Experimental

实验性
  • 文章类型: Journal Article
    地下管道是天然气输送的关键基础设施,为了安全而战略埋葬,环境,和经济考虑。尽管它们很重要,运营挑战和外部干扰可能导致地下气体泄漏,对人类安全和环境造成潜在的灾难性后果。保护性土壤床的存在在理解地下传输现象和准确量化气体释放方面引入了复杂性。在这里,这篇综述对已发表的地下气体释放领域的研究进行了系统分析,强调连接岩石圈和大气的跨学科方法。分析突出了广泛的采用方法,包括基于基本原理的理论模型,从实验数据得出的经验公式,和复杂的计算工具。明确的基本理解和计算分析,在较小程度上是实验性的,已经建立来描述移民制度。相比之下,更多的实证研究涉及火山口的形成机制,尽管重点是土壤抛射后的远场建模,而不是导致火山口形成的瞬态现象。此外,这篇评论涉及实践和概念主题,如检测和定位技术,以及其他气体流经土壤和粉末床的流态,质疑一些假定的颗粒概念对迁移以外的流动行为的适用性。研究领域主要集中在仅从大气或土壤领域的角度研究释放参数对释放现象的影响。这项工作提供了见解,旨在首先超越两个领域,然后桥接三个不同的流动机制-迁移,隆起,和火山口的形成——尽管人们有限地认识到通过普遍方法同时解决所有制度的必要性。这篇评论为工程师开发创新解决方案以管理与地下气体泄漏相关的风险提供了宝贵的资源。
    Underground pipelines serve as critical infrastructure for gas transmission, strategically buried for safety, environmental, and economic considerations. Despite their importance, operational challenges and external interferences can lead to underground gas leaks with potentially catastrophic consequences for both human safety and the environment. The presence of a protective soil bed introduces complexities in understanding subsurface transport phenomena and quantifying gas releases accurately. Herein, this review presents a systematic analysis of published research in the field of underground gas releases, with an emphasis on interdisciplinary approaches that connect the lithosphere and atmosphere. The analysis highlights the broad spectrum of employed methods, including theoretical models based on fundamental principles, empirical formulations derived from experimental data, and sophisticated computational tools. A clear fundamental understanding and computational analysis, and to a lesser extent experimental, have been established to describe the migration regime. In contrast, more empirical research has addressed the crater formation regime, though focus was given to the far-field modelling following the soil ejection rather than the transient phenomena leading to the formation of the crater. Additionally, this review touches upon practical and conceptual topics, such as detection and localization techniques, and flow regimes in other gaseous flows through soil and powder beds, putting into question the applicability of some presumed granulated concepts to the flowing behavior expected beyond migration. The research landscape predominantly focuses on investigating the influence of release parameters on the release phenomena only from the atmospheric or soil domain perspective. This work provides insights that aim to first transcend both domains and then bridge the three distinct flow regimes-migration, uplift, and crater formation-despite the limited acknowledgment of the necessity of addressing all regimes concurrently through a universal approach. This review serves as a valuable resource for engineers to develop innovative solutions for the management of risks associated with underground gas leaks.
    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: Systematic Review
    去个性化-去现实障碍(DDD)的特征是与自己和/或周围环境分离的痛苦经历,可能是由于情感的改变,认知,和生理功能。本系统综述旨在综合当前与DDD潜在机制相关的实验证据,为了评估现有的理论模型,并为未来的研究和理论发展提供信息。如果他们在DDD样本中测试了明确的假设,通过对至少一个自变量的实验操作,除了行为,主观,神经学,情感和/或生理因变量。一些证据表明,对厌恶的图像和声音的主观反应减弱,当观看厌恶的图像时,神经回路中与情绪调节相关的过度激活出现了,证实DDD的神经生物学模型。关于面部表情的行为和自主神经反应存在不一致,情感记忆,和自我参照处理。常见的困惑包括小样本量,药物,和合并症。DDD中似乎存在情感反应和调节的变化;然而,需要采用更严格的研究设计的进一步研究,为这些可能的机制提供更有力的证据。
    Depersonalisation-derealisation disorder (DDD) is characterised by distressing experiences of separation from oneself and/or one\'s surroundings, potentially resulting from alterations in affective, cognitive, and physiological functions. This systematic review aimed to synthesise current experimental evidence of relevance to proposed mechanisms underlying DDD, to appraise existing theoretical models, and to inform future research and theoretical developments. Studies were included if they tested explicit hypotheses in DDD samples, with experimental manipulations of at least one independent variable, alongside behavioural, subjective, neurological, affective and/or physiological dependent variables. Some evidence for diminished subjective responsivity to aversive images and sounds, and hyperactivation in neurocircuits associated with emotional regulation when viewing aversive images emerged, corroborating neurobiological models of DDD. Inconsistencies were present regarding behavioural and autonomic responsivity to facial expressions, emotional memory, and self-referential processing. Common confounds included small sample sizes, medication, and comorbidities. Alterations in affective reactivity and regulation appear to be present in DDD; however, further research employing more rigorous research designs is required to provide stronger evidence for these possible mechanisms.
    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
    关于快速眼动睡眠(REMS)在处理情绪中的重要性的证据正在积累。本系统综述的重点是实验性REMS剥夺(REMSD)的结果,这是REMSD动物模型和人体研究中最常见的方法。这篇综述显示,应用的REMSD方法存在很大差异。与人类研究相比,动物模型使用了更长的剥夺方案,主要报道了一夜后的急性剥夺效应。对动物模型的研究表明,REMSD引起攻击行为,增加疼痛敏感性,减少性行为,以及恐惧记忆的整合。动物模型还显示,在关键发育时期的REMSD会对情感相关行为产生持久的影响。少数人类研究显示疼痛敏感性增加,并表明REMSD后情感记忆的巩固更强。由于药物干预(如选择性5-羟色胺再摄取抑制剂[SSRIs])可能会长期抑制REMS,关于人类慢性REMS抑制的影响和机制的知识存在明显差距。
    Evidence on the importance of rapid-eye-movement sleep (REMS) in processing emotions is accumulating. The focus of this systematic review is the outcomes of experimental REMS deprivation (REMSD), which is the most common method in animal models and human studies on REMSD. This review revealed that variations in the applied REMSD methods were substantial. Animal models used longer deprivation protocols compared with studies in humans, which mostly reported acute deprivation effects after one night. Studies on animal models showed that REMSD causes aggressive behavior, increased pain sensitivity, reduced sexual behavior, and compromised consolidation of fear memories. Animal models also revealed that REMSD during critical developmental periods elicits lasting consequences on affective-related behavior. The few human studies revealed increases in pain sensitivity and suggest stronger consolidation of emotional memories after REMSD. As pharmacological interventions (such as selective serotonin reuptake inhibitors [SSRIs]) may suppress REMS for long periods, there is a clear gap in knowledge regarding the effects and mechanisms of chronic REMS suppression in humans.
    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
    在它被发现的100年里,溶菌酶已经成为一种重要的分子,既可以作为不同领域研究的模型,也可以作为治疗各种病理状况的候选人。在已知的数十种溶菌酶中,在这篇综述中,我们特别关注一个,从鸡蛋清(HEWL)中提取的溶菌酶,以及口服时与免疫系统的相互作用。实验数据显示,存在从GALT(肠相关淋巴组织)和肠淋巴细胞簇引导免疫系统激活的轴。尽管不能排除来自肠腔中细菌细胞壁消化的肽聚糖的贡献,免疫刺激不依赖于HEWL的酶活性。免疫反应表明HEWL能够从肿瘤生长或免疫抑制剂引起的免疫抑制中恢复,它也提高了化疗的成功率。在一项针对患者的小型2期研究中获得的阳性结果,这种蛋白质易于口服,并且没有不良反应表明HEWL可能在所有免疫系统减弱或其增强在病理解决中起关键作用的疾病中发挥重要作用。
    In the 100 years since its discovery, lysozyme has become an important molecule, both as model for studies in different fields and as a candidate for the therapy of various pathological conditions. Of the dozens of known lysozymes, in this review we focus on one in particular, lysozyme extracted from hen egg white (HEWL), and its interaction with the immune system when it is administered orally. Experimental data show that there is an axis that directs immune system activation from GALT (gut-associated lymphoid tissue) and the intestinal lymphocyte clusters. Although a contribution of peptidoglycans from digestion of the bacterial cell wall in the intestinal lumen cannot be excluded, immune stimulation is not dependent on the enzymatic activity of HEWL. The immune responses suggest that HEWL is able to recover from immunodepression caused by tumor growth or immunosuppressants, and that it also improves the success of chemotherapy. The positive results obtained in a small Phase 2 study in patients, the ease of oral administration of this protein, and the absence of adverse effects suggest that HEWL may play an important role in all diseases where the immune system is weakened or where its enhancement plays a critical role in the resolution of the pathology.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Systematic Review
    背景:运动是身体活动的一个子集,对短期和长期的身心健康特别有益,和成年人的社会成果。这项研究提供了对成人社区和精英级运动参与的心理健康和社会成果进行最新系统评价的结果。这些发现为成年人的“通过运动实现心理健康”概念模型的发展提供了信息。
    方法:搜索了9个电子数据库,2012年至2020年3月发表的研究筛选纳入。合格的定性和定量研究报告了成年人群体育参与与心理健康和/或社会结果之间的关系。使用质量评估工具(定量研究)或关键评估技能计划(定性研究)确定偏倚风险(ROB)。
    结果:搜索策略位于8528篇文章,其中,纳入29名18-84岁的成年人进行分析。数据被提取用于人口统计学,方法论,和研究结果,并根据研究设计提出结果。证据表明,参与体育运动(社区和精英)与更好的心理健康有关,包括改善的心理健康(例如,较高的自尊和生活满意度)和较低的心理疾病(例如,抑郁程度降低,焦虑,和压力),和改善的社会成果(例如,改善自我控制,亲社会行为,人际交往,培养归属感)。总的来说,参加团队运动的成年人比参加个人运动的成年人有更有利的健康结果,那些参加体育运动的人通常会报告最大的好处;然而,一些证据表明,参加精英运动的成年人可能会经历更高水平的心理困扰。定性研究观察到低ROB,但定量研究表明方法质量不一致。
    结论:本综述的结果证实,参加任何形式的运动(团队或个人)都有利于改善成年人的心理健康和社会结果。团队运动,然而,可以为整个成年期的心理和社会结果提供更有效和额外的好处。这篇综述也为通过运动模式建立心理健康提供了初步证据,尽管需要进一步的实验和纵向证据来确定运动对心理健康的影响机制和干预效果的调节因素。还需要进行其他定性工作,以更好地了解运动环境的特定要素与成年参与者的心理健康和社会成果之间的关系。
    Sport is a subset of physical activity that can be particularly beneficial for short-and-long-term physical and mental health, and social outcomes in adults. This study presents the results of an updated systematic review of the mental health and social outcomes of community and elite-level sport participation for adults. The findings have informed the development of the \'Mental Health through Sport\' conceptual model for adults.
    Nine electronic databases were searched, with studies published between 2012 and March 2020 screened for inclusion. Eligible qualitative and quantitative studies reported on the relationship between sport participation and mental health and/or social outcomes in adult populations. Risk of bias (ROB) was determined using the Quality Assessment Tool (quantitative studies) or Critical Appraisal Skills Programme (qualitative studies).
    The search strategy located 8528 articles, of which, 29 involving adults 18-84 years were included for analysis. Data was extracted for demographics, methodology, and study outcomes, and results presented according to study design. The evidence indicates that participation in sport (community and elite) is related to better mental health, including improved psychological well-being (for example, higher self-esteem and life satisfaction) and lower psychological ill-being (for example, reduced levels of depression, anxiety, and stress), and improved social outcomes (for example, improved self-control, pro-social behavior, interpersonal communication, and fostering a sense of belonging). Overall, adults participating in team sport had more favorable health outcomes than those participating in individual sport, and those participating in sports more often generally report the greatest benefits; however, some evidence suggests that adults in elite sport may experience higher levels of psychological distress. Low ROB was observed for qualitative studies, but quantitative studies demonstrated inconsistencies in methodological quality.
    The findings of this review confirm that participation in sport of any form (team or individual) is beneficial for improving mental health and social outcomes amongst adults. Team sports, however, may provide more potent and additional benefits for mental and social outcomes across adulthood. This review also provides preliminary evidence for the Mental Health through Sport model, though further experimental and longitudinal evidence is needed to establish the mechanisms responsible for sports effect on mental health and moderators of intervention effects. Additional qualitative work is also required to gain a better understanding of the relationship between specific elements of the sporting environment and mental health and social outcomes in adult participants.
    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
    UNASSIGNED:性和婚姻满意度在夫妻关系的稳定中起着重要作用,因此,有必要采取适当的方法来推广它们。这项研究旨在识别和分类影响伊朗妇女性满意度和婚姻满意度的心理干预措施。
    UNASSIGNED:使用SID的波斯语和英语数据库进行了电子系统综述搜索,Embase,PubMed,Scopus,WebofScience,Medline,Cochran图书馆,和谷歌学者电机引擎,直到2021年,以确定所有相关的临床试验以及评估心理干预对性和婚姻满意度影响的实验和准实验研究。
    未经批准:完全,我们从前面提到的数据库中检索了528项研究,其中,38符合资格标准。对4项研究进行的亚组荟萃分析表明,基于个人咨询的干预措施可以提高性满意度(MD:2.94,95%CI:-0.36至6.24,P=0.23),(I2=30.83%)。对10项研究进行的亚组荟萃分析显示,以夫妻为基础的咨询可提高婚姻满意度(MD:5.93,95%CI:-2.59至9.27,P=.95),(I2=0%)。
    UNASSIGNED:荟萃分析的结果表明,基于咨询的心理干预措施对提高夫妻的性和婚姻满意度的影响。然而,在得出明确结论之前,还需要进一步的临床试验。
    UNASSIGNED: Sexual and marital satisfaction play an important role in the stability of couples\' relationships, so it is necessary to take a proper approach to promote them. This study aimed to identify and categorize psychological interventions affecting sexual satisfaction and marital satisfaction of women in Iran.
    UNASSIGNED: An electronic systematic review search was conducted using the Persian and English databases of SID, Embase, PubMed, Scopus, Web of Science, Medline, Cochran library, and Google Scholar motor engine until 2021 to identify all relevant clinical trials and experimental and quasi-experimental studies assessing the effect of psychological interventions on sexual and marital satisfaction.
    UNASSIGNED: Totally, we retrieved 528 studies from the previously mentioned databases, of which, 38 met the eligibility criteria. The subgroup meta-analysis of 4 studies conducted showed that interventions based on individual consultations increase sexual satisfaction (MD: 2.94, 95% CI: -0.36 to 6.24, P= .23), (I 2 =30.83%). The subgroup meta-analysis of 10 studies conducted revealed that couple-based consultations increase marital satisfaction (MD: 5.93, 95% CI: -2.59 to 9.27, P=.95), (I 2 = 0%).
    UNASSIGNED: The results of meta-analysis demonstrated the effect of counseling-based psychological interventions on increasing sexual and marital satisfaction of couples. However, further clinical trials are required before making a definitive conclusion.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Systematic Review
    未经评估:元认知是一个术语,用于指代对认知过程的认知。在这篇系统综述和荟萃分析中,我们回顾了通过实验测量的客观元认知敏感性与精神障碍不同症状之间关系的研究。在这些研究中,元认知敏感度被操作为任务执行的准确性与报告的置信度之间的对应关系。
    UNASSIGNED:在四个数据库中进行文献检索,并根据预定的资格标准选择研究进行审查。该综述包括20项研究,并对精神病和非精神病类的精神症状进行了单独的荟萃分析。
    UNASSIGNED:与健康对照组相比,患有精神病相关症状的个体的元认知敏感性显着降低(中等效应大小),但是对于非精神病性症状的个体没有发现显着差异。但应该指出的是,后者的研究较少。亚组分析发现,没有证据表明元认知障碍的影响取决于是否采用了感知或非感知的实验任务。
    UNASSIGNED:这些发现与元认知的其他概念化以及元认知敏感性降低可能在精神障碍形式中的作用进行了讨论。
    UNASSIGNED: Metacognition is a term used to refer to cognition about cognitive processes. In this systematic review and meta-analysis, we reviewed studies that investigated the relationship between experimentally measured objective metacognitive sensitivity and diverse symptoms of mental disorder. In these studies, metacognitive sensitivity is operationalized as the correspondence between the accuracy of task performance and reported confidence therein.
    UNASSIGNED: A literature search was conducted across four databases and studies were selected for review based on predefined eligibility criteria. Twenty studies were included in the review and separate meta-analyses were conducted for psychotic and non-psychotic categories of psychiatric symptoms.
    UNASSIGNED: A significant reduction (medium effect size) in metacognitive sensitivity was found in individuals with psychosis-related symptoms of mental disorder compared to healthy control groups, but no significant difference was found for individuals with non-psychotic symptoms. It should be noted though, that fewer studies were available for the latter group. Sub-group analysis found no evidence that the effect of metacognitive impairment depended on whether perceptual or non-perceptual experimental tasks were employed.
    UNASSIGNED: These findings are discussed in relation to other conceptualizations of metacognition and the role reduced metacognitive sensitivity may play in forms of mental disorder.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Systematic Review
    背景:炎症是慢性疾病病理生理学中的一把双刃剑,如2型糖尿病(T2DM)。全球T2DM患病率上升一方面,另一方面,目前可用的治疗方法对疾病控制不佳,随着使用天然产物的趋势增加,科学家们寻求通过减少C反应蛋白(CRP)作为炎症标志物来治疗糖尿病及其并发症的草药。
    目的:在T2DM动物模型中,系统回顾各种具有抗氧化和抗炎特性的药用植物的功效,并考虑其对CRP的影响。
    方法:系统评价。
    方法:电子数据库,包括PubMed,Scopus,使用搜索词“草药”搜索了WebofScience和Cochran图书馆,\"糖尿病\",“C反应蛋白”,“抗氧化剂”到2021年8月。使用实验动物实验系统审查中心(SYRCLE)工具评估证据质量。研究方案在PROSPERO中注册,ID号为CRD42020207190。还进行了手动搜索以检测数据库中未找到的任何文章。然后对确定的研究进行严格审查,并提取和总结相关数据。
    结果:在9904篇主要检索文章中,最终包括23项实验研究。我们的数据表明,许多草药,与安慰剂或降血糖药物相比,通过降低CRP浓度和氧化应激水平有效治疗糖尿病及其并发症。药用植物,包括番石榴,石榴,银杏L.,石榴,石竹superbusnL..此外,凤眼莲(玛特。)Solms,姜黄,AzadirachtaindicaA.Juss.,桑属植物,在糖尿病动物模型中显示出潜在的神经保护作用。
    结论:这篇综述中讨论的降血糖药用植物似乎是有希望的CRP调节剂,和氧化应激。因此,这些植物是治疗糖尿病并发症的合适人选。然而,需要进一步的高质量体内研究和临床试验来证实这些效果。
    BACKGROUND: Inflammation is a double-edged sword in the pathophysiology of chronic diseases, such as type 2 diabetes mellitus (T2DM). The global rise in the prevalence of T2DM in one hand, and poor disease control with currently-available treatments on the other hand, along with an increased tendency towards the use of natural products make scientists seek herbal medicines for the management of diabetes and its complications by reducing C-reactive protein (CRP) as an inflammatory marker.
    OBJECTIVE: To systematically review the literature to identify the efficacy of various medicinal plants with antioxidative and anti-inflammatory properties considering their effect on CRP in animal models of T2DM.
    METHODS: systematic review.
    METHODS: Electronic databases including PubMed, Scopus, Web of Science and Cochran Library were searched using the search terms \"herbal medicine\", \"diabetes\", \"c-reactive protein\", \"antioxidants\" till August 2021. The quality of evidence was assessed using the Systematic Review Centre for Laboratory animal Experimentation (SYRCLE\'s) tool. The study protocol was registered in PROSPERO with an ID number CRD42020207190. A manual search to detect any articles not found in the databases was also made. The identified studies were then critically reviewed and relevant data were extracted and summarized.
    RESULTS: Among total of 9904 primarily-retrieved articles, twenty-three experimental studies were finally included. Our data indicated that numerous herbal medicines, compared to placebo or hypoglycemic medications, are effective in treatment of diabetes and its complications through decreasing CRP concentrations and oxidative stresses levels. Medicinal plants including Psidium guajava L., Punica granatum L., Ginkgo biloba L., Punica granatum L., Dianthus superbusn L.. Moreover, Eichhornia crassipes (Mart.) Solms, Curcuma longa L., Azadirachta indica A. Juss., Morus alba L., and Ficus racemosa L. demonstrated potential neuroprotective effects in animal models of diabetes.
    CONCLUSIONS: Hypoglycemic medicinal plants discussed in this review seem to be promising regulators of CRP, and oxidative stress. Thus, these plants are suitable candidates for management of diabetes\' complications. Nevertheless, further high-quality in vivo studies and clinical trials are required to confirm these effects.
    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
    最近的生物力学研究集中在研究不同治疗前后牙齿在功能和功能负荷下的反应。这些研究通常涉及实验和/或有限元分析(FEA)。当前负载和边界条件可能不完全代表临床情况下牙齿的真实状况。强调了均匀化样品表征和边界条件定义对于未来牙科生物力学研究的重要性。介绍了牙体结构组织的力学性能,以及可能影响牙齿存活的功能和副功能负荷以及其他环境和生物学参数的影响。杨氏模量的一系列值,泊松比,抗压强度,提供了牙釉质和牙本质的阈值应力强度因子和断裂韧性;以及PDL的杨氏模量和泊松比,骨小梁和皮质骨。角,为功能载荷和超功能载荷提供载荷幅度和频率。环境和生理条件(年龄,性别,牙齿,湿度,湿度等。),还讨论了可能影响牙齿存活的因素。生物力学模型的过度简化可能会导致结果偏离牙齿的自然行为。应开发具有接近现实边界条件的实验验证模型,以比较简化模型的有效性。
    Recent biomechanical studies have focused on studying the response of teeth before and after different treatments under functional and parafunctional loads. These studies often involve experimental and/or finite element analysis (FEA). Current loading and boundary conditions may not entirely represent the real condition of the tooth in clinical situations. The importance of homogenizing both sample characterization and boundary conditions definition for future dental biomechanical studies is highlighted. The mechanical properties of dental structural tissues are presented, along with the effect of functional and parafunctional loads and other environmental and biological parameters that may influence tooth survival. A range of values for Young\'s modulus, Poisson ratio, compressive strength, threshold stress intensity factor and fracture toughness are provided for enamel and dentin; as well as Young\'s modulus and Poisson ratio for the PDL, trabecular and cortical bone. Angles, loading magnitude and frequency are provided for functional and parafunctional loads. The environmental and physiological conditions (age, gender, tooth, humidity, etc.), that may influence tooth survival are also discussed. Oversimplifications of biomechanical models could end up in results that divert from the natural behavior of teeth. Experimental validation models with close-to-reality boundary conditions should be developed to compare the validity of simplified models.
    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: Meta-Analysis
    基于巨噬细胞M2(MP2)的细胞疗法是一种用于患有实验性自身免疫性脑脊髓炎(EAE)的动物的新型药物治疗,作为多发性硬化症(MS)的实验模型。这项系统综述和荟萃分析研究旨在评估MP2细胞疗法对EAE诱导的动物的临床评分和运动障碍的总体治疗效果。在EAE动物中进行MP2细胞治疗的所有实验均来自英语(PubMed,2022年10月2日)。Scopus,WOS,科学直接,和ISC)和波斯语(MagIran和SID)数据库。搜索策略设计使用“实验性自身免疫性脑脊髓炎,\"\"多发性硬化症,\"和\"巨噬细胞M2\"关键字。在初级和次级筛查之后,符合条件的论文是根据PRISMA2020指南选择的,使用动物研究:体内实验报告(ARRIVE)清单评估研究质量。基于随机效应模型(CMA软件,V.2).分组(EAE发作阶段,峰,和恢复)被应用,采用I2指数对异质性指数进行评估。还评估了发表偏倚和敏感性指数。P<0.05被认为是显著的,置信区间(CI)为95%。在22份收集的文件中,选择中质量到高质量的研究进行荟萃分析.手段上的差异,P值,和I2为开始,峰,和恢复阶段为0.082(CI95%:-0.323-0.159,P值:0.504,I2:67.961%),-0.606(CI95%:-1.518至-0.305,P值:0.192,I2:96.070%),和-1.103(CI95%:-1.390至-0.816,P值:0.000,I2:30.880%),分别和总体效果为-0.509(CI95%:-0.689至-0.328,P值<0.001)。此外,发表偏倚的P值(双尾)指数分别为0.366和0.583,分别为Egger回归截距和Begg秩相关,分别。灵敏度的P值检测为0.003。使用MP2的细胞治疗程序可以潜在地减轻临床评分指数并纠正EAE动物恢复期的运动缺陷。在健康的老鼠中,大脑和髓鞘周围的神经元处于健康和生理状态(1)。为了评估人类的MS,有必要通过皮下注射CFA使用EAE程序在动物中模拟这种类型的疾病,MOG35-55,MT,还有Pert.因此,炎症和自身免疫发生,最终导致髓鞘破坏和运动症状(2)。通过抽吸骨髓中可用的祖细胞,MP2可以被分离和培养。通过激活这些类型的细胞,可以为细胞治疗过程准备丰富的MP2集合(3)。通过尾静脉注射或腹膜内注射后,这些细胞可以通过从BBB穿过而位于CNS中。它们开始抗炎活动并帮助修复受损的髓磷脂(4)。最终,临床症状可以得到很大改善,动物运动功能改善(5)。CFA,完全弗氏佐剂;MOG35-55,髓鞘少突胶质细胞糖蛋白;MT,结核分枝杆菌;Pert,百日咳;EAE,实验性自身免疫性脑脊髓炎;BM,骨髓;MP2,巨噬细胞M2;和BBB,血脑屏障.
    Macrophage M2 (MP2)-based cell therapy is a novel medicinal treatment for animals with Experimental Autoimmune Encephalomyelitis (EAE) as an experimental model of multiple sclerosis (MS). This systematic review and meta-analysis study was designed to assess the overall therapeutic effects of MP2 cell therapy on Clinical Score and motor impairment in EAE-induced animals. All experiments on MP2 cell therapy in animals with EAE were gathered (by October 2, 2022) from English (PubMed, Scopus, WoS, Science Direct, and ISC) and Persian (MagIran and SID) databases. The searching strategy was designed using \"Experimental Autoimmune Encephalomyelitis,\" \"Multiple Sclerosis,\" and \"Macrophage M2\" keywords. Following primary and secondary screenings, eligible papers were selected based on the PRISMA 2020 guideline, and the study quality was assessed using the Animal Research: Reporting of In Vivo Experiments (ARRIVE) checklist. The difference in means of Clinical Score (score 0-5) as the effect size (ES) was analyzed based on the random effect model (CMA software, v.2). Subgrouping (EAE phases of Onset, Peak, and Recovery) was applied, and I2 index was used to assess the heterogeneity index. Publication bias and sensitivity indices were also evaluated. P < 0.05 was considered significant, and the confidence interval (CI) was determined 95%. Among 22 gathered papers, medium to high quality studies were selected for meta-analysis. Difference in means, P value, and I2 for Onset, Peak, and Recovery phases were 0.082 (CI95%: -0.323-0.159, P value: 0.504, I2 : 67.961%), -0.606 (CI95%: -1.518 to -0.305, P value: 0.192, I2 : 96.070%), and -1.103 (CI95%: -1.390 to -0.816, P value: 0.000, I2 : 30.880%), respectively and Overall Effect was found -0.509 (CI95%: -0.689 to -0.328, P value < 0.001). Also, P value (two-tailed) indices for publication bias were 0.366 and 0.583 for Egger\'s regression intercept and Begg rank correlation, respectively. The P value for sensitivity was detected 0.003. Cell therapy procedure using MP2 can potentially alleviate the Clinical Scores Index and correct the motor defects in Recovery phase of EAE animals. In healthy mice, the brain and myelin surrounding neurons are in a healthy and physiological state (1). To evaluate MS in humans, it is necessary to model this type of disease in animals using EAE procedure through subcutaneous injection of CFA, MOG35-55 , MT, and Pert. Thus, inflammation and autoimmunity occur, which finally lead to myelin destruction and motor symptoms (2). By aspiration of progenitor cells available in bone marrow, the MP2 can be isolated and cultured. By activation of these types of cells, a rich collection of MP2 can be prepared for the cell-therapy process (3). After injection through the tail vein or intra-peritoneal procedure, these cells can be located in CNS through crossing from the BBB. They begin their anti-inflammatory activities and help repair the damaged myelin (4). Eventually, the clinical symptoms can be modified considerably, and the animal motor function improves (5). CFA, complete Freund\'s adjuvant; MOG35-55 , myelin oligodendrocyte glycoprotein; MT, Mycobacterium tuberculosis; Pert, pertussis; EAE, Experimental Autoimmune Encephalomyelitis; BM, bone marrow; MP2, macrophage M2; and BBB, blood brain barrier.
    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