routes

路线
  • 文章类型: Journal Article
    动物如何在其一生中改善迁徙行为(即,移民的个体发育)是一个持久的问题,对预测移民在不断变化的世界中的适应能力具有重要意义。然而,我们无法监测个体从早期开始的运动,这限制了我们对移民个体发育的理解。探索-完善假说认为,学习塑造了长寿物种迁徙的个体发育,在生命早期产生更大的探索行为,然后在以后的生活中产生更快速和直接的运动。我们通过考察白鹭(Ciconiaciconia)如何平衡能量来检验探索-细化假设,时间,以及他们在生命最初几年发展和完善迁徙行为的信息。这里,我们表明,幼鸟在飞行过程中减少了能量消耗,同时也通过在迁徙过程中探索新的地方来增加信息增益。随着鸟类的年龄增长和获得更多的经验,老年人停止探索新的地方,而是更快更直接地行动,导致迁徙飞行过程中更大的能量消耗。在春季迁徙期间,个人在从早年到成年的过渡中创新了新颖的捷径,表明对通过学习获得的空间记忆的依赖。迁移行为的这些逐步改进为一生中个人学习在远距离迁移的个体发育中的重要性提供了支持。
    How animals refine migratory behavior over their lifetime (i.e., the ontogeny of migration) is an enduring question with important implications for predicting the adaptive capacity of migrants in a changing world. Yet, our inability to monitor the movements of individuals from early life onward has limited our understanding of the ontogeny of migration. The exploration-refinement hypothesis posits that learning shapes the ontogeny of migration in long-lived species, resulting in greater exploratory behavior early in life followed by more rapid and direct movement during later life. We test the exploration-refinement hypothesis by examining how white storks (Ciconia ciconia) balance energy, time, and information as they develop and refine migratory behavior during the first years of life. Here, we show that young birds reduce energy expenditure during flight while also increasing information gain by exploring new places during migration. As the birds age and gain more experience, older individuals stop exploring new places and instead move more quickly and directly, resulting in greater energy expenditure during migratory flight. During spring migration, individuals innovated novel shortcuts during the transition from early life into adulthood, suggesting a reliance on spatial memory acquired through learning. These incremental refinements in migratory behavior provide support for the importance of individual learning within a lifetime in the ontogeny of long-distance migration.
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  • 文章类型: Journal Article
    最近的研究表明,肠道微生物组在人类生理学和病理学中的重要作用。此外,基于微生物组方法的治疗干预已被用于增强整体健康和解决各种疾病,包括衰老和神经退行性疾病(ND)。研究人员探索了这些领域之间的潜在联系,研究肠道微生物群在疾病中的潜在致病或治疗作用。本文概述了肠道微生物组和ND之间已建立的相互作用。后生物被认为通过提高黑质中多巴胺的水平和降低黑质中α-突触核蛋白的水平来介导其神经保护作用,保护多巴胺能神经元的丢失,减少NFT的聚合,减少淀粉样β肽斑块的沉积并改善运动缺陷。此外,通过抑制炎症反应(降低TNFα的表达,iNOS表达,自由基的形成,HIF-1α过表达),凋亡(即活性caspase-3,TNF-α,维持Bax/Bcl-2比率的水平)并促进BDNF分泌。它也被报道具有良好的抗氧化活性。这篇综述概述了临床前和临床试验中有关在ND中使用后抗生素的最新发现。
    Recent studies have indicated the significant involvement of the gut microbiome in both human physiology and pathology. Additionally, therapeutic interventions based on microbiome approaches have been employed to enhance overall health and address various diseases including aging and neurodegenerative disease (ND). Researchers have explored potential links between these areas, investigating the potential pathogenic or therapeutic effects of intestinal microbiota in diseases. This article provides a summary of established interactions between the gut microbiome and ND. Post-biotic is believed to mediate its neuroprotection by elevating the level of dopamine and reducing the level of α-synuclein in substantia nigra, protecting the loss of dopaminergic neurons, reducing the aggregation of NFT, reducing the deposition of amyloid β peptide plagues and ameliorating motor deficits. Moreover, mediates its neuroprotective activity by inhibiting the inflammatory response (decreasing the expression of TNFα, iNOS expression, free radical formation, overexpression of HIF-1α), apoptosis (i.e. active caspase-3, TNF-α, maintains the level of Bax/Bcl-2 ratio) and promoting BDNF secretion. It is also reported to have good antioxidant activity. This review offers an overview of the latest findings from both preclinical and clinical trials concerning the use of post-biotics in ND.
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  • 文章类型: Journal Article
    1.意外的代谢可能导致许多晚期候选药物的失败,甚至撤回批准的药物。因此,在研究的早期阶段,预测和研究主要的代谢途径至关重要。在这项研究中,我们描述了“WhichEnzyme”模型的开发和验证,该模型可以准确预测最有可能负责药物样分子代谢的酶家族。此外,我们将这个模型与我们以前发表的细胞色素P450,醛氧化酶,含黄素的单加氧酶,UDP-葡糖醛酸基转移酶和磺基转移酶-最重要的I期和II期药物代谢酶-和预测负责化合物代谢的细胞色素P450同工型的“WhichP450”模型。区域选择性模型基于对这些酶作用的机械理解,并使用机器学习方法的量子力学模拟来准确预测代谢位点和产生的代谢物。我们根据“WhichEnzyme”的输出训练启发式,\'WhichP450\',和区域选择性模型,以确定最可能的代谢途径和代谢物进行实验观察。最后,我们证明,这种组合在鉴定实验报告的代谢物方面具有很高的灵敏度,并且比其他预测体内代谢物谱的方法具有更高的精度。
    Unexpected metabolism could lead to the failure of many late-stage drug candidates or even the withdrawal of approved drugs. Thus, it is critical to predict and study the dominant routes of metabolism in the early stages of research.We describe the development and validation of a \'WhichEnzyme\' model that accurately predicts the enzyme families most likely to be responsible for a drug-like molecule\'s metabolism. Furthermore, we combine this model with our previously published regioselectivity models for Cytochromes P450, Aldehyde Oxidases, Flavin-containing Monooxygenases, UDP-glucuronosyltransferases and Sulfotransferases - the most important Phase I and Phase II drug metabolising enzymes - and a \'WhichP450\' model that predicts the Cytochrome P450 isoform(s) responsible for a compound\'s metabolism.The regioselectivity models are based on a mechanistic understanding of these enzymes\' actions and use quantum mechanical simulations with machine learning methods to accurately predict sites of metabolism and the resulting metabolites. We train heuristics based on the outputs of the \'WhichEnzyme\', \'WhichP450\', and regioselectivity models to determine the most likely routes of metabolism and metabolites to be observed experimentally.Finally, we demonstrate that this combination delivers high sensitivity in identifying experimentally reported metabolites and higher precision than other methods for predicting in vivo metabolite profiles.
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  • 文章类型: Journal Article
    由于COVID-19,疾病通过航空运输传播已成为全球各国公共卫生的重要问题。此外,大众运输(例如航空旅行)是感染在几周内传播到所有国家的根本原因。在这个研究领域的最近两年,许多研究已经应用机器学习方法来预测COVID-19在不同环境中的传播,并获得最佳结果。这些研究已经实现了算法,方法,技术,和其他统计模型以准确性形式分析信息。因此,这项研究的重点是分析COVID-19在国际机场网络中的传播。最初,我们对算法的技术文献进行了回顾,技术,以及用于在两点之间生成路线的定理,包括对2017年至2021年间在索引期刊上发表的80篇科学论文的分析。随后,我们分析了国际机场数据库和2020年至2022年COVID-19传播的信息,以开发确定机场路线和预防疾病传播的算法(DetARPDS).这种计算算法的主要目的是生成感染COVID-19的人过境国际机场网络所采取的路线。DetARPDS算法使用图论来映射国际机场网络,使用地理分配来定位每个终端(顶点),而终端之间的距离是用欧几里得距离计算的。此外,所提出的算法采用Dijkstra算法生成从起点到目的地航空终端的路线模拟。然后将生成的路线与按时间顺序排列的传染病信息进行比较,以确定它们是否符合病毒传播的时间性。最后,所获得的结果在确定疾病传播的整个途径方面达到了93.46%的高概率。最重要的是,算法的结果改进了不同的计算方面,例如对感染率较高的机场进行时间处理和检测,与文献综述中显示的其他类似研究相比。
    Due to COVID-19, the spread of diseases through air transport has become an important issue for public health in countries globally. Moreover, mass transportation (such as air travel) was a fundamental reason why infections spread to all countries within weeks. In the last 2 years in this research area, many studies have applied machine learning methods to predict the spread of COVID-19 in different environments with optimal results. These studies have implemented algorithms, methods, techniques, and other statistical models to analyze the information in accuracy form. Accordingly, this study focuses on analyzing the spread of COVID-19 in the international airport network. Initially, we conducted a review of the technical literature on algorithms, techniques, and theorems for generating routes between two points, comprising an analysis of 80 scientific papers that were published in indexed journals between 2017 and 2021. Subsequently, we analyzed the international airport database and information on the spread of COVID-19 from 2020 to 2022 to develop an algorithm for determining airport routes and the prevention of disease spread (DetARPDS). The main objective of this computational algorithm is to generate the routes taken by people infected with COVID-19 who transited the international airport network. The DetARPDS algorithm uses graph theory to map the international airport network using geographic allocations to position each terminal (vertex), while the distance between terminals was calculated with the Euclidian distance. Additionally, the proposed algorithm employs the Dijkstra algorithm to generate route simulations from a starting point to a destination air terminal. The generated routes are then compared with chronological contagion information to determine whether they meet the temporality in the spread of the virus. Finally, the obtained results are presented achieving a high probability of 93.46% accuracy for determining the entire route of how the disease spreads. Above all, the results of the algorithm proposed improved different computational aspects, such as time processing and detection of airports with a high rate of infection concentration, in comparison with other similar studies shown in the literature review.
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  • 文章类型: Journal Article
    There is a lack of information on the number of horses shipped globally by air annually, the purpose of air travel and the routes of their journeys. This pilot study aimed to collect retrospective data on the international movements of horses by air from 2018 to 2021, describe their routes, and identify the possible effects of the coronavirus SARS-CoV-2 (COVID-19) pandemic. Equine transport data was gathered from 7 of 15 international shipping companies (ISCs) and 5 of 8 airlines contacted by email. The seven ISCs performed a median of 10,401 horse movements annually, ranging from a few hundred to several thousand movements per company, most frequently in Europe (Western and Northern Europe), Middle East/Africa (Middle East, Southern Africa), Asia Pacific (Australia), and the Americas (North and South America). The five airlines performed a median of 10,656 horse movements annually, importing and exporting horses to and from Europe, North America, Australasia, and the Middle East. For all but one airline, the number of horse movements decreased in 2020. The number and journey characteristics of horses transported by air require further scientific studies focused on the epidemiological and welfare risks unique to this type of transport to enable the development and implementation of best practices and regulations based on objective evidence.
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  • 文章类型: Journal Article
    杂原子沸石作为一类重要的沸石,由于其独特的性能,在工业催化过程中得到了广泛的应用。作为最具代表性的杂原子沸石之一,钛硅酸盐沸石已广泛用于有机底物与H2O2的选择性氧化,如环己酮氨肟化,烯烃的环氧化,和苯酚羟基化。在这次审查中,简要综述了近年来TS-1分子筛的合成研究进展,包括使用低成本原材料(有机模板,硅,和钛源),开发新的合成路线(后处理合成,干凝胶转化合成,无溶剂合成,和微波辅助合成),和增强TS-1晶体中传质的新策略(合成分级和纳米尺寸的TS-1沸石)。这篇综述将有助于研究人员对TS-1分子筛的合成有更深入的了解,为今后设计和制备高效的TS-1催化剂提供新的契机。
    Heteroatomic zeolites as an important class of zeolites, have been widely applied in industrially catalytic processes due to their unique properties. As one of the most representative heteroatomic zeolites, titanosilicate zeolites have been extensively used in the selective oxidations of organic substrates with H2O2 such as cyclohexanone ammoximation, epoxidation of alkenes, and phenol hydroxylation. In this review, recent advances in the synthesis of TS-1 zeolite are briefly summarized, including use of low-cost raw materials (organic templates, silicon, and titanium sources), development of new synthesis routes (post-treatment synthesis, dry-gel conversion synthesis, solvent-free synthesis, and microwave-assisted synthesis), and new strategy for enhanced mass transfer in TS-1 crystals (synthesis of hierarchical and nanosized TS-1 zeolite). This review might help researchers to have a deep understanding on the synthesis of TS-1 zeolite and provide a new opportunity for the design and preparation of highly efficient TS-1 catalysts in the future.
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  • 文章类型: Journal Article
    在马匹运输期间,旅行条件被认为是福利风险。这项研究旨在记录旅程,旅程条件,以及到达意大利北部和南部两个不同屠宰场时处理过的马匹的福利状况,寻找旅行条件和福利问题之间可能的关联。根据标准化协议,在到达屠宰场时,对来自32个不同旅程的613匹草马和轻品种马的福利状况进行了评估,使用基于动物的(ABMs)和基于环境的(EBMs)措施。发现驾驶员的技能和车辆特征大多符合EC1/2005。马在单海湾旅行,与行驶方向成90°,平均行程时间为26.5±14h。到达屠宰场时,马匹被搬运工卸下,通过halter和绳子。不愿意卸载的普遍存在,受伤,鼻部,泪道排出率为22.2%,24.6%,11.6%,10%,分别。旅程持续时间,卸载持续时间,车辆变更,长时间停止,处理程序/驱动程序\'技能,温度,季节,和马的个体特征与马的福利和健康状况有关(均p<0.05)。我们的研究证实了以下假设:适当的旅行条件对于保护长途运输的破碎/处理的马匹的福利至关重要。
    During horse transportation, the journey conditions are considered a welfare risk. This study aimed to document journeys, journey conditions, and welfare status of handled horses on arrival at two different slaughterhouses in Northern and Southern Italy, to find possible associations between journey conditions and welfare problems. The welfare status of 613 draft-breed and light-breed horses from 32 different journeys was evaluated on arrival at the slaughterhouses with a standardized protocol, using animal-based (ABMs) and environmental-based (EBMs) measures. The drivers’ skills and vehicle characteristics were found to be mostly compliant with EC 1/2005. The horses traveled in single bays, 90° to the direction of travel for an average journey duration of 26.5 ± 14 h. On arrival at the slaughterhouses, the horses were unloaded by handlers, via halter and rope. The prevalence of reluctance to unload, injuries, nasal, and lacrimal discharge was 22.2%, 24.6%, 11.6%, and 10%, respectively. Journey duration, unloading duration, vehicle changes, long stops, handlers/drivers’ skills, temperature, season, and horse individual characteristics were associated with horses’ welfare and health status (all p < 0.05). Our study confirms the hypothesis that appropriate journey conditions are of crucial importance to safeguard the welfare of broken/handled horses transported over long distances for slaughter.
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  • 文章类型: Journal Article
    恶性肿瘤的常见治疗方法包括手术、化疗,放射治疗,免疫疗法,靶向治疗,等。,其中化疗起着重要作用。然而,化疗在杀死肿瘤细胞的同时带来相应的副作用,恶心和呕吐是化疗引起的最常见不良反应。它不仅影响病人的食欲,导致营养不良和电解质紊乱,但也降低了患者对治疗的依从性,这进一步加剧了疾病。因此,快速预防和治疗化疗引起的恶心和呕吐(CINV)非常重要。此外,随着医学的不断发展,越来越多的止吐药物被开发出来。目前,化疗引起的恶心和呕吐最常见的止吐剂是NK-1R拮抗剂,5-HT3R拮抗剂,还有地塞米松.令人惊讶的是,奥氮平,经常用作精神药物,已被发现是一种有效的止吐剂,与其他药物的安全性相似。然而,尽管有许多关于奥氮平止吐作用的研究,其综合应用尚不清楚。因此,本文就奥氮平的止吐作用机制和安全性进行综述,经济成本,剂量,给药时间,和药物输送方面。
    Common treatment methods for malignant tumors include surgery, chemotherapy, radiotherapy, immunotherapy, targeted therapy, etc., among which chemotherapy plays an important role. However, chemotherapy brings corresponding side effects while killing tumor cells, and nausea and vomiting are the most common adverse reactions induced by chemotherapy. It not only affects the patient\'s appetite, resulting in malnutrition and electrolyte disturbances, but also reduces the patient\'s compliance with treatment, which further aggravates the disease. Thus, it is important to quickly prevent and cure nausea and vomiting induced by chemotherapy (CINV). In addition, with the continuous development of medicine, more and more antiemetic drugs have been developed. At present, the most common antiemetic agents for chemotherapy-induced nausea and vomiting are NK-1R antagonists, 5-HT3R antagonists, and dexamethasone. Surprisingly, olanzapine, often used as a psychotropic drug, has been found to be an effective antiemetic and is similar to other regimens on the safety of medicine. However, although there are numerous studies on the antiemetic effects of olanzapine, its comprehensive application remains unclear. Therefore, this review will elaborate the antiemetic effect of olanzapine in terms of the antiemetic mechanism and the safety, economic cost, dose, administration time, and drug delivery aspects.
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  • 文章类型: Journal Article
    背景:视频内镜腹股沟淋巴结清扫术(VEIL)比开放手术治疗外阴癌的并发症少。没有高水平的证据比较VEIL的两种途径(VEIL-H和VEIL-L)的疗效和安全性。
    方法:我们对2000年至2020年关于VEIL治疗外阴癌的报道进行了全面的文献检索,并回顾了我们的经验。数据提取包括患者特征,围手术期指标,术后并发症,和癌症复发。
    结果:共有11项符合条件的研究纳入了系统评价。九项研究仅包括一条VEIL途径,其他两项研究直接比较了VEIL的两种途径。VEIL-L组平均手术时间为85(range,33-180.12)分钟,VEIL-H组为112(范围,35-170.79)分钟。VEIL-L组的平均失血量为9(范围,5-30)mL,VEIL-H组为96(范围,5.5-214.8)mL。VEIL-L组术中平均切除淋巴结数为9(范围,7.5-13.2),在VEIL-H组中为14(范围,9.5-16).两组之间的癌症复发率没有显着差异。我们在队列研究中发现了类似的结果。
    结论:手术时间,术中失血,VEIL-L程序的引流时间似乎少于VEIL-H程序的引流时间。VEIL-L和VEIL-H在淋巴结清扫术中疗效相当,手术相关并发症,和癌症复发率。
    BACKGROUND: Video endoscopic inguinal lymphadenectomy (VEIL) has fewer complications than open surgery for vulva cancer. No high-level evidence comparing the efficacy and safety of the two routes of VEIL (VEIL-H and VEIL-L) is available.
    METHODS: We performed a comprehensive literature search for reports on VEIL for vulva cancer from 2000 to 2020 and reviewed our experience. Data extraction includes patients\' characteristics, perioperative indicators, postoperative complications, and cancer recurrence.
    RESULTS: A total of 11 eligible studies were included in the systematic review. Nine studies included only one route of VEIL, and the other two studies directly compared the two routes of VEIL. The average operation time of the VEIL-L group was 85 (range, 33-180.12) minutes, and that of the VEIL-H group was 112 (range, 35-170.79) minutes. The average blood loss of the VEIL-L group was 9 (range, 5-30) mL, and that of the VEIL-H group was 96 (range, 5.5-214.8) mL. The average number of intraoperatively removed lymph nodes in the VEIL-L group was 9 (range, 7.5-13.2), and that in the VEIL-H group was 14 (range, 9.5-16). No significant difference was observed in the cancer recurrence rate between the two groups. We found similar results in our cohort study.
    CONCLUSIONS: The operation time, intraoperative blood loss, and time of drainage of the VEIL-L procedure seemed less than those of the VEIL-H procedure. VEIL-L and VEIL-H were equivalent in the efficacy of lymph node dissection, surgery-related complications, and cancer recurrence rate.
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  • 文章类型: Journal Article
    目的:首次在结直肠癌(CRC)中评估实体瘤的分子发病机制。迄今为止,已发现≤100个具有体细胞改变的基因通过特定途径相互关联地促进肿瘤转化。根据腺瘤到癌的序列,回顾了通过基因组景观进行结直肠癌发生的过程,如一系列组织学和流行病学观察所示。
    方法:本文综述了PubMed(1980-2021)的相关文献。
    结果:CRC发展的主要途径,染色体不稳定性(CIN),微卫星不稳定性(MSI),和锯齿状路线通过CIN或MSI,通过各自的分子途径进行大肠癌的发生。也可以通过评估家族性CRC(FCRC)和基因型-表型相关性来确定CRC致癌作用的特定方面。特定的致病基因改变仍有待在几个FCRC中鉴定。否则,最近验证的FCRC尤其值得注意,例如,EPCAM相关Lynch综合征,聚合酶校对相关息肉病,RNF43相关息肉综合征或NTHL1肿瘤综合征,和遗传性混合性息肉综合征.描述了致癌景观,包括代表性的通路基因,致癌的三种途径,家庭CRC,基因型-表型相关性,致病基因的鉴定,和共有分子亚型(CMS)。
    结论:使用多基因小组(MGP)的全基因组研究促进了对先前未识别的与结直肠癌发生有关的基因的高吞吐量检测。建议使用旨在鉴定稀有变体的新方法来考虑其与分子发病机理有关的改变。
    OBJECTIVE: The molecular pathogenesis of solid tumour was first assessed in colorectal cancer (CRC). To date, ≤ 100 genes with somatic alterations have been found to inter-connectively promote neoplastic transformation through specific pathways. The process of colorectal carcinogenesis via genome landscape is reviewed on the basis of an adenoma-to-carcinoma sequence, as shown by serial histological and epidemiological observations.
    METHODS: The relevant literatures from PubMed (1980-2021) have been reviewed for this article.
    RESULTS: The major routes of CRC development, chromosomal instability (CIN), microsatellite instability (MSI), and the serrated route either via CIN or MSI, proceed through the respective molecular pathway of colorectal carcinogenesis. Particular aspects of CRC carcinogenesis can also be determined by evaluating familial CRCs (FCRC) and genotype-phenotype correlations. Specific causative gene alterations still leave to be identified in several FCRCs. Otherwise, recently verified FCRC can be particularly notable, for example, EPCAM-associated Lynch syndrome, polymerase proofreading-associated polyposis, RNF43-associated polyposis syndrome or NTHL1 tumour syndrome, and hereditary mixed polyposis syndrome. The oncogenic landscape is described, including representative pathway genes, the three routes of carcinogenesis, familial CRCs, genotype-phenotype correlations, the identification of causative genes, and consensus molecular subtypes (CMS).
    CONCLUSIONS: Whole genome research using multi-gene panels (MGPs) has facilitated high through-put detection of previously unidentified genes involved in colorectal carcinogenesis. New approaches designed to identify rare variants are recommended to consider their alterations implicated in the molecular pathogenesis.
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