Restriction

限制
  • 文章类型: Journal Article
    损伤是住院和急诊(ED)就诊的主要原因之一。COVID-19的限制确保了加拿大人的安全,但也对健康结果产生了负面影响,包括某些伤害的增加。国际上已经报道了这些趋势的差异,但是证据是分散的,需要更好地理解,以确定公共教育的机会并为未来的疫情做好准备。
    进行了范围审查,以综合有关COVID-19限制对加拿大意外伤害的影响的证据,与其他国家相比。
    调查来自任何国家的COVID-19所有年龄段的意外伤害的研究,在2019年12月至2021年7月期间以英文出版,包括在内。排除故意伤害和/或先前的大流行。搜索了四个数据库(MEDLINE,Embase,WebofScience,SPORTDiscus),并进行了灰色文献检索。
    搜索产生了3041个结果,并选择189篇文献进行提取。灰色文献检索共纳入41例报告。最终研究包括来自以下国家的研究:欧洲(n=85);北美(n=44);亚洲(n=32);大洋洲(n=12);非洲(n=8);南美(n=4);和多国家(n=4)。大多数研究报告男性受伤/创伤的发生率较高,研究的平均年龄为46岁。最常见的伤害机制是:机动车碰撞(MVCs;n=134),跌倒(n=104),体育/娱乐(n=65),非机动车(n=31),和职业(n=24)。在家发生的伤害(例如,园艺,家装项目)增加,以及在学校发生的伤害,工作场所,公共空间减少。总的来说,职业伤害和运动/娱乐造成的伤害有所减少,行人相关,和粉碎/陷阱事件。在MVCs和烧伤中也看到了下降,然而,在大流行期间,这些原因造成的伤害严重程度有所增加。观察到中毒增加,非机动车碰撞,撕裂,溺水,蹦床受伤;和,异物摄入。
    这次审查的结果可以为干预措施和政策提供信息,以确定公共教育中的差距,促进家庭安全,并减少未来居家措施对加拿大人和全世界人口意外伤害的负面影响。
    UNASSIGNED: Injuries are among the leading causes for hospitalizations and emergency department (ED) visits. COVID-19 restrictions ensured safety to Canadians, but also negatively impacted health outcomes, including increasing rates of certain injuries. These differences in trends have been reported internationally however the evidence is scattered and needs to be better understood to identify opportunities for public education and to prepare for future outbreaks.
    UNASSIGNED: A scoping review was conducted to synthesize evidence regarding the impact of COVID-19 restrictions on unintentional injuries in Canada, compared to other countries.
    UNASSIGNED: Studies investigating unintentional injuries among all ages during COVID-19 from any country, published in English between December 2019 and July 2021, were included. Intentional injuries and/or previous pandemics were excluded. Four databases were searched (MEDLINE, Embase, Web of Science, SPORTDiscus), and a gray literature search was also conducted.
    UNASSIGNED: The search yielded 3,041 results, and 189 articles were selected for extraction. A total of 41 reports were included from the gray literature search. Final studies included research from: Europe (n = 85); North America (n = 44); Asia (n = 32); Oceania (n = 12); Africa (n = 8); South America (n = 4); and multi-country (n = 4). Most studies reported higher occurrence of injuries/trauma among males, and the average age across studies was 46 years. The following mechanisms of injury were reported on most frequently: motor vehicle collisions (MVCs; n = 134), falls (n = 104), sports/recreation (n = 65), non-motorized vehicle (n = 31), and occupational (n = 24). Injuries occurring at home (e.g., gardening, home improvement projects) increased, and injuries occurring at schools, workplaces, and public spaces decreased. Overall, decreases were observed in occupational injuries and those resulting from sport/recreation, pedestrian-related, and crush/trap incidents. Decreases were also seen in MVCs and burns, however the severity of injury from these causes increased during the pandemic period. Increases were observed in poisonings, non-motorized vehicle collisions, lacerations, drownings, trampoline injuries; and, foreign body ingestions.
    UNASSIGNED: Findings from this review can inform interventions and policies to identify gaps in public education, promote safety within the home, and decrease the negative impact of future stay-at-home measures on unintentional injury among Canadians and populations worldwide.
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  • 文章类型: Journal Article
    执行功能,特别是抑制,显著影响团队运动的决策和行为调节。然而,必须对个人球员的特征进行更多的研究,如经验和运动技能。这项研究评估了积累的实践经验如何缓解对不同任务难度水平的抑制。
    44名大学生(年龄:20.36±3.13岁)参加了这项研究,其中两次:一次遵循标准的1×1篮球规则(“常规练习”),而另一个强加的马达,temporal,和空间限制(“限制实践”)。通过对具有相似技能水平的配对进行分组来控制功能难度。使用了Flanker和Go-Nogo任务。
    增加复杂性使认知表现恶化(抑制)。与“常规实践”相比,“限制实践”在两种测试中的表现明显较慢且准确性较低(p<0.001)。经验对测试速度和准确性有积极影响(p<0.001)。
    在运动中,急性认知影响与任务的复杂性和运动员的认知资源有着内在的联系。在这个意义上,必须单独调整任务的认知需求,考虑每个运动员的特定认知能力和能力。
    UNASSIGNED: Executive functions, notably inhibition, significantly influence decision-making and behavioral regulation in team sports. However, more research must be conducted on individual player characteristics such as experience and motor skills. This study assessed how accumulated practical experience moderates inhibition in response to varying task difficulty levels.
    UNASSIGNED: Forty-four university students (age: 20.36 ± 3.13 years) participated in this study with two sessions: one followed standard 1 × 1 basketball rules (\"Regular Practice\"), while the other imposed motor, temporal, and spatial restrictions (\"Restriction Practice\"). Functional difficulty was controlled by grouping pairs with similar skill levels. Flanker and Go-Nogo tasks were used.
    UNASSIGNED: Increasing complexity worsened cognitive performance (inhibition). \"Restriction Practice\" showed a significantly slower and less accurate performance in both tests than \"Regular Practice\" (p < 0.001). Experience positively impacted test speed and accuracy (p < 0.001).
    UNASSIGNED: In sports, acute cognitive impacts are intrinsically linked to the task\'s complexity and the athlete\'s cognitive resources. In this sense, it is essential to adjust individually the cognitive demands of the tasks, considering each athlete\'s specific cognitive abilities and capacities.
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  • 文章类型: Journal Article
    背景:单吻合术十二指肠回肠转行袖状胃切除术(SADI-S)是3级肥胖患者推荐的限制性/低吸收手术。出于安全原因,通过首先进行袖状胃切除术(SG),可以将SADI-S分为两步程序。这种逐步的方法还提供了前所未有的机会来解开由每个组件触发的减肥机制。目的是比较接受SADI-S或袖状胃切除术(SG)作为SADI-S第一步的3级肥胖患者的体重轨迹和餐后内分泌和代谢反应。
    方法:在三级转诊公立学术医院提交SADI-S(n=7)或SG(n=7)的受试者,术前以及术后3,6和12个月时接受了人体测量评估和液体混合餐耐量试验(MMTT).
    结果:人体测量参数,以及代谢和微量营养素概况,组间没有显著差异,无论是手术前还是手术后。空腹或餐后血糖无显著差异,胰岛素,C-肽,ghrelin,接受SADI-S和SG的受试者在MMTT期间的胰岛素分泌率(ISR)和胰岛素清除率。没有失去后续行动。
    结论:限制性成分似乎是在SADI-S后的前12个月观察到的体重减轻和代谢适应的主要驱动因素,考虑到体重轨迹和代谢谱与SG没有差异。该数据为外科医生选择两步SADI-S提供了支持,而不会损害减肥结果。
    BACKGROUND: Single anastomosis duodeno-ileal bypass with sleeve gastrectomy (SADI-S) is a restrictive/hypoabsorptive procedure recommended for patients with obesity class 3. For safety reasons, SADI-S can be split into a two-step procedure by performing a sleeve gastrectomy (SG) first. This stepwise approach also provides an unprecedented opportunity to disentangle the weight loss mechanisms triggered by each component. The objective was to compare weight trajectories and post-prandial endocrine and metabolic responses of patients with obesity class 3 submitted to SADI-S or SG as the first step of SADI-S.
    METHODS: Subjects submitted to SADI-S (n = 7) or SG (n = 7) at a tertiary referral public academic hospital underwent anthropometric evaluation and a liquid mixed meal tolerance test (MMTT) pre-operatively and at 3, 6, and 12 months post-operatively.
    RESULTS: Anthropometric parameters, as well as metabolic and micronutrient profiles, were not significantly different between groups, neither before nor after surgery. There were no significant differences in fasting or post-prandial glucose, insulin, C-peptide, ghrelin, insulin secretion rate, and insulin clearance during the MMTT between subjects submitted to SADI-S and SG. There was no lost to follow-up.
    CONCLUSIONS: The restrictive component seems to be the main driver for weight loss and metabolic adaptations observed during the first 12 months after SADI-S, given that the weight trajectories and metabolic profiles do not differ from SG. These data provide support for surgeons\' choice of a two-step SADI-S without jeopardizing the weight loss outcomes.
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  • 文章类型: Journal Article
    充足的营养是实现最佳生长和神经发育所必需的。生长是一个自然和预期的过程,伴随着神经发育的快速发展而发生。串行重量,长度,头围生长措施对于监测发展至关重要,尽管确定与正常生长的病理偏差可能会带来挑战。适当的生长评估需要考虑长度的尺寸范围,头围,和重量是预期和适当的。由于遗传差异和发病率,健康婴儿的生长和有生长改变的婴儿之间存在相当大的重叠。父母往往过于关注那些在成长图上表现不佳的孩子,并且经常需要放心。因此,当增长与增长图曲线大致平行时,即使它们的大小小于特定的百分位数,也不鼓励使用诸如“增长不良”或“增长失败”之类的术语。不应设置特定的百分位数作为增长目标;应预期个体差异。婴儿出生时的大小是重要的信息,超出了通常使用的预后预测,与胎龄小或大相比。出生体重越低,营养储备越低,营养支持的需求就越重要。与足月婴儿相比,足月相当年龄的早产儿体内脂肪百分比较高,但这种情况在接下来的几个月里会减少。目前的研究结果支持专家建议早产儿应该成长,出生后早期体重减轻后,类似于胎儿和足月出生的婴儿,这转化为与增长图表曲线大致平行的增长。没有必要在最佳认知和最佳未来健康之间进行权衡。每个高危婴儿都需要个性化的营养和生长评估。这篇综述旨在在更广泛的因果框架内研究早产儿和足月婴儿父母的婴儿生长期望和信息传递。
    Adequate nutrition is necessary for achieving optimal growth and neurodevelopment. Growth is a natural and expected process that happens concomitantly with rapid advancements in neurodevelopment. Serial weight, length, and head circumference growth measures are essential for monitoring development, although identifying pathological deviations from normal growth can pose challenges. Appropriate growth assessments require considerations that a range of sizes for length, head circumference, and weight are expected and appropriate. Because of genetic differences and morbidities, there is a considerable overlap between the growth of healthy infants and those with growth alterations. Parents tend to be over-concerned about children who plot low on growth charts and often need reassurance. Thus, the use of terms such as \"poor\" growth or growth \"failure\" are discouraged when growth is approximately parallel to growth chart curves even if their size is smaller than specific percentiles. No specific percentile should be set as a growth goal; individual variability should be expected. An infant\'s size at birth is important information that goes beyond the common use of prognostic predictions of appropriate compared with small or large for gestational age. The lower the birthweight, the lower the nutrient stores and the more important the need for nutrition support. Compared to term infants, preterm infants at term-equivalent age have a higher percentage of body fat, but this diminishes over the next months. Current research findings support expert recommendations that preterm infants should grow, after early postnatal weight loss, similar to the fetus and then term-born infants, which translates to growth approximately parallel to growth chart curves. There is no need for a trade-off between optimum cognition and optimum future health. Each high-risk infant needs individualized nutrition and growth assessments. This review aims to examine infant growth expectations and messaging for parents of preterm and term-born infants within the broader causal framework.
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  • 文章类型: Journal Article
    背景:了解影响个体健康决策的因素是一个动态的研究问题。特别是,在中国宣布放松对COVID-19疫情的管制后,健康风险迅速升级。“不再受控制”的病毒和信息流行病的融合创造了一个独特的社会时期,在此期间,多种因素可能会影响人们的决策。在这些因素中,老年人的预防意图,作为一个易受影响的健康团体,值得特别注意。
    目的:本研究旨在探讨老年人从事预防行为的意向及其影响因素,包括社会,媒体,和个人因素,在继后时代的背景下。借鉴沟通的结构影响模型,本研究检验了3种不同类型媒体曝光在认知和结构社会资本与保护行为意向之间的潜在中介作用,以及负面情绪在社会资本和媒体曝光之间的调节作用。
    方法:在本研究中,网络调查被用来收集自我报告的社会资本定量数据,媒体曝光,负面情绪,以及在中国60岁以上(N=399)的老年人中预防COVID-19的意图。
    结果:结果表明,认知社会资本显著影响保护行为意图(P<.001)。手机暴露发挥了额外的影响作用(P<.001)。相比之下,报纸、广播和电视暴露介导了结构性社会资本对保护行为意向的影响(P<.001)。此外,负面情绪在认知社会资本与手机暴露的关系中起调节作用(P<.001)。
    结论:这项研究表明,在各种媒体渠道中使用量身定制的传播策略可以有效地提高应对中国主要流行病的老年人的健康意识。考虑到他们多样化的社会资本特征和情绪状态。
    BACKGROUND: Understanding the factors influencing individuals\' health decisions is a dynamic research question. Particularly, after China announced the deregulation of the COVID-19 epidemic, health risks escalated rapidly. The convergence of \"no longer controlled\" viruses and the infodemic has created a distinctive social period during which multiple factors may have influenced people\'s decision-making. Among these factors, the precautionary intentions of older individuals, as a susceptible health group, deserve special attention.
    OBJECTIVE: This study aims to examine the intention of older adults to engage in preventive behaviors and the influencing factors, including social, media, and individual factors, within the context of the postepidemic era. Drawing upon the structural influence model of communication, this study tests the potential mediating roles of 3 different types of media exposure between cognitive and structural social capital and protective behavior intention, as well as the moderating role of negative emotions between social capital and media exposure.
    METHODS: In this study, a web survey was used to collect self-reported quantitative data on social capital, media exposure, negative emotions, and the intention to prevent COVID-19 among older adults aged ≥60 years (N=399) in China.
    RESULTS: The results indicate that cognitive social capital significantly influenced protective behavior intention (P<.001), with cell phone exposure playing an additional impactful role (P<.001). By contrast, newspaper and radio exposure and television exposure mediated the influence of structural social capital on protective behavior intention (P<.001). Furthermore, negative emotions played a moderating role in the relationship between cognitive social capital and cell phone exposure (P<.001).
    CONCLUSIONS: This study suggests that using tailored communication strategies across various media channels can effectively raise health awareness among older adults dealing with major pandemics in China, considering their diverse social capital characteristics and emotional states.
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  • 文章类型: Preprint
    霍乱弧菌面临的主要挑战是噬菌体(噬菌体)在水生水库和人类宿主感染期间不断捕食。为了克服噬菌体捕食,霍乱弧菌已经进化出无数的噬菌体防御系统。尽管已经发现了几种新的防御系统,鉴于分离出的感染霍乱弧菌的噬菌体相对较少,我们假设更多的是在霍乱弧菌中编码的。使用霍乱弧菌基因组文库,我们确定了一个IV型限制系统,该系统由弧菌致病性岛2的16kB区域内的两个基因组成,我们将其命名为TgvA和TgvB(VPI-2的T型I型嵌入gmrSD样系统)。我们表明,TgvA和TgvB都是通过靶向糖基化的5-羟甲基胞嘧啶(5hmC)来防御T2,T4和T6所必需的。失去葡萄糖修饰的T2或T4噬菌体对TgvAB防御具有抗性,但表现出明显的进化权衡,变得容易受到靶向未糖基化5hmC的其他IV型限制系统的影响。我们表明,VPI-2中编码了其他噬菌体防御基因,可防止其他噬菌体,例如T3,secΦ18,secΦ27和λ。我们的研究发现了一种新型的霍乱弧菌IV型限制系统,增加我们对霍乱弧菌的进化和生态学的理解,同时强调限制系统和噬菌体基因组修饰之间的进化相互作用。
    细菌不断被噬菌体(噬菌体)取代。为了抵消这种掠夺,细菌已经进化出无数的防御系统。这些系统中的一些通过识别噬菌体DNA上存在的独特碱基修饰来特异性消化感染噬菌体。这里,我们发现了一种在霍乱弧菌中编码的IV型限制系统,我们将其命名为TgvAB,并证明它可以识别并限制具有5-羟甲基胞嘧啶糖基化DNA的噬菌体。此外,对TgvAB抗性的进化使噬菌体对其他IV型限制系统敏感,证明了一个重要的进化权衡。这些结果增强了我们对霍乱弧菌的进化以及更广泛的细菌如何逃避噬菌体捕食的理解。
    A major challenge faced by Vibrio cholerae is constant predation by bacteriophage (phage) in aquatic reservoirs and during infection of human hosts. To overcome phage predation, V. cholerae has evolved a myriad of phage defense systems. Although several novel defense systems have been discovered, we hypothesized more were encoded in V. cholerae given the relative paucity of phage that have been isolated which infect this species. Using a V. cholerae genomic library, we identified a Type IV restriction system consisting of two genes within a 16kB region of the Vibrio pathogenicity island-2 that we name TgvA and TgvB (Type I-embedded gmrSD-like system of VPI-2). We show that both TgvA and TgvB are required for defense against T2, T4, and T6 by targeting glucosylated 5-hydroxymethylcytosine (5hmC). T2 or T4 phages that lose the glucose modification are resistant to TgvAB defense but exhibit a significant evolutionary tradeoff becoming susceptible to other Type IV restriction systems that target unglucosylated 5hmC. We show that additional phage defense genes are encoded in VPI-2 that protect against other phage like T3, secΦ18, secΦ27 and λ. Our study uncovers a novel Type IV restriction system in V. cholerae, increasing our understanding of the evolution and ecology of V. cholerae while highlighting the evolutionary interplay between restriction systems and phage genome modification.
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  • 文章类型: Journal Article
    限制行动是政策指令的主要重点,以减少COVID-19在老年养老院的传播。在这篇文章中,我们重新思考限制的主导框架,通过对良好照顾的政治和民族志关注空间扩展和居民之间的相互依存关系的批判性审查,护理人员,和辅助技术。根据南澳大利亚两个护理机构的人种学观察,分析老年护理政策和国家对老年护理的调查,和相关媒体报道,我们研究如何限制行动,误解为一种好的护理形式,抑制了居民的身体和社会需求,破坏了居民流动性的有利组合。我们建议与年老体弱的居民并肩行走,为在危机时期思考护理和重新启用关系护理方法提供了新的方法。
    Restricting movement is a major focus in policy directives to reduce the spread of COVID-19 in aged care homes. In this article, we rethink dominant framing of restriction through a critical examination of the politics of good care and ethnographic attention to spatial extensions and interdependencies between residents, care workers, and assistive technologies. Drawing on ethnographic observations in two South Australian care facilities, analysis of aged care policies and national inquiries into aged care, and relevant media reporting, we examine how restriction to movement, misconceptualized as a good form of care, has suppressed residents\' physical and social needs and ruptured abling assemblages of resident mobility. We propose that walking alongside aged and frail residents offers new ways for thinking about care and re-abling relational approaches to care in times of crisis.
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  • 文章类型: Editorial
    暂无摘要。
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  • 文章类型: Journal Article
    干扰素诱导的跨膜蛋白(IFITMs)是抑制各种包膜病毒感染的蛋白质家族。虽然它们的一般抑制机制似乎是非特异性的,包括收紧膜结构以防止病毒包膜和细胞膜之间的融合,许多研究强调了病毒包膜蛋白在确定病毒对IFITM的易感性中的重要性。包膜蛋白的突变可能导致病毒逃避与IFITM蛋白的直接相互作用,或通过改变病毒进入途径而导致间接抗性。允许病毒调节其对IFITM的暴露。在更广泛的背景下,病毒包膜蛋白的性质及其与IFITMs的相互作用可以在适应性免疫的背景下发挥关键作用,导致病毒包膜蛋白更容易被抗体中和。这些观察背后的确切机制仍不清楚,在这一领域的进一步研究可能有助于更好地了解IFITMs如何控制病毒感染。
    Interferon-induced transmembrane proteins (IFITMs) are a family of proteins which inhibit infections of various enveloped viruses. While their general mechanism of inhibition seems to be non-specific, involving the tightening of membrane structures to prevent fusion between the viral envelope and cell membrane, numerous studies have underscored the importance of viral envelope proteins in determining the susceptibility of viruses to IFITMs. Mutations in envelope proteins may lead to viral escape from direct interaction with IFITM proteins or result in indirect resistance by modifying the viral entry pathway, allowing the virus to modulate its exposure to IFITMs. In a broader context, the nature of viral envelope proteins and their interaction with IFITMs can play a crucial role in the context of adaptive immunity, leading to viral envelope proteins that are more susceptible to antibody neutralization. The precise mechanisms underlying these observations remain unclear, and further studies in this field could contribute to a better understanding of how IFITMs control viral infections.
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  • 文章类型: Journal Article
    流感病毒已成为全球最流行和研究的病毒之一。因此,有关于流感病毒生命周期和发病机制的大量信息。然而,关于流感病毒发病机制和疾病严重程度的决定因素还有很多尚待了解。流感病毒利用宿主因子来促进其生命周期的每个步骤。反过来,宿主在每个步骤中部署抑制或限制流感病毒生命周期的抗病毒或限制因子.在病毒感染的细胞中可以存在两大类宿主限制因子:(1)由干扰素刺激的基因(ISG)编码和(2)由不被干扰素刺激的组成型表达的基因(非ISG)编码。已知有数百个ISG,和许多,例如,Mx,IFITMs,和TRIMs,已被表征为通过(1)阻断病毒进入或后代释放来限制流感病毒在其生命周期的不同阶段的感染,(2)隔离或降解病毒成分,干扰病毒合成和组装,或(3)加强宿主的先天防御。此外,许多非ISG,例如,亲环,ncRNAs,和HDAC,已被鉴定和表征为通过相似的机制在不同生命周期阶段限制流感病毒感染。这篇综述概述了这些ISG和非ISG,以及流感病毒如何逃脱它们施加的限制,旨在提高我们对流感病毒宿主限制机制的理解。
    Influenza virus has been one of the most prevalent and researched viruses globally. Consequently, there is ample information available about influenza virus lifecycle and pathogenesis. However, there is plenty yet to be known about the determinants of influenza virus pathogenesis and disease severity. Influenza virus exploits host factors to promote each step of its lifecycle. In turn, the host deploys antiviral or restriction factors that inhibit or restrict the influenza virus lifecycle at each of those steps. Two broad categories of host restriction factors can exist in virus-infected cells: (1) encoded by the interferon-stimulated genes (ISGs) and (2) encoded by the constitutively expressed genes that are not stimulated by interferons (non-ISGs). There are hundreds of ISGs known, and many, e.g., Mx, IFITMs, and TRIMs, have been characterized to restrict influenza virus infection at different stages of its lifecycle by (1) blocking viral entry or progeny release, (2) sequestering or degrading viral components and interfering with viral synthesis and assembly, or (3) bolstering host innate defenses. Also, many non-ISGs, e.g., cyclophilins, ncRNAs, and HDACs, have been identified and characterized to restrict influenza virus infection at different lifecycle stages by similar mechanisms. This review provides an overview of those ISGs and non-ISGs and how the influenza virus escapes the restriction imposed by them and aims to improve our understanding of the host restriction mechanisms of the influenza virus.
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