Polarization

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  • 文章类型: Journal Article
    子宫腺肌病(AM)是一种常见的妇科疾病,其特征是子宫肌层内存在子宫内膜腺体和基质。它与异常子宫出血(AUB)有关,痛经,和不孕症。尽管已经提出了几种机制来阐明AM,该疾病的确切原因和发展仍不清楚。最近的研究强调了微环境中巨噬细胞极化的重要性,在AM的启动和进展中起着至关重要的作用。然而,目前缺乏关于巨噬细胞极化在AM中的作用和调节机制的全面综述。因此,本文旨在总结巨噬细胞极化的表型和功能以及子宫腺肌病相关巨噬细胞(AAMs)的极化现象。阐述了AAM极化在入侵/迁移中的作用及调控机制,纤维化,血管生成,痛经,和不孕症。此外,这篇综述探讨了AAM极化的潜在分子机制,并提出了未来的研究方向。总之,本综述为理解AM的发病机制提供了新的视角,为开发通过调节AAM极化的靶向药物提供了理论基础。
    Adenomyosis (AM) is a common gynecological disorder characterized by the presence of endometrial glands and stroma within the uterine myometrium. It is associated with abnormal uterine bleeding (AUB), dysmenorrhea, and infertility. Although several mechanisms have been proposed to elucidate AM, the exact cause and development of the condition remain unclear. Recent studies have highlighted the significance of macrophage polarization in the microenvironment, which plays a crucial role in AM initiation and progression. However, a comprehensive review regarding the role and regulatory mechanism of macrophage polarization in AM is currently lacking. Therefore, this review aims to summarize the phenotype and function of macrophage polarization and the phenomenon of the polarization of adenomyosis-associated macrophages (AAMs). It also elaborates on the role and regulatory mechanism of AAM polarization in invasion/migration, fibrosis, angiogenesis, dysmenorrhea, and infertility. Furthermore, this review explores the underlying molecular mechanisms of AAM polarization and suggests future research directions. In conclusion, this review provides a new perspective on understanding the pathogenesis of AM and provides a theoretical foundation for developing targeted drugs through the regulation of AAM polarization.
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  • 文章类型: Journal Article
    在韩国,财富两极分化非常严重,它的速度比其他国家快。最近,投资于股票等工具,比特币和房地产被视为加剧韩国财富两极分化的决定性因素。本研究的动机是分析投资对财富两极分化的影响。我们进行了一项研究,重点是投资对财富两极分化的影响。在这项研究中,我们分析了投资对财富两极分化的影响。我们研究了房地产的影响,股票,和比特币对财富的两极分化。我们对收入五分位数的份额比率进行了多元回归分析,房地产,股票,和比特币,然后与利率进行多元回归分析,家庭债务,收入,和价格指数。为了分析投资对财富两极分化的影响,利用了政府和机构的公开数据(2015-2020年)。结果表明,房地产,股票,在这项研究中,作为投资工具的比特币并没有对财富的两极分化产生重大影响。这是因为房地产投资的普及,股票,和比特币在韩国从2020年开始认真开始,实际上加速了财富的两极分化。本研究具有理论贡献,因为分析了投资对财富两极分化的影响,并讨论和提出了经济稳定政策。此外,本研究的一个新的学术贡献是同时分析了财富的投资和两极分化。
    In South Korea, the polarization of wealth is very serious, and its pace is faster than in other countries. Recently, investments in instruments such as stocks, bitcoins and in real estate are seen as decisive factors that intensify the polarization of wealth in South Korea. The motivation for this study is to analyze effects of investment on polarization of wealth. We carried out a study focused on the impact of investments on the polarization of wealth. In this study, we analyzed the effect of investment on the polarization of wealth. We studied the effect of real estate, stocks, and bitcoin on the polarization of wealth. We conducted multiple regression analysis on the income quintile share ratio, real estate, stocks, and bitcoins and then carry out multiple regression analysis with interest rates, household debt, incomes, and price indices. In order to analyze the investment impact on the polarization of wealth, the public data (2015-2020) from the government and institutions were utilized. Results showed that real estate, stocks, and bitcoins set as investment instruments in this study did not have a significant impact on the polarization of wealth. It is because the popularity of investments in real estates, stocks, and bitcoins in South Korea began in earnest from 2020, and has actually accelerated the polarization of wealth. This study has the theoretical contribution because the impact of investments on the polarization of wealth is analyzed, and policies for economic stability are discussed and presented. In addition, a new academic contribution of this study is to analyze the investment and polarization of wealth at the same time.
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  • 文章类型: Journal Article
    缺血性卒中(IS)的发病率随着全球人口老龄化而上升。迫切需要深入研究病理机制并开发新的神经保护策略。在本次审查中,我们讨论了在IS治疗中靶向小胶质细胞极化的各种纳米药物递送系统(NDDS)的最新进展和研究。此外,我们批判性地讨论不同的策略。NDDS已经证明了卓越的品质,可以有效地渗透血脑屏障,聚集在缺血性损伤部位,并在适当修改后靶向大脑内的特定细胞类型。因此,NDDS具有重塑小胶质细胞极化表型的巨大潜力,可能是IS的前瞻性治疗策略。IS的治疗仍然是一个挑战。然而,这篇综述为以小胶质细胞极化为中心的IS治疗提供了一个新的神经纳米医学观点,从而激发新的研究思路和方向。
    The incidence of ischemic stroke (IS) is rising in tandem with the global aging population. There is an urgent need to delve deeper into the pathological mechanisms and develop new neuroprotective strategies. In the present review, we discuss the latest advancements and research on various nanodrug delivery systems (NDDSs) for targeting microglial polarization in IS treatment. Furthermore, we critically discuss the different strategies. NDDSs have demonstrated exceptional qualities to effectively permeate the blood-brain barrier, aggregate at the site of ischemic injury, and target specific cell types within the brain when appropriately modified. Consequently, NDDSs have considerable potential for reshaping the polarization phenotype of microglia and could be a prospective therapeutic strategy for IS. The treatment of IS remains a challenge. However, this review provides a new perspective on neuro-nanomedicine for IS therapies centered on microglial polarization, thereby inspiring new research ideas and directions.
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  • 文章类型: Review
    肿瘤微环境(TME)是一个以肿瘤细胞为主体的复杂系统,间充质细胞和免疫细胞。巨噬细胞,也称为肿瘤相关巨噬细胞(TAMs),在先天免疫细胞中,是TME中一些最丰富的成分。它们可能通过与TME中其他细胞群体的相互作用影响肿瘤生长和转移,并且与多种肿瘤的不良预后有关。因此,更好地了解TAMs在TME中的作用可能为肿瘤治疗提供新的见解.在本次审查中,概述了TME中TAM的起源和分类,以及它们对肿瘤细胞的极化和双重作用,以及针对TAM的癌症治疗的新兴策略,进行了讨论。
    The tumor microenvironment (TME) is a complex system composed mainly of tumor cells, mesenchymal cells and immune cells. Macrophages, also known as tumor‑associated macrophages (TAMs), among innate immune cells, are some of the most abundant components of the TME. They may influence tumor growth and metastasis through interactions with other cell populations in the TME and have been associated with poor prognosis in a variety of tumors. Therefore, a better understanding of the role of TAMs in the TME may provide new insight into tumor therapy. In the present review, the origin and classification of TAMs in the TME were outlined and their polarization and dual effects on tumor cells, as well as emerging strategies for cancer therapies targeting TAMs, were discussed.
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  • 文章类型: Journal Article
    跨文化,腐蚀已被认为是最昂贵的因素之一,向倒退的混凝土和金属结构,导致巨大的金钱损失和意外的生命损失。在很大程度上,腐蚀相关的灾难可以通过在结构完整性受到威胁之前监测腐蚀的能力来避免。本文批判性地回顾了用于腐蚀监测的各种常规电化学技术的定义,时间轴,实验设置,优势,和缺点。此外,利用这些技术作为腐蚀检测技术的文献在这里得到了关注。此外,对最近报道的方法进行了比较,以更好地了解该领域的研究进展。
    Interculturally, corrosion has been counted as one of the most expensive factors toward the retrogression of concrete and metallic structures resulting in huge monetary losses and unanticipated loss of life. To a large extent, corrosion-related catastrophes can be avoided by having the ability to monitor corrosion before structural integrity is jeopardized. This paper critically reviews the various accustomed electrochemical techniques utilized for corrosion monitoring in terms of their definition, timeline, experimental set-up, advantages, and shortcomings. Additionally, literature exploiting these techniques as their corrosion detection technique has been focused on here. Furthermore, a comparison between recently reported methods has been made to provide better insights into the research progress in this arena.
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  • 文章类型: Journal Article
    肿瘤相关巨噬细胞(TAM)是浸润肿瘤微环境(TME)的重要免疫细胞。最近的研究表明,TAM在表型方面表现出多样性,函数,时间,和空间分布,这允许TAM亚型的进一步分类。脂肪酸氧化(FAO)的代谢效率在TAM亚型之间有所不同。粮农组织与活性氧(ROS)的产生密切相关,在氧化应激等过程中发挥作用。目前的证据表明,粮农组织和ROS可以影响TAMs的招募,极化,和吞噬能力单独或组合,从而影响肿瘤进展。但与这些关系相关的具体机制仍需进一步调查。我们将从ROS和TAMs三个方面综述TAMs与肿瘤发生发展关系的研究现状,粮农组织和TAM,以及粮农组织的相互联系,ROS,和TAM。
    Tumor-associated macrophages (TAMs) are significant immunocytes infiltrating the tumor microenvironment(TME). Recent research has shown that TAMs exhibit diversity in terms of their phenotype, function, time, and spatial distribution, which allows for further classification of TAM subtypes. The metabolic efficiency of fatty acid oxidation (FAO) varies among TAM subtypes. FAO is closely linked to the production of reactive oxygen species (ROS), which play a role in processes such as oxidative stress. Current evidence demonstrates that FAO and ROS can influence TAMs\' recruitment, polarization, and phagocytosis ability either individually or in combination, thereby impacting tumor progression. But the specific mechanisms associated with these relationships still require further investigation. We will review the current status of research on the relationship between TAMs and tumor development from three aspects: ROS and TAMs, FAO and TAMs, and the interconnectedness of FAO, ROS, and TAMs.
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  • 文章类型: Journal Article
    Micro-LED显示技术因其卓越的性能而被认为是近眼显示应用的有希望的候选产品,例如具有高亮度,高分辨率,和高对比度。然而,从Micro-LED阵列中实现偏振和高效率的光提取仍然是一个需要解决的重要问题。最近,通过利用波前调制中的超表面能力,研究人员通过将超表面结构与Micro-LED集成,取得了许多优秀的成果,包括提高光提取效率,控制发射角度以实现定向发射,并获得偏振的Micro-LED。在本文中,在上述三个方面综述了与超表面结构集成的Micro-LED的最新进展,以及超表面结构在有机发光二极管中的类似应用,量子点LED,和钙钛矿发光二极管也进行了总结。
    Micro-LED display technology has been considered a promising candidate for near-eye display applications owing to its superior performance, such as having high brightness, high resolution, and high contrast. However, the realization of polarized and high-efficiency light extraction from Micro-LED arrays is still a significant problem to be addressed. Recently, by exploiting the capability of metasurfaces in wavefront modulation, researchers have achieved many excellent results by integrating metasurface structures with Micro-LEDs, including improving the light extraction efficiency, controlling the emission angle to achieve directional emission, and obtaining polarized Micro-LEDs. In this paper, recent progressions on Micro-LEDs integrated with metasurface structures are reviewed in the above three aspects, and the similar applications of metasurface structures in organic LEDs, quantum dot LEDs, and perovskite LEDs are also summarized.
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  • 文章类型: Review
    在氧气充足的条件下,肿瘤细胞通过糖酵解为自己提供能量,这是它们迅速扩散的原因之一,转移和耐药性的获得。肿瘤相关巨噬细胞(TAM)由外周血单核细胞转化而来,是构成肿瘤微环境(TME)的免疫相关细胞之一。TAM中糖酵解水平的改变对其极化和功能有重要影响。TAMs分泌的细胞因子,和吞噬作用在不同的极化状态,影响肿瘤发生和发展。此外,TME中肿瘤细胞和其他免疫相关细胞糖酵解活性的变化也会影响TAMs的极化和功能,糖酵解与TAMs关系的研究日益受到重视。本研究总结了TAM的糖酵解与其极化和功能之间的联系,以及TME和TAMs中肿瘤细胞与其他免疫相关细胞糖酵解变化之间的相互作用。本综述旨在全面了解糖酵解对TAMs极化和功能的影响。
    Under conditions of oxygen sufficiency, tumor cells supply themselves with energy through glycolysis, which is one of the causes of their rapid proliferation, metastasis and acquisition of drug resistance. Tumor‑associated macrophages (TAMs) are transformed from peripheral blood monocytes and are among the immune‑related cells that constitute the tumor microenvironment (TME). Altered glycolysis levels in TAMs have an important impact on their polarization and function. The cytokines secreted by TAMs, and phagocytosis in different polarization states, affect tumorigenesis and development. Furthermore, changes in glycolysis activity of tumor cells and other immune‑related cells in the TME also affect the polarization and function of TAMs. Studies on the relationship between glycolysis and TAMs have received increasing attention. The present study summarized the link between glycolysis of TAMs and their polarization and function, as well as the interaction between changes in glycolysis of tumor cells and other immune‑associated cells in the TME and TAMs. The present review aimed to provide a comprehensive understanding of the effects of glycolysis on the polarization and function of TAMs.
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  • 文章类型: Journal Article
    骨关节炎(OA)是一种涉及整个关节的疾病,严重降低了个人的生活水平。传统治疗包括物理治疗,给予抗炎和镇痛药物以及将糖皮质激素或透明质酸注射到关节中。然而,这些方法疗效有限,难以逆转OA的进展,因此,迫切需要寻找新的有效治疗方法。免疫微环境在OA的发生和发展中具有重要意义。最近的研究表明巨噬细胞是治疗OA的重要靶点。巨噬细胞在不同因素刺激下分化为M1促炎表型和M2抗炎表型,释放和调节炎症反应和软骨生长。越来越多的研究试图通过调节巨噬细胞稳态来缓解OA。本研究总结了相关研究,讨论各种治疗试剂对OA的作用机理,阐述药物作用于OA的分子机制,试图为OA的治疗提供线索。
    Osteoarthritis (OA) is a disease involving the whole joint that seriously reduces the living standards of individuals. Traditional treatments include physical therapy, administration of anti-inflammatory and analgesic drugs and injection of glucocorticoids or hyaluronic acid into the joints. However, these methods have limited efficacy and it is difficult to reverse the progression of OA, therefore it is urgent to find new effective treatment methods. Immune microenvironment is significant in the occurrence and development of OA. Recent studies have shown that macrophages are important targets for the treatment of OA. Macrophages are polarized into M1 pro-inflammatory phenotype and M2 anti-inflammatory phenotype under stimulation of different factors, which release and regulate inflammatory response and cartilage growth. Accumulating studies have tried to alleviate OA by regulating macrophage homeostasis. The present study summarized the related studies, discuss the mechanism of various therapeutic reagents on OA, expound the molecular mechanism of drug effect on OA and attempted to provide clues for the treatment of OA.
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  • 文章类型: Journal Article
    聚合物电介质是静电电容器中的关键部件,交通运输,军事,和航空航天领域,它们的工作温度可以升高到125°C以上。虽然大多数聚合物在高温下具有较差的热稳定性和严重的介电损耗,许多具有线性D-E环和低介电常数的线性聚合物表现出低损耗和高热稳定性。因此,对于线性聚合物,在极端条件下静电电容器具有广阔的前景,近年来,随着高效率地提高能源密度的努力。在这篇文章中,概述了高温下用于高能量密度静电电容器的线性聚合物及其复合材料的最新进展。决定储能性能的三个关键因素,包括极化,击穿强度,和热稳定性,并讨论了它们的联轴器。策略包括链调制,填料选择,并对拓扑结构设计进行了总结。还介绍了聚合物电介质的电和热评估的关键参数。在这次审查结束时,总结了基于线性聚合物的电介质的更好性能和工业化的研究挑战和未来机遇。
    Polymer dielectrics are key components for electrostatic capacitors in energy, transportation, military, and aerospace fields, where their operation temperature can be boosted beyond 125 °C. While most polymers bear poor thermal stability and severe dielectric loss at elevated temperatures, numerous linear polymers with linear D-E loops and low dielectric permittivity exhibit low loss and high thermal stability. Therefore, the broad prospect of electrostatic capacitors under extreme conditions is anticipated for linear polymers, along with intensive efforts to enhance their energy density with high efficiency in recent years. In this article, an overview of recent progress in linear polymers and their composites for high-energy-density electrostatic capacitors at elevated temperatures is presented. Three key factors determining energy storage performance, including polarization, breakdown strength, and thermal stability, and their couplings are discussed. Strategies including chain modulation, filler selection, and design of topological structure are summarized. Key parameters for electrical and thermal evaluations of polymer dielectrics are also introduced. At the end of this review, research challenges and future opportunities for better performance and industrialization of dielectrics based on linear polymers are concluded.
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