EAT

EAT
  • 文章类型: Journal Article
    随着近年来心血管成像领域的巨大进步,计算机断层扫描(CT)已成为动脉粥样硬化性冠状动脉疾病的表型。使用人工智能(AI)的新分析方法可以分析动脉粥样硬化斑块的复杂表型信息。特别是,使用卷积神经网络(CNN)的基于深度学习的方法促进了病变检测等任务,分割,和分类。新的放射转录组学技术甚至通过对CT图像上的体素进行高阶结构分析来捕获潜在的生物组织化学过程。在不久的将来,国际大规模牛津危险因素和非侵入性成像(ORFAN)研究将为测试和验证基于AI的预后模型提供强大的平台。目标是将这些新方法从研究环境转变为临床工作流程。在这次审查中,我们概述了现有的基于AI的技术,重点是成像生物标志物以确定冠状动脉炎症的程度,冠状动脉斑块,以及相关风险。Further,将讨论使用基于AI的方法的当前限制以及解决这些挑战的优先事项。这将为AI启用的风险评估工具铺平道路,以检测易损的动脉粥样硬化斑块并指导患者的治疗策略。
    With the enormous progress in the field of cardiovascular imaging in recent years, computed tomography (CT) has become readily available to phenotype atherosclerotic coronary artery disease. New analytical methods using artificial intelligence (AI) enable the analysis of complex phenotypic information of atherosclerotic plaques. In particular, deep learning-based approaches using convolutional neural networks (CNNs) facilitate tasks such as lesion detection, segmentation, and classification. New radiotranscriptomic techniques even capture underlying bio-histochemical processes through higher-order structural analysis of voxels on CT images. In the near future, the international large-scale Oxford Risk Factors And Non-invasive Imaging (ORFAN) study will provide a powerful platform for testing and validating prognostic AI-based models. The goal is the transition of these new approaches from research settings into a clinical workflow. In this review, we present an overview of existing AI-based techniques with focus on imaging biomarkers to determine the degree of coronary inflammation, coronary plaques, and the associated risk. Further, current limitations using AI-based approaches as well as the priorities to address these challenges will be discussed. This will pave the way for an AI-enabled risk assessment tool to detect vulnerable atherosclerotic plaques and to guide treatment strategies for patients.
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  • 文章类型: Journal Article
    心血管疾病(CVDs)是世界范围内的主要死亡原因。心外膜脂肪组织(EAT)定义为位于心肌表面和心包内脏层之间的脂肪储库,是一种内脏脂肪。EAT是动脉粥样硬化和心血管事件最重要的危险因素之一,也是心血管疾病有希望的新治疗靶点。在卫生条件下,EAT具有保护功能,包括防止体温过低或机械应力,从游离脂肪酸和脂联素的释放中提供心肌能量。在肥胖患者中,代谢综合征,或糖尿病,EAT成为促进CVD发展的有害组织。以前,我们发现冠状动脉疾病(CAD)患者冠状动脉周围脂肪组织中的基因表达受到不利调节。这里,我们总结了关于EAT在CVD发展中的作用的现有证据,包括CAD,心力衰竭,和心房颤动。由于COVID-19大流行的迅速发展,我们还讨论了有关EAT与COVID-19病程之间关联的数据。最后,我们提出了旨在修改EAT功能的潜在治疗可能性。专门针对EAT的新疗法的开发可能会彻底改变CVD的预后。
    Cardiovascular diseases (CVDs) are the leading causes of death worldwide. Epicardial adipose tissue (EAT) is defined as a fat depot localized between the myocardial surface and the visceral layer of the pericardium and is a type of visceral fat. EAT is one of the most important risk factors for atherosclerosis and cardiovascular events and a promising new therapeutic target in CVDs. In health conditions, EAT has a protective function, including protection against hypothermia or mechanical stress, providing myocardial energy supply from free fatty acid and release of adiponectin. In patients with obesity, metabolic syndrome, or diabetes mellitus, EAT becomes a deleterious tissue promoting the development of CVDs. Previously, we showed an adverse modulation of gene expression in pericoronary adipose tissue in patients with coronary artery disease (CAD). Here, we summarize the currently available evidence regarding the role of EAT in the development of CVDs, including CAD, heart failure, and atrial fibrillation. Due to the rapid development of the COVID-19 pandemic, we also discuss data regarding the association between EAT and the course of COVID-19. Finally, we present the potential therapeutic possibilities aiming at modifying EAT\'s function. The development of novel therapies specifically targeting EAT could revolutionize the prognosis in CVDs.
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  • 文章类型: Journal Article
    批判性回顾和总结有关新生儿禁欲综合征(NAS)新生儿评估的最新知识。
    我们在以下数据库中搜索了2014年1月至2020年6月之间以英文发表的有关NAS新生儿评估的文章:PubMed,CINAHL,和PsycINFO。关键词和医学主题用于识别相关研究文章的标题术语包括新生儿禁欲综合征;Finnegan量表;吃,睡眠,控制台;表观遗传学;遗传学;药代动力学;和测量。我们独立审查了纳入的文章。
    我们通过数据库搜索检索了435篇文章,通过手动参考搜索检索了17篇;最终评论中包含了31篇文章。排除的文章是重复的,与NAS无关,定性研究,和/或低质量。
    我们使用Whittemore和Knafl的方法来指导这一综合评论。我们在以下标题下提取和组织数据:作者,年和国家,目的,研究设计,参与者,测量,生物标志物(如果适用),结果,局限性,recommendations,和干预。
    Finnegan新生儿禁欲量表是测量新生儿NAS症状最广泛使用的工具,虽然很主观。最近,从Finnegan新生儿禁欲量表过渡到饮食,睡眠,控制台方法,这包括结构化评估和干预,并已被证明可以减少住院时间和总阿片类药物治疗剂量。研究人员检查了NAS的生物标志物,包括遗传标记和自主神经系统反应,关于NAS发生率和不同严重程度的变化。在包含的文章中,在怀孕期间接受纳曲酮治疗的患有阿片类药物使用障碍的女性分娩的新生儿没有NAS诊断.然而,大多数接受丁丙诺啡治疗的妇女分娩的新生儿诊断为NAS.
    NAS以多种方式对新生儿产生负面影响,对新生儿戒断反应的客观评估和测量仍未得到充分研究,需要进一步调查。
    To critically review and summarize current knowledge regarding the assessment of newborns with neonatal abstinence syndrome (NAS).
    We searched the following databases for articles on the assessment of newborns with NAS that were published in English between January 2014 and June 2020: PubMed, CINAHL, and PsycINFO. Keywords and Medical Subject Heading terms used to identify relevant research articles included neonatal abstinence syndrome; Finnegan Scale; eat, sleep, console; epigenetics; genetics; pharmacokinetics; and measurement. We independently reviewed articles for inclusion.
    We retrieved 435 articles through database searches and 17 through manual reference searches; 31 articles are included in the final review. Excluded articles were duplicates, not relevant to NAS, qualitative studies, and/or of low quality.
    We used the methodology of Whittemore and Knafl to guide this integrative review. We extracted and organized data under the following headings: author, year and country, purpose, study design, participants, measurement, biomarker (if applicable), results, limitations, recommendations, and intervention.
    The Finnegan Neonatal Abstinence Scale is the most widely used instrument to measure symptoms of NAS in newborns, although it is very subjective. Recently, there has been a transition from the Finnegan Neonatal Abstinence Scale to the eat, sleep, console method, which consists of structured assessment and intervention and has been shown to decrease length of hospital stay and total opioid treatment dose. Researchers examined biomarkers of NAS, including genetic markers and autonomic nervous system responses, on the variation in incidence and differential severity of NAS. In the included articles, women with opioid use disorder who were treated with naltrexone during pregnancy gave birth to newborns without NAS diagnoses. However, most women who were treated with buprenorphine gave birth to newborns with NAS diagnoses.
    NAS negatively affects newborns in a multitude of ways, and the objective assessment and measurement of the newborn\'s response to withdrawal remains understudied and needs further investigation.
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