Acute Myocardial Injury

急性心肌损伤
  • 文章类型: Journal Article
    尽管心肌细胞凋亡加速是心脏损伤的主要原因之一,潜在的机制仍然未知。除了检查比索洛尔和地奥司明对CoCl2引起的心脏损伤的潜在保护作用外,这项研究的目的是确定调节氯化钴(CoCl2)引起的缺氧心脏损伤的潜在机制。从实验的第一天起,除了Cocl214天,为期21天,将大鼠分为以下几组:正常对照组,大鼠仅接受媒介物(2ml/kg/天,p.o.),(Cocl2,150毫克/千克/天,p.o.),比索洛尔(25毫克/千克/天,p.o.);地奥司明(100毫克/千克/天,p.o.)和比索洛尔+地奥司明+Cocl2组。在实验期结束时,血清用于评估心功能,血脂谱,和促炎/抗炎细胞因子。此外,收集组织样本用于评估氧化应激,内皮功能障碍,α-SMA,PKC-α,MiR-143-3P,MAPK,ERK5、MCP-1、CXCR4、Orai-1和STIM-1。地奥司明和比索洛尔,无论是单独还是组合,通过减少心电图异常和CoCl2引起的低血压来增强心脏功能。此外,它们通过下调α-SMA的心脏表达显著改善内皮功能障碍,PKC-α,MiR-143-3P,MAPK,ERK5、MCP-1、CXCR4、Orai-1和STIM-1。比索洛尔和地奥司明产生针对炎症状态的调节活性,氧化还原平衡,和动脉粥样硬化指数同时发生。一起,地奥司明和比索洛尔,无论是单独还是组合,可显着减少CoCl2引起的所有心脏改变。阻碍缺氧诱导的α-SMA的能力,PKC-α,MiR-143-3P/MAPK/MCP-1,MiR-143-3P/ERK5/CXCR4,Orai-1/STIM-1信号激活,以及他们的抗炎,抗氧化剂,和抗凋亡特性,可能是这些心脏保护结果的原因。
    Even while accelerated cardiomyocyte apoptosis is one of the primary causes of cardiac damage, the underlying mechanism is still mostly unknown. In addition to examining potential protective effects of bisoprolol and diosmin against CoCl2-induced cardiac injury, the goal of this study was to identify potential mechanisms regulating the hypoxic cardiac damage caused by cobalt chloride (CoCl2). For a period of 21 days except Cocl2 14 days from the first day of the experiment, rats were split into the following groups: Normal control group, rats received vehicle only (2 ml/kg/day, p.o.), (Cocl2, 150 mg/kg/day, p.o.), bisoprolol (25 mg/kg/day, p.o.); diosmin (100 mg/kg/day, p.o.) and bisoprolol + diosmin + Cocl2 groups. At the end of the experimental period, serum was taken for estimation of cardiac function, lipid profile, and pro/anti-inflammatory cytokines. Moreover, tissue samples were collected for evaluation of oxidative stress, endothelial dysfunction, α-SMA, PKC-α, MiR-143-3P, MAPK, ERK5, MCP-1, CXCR4, Orai-1, and STIM-1. Diosmin and bisoprolol, either alone or in combination, enhance heart function by reducing abnormalities in the electrocardiogram and the hypotension brought on by CoCl2. Additionally, they significantly ameliorate endothelial dysfunction by downregulating the cardiac expressions of α-SMA, PKC-α, MiR-143-3P, MAPK, ERK5, MCP-1, CXCR4, Orai-1, and STIM-1. Bisoprolol and diosmin produced modulatory activity against inflammatory state, redox balance, and atherogenic index concurrently. Together, diosmin and bisoprolol, either alone or in combination, significantly reduced all the cardiac alterations brought on by CoCl2. The capacity to obstruct hypoxia-induced α-SMA, PKC-α, MiR-143-3P/MAPK/MCP-1, MiR-143-3P/ERK5/CXCR4, Orai-1/STIM-1 signaling activation, as well as their anti-inflammatory, antioxidant, and anti-apoptotic properties, may be responsible for these cardio-protective results.
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  • 文章类型: English Abstract
    Elevated high-sensitivity cardiac troponin (hs-cTn) levels should be expected in about half of all patients with acute ischemic stroke (AIS). Since those patients are at risk of increased morbidity and mortality, often attributable to cardiac causes, an adequate work-up of the underlying etiology is required. This can only be achieved by a team of cardiologists and neurologists. Since underlying causes of hs-cTn elevation in AIS patients are diverse, often atypical or silent in their clinical presentation and some, such as an accompanying myocardial infarction, can be acutely life-threatening, the work-up should follow a standardized clinical algorithm. The vast majority of hs-cTn elevations are caused by non-ischemic myocardial injury associated with AIS. This work presents a practice-oriented approach to differential diagnosis with the update of the Mannheim clinical algorithm for acute ischemic stroke and troponin elevation.
    UNASSIGNED: Bei etwa der Hälfte aller Patienten mit akutem ischämischem Schlaganfall (AIS) dürfen erhöhte Werte des hochsensitiven kardialen Troponins (hs-cTn) erwartet werden. Diese Patienten sind von einer erhöhten Morbidität und Mortalität bedroht, die häufig auf eine kardiale Ursache zurückzuführen ist. Daher bedarf es einer adäquaten Aufarbeitung der zugrundeliegenden Ursache, die nur im Team aus Kardiologen und Neurologen gelingen kann. Da die Ursachen vielfältig, in ihrer klinischen Präsentation beim Patienten mit AIS atypisch oder stumm und einige wie ein begleitender Myokardinfarkt akut lebensbedrohlich sein können, sollte die Abklärung einem standardisierten Algorithmus zur Differenzialdiagnostik folgen. Die überwiegende Zahl der hs-cTn-Erhöhungen wird durch nichtischämische Myokardschäden im Zusammenhang mit dem AIS verursacht. Dieser Artikel stellt einen praxisorientierten Ansatz zur Differenzialdiagnostik mit dem Update des Mannheimer Algorithmus zu akutem ischämischem Schlaganfall und Troponinerhöhung vor.
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  • 文章类型: Journal Article
    脂多糖(LPS)被广泛用于建立各种动物模型,包括急性肺损伤模型,心肌细胞损伤,和急性肾损伤。目前,关于LPS引起的疾病的诊断和治疗尚无共识。我们在此介绍了一系列病例,包括四名发生剂量依赖性多器官损伤的患者,包括急性肺损伤和急性肾损伤,在密封室内吸入LPS气体后。这些患者表现出不同程度的多器官损伤,其特征是炎症细胞浸润和促炎细胞因子的分泌。一名患者即使经过积极治疗也表现出进行性症状,导致轻度肺纤维化.这项研究强调了早期诊断和治疗大量LPS暴露的重要性,并提出了管理LPS中毒的个性化治疗方法。
    Lipopolysaccharide (LPS) is widely used to establish various animal models, including models of acute lung injury, cardiomyocyte damage, and acute kidney injury. Currently, there is no consensus on the diagnosis and treatment of LPS-induced disease. We herein present a case series of four patients who developed dose-dependent multi-organ injury, including acute lung injury and acute kidney injury, after inhaling LPS gas in a sealed room. These patients exhibited varying degrees of multi-organ injury characterized by inflammatory cell infiltration and secretion of proinflammatory cytokines. One patient showed progressive symptoms even with active treatment, leading to mild pulmonary fibrosis. This study emphasizes the importance of early diagnosis and treatment of significant LPS exposure and suggests personalized treatment approaches for managing LPS poisoning.
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  • 文章类型: Journal Article
    Acute myocardial injury (AMI) induced by lipopolysaccharide (LPS) can cause cardiovascular dysfunction and lead to death in poultry. Traditional antibiotic therapy has been found to have many limitations and negative effects. Asiatic acid (AA) is a naturally occurring pentacyclic triterpenoid that is extracted from Centella asiatica and has anti-inflammatory, antioxidant, and anticancer pharmacological properties. Previously, we studied the effect of AA on LPS-induced liver and kidney injury; however, the impact of AA on LPS-induced AMI remained unclear. Sixty 1-day-old broilers were randomly divided into control group, LPS group, LPS + AA 15 mg/kg group, LPS + AA 30 mg/kg group, LPS + AA 60 mg/kg group, and control + AA 60 mg/kg group. The histopathology of cardiac tissues was detected by hematoxylin and eosin (H&E) staining. The mRNA and protein expressions related to mitochondrial dynamics and mitophagy were detected by quantitative real-time PCR, western blot, immunofluorescence, and immunohistochemistry. Disorganized myocardial cells and fractured myocardial fibers were found in the LPS group, and obvious red-blood-cell filling can be seen in the gaps between the myocardial fibers in the low-dose AA group. Nevertheless, the medium and high dose of AA obviously attenuated these changes. Our results showed that AA significantly restored the mRNA and protein expressions related to mitochondrial dynamic through further promoting mitophagy. This study revealed the effect of AA on LPS-induced AMI in broilers. Mechanically, AA regulated mitochondrial dynamic homeostasis and further promoted mitophagy. These novel findings indicate that AA may be a potential drug for LPS-induced AMI in broilers.
    El ácido asiático como mitigante de las lesiones miocárdicas agudas inducidas por lipopolisacáridos al promover la mitofagia y regular la dinámica mitocondrial en pollos de engorde. La lesión miocárdica aguda (con siglas en inglés IAM) inducida por lipopolisacáridos (LPS) puede causar disfunción cardiovascular y provocar la muerte en las aves comerciales. Se ha descubierto que la terapia tradicional con antibióticos tiene muchas limitaciones y efectos negativos. El ácido asiático (AA) es un triterpenoide pentacíclico natural que se extrae de la planta Centella asiática y que tiene propiedades farmacológicas antiinflamatorias, antioxidantes y anticancerígenas. Anteriormente, se estudió el efecto del ácido asiático sobre la lesión hepática y renal inducida por lipopolisacáridos; sin embargo, el impacto del ácido asiático en las lesiones miocárdicas agudas inducidas por lipopolisacáridos continua sin estar completamente determinada. Sesenta pollos de engorde de un día de edad se dividieron aleatoriamente en los siguientes grupos experimentales: grupo control, grupo que recibió LPS solamente, grupo LPS + ácido asiático 15 mg/kg, grupo LPS + ácido asiático 30 mg/kg, grupo LPS + ácido asiático 60 mg/kg y control + ácido asiático 60 mg./kg grupo. La histopatología de los tejidos cardíacos se detectó mediante tinción con hematoxilina y eosina (H&E). Las expresiones de ARN mensajero y proteínas relacionadas con la dinámica mitocondrial y la mitofagia se detectaron mediante PCR cuantitativa en tiempo real, inmunotransferencia Western, inmunofluorescencia e inmunohistoquímica. Se encontraron células miocárdicas desorganizadas y fibras miocárdicas fracturadas en el grupo que recibió lipopolisacáridos, y se puede observar un evidente acúmulo de glóbulos rojos en los espacios entre las fibras miocárdicas en el grupo de dosis bajas de ácido asiático. Sin embargo, las dosis medias y altas de ácido asiático obviamente atenuaron estos cambios. Nuestros resultados mostraron que el ácido asiático restableció significativamente las expresiones de ARN mensajero y proteínas relacionadas con la dinámica mitocondrial mediante la promoción adicional de la mitofagia. Este estudio reveló el efecto del ácido asiático sobre las lesiones miocárdicas agudas inducidas por lipopolisacáridos en pollos de engorde. Basicamente, el ácido asiático reguló la homeostasis dinámica mitocondrial y promovió aún más la mitofagia. Estos nuevos hallazgos indican que el ácido asiático puede ser un fármaco potencial para mitigar lesiones miocárdicas agudas inducidas por lipopolisacáridos en pollos de engorde.
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  • 文章类型: Journal Article
    中东和北非拥有许多具有制药和营养潜力的本地物种。从历史开始,食物和草药一直是人类生活和传统中东医疗保健系统的重要组成部分。圣经中提到的著名药用植物,这在西亚和北非的一些地区很常见,是芦荟,茴香,香脂,决明子,肉桂,孜然,亚麻,和无花果。芦荟的化学成分是芦荟素,芥子酸,儿茶素,色酮,杨梅素,槲皮苷和丁香酸。心穴,黄樟素,雌蕊是八角的主要化学成分。决明子的化学成分是香豆素,大黄素,肉桂醇,还有肉桂醛.孜然的主要化学成分是萜品烯,茴香醛,Sabinene,thujene,还有百里香醌.本文的目的是回顾在中东和北非被忽视和未充分利用的草药和植物的可观的健康益处和药物益处,以及促进它们的利用。根据结果,实验被忽视的药用植物可以提供各种优势,当与传统的药物治疗一起使用时,各种健康状况,例如控制常规治疗副作用的姑息治疗,获得更广泛的治疗方法,提高患者满意度,改善情绪和心理健康。更多-,食用药用植物可能有助于管理和预防糖尿病,癌症,和具有显著抗肿瘤作用的心脏病,和抗炎特性。
    The Middle east and North Africa harbour many native species with pharmaceutical and nutraceutical potential. Since the beginning of history, food and herbal medicinal plants have been an essential part of human lives and the traditional Middle Eastern healthcare system. The notable medicinal plants that have been mentioned in the Bible, which are common in West Asia and some regions of North Africa, are Aloe vera, anise, balm, cassia, cinnamon, cumin, flax, and fig. Chemical components of Aloe vera are aloin, sinapinic acid, catechin, chromone, myricetin, quercitrin and syringic acid. Anethole, safrole, and estragole are the main chemical components of anise. The chemical components of cassia are coumarin, emodin, cinnamyl alcohol, and cinnamaldehyde. The major chemical ingredients of cumin are terpinene, cuminaldehyde, sabinene, thujene, and thymoquinone. The goal of this article is to review the considerable health benefits and pharmaceutical benefits of medicinal herbs and plants that have been neglected and underutilized in the Middle East and North Africa, as well as to promote their utilization. On the basis of the results, the experimented neglected medicinal plant can offer various advantages when used together with conventional medicinal treatments for various health conditions, such as palliative care in managing the side effects of conventional treatments, access to a wider range of treatments, increased patient satisfaction, and improved emotional and mental well-being. Moreover, consuming medicinal plants may help to manage and prevent diabetes, cancer, and heart disease with notable anti-tumor, and anti-inflammatory properties.
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  • 文章类型: Case Reports
    已知慢性饥饿及其相关的代谢紊乱在长期内具有危险的心血管影响,但是对急性饥饿对心血管的影响知之甚少,比如在绝食的背景下。该病例描述了一名患者,该患者出现了急性冠状动脉综合征的体征和症状,绝食开始两周后,最终被发现患有应激性心肌病,随后的成像完全解决。
    Chronic starvation and its associated metabolic derangements are known to have dangerous cardiovascular implications in the long term, but less is known about the cardiovascular consequences of acute starvation, such as in the context of a hunger strike. This case describes a patient who presented with signs and symptoms of acute coronary syndrome which began two weeks into a hunger strike and was ultimately found to have stress cardiomyopathy with complete resolution on subsequent imaging.
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  • 文章类型: Case Reports
    心肌损伤是急性一氧化碳(CO)中毒后的已知并发症,然而,关于这个问题的文献很少。这里,我们介绍一名56岁男子因严重一氧化碳中毒入院急诊室。入院时的心电图(ECG)显示II导联ST段抬高,III,和aVF,肌钙蛋白T水平升高.病人最初接受高压氧治疗,随着症状的改善和心电图的正常化。他后来因冠状动脉造影入院,显示右冠状动脉闭塞.该病例旨在强调经常被忽视的一氧化碳中毒并发症,以及需要更多的研究来更好地指导这些患者的治疗。
    Myocardial injury is a known complication following acute carbon monoxide (CO) poisoning, yet there is little literature on this subject. Here, we present the case of a 56-year-old man admitted to the emergency room with severe CO poisoning. The electrocardiogram (ECG) at admission revealed an ST-segment elevation in leads II, III, and aVF, with an elevated troponin-T level. The patient was initially treated with hyperbaric oxygen, with improvement of symptoms and ECG normalization. He was later admitted for coronary angiography, which revealed an occlusion of the right coronary artery. This case aims to highlight an often-overlooked complication of CO intoxication and the need for more studies to better guide the treatment of these patients.
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  • 文章类型: Journal Article
    该研究的目的是描述通过高敏心肌肌钙蛋白I(hs-cTnI)水平评估的急性心肌损伤(AMI)的频率,并确定可能的初始危险因素(与患者的特征,疾病,和初始管理)在墨西哥西部一家三级医院中心的早期败血症成年患者(在诊断的前72小时内)中。对于推理统计,使用卡方检验比较分类二分变量的比例。在所有分析中,具有95%置信区间的小于0.05的p值被认为是显著的。我们纳入了64例诊断为早期脓毒症的患者,其中46人的hs-cTnI升高,被归类为患有AMI。在我们的研究中,早期脓毒症患者发生AMI的频率为71.87%,早期脓毒症患者与无AMI患者的所有特征均无显著差异,也未发现与所分析的任何变量有任何显著关联.在墨西哥西部的人口中,早期脓毒症患者的AMI频率,按hs-cTnI水平评估,很高,与全球其他人群的报道相似。
    The objective of the study was to describe the frequency of acute myocardial injury (AMI) assessed by high-sensitivity cardiac troponin I (hs-cTnI) levels and to determine the possible initial risk factors (related to the characteristics of the patient, the disease, and the initial management) in a population of adult patients with early sepsis (within the first 72 h of diagnosis) in a single tertiary hospital center in western Mexico. For the inferential statistics, the proportions of the categorical dichotomous variables were compared using the chi-square test. In all analyses, p values less than 0.05 with a 95% confidence interval were considered significant. We included a total of 64 patients diagnosed with early sepsis, of whom 46 presented elevated hs-cTnI and were classified as having AMI. In our study, the frequency of AMI in patients with early sepsis was 71.87%, and no significant differences were found in all of the characteristics of patients with early sepsis with and without AMI, nor was any significant association found with any of the variables analyzed. In the population of western Mexico, the frequency of AMI in patients with early sepsis, assessed by hs-cTnI levels, is high and similar to that reported in other populations worldwide.
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  • 文章类型: Case Reports
    肌酸激酶(CK)及其同工酶具有重要的诊断价值,在各种组织中以不同的模式出现。肌酸激酶MB(CK-MB)评估的最常见方法是基于免疫抑制。然而,这种方法可以在各种情况下报告CK-MB水平的错误升高。持续升高的CK-MB水平或测量值与患者临床状况之间的差异需要进一步调查。如总CK同工酶电泳。本报告介绍了一例患者被诊断为急性心肌梗塞并根据既定指南进行治疗的情况。然而,腹痛的存在,除了心脏症状消退后持续升高的CK-MB和更高的CK-MB占总CK的比率外,建议的替代病理。彻底的实验室调查,包括定量CK同工酶电泳和腹部对比增强计算机断层扫描(CECT),随后是紧急手术干预,导致急性小肠梗塞的二次诊断。
    The creatine kinase (CK) enzyme and its isoenzymes hold significant diagnostic value, appearing in distinct patterns across various tissues. The most common method for creatine kinase MB (CK-MB) estimation is based on immunoinhibition. However, this method can report falsely elevated CK-MB levels in various scenarios. Persistently elevated CK-MB levels or discrepancies between measured values and the patient\'s clinical condition warrant further investigation, such as total CK isoenzyme electrophoresis. This report presents a case where a patient was diagnosed with acute myocardial infarction and treated according to established guidelines. However, the presence of abdominal pain, in addition to persistently elevated CK-MB after the resolution of cardiac symptoms and a higher CK-MB to total CK ratio, suggested alternative pathologies. Thorough laboratory investigations, including quantitative CK isoenzyme electrophoresis and contrast-enhanced computed tomography (CECT) of the abdomen, followed by emergency operative intervention, led to a secondary diagnosis of acute small bowel infarction.
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  • 文章类型: Journal Article
    由肌钙蛋白I水平升高定义的急性心肌损伤与COVID-19患者的不良住院结局和心血管并发症相关。本研究旨在确定COVID-19心肌损伤的影响和临床结果。
    这项回顾性研究包括住院的COVID-19患者。心肌损伤定义为高敏肌钙蛋白I(hs-TNI)≥26ng/l。心脏生物标志物,系统收集和分析炎症标志物和临床数据.分析了院内死亡率的危险比和急性心肌损伤预测因子的逻辑回归。
    在1821例COVID-19患者中,有293例(16.09%)患者死亡,1528例(83.91%)患者存活。死亡患者与心血管危险因素的相关性明显更高,与存活组相比,严重CTSS(CT严重程度评分)和心肌损伤。628例(34.5%)患者有心肌损伤的证据,他们与心血管危险因素有统计学意义的关联,住院死亡率,降钙素原;高等医院,ICCU留下。我们发现糖尿病的危险比显著(HR=2.66,(CI:1.65-4.29)),严重CT评分(HR=2.81,(CI:1.74-4.52)),hs-TNI≥26ng/l(HR=4.68,(CI:3.81-5.76))的死亡率。在回归分析中,严重CTSS评分(OR=1.95,CI:1.18-3.23,P=0.01)和既往CVD病史(OR=1.65,CI:1.00-2.73,P=0.05)是心肌损伤的重要预测因素。
    近三分之一的住院患者在住院期间有急性心肌损伤的证据。急性心肌损伤与住院和ICCU住院时间有关,死亡率,较高的院内感染表明疾病更严重和不良的院内结局。
    UNASSIGNED: Acute Myocardial injury defined by increased troponin I level is associated with poor in-hospital outcomes and cardiovascular complications in patients with COVID-19. The current study was designed to determine the implications and clinical outcome of myocardial injury in COVID-19.
    UNASSIGNED: This retrospective study included hospitalized COVID-19 patients. Myocardial injury was defined by high sensitivity Troponin I (hs-TNI)≥26ng/l. Cardiac biomarkers, inflammatory markers and clinical data were systemically collected and analyzed. Hazard ratio for in-hospital mortality and logistic regression for predictors of acute myocardial injury were analyzed.
    UNASSIGNED: Of the 1821 total patients with COVID-19, 293(16.09%) patients died and 1528 (83.91%) patients survived. Patients who died had significantly higher association with presence of cardiovascular risk factors, severe CTSS ( CT severity score ) and myocardial injury as compared to survived group. 628 (34.5%) patients had evidence of myocardial injury and they had statistically significant association with cardiovascular risk factors, in-hospital mortality, procalcitonin; higher hospital, and ICCU stay. We found significant hazard ratio of diabetes (HR=2.66, (CI:1.65-4.29)), Severe CT score (HR=2.81, (CI:1.74-4.52)), hs-TNI≥26 ng/l (HR=4.68, (CI:3.81-5.76)) for mortality. Severe CTSS score (OR=1.95, CI: 1.18-3.23, P=0.01) and prior CVD history (OR=1.65, CI:1.00-2.73, P=0.05) were found significant predictors of myocardial injury in regression analysis.
    UNASSIGNED: Almost one third of hospitalized patients had evidence of acute myocardial injury during hospitalization. Acute myocardial injury is associated with higher hospital and ICCU stay, mortality, higher in-hospital infection which indicates more severe disease and the poor in-hospital outcomes.
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