RSA

RSA
  • 文章类型: Journal Article
    目的:围产期抑郁症状对出生父母及其后代具有广泛而持久的健康影响。围产期抑郁症患病率的上升凸显了对影响妊娠期抑郁症状的因素进行研究的必要性。和出生后早期的轨迹。以生物生态系统理论为基础,这项纵向多方法研究了产前生物生态因素是否能预测妊娠至产后36个月的抑郁症状.
    方法:参与者为162名孕妇,过度采样高度情绪失调,谁在妊娠晚期完成了生活压力访谈和生理评估,并在五个时间点完成了抑郁的自我报告测量(妊娠晚期,出生后48小时内,产后7、18和36个月)。使用多水平模型来测试研究目标。
    结果:参与者在妊娠晚期表现出最高程度的抑郁症状,随着时间的推移,抑郁症状轨迹也有很大的变化。下静息呼吸窦性心律失常(RSA),副交感神经系统功能的指标,在妊娠晚期,并发抑郁症状的发生率较高.与伴侣关系相关的更高水平的压力,金融,和健康同时与怀孕期间抑郁症状增加和抑郁症状随着时间的推移而减少相关。具体来说,抑郁症状仅在报告怀孕期间压力较高的个体中减少。
    结论:尽管以生物生态系统理论为基础,这项研究没有评估宏观系统.
    结论:这项研究的结果强调了围产期健康多水平预测因子的重要性,并强调了在围产期过渡期间预防抑郁和促进健康的潜在目标。
    OBJECTIVE: Depressive symptoms during the perinatal period have broad and enduring health implications for birthing parents and their offspring. Rising prevalence rates of perinatal depression highlight the need for research examining factors influencing depressive symptoms during pregnancy, and trajectories during the early postnatal period. Grounded in bioecological systems theory, this longitudinal multimethod study examined whether prenatal bioecological factors predict depressive symptoms from pregnancy to 36 months postpartum.
    METHODS: Participants were 162 pregnant individuals, oversampled for high emotion dysregulation, who completed a life stress interview and physiological assessment during the 3rd trimester and a self-report measure of depression at five time-points (3rd trimester, within 48 h of birth, 7, 18, and 36 months postpartum). Multilevel models were used to test study aims.
    RESULTS: Participants exhibited the highest levels of depressive symptoms at 3rd trimester, and substantial variability in depressive symptom trajectories over time. Lower resting respiratory sinus arrhythmia (RSA), an index of parasympathetic nervous system functioning, in the 3rd trimester was associated with higher concurrent depressive symptoms. Higher levels of stress related to partner relationships, finances, and health were concurrently associated with more depressive symptoms during pregnancy and decreases in depressive symptoms over time. Specifically, depressive symptoms decreased only for individuals who reported high levels of stress during pregnancy.
    CONCLUSIONS: Although grounded in bioecological systems theory, this study did not assess the macrosystem.
    CONCLUSIONS: Results of this study underscore the importance of multilevel predictors of perinatal health and highlights potential targets for preventing depression and promoting well-being during the perinatal transition.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    滋养细胞的异常侵入能力被广泛认为是RSA的主要机制。最近,IGF2BP3由于其对细胞侵袭和迁移的影响而与各种癌症有关。然而,IGF2BP3是否参与RSA的发生以及它在RSA发展中所承担的特定功能仍然难以捉摸。在我们的研究中,我们首先采集RSA和正常妊娠个体的绒毛组织进行蛋白测序,然后通过Westernblot检测IGF2BP3的表达,qRT-PCR和免疫组织化学。其次,我们分析了单细胞数据(GSE214607),以评估IGF2BP3在侵袭性EVT滋养细胞中的表达.第三,我们利用慢病毒技术建立了稳定的IGF2BP3敲低的HTR-8/SVneo细胞系,并采用RNA-seq分析研究了IGF2BP3的GO功能途径富集。同时,IGF2BP3敲低对滋养细胞凋亡的影响,迁移,并通过功能实验评估了铁凋亡。此外,建立LPS诱导的流产动物模型,评价IGF2BP3在胎盘组织中的表达。在RSA患者的绒毛组织中观察到IGF2BP3的显著下调,随后的单细胞测序结果证实了这一发现。此外,提示IGF2BP3可能参与滋养细胞的迁移和凋亡过程。机制研究表明,IGF2BP3敲低可损害GPX4mRNA的稳定性,导致铁中毒的促进。最后,我们的研究观察到LPS诱导的流产动物模型胎盘绒毛组织中IGF2BP3表达的下调。我们的发现表明,IGF2BP3在RSA患者的绒毛组织中下调。机械上,IGF2BP3的下调可能通过促进GPX4介导的铁凋亡和抑制滋养细胞的侵袭和迁移来诱导RSA。本研究可能为RSA的发病机制提供新的靶点和研究方向。
    The aberrant invasive capability of trophoblast cells is widely acknowledged as a primary mechanism underlying RSA. Recently, IGF2BP3 has been implicated in various cancers due to its influence on cellular invasion and migration. However, whether IGF2BP3 involve in the occurrence of RSA and the specific functions it assumes in the development of RSA remain elusive. In our study, we firstly collected villous tissues from RSA and those with normal pregnancies individuals to performed Protein sequencing and then detected the expression of IGF2BP3 through Western blot, qRT-PCR and immunohistochemistry. Secondly, we analyzed the single-cell data (GSE214607) to assess the expression of IGF2BP3 in invasive EVT trophoblasts. Thirdly, we utilized lentivirus technology to establish HTR-8/SVneo cell lines with stable IGF2BP3 knockdown and RNA-seq analysis was employed to investigate the GO functional pathway enrichment of IGF2BP3. Meanwhile, the effect of IGF2BP3 knockdown on trophoblast cells apoptosis, migration, and ferroptosis was evaluated through functional experiments. Additionally, LPS-induced abortion animal model was constructed to evaluate IGF2BP3 expression in placental tissues. A significant downregulation of IGF2BP3 was observed in the villous tissues of RSA patient, a finding corroborated by subsequent single cell sequencing results. Furthermore, it suggested that IGF2BP3 may be involved in the migration and apoptotic processes of trophoblast cells. Mechanistic research indicated that IGF2BP3 knockdown could compromise GPX4 mRNA stability, leading to the promotion of ferroptosis. Finally, our investigation observed the down-regulation of IGF2BP3 expression in placental villous tissues of an LPS-induced abortion animal model. Our findings revealed that IGF2BP3 was downregulated in the villous tissues of RSA patients. Mechanically, down-regulation of IGF2BP3 may induce RSA by promoting GPX4-mediated ferroptosis and inhibiting trophoblast invasion and migration. Our study may provide new targets and research directions for the pathogenesis of RSA.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    名词和动词是语言的基本语法组成部分。一个关键问题是在大脑中是否以及在何处表示名词-动词划分。以前的研究主要使用单变量分析来研究这个问题。然而,单变量分析中激活脑区的解释可能与一般认知过程和/或混杂变量相混淆.我们通过对具有不同可想象性水平的汉语名词和动词进行部分表示相似性分析(RSA)来解决这些局限性。要求参与者在进行功能磁共振成像时完成1回语法类探针(GCP;显式测量)和1回单词探针(WP;隐式测量)任务。RSA结果表明,在消除了潜在的混杂变量后,左后颞中回(LpMTG)的激活模式与GCP任务中的语法类别代表性差异矩阵显着相关。此外,LpMTG与动词激活的额叶-顶叶区域不重叠名词或任务效果(CRP与WP)在单变量分析中。这些结果强调了LpMTG在区分名词和动词而不是一般认知过程中的作用。
    Nouns and verbs are fundamental grammatical building blocks of languages. A key question is whether and where the noun-verb division was represented in the brain. Previous studies mainly used univariate analyses to examine this issue. However, the interpretation of activated brain regions in univariate analyses may be confounded with general cognitive processing and/or confounding variables. We addressed these limitations by using partial representation similarity analysis (RSA) of Chinese nouns and verbs with different levels of imageability. Participants were asked to complete the 1-back grammatical class probe (GCP; an explicit measure) and the 1-back word probe (WP; an implicit measure) tasks while undergoing functional magnetic resonance imaging. RSA results showed that the activation pattern in the left posterior middle temporal gyrus (LpMTG) was significantly correlated with the grammatical class representational dissimilarity matrix in the GCP task after eliminating the potential confounding variables. Moreover, the LpMTG did not overlap with the frontal-parietal regions that were activated by verbs vs. nouns or the task effect (CRP vs. WP) in univariate analyses. These results highlight the role of LpMTG in distinguishing nouns from verbs rather than general cognitive processing.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    在人脑中,多需求(MD)网络在认知控制中起着关键作用,在侧额叶的核心部件,背侧额叶和外侧顶叶皮质,以及区分许多认知活动内容的多元活动模式。在行为猴子的前额叶皮层,不同的认知操作与非常不同的神经活动模式相关,虽然特定刺激的细节被编码为这些基本模式的小变化(Sigala等人,2008).这里,使用人类连接体项目的先进功能磁共振成像方法及其360区域皮质分裂,我们在MD激活模式中搜索了类似的结果.在每个包裹中,我们比较了三个任务的每个组合的多顶点模式(工作记忆,任务切换,和停止信号)和两个刺激类(面孔和建筑物)。尽管任务和刺激类别在每个皮层中都有区别,不同包裹的歧视强度差异很大。在MD区域强烈区分了三个任务的不同认知操作。刺激类别,相比之下,在初级和高级视觉皮层的大区域中被强烈区分,有趣的是,在与核心MD区域相邻的顶叶和额叶区域。在猴子身上,额叶神经元表现出强烈的非线性混合选择性模式,活动反映任务事件的特定连词。在我们的数据中,然而,混合选择性的证据有限;在整个大脑中,任务和刺激的判别在很大程度上线性结合,具有小的非线性分量。在MD地区,人类功能磁共振成像数据概括了非人类灵长类动物电生理数据的一些方面,但不是所有方面。
    In the human brain, a multiple-demand (MD) network plays a key role in cognitive control, with core components in lateral frontal, dorsomedial frontal and lateral parietal cortex, and multivariate activity patterns that discriminate the contents of many cognitive activities. In prefrontal cortex of the behaving monkey, different cognitive operations are associated with very different patterns of neural activity, while details of a particular stimulus are encoded as small variations on these basic patterns (Sigala et al, 2008). Here, using the advanced fMRI methods of the Human Connectome Project and their 360-region cortical parcellation, we searched for a similar result in MD activation patterns. In each parcel, we compared multivertex patterns for every combination of three tasks (working memory, task-switching, and stop-signal) and two stimulus classes (faces and buildings). Though both task and stimulus category were discriminated in every cortical parcel, the strength of discrimination varied strongly across parcels. The different cognitive operations of the three tasks were strongly discriminated in MD regions. Stimulus categories, in contrast, were most strongly discriminated in a large region of primary and higher visual cortex, and intriguingly, in both parietal and frontal lobe regions adjacent to core MD regions. In the monkey, frontal neurons show a strong pattern of nonlinear mixed selectivity, with activity reflecting specific conjunctions of task events. In our data, however, there was limited evidence for mixed selectivity; throughout the brain, discriminations of task and stimulus combined largely linearly, with a small nonlinear component. In MD regions, human fMRI data recapitulate some but not all aspects of electrophysiological data from nonhuman primates.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    功能性成分是食品生产和消费中的主要关注点。因为富含功能性成分的食品具有抗氧化能力,对保持消费者健康至关重要。平菇是富含功能性成分的食物之一。然而,其功能成分受多种因素的影响。本研究比较了在不同基质上生长的平菇的抗氧化能力:TEF(Trt1)的秸秆,大麦(Trt2),和小麦(Trt3),蚕豆壳(Trt4),和豌豆(Trt5),木屑(Trt6),和上述与1:1w/w(Trt7)的混合物。Trt7具有显著较高的自由基清除活性(RSA)(73.27%),维生素C(10.61毫克/100克),与其他治疗相比,维生素D(4.92mg/100g)。而RSA的最低值(44.24%),维生素C(5.39毫克/100克),在Trt2中发现了维生素D(1.21mg/100g)。结果表明,混合底物可能是功能有益的平菇的良好生长底物,并且可能是天然抗氧化剂的有希望的来源。
    Functional constituents are the main concern in food production and consumption. Because foods rich in functional constituents have antioxidant capacity and are important in keeping consumers healthy. Pleurotus ostreatus is among foods rich in functional constituents. However, its functional constituents are affected by various factors. This study compared the antioxidant capacity of P. ostreatus grown on different substrates: straws of tef (Trt1), barley (Trt2), and wheat (Trt3), husks of faba bean (Trt4), and field pea (Trt5), sawdust (Trt6), and the mixture of the above with 1:1 w/w (Trt7). Trt7 had significantly higher radical scavenging activity (RSA) (73.27%), vitamin C (10.61 mg/100 g), and vitamin D (4.92 mg/100 g) compared to other treatments. Whereas the lowest values of RSA (44.24%), vitamin C (5.39 mg/100 g), and vitamin D (1.21 mg/100 g) were found in Trt2. The results indicated that mixed substrate may be a good growth substrate for functionally beneficial P. ostreatus and could be a promising source of natural antioxidants.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    我们报告了对脑部病变患者PS的面部和物体处理所涉及的神经过程的调查,一个有据可查的纯获得性prosopagnosis病例.我们从PS和神经典型中收集了大量的高密度电生理记录数据集。使用代表性相似性分析,我们以一种有助于直接比较时间点的格式产生了时间分辨的大脑表示,不同的个体,和计算模型。为了了解PS腹侧的病变如何影响她大脑表征的时间演变,我们计算了她大脑表征的时间概括。我们发现PS的早期大脑表现与后来的表现有不同寻常的相似性,暗示对早期视觉模式的过度概括。为了揭示潜在的计算缺陷,我们将PS\'大脑表示与深度神经网络(DNN)的表示相关联。我们发现,与对照组相比,PS脑活动的基础计算与视觉DNN的早期层更相似。然而,与PS相比,神经典型的大脑表现变得更类似于模型的后几层。通过证明她的大脑表示与语义DNN的相似性较小,我们证实了PS在高级大脑表示中的缺陷。
    We report an investigation of the neural processes involved in the processing of faces and objects of brain-lesioned patient PS, a well-documented case of pure acquired prosopagnosia. We gathered a substantial dataset of high-density electrophysiological recordings from both PS and neurotypicals. Using representational similarity analysis, we produced time-resolved brain representations in a format that facilitates direct comparisons across time points, different individuals, and computational models. To understand how the lesions in PS\'s ventral stream affect the temporal evolution of her brain representations, we computed the temporal generalization of her brain representations. We uncovered that PS\'s early brain representations exhibit an unusual similarity to later representations, implying an excessive generalization of early visual patterns. To reveal the underlying computational deficits, we correlated PS\' brain representations with those of deep neural networks (DNN). We found that the computations underlying PS\' brain activity bore a closer resemblance to early layers of a visual DNN than those of controls. However, the brain representations in neurotypicals became more akin to those of the later layers of the model compared to PS. We confirmed PS\'s deficits in high-level brain representations by demonstrating that her brain representations exhibited less similarity with those of a DNN of semantics.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    背景:X射线计算机断层扫描(CT)是测量土壤中植物根系生长的有力工具。然而,用更大的罐子快速扫描,这是吞吐量优先的作物育种所必需的,导致高噪声水平,低分辨率,CT体积中的根段模糊。此外,虽然植物根系分割对于根系量化至关重要,关于分割嘈杂根段的详细条件研究很少。本研究旨在研究扫描时间和基于深度学习的图像质量恢复对CT体积中模糊水稻(Oryzasativa)根段语义分割的影响。
    结果:VoxResNet,基于卷积神经网络的逐体素残差网络,被用作分割模型。使用在33、66、150、300和600s的扫描时间获得的CT体积比较模型的训练效率。样本的学习效率相似,除了33和66s的扫描时间。此外,预测体积的噪声水平因扫描条件而异,说明扫描时间≥150s的噪声水平不影响模型训练效率。传统的过滤方法,如中值滤波和边缘检测,在任何条件下,培训效率都提高了约10%。然而,33和66s扫描样本的训练效率仍然相对较低。我们得出结论,扫描时间必须至少为150s,以免影响分割。最后,我们构建了150个s扫描CT体积的语义分割模型,骰子损失达到0.093。该模型无法预测侧根,这些数据不包括在训练数据中。这种限制将通过准备适当的训练数据来解决。
    结论:即使使用具有高噪声水平的快速扫描CT体积,也可以构建语义分割模型。鉴于扫描时间≥150s不影响分割结果,这种技术有望用于快速和低剂量扫描。这项研究提供了对具有高噪声水平的CT体积以外的图像的见解,这些图像在注释时具有挑战性。
    BACKGROUND: X-ray computed tomography (CT) is a powerful tool for measuring plant root growth in soil. However, a rapid scan with larger pots, which is required for throughput-prioritized crop breeding, results in high noise levels, low resolution, and blurred root segments in the CT volumes. Moreover, while plant root segmentation is essential for root quantification, detailed conditional studies on segmenting noisy root segments are scarce. The present study aimed to investigate the effects of scanning time and deep learning-based restoration of image quality on semantic segmentation of blurry rice (Oryza sativa) root segments in CT volumes.
    RESULTS: VoxResNet, a convolutional neural network-based voxel-wise residual network, was used as the segmentation model. The training efficiency of the model was compared using CT volumes obtained at scan times of 33, 66, 150, 300, and 600 s. The learning efficiencies of the samples were similar, except for scan times of 33 and 66 s. In addition, The noise levels of predicted volumes differd among scanning conditions, indicating that the noise level of a scan time ≥ 150 s does not affect the model training efficiency. Conventional filtering methods, such as median filtering and edge detection, increased the training efficiency by approximately 10% under any conditions. However, the training efficiency of 33 and 66 s-scanned samples remained relatively low. We concluded that scan time must be at least 150 s to not affect segmentation. Finally, we constructed a semantic segmentation model for 150 s-scanned CT volumes, for which the Dice loss reached 0.093. This model could not predict the lateral roots, which were not included in the training data. This limitation will be addressed by preparing appropriate training data.
    CONCLUSIONS: A semantic segmentation model can be constructed even with rapidly scanned CT volumes with high noise levels. Given that scanning times ≥ 150 s did not affect the segmentation results, this technique holds promise for rapid and low-dose scanning. This study offers insights into images other than CT volumes with high noise levels that are challenging to determine when annotating.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    背景:反向肩关节成形术是肩袖撕裂性关节病患者的既定手术。然而,肩胛骨下肌腱的固定仍然是一个有争议且经常被讨论的话题.这项前瞻性随机研究旨在评估反向肩关节置换术后肩胛骨下再固定的临床益处。
    方法:将50名患者(f:36,m:14)随机分配到“修复”(rep)或“未修复”(nrep)队列。术中,肩胛骨下肌腱在代表队列中用四根肌腱-肌腱缝线重新连接,而nrep队列中没有进行重新固定。术前以及术后12和36个月评估了Constant-Murley评分(CS)和活动范围。术后36个月进行主观肩峰值(SSV)和提离试验。术后肩胛骨下完整性进行超声评估。
    结果:术后12个月,代表队列在CS中表现出更好的结果(代表:71vs.nrep:66,p:0.037)。在rep-队列中归一化的CS为80%,在nrep-队列中为75%(p:0.114)。在36个月后的最后一次随访中,我们没有发现CS中代表队列和nrep队列之间的显着差异(代表:76vs.nrep:75,p:0.285)和归一化CS(rep:91%vs.nrep:91%,P:0.388)。关于内部旋转(以点为单位),代表队列比nrep队列取得了更好的结果(代表:7.3vs.nrep:6.6,p:0.040)。屈伸(代表:145°vs.nrep:151°,p:0.826),外展(代表:135°vs.nrep:137°p:0.816),外部旋转(代表:34°与nrep:37°,p:0.817)和SSV(代表:81%vs.nrep:77%,p:0.398)表示队列之间没有显着差异。36个月后的超声检查显示70%的肌腱完整。
    结论:虽然肩胛骨下再固定对术后内旋有积极影响,rTSA术后中期随访的总体结果无差异.Further,外旋转不受肩胛骨下肌腱固定的影响。
    BACKGROUND: Reverse shoulder arthroplasty is an established procedure for patients with rotator cuff tear arthropathy. However, the refixation of the subscapularis tendon remains a controversial and frequently discussed topic. This prospective randomized study was conducted to evaluate the clinical benefit of the subscapularis refixation after reverse shoulder arthroplasty.
    METHODS: Fifty patients (f: 36, m:14) were randomized and assigned to either the \"repaired\" (rep) or the \"not repaired\" (nrep) cohort. Intraoperatively, the subscapularis tendon was reattached in the rep-cohort with four tendon-to-tendon sutures, whereas no refixation was performed in the nrep-cohort. The Constant-Murley Score (CS) and the range of motion was evaluated preoperatively as well as 12 and 36 months postoperatively. The Subjective Shoulder Value (SSV) and the Lift-off test were performed 36 months postoperatively. The postoperative subscapularis integrity was assessed sonographically.
    RESULTS: Twelve months postoperatively the rep-cohort presented better results in the CS (rep: 71 vs. nrep: 66, p: 0.037). The normalized CS was 80% in the rep-cohort and 75% in the nrep-cohort (p: 0.114). At our last follow-up after 36 months we did not find significant differences between the rep-cohort and the nrep-cohort in the CS (rep: 76 vs. nrep: 75, p: 0.285) and normalized CS (rep: 91% vs. nrep: 91%, p: 0.388). Concerning internal rotation (in points) the rep-cohort achieved better results than the nrep-cohort (rep: 7.3 vs. nrep: 6.6, p: 0.040). Flexion (rep: 145° vs. nrep: 151°, p: 0.826), abduction (rep: 135° vs. nrep: 137° p: 0.816), external rotation (rep: 34° vs. nrep: 37°, p: 0.817) and the SSV (rep: 81% vs. nrep: 77%, p: 0.398) presented no significant differences between the cohorts. The ultrasound examination after 36 months displayed an intact tendon in 70%.
    CONCLUSIONS: While the subscapularis refixation effects the postoperative internal rotation positively, there were no differences in mid-term follow-up concerning the overall results after rTSA. Further, the external rotation is not affected by the refixation of the subscapularis tendon.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    人脸感知是一个复杂的过程,涉及高度专业化的程序和机制。对面部感知的研究可以帮助我们更好地理解大脑是如何处理细粒度的,多维信息。这项研究旨在深入研究面部信息的不同维度如何在特定的大脑区域或通过隐式面部识别任务通过区域间连接来表示。为了捕获大脑中各种面部信息的表示,我们采用支持向量机解码,功能连接,和基于模型的功能磁共振成像数据的代表性相似性分析,从而确定了三个重要的发现。首先,尽管任务的内隐性质,情绪仍然表现在大脑中,与所有其他面部信息形成对比。其次,发现内侧杏仁核和海马旁回之间的联系对于内隐任务中面部情绪的表现至关重要。第三,在隐式任务中,唤醒表现发生在海马旁回,而效价取决于初级视觉皮层和海马旁回之间的联系。总之,这些发现分离了情绪效价和唤醒的神经机制,揭示人脸多维信息处理的精确空间模式。
    Face perception is a complex process that involves highly specialized procedures and mechanisms. Investigating into face perception can help us better understand how the brain processes fine-grained, multidimensional information. This research aimed to delve deeply into how different dimensions of facial information are represented in specific brain regions or through inter-regional connections via an implicit face recognition task. To capture the representation of various facial information in the brain, we employed support vector machine decoding, functional connectivity, and model-based representational similarity analysis on fMRI data, resulting in the identification of three crucial findings. Firstly, despite the implicit nature of the task, emotions were still represented in the brain, contrasting with all other facial information. Secondly, the connection between the medial amygdala and the parahippocampal gyrus was found to be essential for the representation of facial emotion in implicit tasks. Thirdly, in implicit tasks, arousal representation occurred in the parahippocampal gyrus, while valence depended on the connection between the primary visual cortex and the parahippocampal gyrus. In conclusion, these findings dissociate the neural mechanisms of emotional valence and arousal, revealing the precise spatial patterns of multidimensional information processing in faces.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    背景:反向肩关节置换术(RSA)后肩胛骨下的作用仍然存在争议:修复可以恢复足够的内旋和肩关节稳定性,但可能会损害外部旋转。这项多中心研究的目的是,在使用三角学方法进行的大量RSAs中,是为了确定肩胛骨下术前状态和术中修复对活动范围的影响,至少随访2年的临床评分和并发症发生率。
    目的:功能性肩胛骨下的修复在不影响外旋的情况下给予更好的内旋和稳定性。
    方法:我们回顾性回顾了由14名外科医生进行的所有RSAs(n=916)的记录,排除了234个由前上方法操作的方法,42为类风湿性关节炎手术,骨折,不稳定或创伤后后遗症,和8个有辅助背阔肌肌腱转移(LDTT)。这留下了632个注册会计师,其中肩胛骨在594年脱离,在495年脱离后修复。患者完成术前和术后恒定评分和术后主观肩关节值(SSV)。活动前高程,主动外部旋转(ER),在术前和术后记录主动内旋(IR)。RSA后的并发症需要保守治疗,在不移除植入物的情况下再次手术,记录了再手术以及移除植入物的情况。
    结果:在最初的632个肩群中,120人(19%)失去随访,12人(2%)因与RSA无关的原因死亡,26例(4%)通过移除植入物进行了修订。剩下的474个肩膀,259例(55%)肩胛骨下功能修复(FR组),59例(12%)肩胛骨下无功能修复(nFR组),而68(14%)的肩胛骨下未修复(nR组)。患者人口统计学比较(年龄,体重指数和性别)显示三组之间没有显着差异。术后恒定评分(p=0.031)和SSV(p=0.016)三组间差异有统计学意义。但效应量小,与临床无关.三组之间术后ER和术后IR的差异不显着:FR组91(35%)获得了功能性IR,11(19%)在nFR组中,nR组中有13名(19%)。在FR组中,三肩(1.2%)报告主观不稳定,1肩(0.4%)脱臼,但nFR或nR组中都没有。
    结论:尽管三组之间的ConstantScore和SSV有统计学上的显著差异,这些差异的临床相关性可以忽略不计,因此,功能性肩胛骨下修复对功能结局影响很小或没有影响。在RSA期间,通过deltopecorial方法,功能性肩胛骨下修复可以稍微改善一些患者的内旋,但不会损害外旋,正向抬高或临床评分,在修复无功能的肩胛骨下,与非修复相比,没有改善运动范围或临床评分。
    方法:III;回顾性比较。
    The role of the subscapularis following reverse shoulder arthroplasty (RSA) remains controversial as repair could restore adequate internal rotation and shoulder stability, but might compromise external rotation. The purpose of this multi-centre study, on a large cohort of RSAs performed using the deltopectoral approach, was to determine the effect of subscapularis preoperative status and intraoperative repair on range of motion, clinical scores and rates of complications at a minimum follow-up of 2 years.
    Repair of a functional subscapularis grants better internal rotation and stability without compromising external rotation.
    We retrospectively reviewed records of all RSAs (n=916) performed by 14 surgeons that participated in a large national society symposium, and excluded 234 operated by the anterosuperior approach, 42 operated for rheumatoid arthritis, fractures, instability or post traumatic sequalae, and eight that had adjuvant latissimus dorsi tendon transfer (LDTT). This left 632 RSAs, in which the subscapularis was detached in 594, and repaired after detachment in 495. Patients completed pre- and postoperative Constant Score and postoperative Subjective Shoulder Value (SSV). Active forward elevation, active external rotation (ER), and active internal rotation (IR) were recorded pre- and postoperatively. Complications following RSA that required conservative treatment, reoperation without implant removal, as well as reoperation with implant removal were recorded.
    Of the initial cohort of 632 shoulders, 120 (19%) were lost to follow-up, 12 (2%) died due to causes unrelated to RSA, and 26 (4%) were revised with implant removal. Of the remaining 474 shoulders, 259 (55%) had a functional repaired subscapularis (Group FR), 59 (12%) had a non-functional repaired subscapularis (Group nFR), whereas 68 (14%) had a not repaired subscapularis (Group nR). Comparison of patient demographics revealed no significant differences among the three groups. Postoperative Constant Score (p=0.031) and SSV (p=0.016) were significantly different among the three groups, but effect sizes were small and not clinically relevant. Differences in postoperative ER as well as postoperative IR were not significant among the three groups: 91 (35%) gained functional IR in Group FR, 11 (19%) in Group nFR, and 13 (19%) in Group nR. Three shoulders (1.2%) reported subjective instability and 1 (0.4%) dislocated in Group FR, but none in either Groups nFR or nR.
    Despite statistically significant differences in Constant Score and SSV among the three groups, the clinical relevance of these differences is negligible, so repair of functional subscapularis has little or no influence on functional outcomes. During RSA by deltopectoral approach, repair of a functional subscapularis could slightly improve internal rotation in some patients but does not compromise external rotation, forward elevation or clinical scores, while repair of a non-functional subscapularis, compared to non-repair, did not improve range of motion or clinical scores.
    III; retrospective comparative.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

公众号