRP,CALDS,NLR,Lp-PLA2和NT-proBNP被确定为AMI后HR的独立预测因子。构建的列线图模型为早期临床识别高危患者提供了有效的工具,可能改善预后并指导治疗策略。
    OBJECTIVE: To analyze the predictive value of lipoprotein-associated phospholipase A2 (Lp-PLA2), N-terminal prohormone of brain natriuretic peptide (NT-proBNP), and peripheral blood-related ratios at the initial diagnosis for heart failure (HF) after early-onset infarction in patients with acute myocardial infarction (AMI).
    METHODS: This retrospective analysis included 151 patients first diagnosed with AMI at Xianyang Central Hospital from February 2020 to February 2023. Patients were classified into two groups: those who developed HF during hospitalization (HF group, n=45) and those who did not (non-HF group, NHF, n=106). Differences in Lp-PLA2, NT-proBNP, and peripheral blood ratios at initial diagnosis were compared between the groups. Binary logistic regression was used to identify independent risk factors for HF, and a nomogram model was developed based on these factors.
    RESULTS: HR (P=0.032), C-reactive protein (CRP) (P<0.001), alanine aminotransferase (ALT) (P=0.015), coronary artery lesion score (CALDS) (P<0.001), D-dimer (D-D) (P=0.021), neutrophil-to-lymphocyte ratio (NLR) (P<0.001), Lp-PLA2 (P<0.001), and NT-proBNP (P<0.001) were significantly higher in the HF group than in the NHF group. Left ventricular end-systolic diameter (LVESD) (P<0.001) and left ventricular end-diastolic diameter (LVEDD) (P<0.001) were significantly lower in the HF group. Multifactorial logistic regression identified HR (P=0.034), CRP (P=0.028), CALDS (P=0.007), NLR (P=0.001), Lp-PLA2 (P=0.001), and NT-proBNP (P=0.002) as independent predictors of HF. The AUCs for NLR, Lp-PLA2, and NT-proBNP were 0.806, 0.849, and 0.780, respectively. The nomogram model achieved an AUC of 0.964, significantly outperforming individual indicators per Delong\'s test, highlighting its superior predictive efficacy.
    CONCLUSIONS: HR, CRP, CALDS, NLR, Lp-PLA2, and NT-proBNP were identified as independent predictors of HR post-AMI myocardial infarction. The constructed nomogram model provides an effective tool for early clinical identification of high-risk patients, potentially improving prognosis and guiding therapeutic strategies.
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  • 文章类型: Journal Article
    背景:冠心病和2型糖尿病(T2DM)经常共存,创造一个复杂而具有挑战性的临床场景,特别是并发急性心肌梗死(AMI)时。
    目的:观察达格列净联合萨库巴曲缬沙坦片对心肌微灌注的影响。
    方法:总共,98例患者分为对照组(n=47)和观察组(n=51)。对照组接受noxital,观察组给予达格列净联合诺瑟尔治疗6个月。心肌微灌注的变化,血糖水平,心功能,N末端脑钠肽原(NT-proBNP)水平,生长分化因子-15(GDF-15)水平,比较两组的其他相关因素。此外,计算主要不良心血管事件(MACE)和不良反应的发生率.
    结果:治疗后,观察组和对照组,校正后的心肌梗死溶栓帧数分别为37.12±5.02和48.23±4.66。NT-proBNP水平分别为1502.65±255.87和2015.23±286.31pg/mL,N末端前心房利钠肽(NT-proANP)水平分别为1415.69±213.05和1875.52±241.02ng/mL,GDF-15水平为0.87±0.43和1.21±0.56g/L,高敏C反应蛋白(hs-CRP)水平分别为6.54±1.56和8.77±1.94mg/L,分别,差异具有统计学意义(P<0.05)。观察组的MACEs累积发生率明显低于对照组(P<0.05)。观察组不良反应发生率为13.73%(7/51),对照组不良反应发生率为10.64%(5/47)。差异无统计学意义(P>0.05)。
    结论:达格列净联合诺康宁可改善AMI后心力衰竭和T2DM患者心肌微灌注和左心室重构,降低MACE发生率。潜在的机制可能与降低NT-proANP的表达水平有关。GDF-15和hs-CRP。
    BACKGROUND: Coronary heart disease and type 2 diabetes mellitus (T2DM) frequently coexist, creating a complex and challenging clinical scenario, particularly when complicated with acute myocardial infarction (AMI).
    OBJECTIVE: To examine the effects of dapagliflozin combined with sakubactrovalsartan sodium tablets on myocardial microperfusion.
    METHODS: In total, 98 patients were categorized into control (n = 47) and observation (n = 51) groups. The control group received noxital, while the observation group was treated with dapagliflozin combined with noxital for 6 months. Changes in myocardial microperfusion, blood glucose level, cardiac function, N-terminal prohormone of brain natriuretic peptide (NT-proBNP) level, growth differentiation factor-15 (GDF-15) level, and other related factors were compared between the two groups. Additionally, the incidence of major adverse cardiovascular events (MACE) and adverse reactions were calculated.
    RESULTS: After treatment, in the observation and control groups, the corrected thrombolysis in myocardial infarction frame counts were 37.12 ± 5.02 and 48.23 ± 4.66, respectively. The NT-proBNP levels were 1502.65 ± 255.87 and 2015.23 ± 286.31 pg/mL, the N-terminal pro-atrial natriuretic peptide (NT-proANP) levels were 1415.69 ± 213.05 and 1875.52 ± 241.02 ng/mL, the GDF-15 levels were 0.87 ± 0.43 and 1.21 ± 0.56 g/L, and the high-sensitivity C-reactive protein (hs-CRP) levels were 6.54 ± 1.56 and 8.77 ± 1.94 mg/L, respectively, with statistically significant differences (P < 0.05). The cumulative incidence of MACEs in the observation group was significantly lower than that in the control group (P < 0.05). The incidence of adverse reactions was 13.73% (7/51) in the observation group and 10.64% (5/47) in the control group, with no statistically significant difference (P > 0.05).
    CONCLUSIONS: Dapagliflozin combined with nocinto can improve myocardial microperfusion and left ventricular remodeling and reduce MACE incidence in patients with post-AMI heart failure and T2DM. The underlying mechanism may be related to the reduction in the expression levels of NT-proANP, GDF-15, and hs-CRP.
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  • 文章类型: Journal Article
    背景:急性心肌梗死(AMI)是一种威胁生命的事件,与RNA修饰和程序性细胞死亡(PCD)有关。本研究试图研究含锌指CCCH结构域蛋白13(ZC3H13)介导的N6-甲基腺苷(m6A)对AMI铁凋亡的影响。
    方法:评估梗死面积和心功能,在异丙肾上腺素诱导的AMI大鼠中测定ZC3H13的表达水平。同时,氧葡萄糖剥夺(OGD)体外模型的诱导,研究炎症的变化,氧化应激和铁死亡。用生物信息学方法预测ZC3H13修饰的lncRNA93358的m6A修饰位点,ZC3H13和lncRNA93358之间的相互作用使用双荧光素酶报告基因测定进行验证。ZC3H13被过表达,lncRNA93358被沉默以研究它们在细胞死亡中的调节作用,炎症,AMI中的氧化应激和铁凋亡。
    结果:在AMI大鼠中观察到ZC3H13的表达显著降低,心脏功能受损,增强的炎症和氧化应激。ZC3H13靶向lncRNA93358的修饰位点GGACC并下调lncRNA93358。沉默lncRNA93358抑制细胞死亡,降低炎症细胞因子肿瘤坏死因子(TNF)-α的水平,白细胞介素(IL)-6和IL-1β,抑制氧化应激相关指标(乳酸脱氢酶(LDH),活性氧(ROS),谷胱甘肽(GSH)和丙二醛(MDA),以及下调的铁凋亡相关的酰基辅酶A合成酶长链家族成员4(ACSL4),前列腺素-内过氧化物合酶2(PTGS2)和谷胱甘肽过氧化物酶4(GPX4)。沉默IncRNA93358的作用通过ZC3H13的过表达进一步增强。
    结论:这项研究揭示了ZC3H13介导的靶向lncRNA93358的表观遗传RNA修饰,并表明ZC3H13过表达可能是AMI治疗的有希望的方法。
    BACKGROUND: Acute myocardial infarction (AMI) is a life-threatening event that is associated with RNA modification and programmed cell death (PCD). This study attempted to investigate the impacts of zinc finger CCCH domain-containing protein 13 (ZC3H13)-mediated N6-methyladenosine (m6A) on ferroptosis in AMI.
    METHODS: The infarcted areas and cardiac function were evaluated, and the expression level of ZC3H13 was measured in AMI rats that were induced by isoproterenol. Meanwhile, oxygen glucose deprivation (OGD) in vitro model was induced to investigate the alterations on inflammation, oxidative stress and ferroptosis. The m6A modification site of lncRNA93358 modified by ZC3H13 was predicted using bioinformatics, and the interaction between ZC3H13 and lncRNA93358 was verified using the dual-luciferase reporter assays. ZC3H13 was overexpressed and lncRNA93358 was silenced to study their regulatory role in cell death, inflammation, oxidative stress and ferroptosis in AMI.
    RESULTS: Significant decreased expression of ZC3H13 was observed in AMI rats, with impaired cardiac function, enhanced inflammation and oxidative stress. ZC3H13 targeted the modification site GGACC of lncRNA93358 and downregulated lncRNA93358. Silencing lncRNA93358 inhibited cell death, reduced the levels of inflammatory cytokines tumor necrosis factor (TNF)-α, interleukin (IL)-6 and IL-1β, suppressed oxidative stress-related indicators (lactate dehydrogenase (LDH), reactive oxygen species (ROS), glutathione (GSH) and malondialdehyde (MDA), as well as downregulated ferroptosis-related acyl-CoA synthetase long chain family member 4 (ACSL4), prostaglandin-endoperoxide synthase 2 (PTGS2) and glutathione peroxidase 4 (GPX4). The effect of silencing lncRNA93358 was further enhanced by overexpression of ZC3H13.
    CONCLUSIONS: This study reveals the ZC3H13-mediated epigenetic RNA modification targeting lncRNA93358 and suggests that ZC3H13 overexpression may be a promising approach for AMI treatment.
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  • 文章类型: Journal Article
    背景:急性心肌梗死(AMI)是全球死亡的主要原因。线粒体功能障碍是AMI后细胞死亡的关键决定因素。因此,预防线粒体功能障碍是关键的治疗策略。本研究旨在探讨与AMI患者线粒体功能障碍相关的关键基因和靶化合物及其与主要不良心血管事件(MACE)的关系。
    方法:从基因表达综合(GEO)数据集(GSE166780和GSE24519)中鉴定了AMI中差异表达的基因,线粒体相关基因从MitoCarta3.0数据库获得。通过两个基因群的交集,鉴定了AMI中线粒体相关基因。接下来,已鉴定的线粒体相关基因进行了基因本体论(GO)和京都基因和基因组百科全书(KEGG)功能富集分析.构建蛋白质-蛋白质相互作用(PPI)网络,并筛选了关键基因。然后,进行靶向药物筛选和分子对接。使用定量实时聚合酶链反应(qRT-PCR)分析来自AMI患者和健康志愿者的血液样品的关键基因表达。稍后,受试者工作特征(ROC)曲线评估关键基因的诊断价值,单因素和多因素COX分析确定了AMI患者MACE的危险因素和保护因素。
    结果:经过筛选和鉴定,确定了138个线粒体相关基因,主要富含细胞呼吸的过程和途径,氧化还原,线粒体代谢,凋亡,氨基酸和脂肪酸代谢。根据PPI网络,在AMI中获得了5个关键的线粒体相关基因:细胞色素c氧化酶的翻译激活剂I(TACO1),细胞色素c氧化酶亚基Va(COX5A),PTEN诱导的推定激酶1(PINK1),SURF1和NDUFA11。分子对接表明胆酸,N-甲酰甲硫氨酸与COX5A相互作用,烟酰胺腺嘌呤二核苷酸+氢(NADH)和NDUFA11。随后的基础实验表明,AMI患者血液中COX5A和NDUFA11的表达明显低于相应的健康志愿者。合并MACE的AMI患者血液中COX5A和NDUFA11的表达低于无MACE的患者(P<0.01)。ROC分析还显示对COX5A和NDUFA11的高诊断价值[曲线下面积(AUC)>0.85]。就COX结果而言,COX5A,NDUFA11和左心室射血分数(LVEF)是AMI患者MACE的保护因素,而C反应蛋白(CRP)是危险因素。
    结论:COX5A和NDUFA11是AMI中线粒体相关的关键基因,可作为诊断AMI和预测MACE的生物标志物。
    BACKGROUND: Acute myocardial infarction (AMI) is a leading cause of death worldwide. Mitochondrial dysfunction is a key determinant of cell death post-AMI. Preventing mitochondrial dysfunction is thus a key therapeutic strategy. This study aimed to explore key genes and target compounds related to mitochondrial dysfunction in AMI patients and their association with major adverse cardiovascular events (MACE).
    METHODS: Differentially expressed genes in AMI were identified from the Gene Expression Omnibus (GEO) datasets (GSE166780 and GSE24519), and mitochondria-related genes were obtained from MitoCarta3.0 database. By intersection of the two gene groups, mitochondria-related genes in AMI were identified. Next, the identified genes related to mitochondria were subject to Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) functional enrichment analyses. Protein-protein interaction (PPI) network was constructed, and key genes were screened. Then, targeted drug screening and molecular docking were performed. Blood samples from AMI patients and healthy volunteers were analyzed for the key genes expressions using quantitative real time polymerase chain reaction (qRT-PCR). Later, receiver operating characteristic (ROC) curves assessed the diagnostic value of key genes, and univariate and multivariate COX analyses identified risk factors and protective factors for MACE in AMI patients.
    RESULTS: After screening and identification, 138 mitochondria-related genes were identified, mainly enriched in the processes and pathways of cellular respiration, redox, mitochondrial metabolism, apoptosis, amino acid and fatty acid metabolism. According to the PPI network, 5 key mitochondria-related genes in AMI were obtained: translational activator of cytochrome c oxidase I (TACO1), cytochrome c oxidase subunit Va (COX5A), PTEN-induced putative kinase 1 (PINK1), SURF1, and NDUFA11. Molecular docking showed that Cholic Acid, N-Formylmethionine interacted with COX5A, nicotinamide adenine dinucleotide + hydrogen (NADH) and NDUFA11. Subsequent basic experiments revealed that COX5A and NDUFA11 expressions were significantly lower in the blood of patients with AMI than those in the corresponding healthy volunteers; also, AMI patients with MACE had lower COX5A and NDUFA11 expressions in the blood than those without MACE (P < 0.01). ROC analysis also showed high diagnostic value for COX5A and NDUFA11 [area under the curve (AUC) > 0.85]. In terms of COX results, COX5A, NDUFA11 and left ventricular ejection fraction (LVEF) were protective factors for MACE in AMI, while C-reactive protein (CRP) was a risk factor.
    CONCLUSIONS: COX5A and NDUFA11, key mitochondria-related genes in AMI, may be used as biomarkers to diagnose AMI and predict MACE.
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  • 文章类型: Journal Article
    在本文中,我们专注于更新钠-葡萄糖协同转运蛋白抑制剂(SGLTis)的临床研究,用于保留注射部分的2型糖尿病患者心力衰竭,急性心力衰竭,心房颤动,动脉粥样硬化性心血管疾病的一级预防/心血管疾病,和急性心肌梗塞。我们搜索了2020年1月1日至2024年4月6日在PubMed的糖尿病患者中SGLTis的随机对照试验和荟萃分析数据,作为我们的综述。根据我们的审查,某些SGLTis(empagliflozin,dapagliflozin,Canagliflozin,和tofogliflozin),但不是钠-葡萄糖协同转运蛋白1抑制剂(SGLT1i),在治疗上述疾病方面表现出相对优越的临床安全性和有效性。在这些患者中正确使用SGLTis可以促进临床改善并提供替代药物选择。然而,涉及SGLTis治疗某些疾病的临床试验样本量相对较小,简短的干预持续时间,以及基于薄弱证据的结论,需要更多的数据。这些发现对于SGLTis的临床利用和科学探索提供更全面的参考和新的可能性具有重要意义和价值。
    In this paper, we concentrate on updating the clinical research on sodium-glucose cotransporter inhibitors (SGLTis) for patients with type 2 diabetes who have heart failure with a preserved injection fraction, acute heart failure, atrial fibrillation, primary prevention of atherosclerotic cardiovascular disease/cardiovascular disease, and acute myocardial infarction. We searched the data of randomized controlled trials and meta-analyses of SGLTis in patients with diabetes from PubMed between January 1, 2020 and April 6, 2024 for our review. According to our review, certain SGLTis (empagliflozin, dapagliflozin, canagliflozin, and tofogliflozin), but not sodium-glucose cotransporter 1 inhibitor (SGLT1i), exhibit relatively superior clinical safety and effectiveness for treating the abovementioned diseases. Proper utilization of SGLTis in these patients can foster clinical improvement and offer an alternative medication option. However, clinical trials involving SGLTis for certain diseases have relatively small sample sizes, brief intervention durations, and conclusions based on weak evidence, necessitating additional data. These findings are significant and valuable for providing a more comprehensive reference and new possibilities for the clinical utilization and scientific exploration of SGLTis.
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