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  • 文章类型: Journal Article
    目的:探讨新生血管性年龄相关性黄斑变性(nAMD)患者从阿柏西普转换为法利单抗的疗效和结局,专注于视力,视网膜液管理,和治疗间隔。主要目的是评估阿柏西普难治性nAMD患者的早期结局,并探索法利单抗作为更持久治疗替代方案的潜力。
    方法:自2022年9月至2023年5月在阿布扎比克利夫兰诊所对50名难治性nAMD患者进行了单中心回顾性研究。患者从阿柏西普改用法利单抗,符合难治性nAMD的具体标准。该研究分析了最佳矫正视力(BCVA),中心子场厚度(CST),和液体变化后的开关,使用光学相干断层扫描(OCT)。
    结果:注射三次法利单抗后,观察到CST显著减少,视网膜液显着减少。平均BCVA在整个研究期间保持稳定。尽管最大色素上皮脱离(PED)高度有所下降,没有统计学意义。切换后的治疗间隔显示,大多数患者维持或延长了他们的治疗间隔,具有显著比例的视网膜内液(IRF)和视网膜下液(SRF)的分辨率。
    结论:在难治性nAMD患者中,从阿柏西普改用法利克单抗可显著改善视网膜液管理和CST,具有稳定的BCVA结果。Faricimab为需要频繁注射阿柏西普的患者提供了一种有希望的替代方案,可能提供更易于管理的治疗方案,延长给药间隔.这项研究强调了在nAMD治疗中需要个性化的治疗策略,虽然进一步的研究是必要的,以优化治疗开关。
    OBJECTIVE: To investigate the efficacy and outcomes of switching neovascular age-related macular degeneration (nAMD) patients from aflibercept to faricimab, focusing on visual acuity, retinal fluid management, and treatment intervals. The primary aim was to assess the early outcomes in nAMD patients refractory to aflibercept and explore faricimab\'s potential as a longer-lasting therapeutic alternative.
    METHODS: A single-center retrospective study was conducted on 50 refractory nAMD patients at Cleveland Clinic Abu Dhabi from September 2022-May 2023. Patients were switched from aflibercept to faricimab, having met specific criteria for refractory nAMD. The study analyzed best-corrected visual acuity (BCVA), central subfield thickness (CST), and fluid changes post-switch, using Optical Coherence Tomography (OCT).
    RESULTS: After three faricimab injections, significant reductions in CST were observed, with a notable decrease in retinal fluid. The mean BCVA remained stable throughout the study period. Although there was a decrease in the maximum pigment epithelial detachment (PED) height, it was not statistically significant. Treatment intervals post-switch showed that the majority of patients maintained or extended their treatment intervals, with a significant proportion achieving resolution of intraretinal fluid (IRF) and subretinal fluid (SRF).
    CONCLUSIONS: Switching to faricimab from aflibercept in refractory nAMD patients led to significant improvements in retinal fluid management and CST, with stable BCVA outcomes. Faricimab presents a promising alternative for patients requiring frequent aflibercept injections, potentially offering a more manageable treatment regimen with extended dosing intervals. This study highlights the need for personalized therapeutic strategies in nAMD treatment, though further research is necessary to optimize treatment switches.
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  • 文章类型: Journal Article
    尽管学龄前儿童的认知灵活性(CF)已被广泛研究,3岁左右儿童CF的发展尚不清楚。这项研究旨在调查逐步规则归纳任务(sRIT)中三岁儿童的CF,该任务包括九个步骤,其中鼓励儿童将注意力转移到新规则上,然后隐含地抑制旧规则。每个步骤都显示一对框,和2.5至3.5岁的儿童被要求选择目标。当孩子们学习规则时(例如,形状规则),他们被鼓励通过负面反馈来改变规则。结果显示,大多数儿童(81.10%)通过了两组sRIT中的至少一组,三岁以上的儿童比三岁以下的儿童表现更好。此外,规则转换和规则泛化之间存在正相关关系,旧规则被隐含地抑制了。这些发现表明,三岁可能是CF发展的一个里程碑,抑制性控制可能在规则转换中起着至关重要的作用。
    Although the cognitive flexibility (CF) of preschool children has been extensively studied, the development of CF in children around three years old is unclear. This study aimed to investigate the CF of three-year-olds in a stepwise rule-induction task (sRIT) comprising nine steps in which children are encouraged to switch attention to a new rule and then implicitly inhibit the old one. A pair of boxes was displayed at each step, and children aged 2.5 to 3.5 years were asked to select the target. When children learned a rule (e.g., the shape rule), they were encouraged to switch rules through negative feedback. The results showed that most children (81.10%) passed at least one of the two sets of the sRIT, and children over the age of three years performed better than those under three years. Additionally, a positive correlation existed between rule switching and rule generalization, whereby the old rule was implicitly inhibited. These findings indicate that age three might be a milestone in the development of CF, and inhibitory control might play a vital role in rule switching.
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  • 文章类型: Journal Article
    快速,简单,低成本的诊断技术是对抗传染病的重要工具。我们描述了一类基于适体的RNA开关或aptaswitches,其识别靶核酸分子并启动报告适体的折叠。Aptaswitches几乎可以检测任何序列,并提供强烈的荧光读数,而无需介入酶,在短短5分钟内产生信号,并以最少的设备通过眼睛进行检测。Aptaswitches可用于调节七个荧光适体的折叠,提供了控制适体的一般手段和可复用的报告颜色的阵列。等温扩增反应与aptaswitches偶联,在一锅反应中,我们的灵敏度低至1个RNA拷贝/μL。针对来自临床唾液样品的RNA的多重一体化反应的应用对于在30分钟内检测SARS-CoV-2产生96.67%的总体准确度。因此,Aptaswitches是用于核酸检测的通用工具,其易于整合到快速诊断测定中。
    Rapid, simple, and low-cost diagnostic technologies are crucial tools for combatting infectious disease. We describe a class of aptamer-based RNA switches or aptaswitches that recognize target nucleic acid molecules and initiate folding of a reporter aptamer. Aptaswitches can detect virtually any sequence and provide an intense fluorescent readout without intervening enzymes, generating signals in as little as 5 minutes and enabling detection by eye with minimal equipment. Aptaswitches can be used to regulate folding of seven fluorogenic aptamers, providing a general means of controlling aptamers and an array of multiplexable reporter colors. Coupling isothermal amplification reactions with aptaswitches, we reach sensitivities down to 1 RNA copy/μL in one-pot reactions. Application of multiplexed all-in-one reactions against RNA from clinical saliva samples yields an overall accuracy of 96.67% for detection of SARS-CoV-2 in 30 minutes. Aptaswitches are thus versatile tools for nucleic acid detection that are readily integrated into rapid diagnostic assays.
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  • 文章类型: Journal Article
    背景:坚持和坚持使用疾病修饰疗法(DMT)治疗是治疗效果的预测指标。目的:研究的目的是分析依从性,持久性,开关,以及MS中使用的药物的成本。方法:这是2007年1月至2022年9月期间接受治疗的610例复发缓解型多发性硬化(RRMS)患者的回顾性非干预性药理学观察研究。结果:考虑用于研究的所有药物的粘附值大于0.75。在对一线治疗进行的分析中,平均持久性值为2.5年。结论:在依从性占优势的治疗中,但不是唯一的治疗功效,坚持药物是药物疗效的代名词。
    多发性硬化症(MS)是一种慢性疾病,通常在生命早期开始。像许多慢性疾病一样,坚持治疗对于治疗的长期有效性至关重要.在MS中,大多数治疗——无论是口服还是肠胃外——都是在家里自己给药,使长期坚持至关重要。坚持使用单一药物也被视为治疗有效性的指标,因为长期使用通常意味着更少的治疗变化和更大的药物疗效。本文分析了这些关键的药房利用率指标-依从性,持久性,和治疗开关-直接比较最常用的MS药物的现实世界的有效性。
    Background: Adherence and persistence to treatment with disease-modifying therapies (DMTs) is a predictor of the efficacy of treatment. Aims: The objectives of the study were the analysis of adherence, persistence, switches, and costs of the drugs used in MS. Methods: This is a retrospective non-interventional pharmacological observational study of 610 patients diagnosed with Relapsing-Remitting Multiple Sclerosis (RRMS) under therapy between January 2007 and September 2022. Results: Adherence values were greater than 0.75 for all the drugs in considered for the study. The mean persistence value was 2.5 years on the analysis performed on the first-line treatment. Conclusion: In a therapy in which adherence is predominant, but not exclusive to therapy efficacy, persistence to the drug is synonymous with drug efficacy.
    Multiple Sclerosis (MS) is a chronic disease that often begins early in life. Like in many chronic diseases, consistent adherence to treatment is vital for the long-term effectiveness of therapies. In MS, most treatments—whether oral or parenteral—are self-administered at home, making long-term adherence crucial. Persistence in sticking with a single drug is also seen as an indicator of the treatment’s effectiveness, as longer use generally means fewer therapy changes and greater drug efficacy. This article analyzes these key pharmacy utilization metrics—adherence, persistence, and therapy switches—to directly compare the real-world effectiveness of the most commonly used MS drugs.
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  • 文章类型: Journal Article
    目的:评估在患有DME并曾接受阿柏西普治疗的个体中转换为法利单抗的有效性。
    方法:在本回顾性研究中,单中心研究,纳入了以前接受至少3次注射阿柏西普治疗,然后改用法利单抗的DME患者。基线时记录最佳矫正视力(BCVA)和中心子场厚度(CST),在转换时和6个月随访时。在过渡到法里马的时候,患者被归类为“良好视觉反应者”(基线≥5个字母)或“不良视觉反应者”(<5个字母),和“良好的解剖学反应者”(与基线相比,水肿减少)或“不良的解剖学反应者”(水肿没有减少或恶化)。在转换为法利单抗后6个月记录BCVA和CST的变化。
    结果:100眼100例患者(61例女性,61%)在平均注射6.8±3.3阿柏西普后改用法利单抗。在6个月的随访中,只有“不良视觉响应者”(N=62)显示BCVA有意义的增加(Δswitch-6M=5个字母;P=0.007),再加上CST降低(Δswitch-6M=-67.9µm;P=0.004);过渡后“解剖学反应差”的参与者表现出显着的功能增强(Δswitch-6M=4.5字母;p=0.05),但CST增强有限(Δswitch-6M=-95.1µm;p=0.05)。
    结论:Faricimab对阿柏西普难治性DME病例的解剖学和功能指标具有积极影响。
    OBJECTIVE: To assess the effectiveness of a switch to faricimab in individuals affected by DME and previously treated with aflibercept.
    METHODS: In this retrospective, single-center study, DME patients previously treated with at least 3 injections of aflibercept then switched to faricimab were enrolled. Best corrected visual acuity (BCVA) and central subfield thickness (CST) were recorded at baseline, at the time of the switch and at 6 months follow-up. At transition to faricimab, patients were categorized as \"good visual responders\" (≥ 5 letters from baseline) or \"poor visual responders\" (< 5 letters), and as \"good anatomical responders\" (any reduction in edema compared to baseline) or \"poor anatomical responders\" (no reduction or worsening of edema). Changes in BCVA and CST were recorded at 6 months after the switch to faricimab.
    RESULTS: 100 eyes of 100 patients (61 female, 61%) were switched to faricimab after a mean of 6.8 ± 3.3 aflibercept injections. At the 6 months follow-up, only \"poor visual responders\" (N = 62) demonstrated a meaningful increase in BCVA (Δswitch-6M =  + 5 letters; P = 0.007), coupled with a reduction in CST (Δswitch-6M = - 67.9 µm; P = 0.004); participants with \"poor anatomical response\" upon transitioning exhibited a significant functional gain (Δswitch-6M =  + 4.5 letters; p = 0.05) but limited CST enhancements (Δswitch-6M = - 95.1 µm; p = 0.05).
    CONCLUSIONS: Faricimab shows a positive impact on anatomical and functional metrics in DME cases refractory to aflibercept.
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  • 文章类型: Journal Article
    微机电系统(MEMS)开关已成为微型电子设备领域的关键组件,承诺在规模上取得前所未有的进步,功耗,和多功能性。这篇文献综述论文仔细研究了MEMS开关开发和应用中遇到的关键问题和挑战。全面调查包括关键方面,如材料选择,制造错综复杂,性能指标,包括切换时间和可靠性,以及这些开关对不同技术领域的影响。审查批判性地分析了设计参数的影响,执行机构,和材料特性对MEMS开关性能的影响。此外,它探索了最近的进步,突破,以及研究人员为应对这些挑战而提出的创新解决方案。现有文献的综合不仅阐明了MEMS开关技术的现状,而且为未来的研究途径铺平了道路。本文提出的研究结果为研究人员提供了宝贵的资源,工程师,和技术人员从事推进MEMS开关技术,提供对当前景观的见解,并在这个快速发展的领域指导未来的努力。
    Micro-Electro-Mechanical System (MEMS) switches have emerged as pivotal components in the realm of miniature electronic devices, promising unprecedented advancements in size, power consumption, and versatility. This literature review paper meticulously examines the key issues and challenges encountered in the development and application of MEMS switches. The comprehensive survey encompasses critical aspects such as material selection, fabrication intricacies, performance metrics including switching time and reliability, and the impact of these switches on diverse technological domains. The review critically analyzes the influence of design parameters, actuation mechanisms, and material properties on the performance of MEMS switches. Additionally, it explores recent advancements, breakthroughs, and innovative solutions proposed by researchers to address these challenges. The synthesis of the existing literature not only elucidates the current state of MEMS switch technology but also paves the way for future research avenues. The findings presented herein serve as a valuable resource for researchers, engineers, and technologists engaged in advancing MEMS switch technology, offering insights into the current landscape and guiding future endeavors in this rapidly evolving field.
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  • 文章类型: Journal Article
    人乳头瘤病毒16(HPV16)E2与细胞蛋白TopBP1和BRD4之间的相互作用是E2质粒分离功能所必需的。E2-TopBP1相互作用促进U2OS和N/Tert-1细胞中有丝分裂E2蛋白水平增加,以及通过HPV16(HFKHPV16)永生化的人包皮角质形成细胞。SIRT1脱乙酰化降低E2蛋白的稳定性,在这里我们证明了在有丝分裂过程中E2乙酰化的增加以TopBP1相互作用依赖性方式发生。促进E2有丝分裂稳定。p300介导E2乙酰化和乙酰化增加,由于E2在有丝分裂过程中以TopBP1相互作用依赖性方式关闭SIRT1功能,通过增加的p53稳定性和赖氨酸382的乙酰化,SIRT1去乙酰化的已知目标证实。SIRT1可以在生长中的细胞中与E2复合,但由于E2-TopBP1相互作用,在有丝分裂期间无法这样做;SIRT1也无法在有丝分裂E2野生型细胞中与p53复合,但可以在有丝分裂之外与p53复合。E2赖氨酸111和112是所有E2蛋白中高度保守的残基,我们证明了K111在有丝分裂过程中发生过度乙酰化,促进E2与拓扑异构酶1(Top1)的相互作用。我们证明K112泛素化促进有丝分裂过程中的E2蛋白酶体降解。E2-TopBP1相互作用促进CHK2的有丝分裂乙酰化,促进DNA损伤反应(DDR)的磷酸化和激活。结果提出了一种新的模型,其中E2-TopBP1复合物在有丝分裂期间使SIRT1失活,并激活DDR。这是一种新的HPV16激活DDR的机制,病毒生命周期的要求。
    目的:人类乳头瘤病毒(HPV)是所有人类癌症中约5%的病原体。虽然有预防性疫苗可以显著减轻后代的HPV疾病负担,目前尚无抗病毒策略可用于治疗HPV癌症.为了产生这样的试剂,我们必须更多地了解HPV的生命周期,特别是关于病毒与宿主的相互作用。这里,我们描述了由HPV16E2蛋白与控制脱乙酰酶SIRT1功能的宿主蛋白TopBP1相互作用产生的新型有丝分裂复合物。E2-TopBP1相互作用在有丝分裂期间破坏SIRT1功能,以增强病毒和宿主蛋白的乙酰化和稳定性。我们还证明E2-TopBP1相互作用激活DDR。这种新型复合物对于HPV16生命周期是必不可少的,并且代表了一种新型的抗病毒治疗靶标。
    An interaction between human papillomavirus 16 (HPV16) E2 and the cellular proteins TopBP1 and BRD4 is required for E2 plasmid segregation function. The E2-TopBP1 interaction promotes increased mitotic E2 protein levels in U2OS and N/Tert-1 cells, as well as in human foreskin keratinocytes immortalized by HPV16 (HFK + HPV16). SIRT1 deacetylation reduces E2 protein stability and here we demonstrate that increased E2 acetylation occurs during mitosis in a TopBP1 interacting-dependent manner, promoting E2 mitotic stabilization. p300 mediates E2 acetylation and acetylation is increased due to E2 switching off SIRT1 function during mitosis in a TopBP1 interacting-dependent manner, confirmed by increased p53 stability and acetylation on lysine 382, a known target for SIRT1 deacetylation. SIRT1 can complex with E2 in growing cells but is unable to do so during mitosis due to the E2-TopBP1 interaction; SIRT1 is also unable to complex with p53 in mitotic E2 wild-type cells but can complex with p53 outside of mitosis. E2 lysines 111 and 112 are highly conserved residues across all E2 proteins and we demonstrate that K111 hyper-acetylation occurs during mitosis, promoting E2 interaction with Topoisomerase 1 (Top1). We demonstrate that K112 ubiquitination promotes E2 proteasomal degradation during mitosis. E2-TopBP1 interaction promotes mitotic acetylation of CHK2, promoting phosphorylation and activation of the DNA damage response (DDR). The results present a new model in which the E2-TopBP1 complex inactivates SIRT1 during mitosis, and activates the DDR. This is a novel mechanism of HPV16 activation of the DDR, a requirement for the viral life cycle.
    OBJECTIVE: Human papillomaviruses (HPVs) are causative agents in around 5% of all human cancers. While there are prophylactic vaccines that will significantly alleviate HPV disease burden on future generations, there are currently no anti-viral strategies available for the treatment of HPV cancers. To generate such reagents, we must understand more about the HPV life cycle, and in particular about viral-host interactions. Here, we describe a novel mitotic complex generated by the HPV16 E2 protein interacting with the host protein TopBP1 that controls the function of the deacetylase SIRT1. The E2-TopBP1 interaction disrupts SIRT1 function during mitosis in order to enhance acetylation and stability of viral and host proteins. We also demonstrate that the E2-TopBP1 interaction activates the DDR. This novel complex is essential for the HPV16 life cycle and represents a novel anti-viral therapeutic target.
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  • 文章类型: Journal Article
    默认模式网络(DMN)位于固有连通性的主要梯度的异型端,与感觉运动皮层最大限度地分离。它支持基于记忆的认知,包括从感官输入中检索概念和评估信息的能力,并在内部产生有意义的状态;然而,能够支持这些不同检索模式的DMN的功能组织尚不清楚.我们使用功能磁共振成像来检查DMN子系统内的激活是否根据检索需求而有所不同,或要检索的关联类型,或者两者兼而有之。在图片关联任务中,参与者检索到本质上是语境或情感的语义关联。要求参与者避免产生偶发关联。在生成阶段,这些关联是从一幅小说中检索到的,在切换阶段,参与者为同一图像检索了一个新的关联。语义上下文和情感试验与可分离的DMN子网络相关,指示DMN组织的关键维度与被访问的关联类型相关。额颞叶和内侧颞叶DMN表现出对情感和语义上下文关联的偏爱,分别。相对于生成阶段,转换阶段招募的集群更接近主梯度的异峰顶点-皮质层次结构,将单峰和异峰区域分开。关联类型之间的这种效应没有差异。相反,记忆转换与一个与受控内部认知相关的不同子网络相关。这些发现描绘了不同类型的关联的DMN招募的不同模式,但在反映检索需求的任务中却有共同的响应。
    The default mode network (DMN) lies towards the heteromodal end of the principal gradient of intrinsic connectivity, maximally separated from the sensory-motor cortex. It supports memory-based cognition, including the capacity to retrieve conceptual and evaluative information from sensory inputs, and to generate meaningful states internally; however, the functional organisation of DMN that can support these distinct modes of retrieval remains unclear. We used fMRI to examine whether activation within subsystems of DMN differed as a function of retrieval demands, or the type of association to be retrieved, or both. In a picture association task, participants retrieved semantic associations that were either contextual or emotional in nature. Participants were asked to avoid generating episodic associations. In the generate phase, these associations were retrieved from a novel picture, while in the switch phase, participants retrieved a new association for the same image. Semantic context and emotion trials were associated with dissociable DMN subnetworks, indicating that a key dimension of DMN organisation relates to the type of association being accessed. The frontotemporal and medial temporal DMN showed a preference for emotional and semantic contextual associations, respectively. Relative to the generate phase, the switch phase recruited clusters closer to the heteromodal apex of the principal gradient-a cortical hierarchy separating unimodal and heteromodal regions. There were no differences in this effect between association types. Instead, memory switching was associated with a distinct subnetwork associated with controlled internal cognition. These findings delineate distinct patterns of DMN recruitment for different kinds of associations yet common responses across tasks that reflect retrieval demands.
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  • 文章类型: Journal Article
    在西非接受抗逆转录病毒治疗的21167人中,过渡到dolutegravir的时间线和模式各不相同。最初报告的性别差异随着时间的推移往往会随着持续的差异而赶上,根据提供艾滋病毒诊所的说法。促进dolutegravir转换的关键因素是男性,年龄<50岁,病毒抑制,和不基于蛋白酶抑制剂的方案。
    Transition to dolutegravir among 21 167 individuals experienced in antiretroviral therapy in West Africa showed heterogeneous timelines and patterns. Initially reported sex disparities tended to catch up over time with persisting disparities, according to contributing HIV clinics. Key factors facilitating dolutegravir switch were male sex, age <50 years, viral suppression, and regimens not based on protease inhibitors.
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  • 文章类型: Journal Article
    作为可编程交换机或SmartNIC卡的关键模块,报文处理流水线承担报文转发和处理的任务。然而,基于FPGA的SmartNIC的当前管道不灵活,相关的可重构商用设备设计是闭源的。为了解决这个问题,本文提出了一种高性能的可重构流水线设计,具有完全可重新配置的匹配动作单元,通过其灵活的重新配置来支持各种网络功能。可以重新配置匹配键的字段和匹配表的大小,而无需重新编译HDL代码或修改硬件。流水线的处理规则和动作指令可以由配置模块在运行时动态地安装。我们使用VirtexUltraScale+XCU200-2FSGD2104EFPGA在XilinxAlveoU200板上实现了我们的设计,并表明所设计的管道支持快速重新配置以实现新的网络功能,并且所设计的管道的吞吐量达到100Gbps且延迟较低。
    As the key module of programmable switches or the SmartNIC card, the packet processing pipeline undertakes the task of packet forwarding and processing. However, the current pipeline for the FPGA-based SmartNIC is inflexible, and the related reconfigurable commercial device designs are closed-source. To solve this problem, this paper proposes a high-performance reconfigurable pipeline design, which has fully reconfigurable match-action units, supporting various network functions by its flexible reconfiguration. The fields of the match key and the size of the match table can be reconfigured without recompiling the HDL code or modifying the hardware. The processing rules and action instructions for the pipeline can be dynamically installed by the configuration module at runtime. We implement our design on the Xilinx Alveo U200 board with a Virtex UltraScale+ XCU200-2FSGD2104E FPGA and show that the designed pipeline supports fast reconfiguration to implement new network functions and that the throughput of the designed pipeline reaches 100 Gbps with low latency.
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