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Verbesserung des Record Linkage für die Gesundheitsforschung in Deutschland 德国改进健康研究的记录链接
Pub Date : 2023-12-14 DOI: arxiv-2312.10093
Timm Intemann, Knut Kaulke, Dennis-Kenji Kipker, Vanessa Lettieri, Christoph Stallmann, Carsten O. Schmidt, Lars Geidel, Martin Bialke, Christopher Hampf, Dana Stahl, Martin Lablans, Florens Rohde, Martin Franke, Klaus Kraywinkel, Joachim Kieschke, Sebastian Bartholomäus, Anatol-Fiete Näher, Galina Tremper, Mohamed Lambarki, Stefanie March, Fabian Prasser, Anna Christine Haber, Johannes Drepper, Irene Schlünder, Toralf Kirsten, Iris Pigeot, Ulrich Sax, Benedikt Buchner, Wolfgang Ahrens, Sebastian C. Semler
Record linkage means linking data from multiple sources. This approachenables the answering of scientific questions that cannot be addressed usingsingle data sources due to limited variables. The potential of linked data forhealth research is enormous, as it can enhance prevention, treatment, andpopulation health policies. Due the sensitivity of health data, there arestrict legal requirements to prevent potential misuse. However, theserequirements also limit the use of health data for research, thereby hinderinginnovations in prevention and care. Also, comprehensive Record linkage inGermany is often challenging due to lacking unique personal identifiers orinteroperable solutions. Rather, the need to protect data is often weighedagainst the importance of research aiming at healthcare enhancements: forinstance, data protection officers may demand the informed consent ofindividual study participants for data linkage, even when this is notmandatory. Furthermore, legal frameworks may be interpreted differently onvarying occasions. Given both, technical and legal challenges, record linkagefor health research in Germany falls behind the standards of other Europeancountries. To ensure successful record linkage, case-specific solutions must bedeveloped, tested, and modified as necessary before implementation. This paperdiscusses limitations and possibilities of various data linkage approachestailored to different use cases in compliance with the European General DataProtection Regulation. It further describes requirements for achieving a moreresearch-friendly approach to linking health data records in Germany.Additionally, it provides recommendations to legislators. The objective of thiswork is to improve record linkage for health research in Germany.
记录关联是指将多个来源的数据关联起来。这种方法可以回答由于变量有限而无法使用单一数据源解决的科学问题。链接数据在健康研究方面的潜力是巨大的,因为它可以加强预防、治疗和人口健康政策。由于健康数据的敏感性,有严格的法律要求来防止潜在的滥用。然而,这些要求也限制了健康数据在研究中的使用,从而阻碍了预防和护理方面的创新。此外,在德国,由于缺乏独特的个人标识符或可互操作的解决方案,全面的记录链接往往具有挑战性。相反,保护数据的必要性往往要与旨在提高医疗保健水平的研究的重要性相权衡:例如,数据保护官员可能会要求研究参与者在知情的情况下同意数据链接,即使这并非强制性的。此外,法律框架在不同的场合可能会有不同的解释。鉴于技术和法律两方面的挑战,德国健康研究的记录关联落后于其他欧洲国家的标准。为确保记录关联的成功,必须在实施前开发、测试并在必要时修改针对具体案例的解决方案。本文讨论了根据《欧洲通用数据保护条例》针对不同使用案例所定制的各种数据链接方法的局限性和可能性。此外,本文还向立法者提出了建议。这项工作的目标是改进德国健康研究的记录链接。
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引用次数: 0
Timing decisions as the next frontier for collective intelligence 定时决策是集体智慧的下一个前沿领域
Pub Date : 2023-12-01 DOI: arxiv-2312.02187
Albert B. Kao, Shoubhik Banerjee, Fritz Francisco, Andrew M. Berdahl
The past decade has witnessed a dramatically growing interest in collectiveintelligence - the phenomenon of groups having an ability to make more accuratedecisions than isolated individuals. However, the vast majority of studies todate have focused, either explicitly or implicitly, on spatial decisions (e.g.,potential nest sites, food patches, or migration directions). We highlight theequally important, but severely understudied, realm of temporal collectivedecision-making, i.e., decisions about when to perform an action. We argue thattemporal collective decision making is likely to differ from spatial decisionmaking in several crucial ways and probably involves different mechanisms,model predictions, and experimental outcomes. We anticipate that researchfocused on temporal decisions should lead to a radically expanded understandingof the adaptiveness and constraints of living in groups.
在过去的十年中,人们对集体智慧的兴趣与日俱增--群体有能力做出比孤立个体更准确的决策。然而,迄今为止的绝大多数研究都或明或暗地关注空间决策(如潜在的巢穴、食物区或迁徙方向)。我们强调了同样重要但研究严重不足的时间集体决策领域,即关于何时执行某一行动的决策。我们认为,时间集体决策可能在几个关键方面不同于空间决策,而且可能涉及不同的机制、模型预测和实验结果。我们预计,以时间决策为重点的研究将从根本上拓展对群居生活的适应性和制约因素的理解。
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引用次数: 0
Exploring the Relationship Between COVID-19 Induced Economic Downturn and Women's Nutritional Health Disparities 探讨COVID-19引发的经济衰退与女性营养健康差距之间的关系
Pub Date : 2023-11-20 DOI: arxiv-2311.12080
Alaa M. Sadeq
This study explores how the COVID-19 pandemic's economic impact hasexacerbated nutritional health disparities among women. It sought to understandthe effects of economic challenges on women's dietary choices and access tonutritious food across different socioeconomic groups. Using a mixed-methodsapproach, the research combined quantitative data from health and economicrecords with qualitative insights from interviews with diverse women. The studyanalyzed trends in nutritional health and economic factors before and after thepandemic and gathered personal accounts regarding nutrition and economicdifficulties during this period. Findings showed a clear link between theeconomic downturn and deteriorating nutritional health, particularly inlow-income and marginalized groups. These women reported decreased access tohealthy foods and an increased dependence on less nutritious options due tobudget constraints, leading to a decline in dietary quality. This trend wasless evident in higher-income groups, highlighting stark disparities. Thepandemic intensified pre-existing nutritional inequalities, with the mostvulnerable groups facing greater adverse effects. However, community supportand public health measures provided some relief. In summary, the pandemic'seconomic repercussions have indirectly impaired women's nutritional health,especially among the socioeconomically disadvantaged. This highlights thenecessity for tailored nutritional interventions and economic policies focusedon safeguarding women's health.
本研究探讨了COVID-19大流行的经济影响如何加剧了女性之间的营养健康差距。它试图了解经济挑战对不同社会经济群体妇女饮食选择和获得营养食品的影响。该研究采用混合方法,将来自健康和经济记录的定量数据与来自不同女性访谈的定性见解结合起来。该研究分析了疫情前后营养健康和经济因素的趋势,并收集了这一时期有关营养和经济困难的个人资料。研究结果表明,经济衰退与营养健康状况恶化之间存在明显联系,尤其是在低收入和边缘群体中。这些妇女报告说,由于预算限制,她们获得健康食品的机会减少,越来越依赖营养较少的选择,导致饮食质量下降。这一趋势在高收入群体中不那么明显,凸显了明显的差距。疫情加剧了原有的营养不平等,最脆弱的群体面临更大的不利影响。然而,社区支持和公共卫生措施提供了一些缓解。总而言之,这种流行病的经济影响间接损害了妇女的营养健康,特别是社会经济上处于不利地位的妇女。这突出表明,有必要采取有针对性的营养干预措施和侧重于保障妇女健康的经济政策。
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引用次数: 0
MIFA: Metadata, Incentives, Formats, and Accessibility guidelines to improve the reuse of AI datasets for bioimage analysis MIFA:元数据、激励、格式和可访问性指南,以改善生物图像分析中人工智能数据集的重用
Pub Date : 2023-11-17 DOI: arxiv-2311.10443
eresa Zulueta-Coarasa, Florian Jug, Aastha Mathur, Josh Moore, Arrate Muñoz-Barrutia, Liviu Anita, Kola Babalola, Pete Bankhead, Perrine Gilloteaux, Nodar Gogoberidze, Martin Jones, Gerard J. Kleywegt, Paul Korir, Anna Kreshuk, Aybüke Küpcü Yoldaş, Luca Marconato, Kedar Narayan, Nils Norlin, Bugra Oezdemir, Jessica Riesterer, Norman Rzepka, Ugis Sarkans, Beatriz Serrano, Christian Tischer, Virginie Uhlmann, Vladimír Ulman, Matthew Hartley
Artificial Intelligence methods are powerful tools for biological imageanalysis and processing. High-quality annotated images are key to training anddeveloping new methods, but access to such data is often hindered by the lackof standards for sharing datasets. We brought together community experts in aworkshop to develop guidelines to improve the reuse of bioimages andannotations for AI applications. These include standards on data formats,metadata, data presentation and sharing, and incentives to generate newdatasets. We are positive that the MIFA (Metadata, Incentives, Formats, andAccessibility) recommendations will accelerate the development of AI tools forbioimage analysis by facilitating access to high quality training data.
人工智能方法是生物图像分析和处理的有力工具。高质量的注释图像是训练和开发新方法的关键,但是由于缺乏共享数据集的标准,对这些数据的访问往往受到阻碍。我们将社区专家聚集在一个研讨会上,制定指导方针,以改善人工智能应用程序对生物图像和注释的重用。其中包括数据格式、元数据、数据表示和共享的标准,以及生成新数据集的激励措施。我们确信MIFA(元数据、激励、格式和可访问性)建议将促进高质量训练数据的访问,从而加速生物图像分析人工智能工具的开发。
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引用次数: 0
A Category of Genes 一类基因
Pub Date : 2023-11-14 DOI: arxiv-2311.08546
Yanying Wu
Understanding how genes interact and relate to each other is a fundamentalquestion in biology. However, current practices for describing theserelationships, such as drawing diagrams or graphs in a somewhat arbitrarymanner, limit our ability to integrate various aspects of the gene functionsand view the genome holistically. To overcome these limitations, we need a moreappropriate way to describe the intricate relationships between genes.Interestingly, category theory, an abstract field of mathematics seeminglyunrelated to biology, has emerged as a powerful language for describingrelations in general. We propose that category theory could provide a frameworkfor unifying our knowledge of genes and their relationships. As a starting point, we construct a category of genes, with its morphismsabstracting various aspects of the relationships betweens genes. Theserelationships include, but not limited to, the order of genes on thechromosomes, the physical or genetic interactions, the signalling pathways, thegene ontology causal activity models (GO-CAM) and gene groups. Previously, theywere encoded by miscellaneous networks or graphs, while our work unifies themin a consistent manner as a category. By doing so, we hope to view therelationships between genes systematically. In the long run, this paves apromising way for us to understand the fundamental principles that govern generegulation and function.
了解基因如何相互作用和相互联系是生物学中的一个基本问题。然而,目前描述这些关系的做法,例如以某种武断的方式绘制图表或图形,限制了我们整合基因功能的各个方面并从整体上看待基因组的能力。为了克服这些限制,我们需要一种更合适的方式来描述基因之间复杂的关系。有趣的是,范畴论,一个看似与生物学无关的抽象数学领域,已经成为一种描述一般关系的强大语言。我们提出范畴理论可以为我们对基因及其关系的认识提供一个统一的框架。作为起点,我们构建了一个基因类别,其形态抽象了基因之间关系的各个方面。这些关系包括,但不限于,染色体上的基因顺序,物理或遗传相互作用,信号通路,基因本体因果活动模型(GO-CAM)和基因群。以前,它们是由各种各样的网络或图形编码的,而我们的工作以一致的方式将它们统一为一个类别。通过这样做,我们希望系统地观察基因之间的关系。从长远来看,这为我们理解调控和功能的基本原则铺平了一条有希望的道路。
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引用次数: 0
The Biological Data Sustainability Paradox 生物数据可持续性悖论
Pub Date : 2023-11-09 DOI: arxiv-2311.05668
Terence R. Johnson, Philip E. Bourne
Biological data in digital form has become a, if not the, driving forcebehind innovations in biology, medicine, and the environment. No study and nomodel would be complete without access to digital data (including text)collected by others and available in public repositories. With this ascent inthe fundamental importance of data for reproducible scientific progress hascome a troubling paradox.
数字形式的生物数据即使不是生物、医学和环境创新背后的驱动力,也已经成为一种推动力。如果不能访问由他人收集并在公共存储库中提供的数字数据(包括文本),那么任何研究和模型都是不完整的。随着数据对可重复性科学进步的基本重要性的提升,出现了一个令人不安的悖论。
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引用次数: 0
Rooting capacity of hardwood cuttings of some fruit trees in relation to cutting pattern 某些果树硬木扦插生根能力与扦插方式的关系
Pub Date : 2023-11-08 DOI: arxiv-2311.04953
Aram Akram Mohammed, Rasul Rafiq Aziz, Faraydwn Karim Ahmad, Ibrahim Maaroof Noori, Tariq Abubakr Ahmad
Study two cut patterns in hardwood cuttings of (Cydonia oblonga), (Punicagranatum) and (Ficus carica). The cuttings have been cut either straight withdifferent internode stub lengths [0 (just onto the basal node as control), 0.5,1.0, 2.0 or 3.0 cm below the basal node], or slant with 45 degree angle foreach length mentioned above (except the first length (0 cm). Effect of thebasal cut directions on rooting percentage and other shoot and rootcharacteristics were not significantly different, while the effect of slant cutpattern on one-side rooting at the basal margin observed in some quincecuttings but it was rarely observed in pomegranate and fig cuttings. Quincecuttings gave no different rooting percentage and other shoot and rootcharacteristics significantly with different internode stub lengths. While,internode stub 1 and 2 cm in pomegranate cuttings, and 0 cm in fig cuttingsgave the best rooting percentages 44.44% and 100%, respectively. Also,interaction effects of the two factors on rooting percentage and other shootand root characteristics were just significantly different in pomegranate andfig cuttings. The best rooting capacity achieved in pomegranate cuttings(49.99%) in those were cut straightly at the base with 1 and 2 cm basalinternode stub lengths, and fig cuttings straightly cut at the base with 0 and1 cm basal internode stub lengths gave the highest rooting capacity (100%).
研究了阔叶树(Cydonia oblonga)、石榴木(Punicagranatum)和无花果(Ficus carica)的两种切花模式。扦插的方法有两种,一种是采用不同节间短段长度的直扦插法[0(仅在基节上作为对照),一种是在基节下0.5、1.0、2.0或3.0厘米],另一种是采用45度角的斜扦插法(除了第一个长度(0厘米))。基部扦插方向对生根率及其他茎根性状的影响差异不显著,而斜扦插方式对基缘单侧生根的影响在部分梅花扦插中有观察到,但在石榴和无花果扦插中很少观察到。不同节间根长对不同插穗生根率及其他茎根性状影响不显著。石榴插条节间1、2 cm和无花果插条节间0 cm生根率最高,分别为44.44%和100%。在石榴和无花果插枝上,两个因子对生根率和其他枝根性状的互作效应也有显著差异。石榴扦插生根能力最佳的扦插方式为基部节间长度为1和2 cm的扦插方式(49.99%),而基部节间长度为0和1 cm的无花果扦插生根能力最高(100%)。
{"title":"Rooting capacity of hardwood cuttings of some fruit trees in relation to cutting pattern","authors":"Aram Akram Mohammed, Rasul Rafiq Aziz, Faraydwn Karim Ahmad, Ibrahim Maaroof Noori, Tariq Abubakr Ahmad","doi":"arxiv-2311.04953","DOIUrl":"https://doi.org/arxiv-2311.04953","url":null,"abstract":"Study two cut patterns in hardwood cuttings of (Cydonia oblonga), (Punica\u0000granatum) and (Ficus carica). The cuttings have been cut either straight with\u0000different internode stub lengths [0 (just onto the basal node as control), 0.5,\u00001.0, 2.0 or 3.0 cm below the basal node], or slant with 45 degree angle for\u0000each length mentioned above (except the first length (0 cm). Effect of the\u0000basal cut directions on rooting percentage and other shoot and root\u0000characteristics were not significantly different, while the effect of slant cut\u0000pattern on one-side rooting at the basal margin observed in some quince\u0000cuttings but it was rarely observed in pomegranate and fig cuttings. Quince\u0000cuttings gave no different rooting percentage and other shoot and root\u0000characteristics significantly with different internode stub lengths. While,\u0000internode stub 1 and 2 cm in pomegranate cuttings, and 0 cm in fig cuttings\u0000gave the best rooting percentages 44.44% and 100%, respectively. Also,\u0000interaction effects of the two factors on rooting percentage and other shoot\u0000and root characteristics were just significantly different in pomegranate and\u0000fig cuttings. The best rooting capacity achieved in pomegranate cuttings\u0000(49.99%) in those were cut straightly at the base with 1 and 2 cm basal\u0000internode stub lengths, and fig cuttings straightly cut at the base with 0 and\u00001 cm basal internode stub lengths gave the highest rooting capacity (100%).","PeriodicalId":501219,"journal":{"name":"arXiv - QuanBio - Other Quantitative Biology","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138538569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Higher Mediterranean diet score is associated with longer time between relapses in Australian females with multiple sclerosis 在澳大利亚多发性硬化症女性患者中,地中海饮食评分越高,复发间隔时间越长
Pub Date : 2023-11-02 DOI: arxiv-2311.01042
Hajar Mazahery, Alison Daly, Ngoc Minh Pham, Madeleine Stephens, Eleanor Dunlop, Anne-Louise Ponsonby, Ausimmune/AusLong Investigator Group, Lucinda J Black
A higher Mediterranean diet score has been associated with lower likelihoodof multiple sclerosis. However, evidence regarding its association with diseaseactivity and progression is limited. Using data from the AusLong Study, wetested longitudinal associations (over 10 years follow-up) between thealternate Mediterranean diet score (aMED) and aMED-Red (including moderateconsumption of unprocessed red meat) and time between relapses and disabilitymeasured by Expanded Disability Status Scale (EDSS) (n=132; 27 males, 105females). We used covariate-adjusted survival analysis for time betweenrelapses, and time series mixed-effects negative binomial regression for EDSS.After adjusting for covariates, both higher aMED (aHR=0.94, 95%CI: 0.90, 0.99,p=0.009) and higher aMED-Red (aHR=0.93, 95%CI: 0.89, 0.97, p=0.001) wereassociated with significantly longer time between relapses in females. Whetherspecific dietary components of a Mediterranean diet are important in relationto relapses merits further study.
地中海饮食得分越高,患多发性硬化症的可能性越低。然而,关于其与疾病活动性和进展的关联的证据有限。使用来自AusLong研究的数据,我们测试了替代地中海饮食评分(aMED)和aMED- red(包括适度食用未加工的红肉)之间的纵向关联(超过10年的随访),以及通过扩展残疾状态量表(EDSS)测量的复发和残疾之间的时间(n=132;男性27人,女性105人)。我们使用协变量调整生存分析来分析复发间隔时间,并使用时间序列混合效应负二项回归来分析EDSS。校正协变量后,较高的aMED (aHR=0.94, 95%CI: 0.90, 0.99,p=0.009)和较高的aMED- red (aHR=0.93, 95%CI: 0.89, 0.97, p=0.001)与女性复发间隔时间显著延长相关。地中海饮食的特定饮食成分是否与复发有重要关系值得进一步研究。
{"title":"Higher Mediterranean diet score is associated with longer time between relapses in Australian females with multiple sclerosis","authors":"Hajar Mazahery, Alison Daly, Ngoc Minh Pham, Madeleine Stephens, Eleanor Dunlop, Anne-Louise Ponsonby, Ausimmune/AusLong Investigator Group, Lucinda J Black","doi":"arxiv-2311.01042","DOIUrl":"https://doi.org/arxiv-2311.01042","url":null,"abstract":"A higher Mediterranean diet score has been associated with lower likelihood\u0000of multiple sclerosis. However, evidence regarding its association with disease\u0000activity and progression is limited. Using data from the AusLong Study, we\u0000tested longitudinal associations (over 10 years follow-up) between the\u0000alternate Mediterranean diet score (aMED) and aMED-Red (including moderate\u0000consumption of unprocessed red meat) and time between relapses and disability\u0000measured by Expanded Disability Status Scale (EDSS) (n=132; 27 males, 105\u0000females). We used covariate-adjusted survival analysis for time between\u0000relapses, and time series mixed-effects negative binomial regression for EDSS.\u0000After adjusting for covariates, both higher aMED (aHR=0.94, 95%CI: 0.90, 0.99,\u0000p=0.009) and higher aMED-Red (aHR=0.93, 95%CI: 0.89, 0.97, p=0.001) were\u0000associated with significantly longer time between relapses in females. Whether\u0000specific dietary components of a Mediterranean diet are important in relation\u0000to relapses merits further study.","PeriodicalId":501219,"journal":{"name":"arXiv - QuanBio - Other Quantitative Biology","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138538666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Next-generation MRD assays: do we have the tools to evaluate them properly? 下一代MRD分析:我们有合适的工具来评估它们吗?
Pub Date : 2023-10-31 DOI: arxiv-2311.00015
Dan Stetson, Paul Labrousse, Hugh Russell, David Shera, Chris Abbosh, Brian Dougherty, J. Carl Barrett, Darren Hodgson, James Hadfield
Circulating tumour DNA (ctDNA) detection of molecular residual disease (MRD)in solid tumours correlates strongly with patient outcomes and is being adoptedas a new clinical standard. ctDNA levels are known to correlate with tumorvolume, and although the absolute levels vary across indication and histology,its analysis is driving the adoption of MRD. MRD assays must detect tumor whenimaging cannot and, as such, require very high sensitivity to detect the lowlevels of ctDNA found after curative intent therapy. The minimum threshold is0.01% Tumour Fraction but current methods like Archer and Signatera are limitedby detection sensitivity resulting in some patients receiving a false negativecall thereby missing out on earlier therapeutic intervention. Multiple vendorsare increasing the number of somatic variants tracked in tumour-informed andpersonalized NGS assays, from tens to thousands of variants. Most recently,assays using other biological features of ctDNA, e.g methylation orfragmentome, have been developed at the LOD required for clinical utility.These uniformed, or tumour-naive and non-personalised assays may be moreeasily, and therefore more rapidly, adopted in the clinic. However, this rapiddevelopment in MRD assay technology results in significant challenges inbenchmarking these new technologies for use in clinical trials. This is furthercomplicated by the fact that previous reference materials have focused onsomatic variants, and do not retain all of the epigenomic features assessed bynewer technologies. In this Comments and Controversy paper, we detail what isknown and what remains to be determined for optimal reference materials of MRDmethods and provide opinions generated during three-years of MRD technologybenchmarking in AstraZeneca Translational Medicine to help guide the communityconversation.
循环肿瘤DNA (ctDNA)检测在实体肿瘤中的分子残留病(MRD)与患者预后密切相关,正被作为一种新的临床标准采用。已知ctDNA水平与肿瘤体积相关,尽管绝对水平因适应症和组织学而异,但其分析正在推动MRD的采用。MRD检测必须在成像不能检测肿瘤的情况下检测到肿瘤,因此需要非常高的灵敏度来检测治疗目的治疗后发现的低水平ctDNA。最低阈值为0.01%肿瘤分数,但目前的方法,如Archer和Signatera,由于检测灵敏度的限制,导致一些患者接受假阴性,从而错过了早期的治疗干预。多家供应商正在增加在肿瘤信息和个性化NGS检测中跟踪的体细胞变异的数量,从数十个增加到数千个。最近,利用ctDNA的其他生物学特征(如甲基化或片段组)的检测已经在临床应用所需的LOD上得到了发展。这些统一的,或肿瘤初始和非个体化的检测方法可能更容易,因此更迅速地被临床采用。然而,MRD检测技术的快速发展给这些新技术在临床试验中的应用带来了巨大的挑战。由于以前的参考材料集中在体细胞变异上,并没有保留新技术评估的所有表观基因组特征,这使得情况更加复杂。在这篇评论和争议的论文中,我们详细介绍了MRD方法的已知和有待确定的最佳参考材料,并提供了在阿斯利康转化医学的三年MRD技术基准测试中产生的意见,以帮助指导社区对话。
{"title":"Next-generation MRD assays: do we have the tools to evaluate them properly?","authors":"Dan Stetson, Paul Labrousse, Hugh Russell, David Shera, Chris Abbosh, Brian Dougherty, J. Carl Barrett, Darren Hodgson, James Hadfield","doi":"arxiv-2311.00015","DOIUrl":"https://doi.org/arxiv-2311.00015","url":null,"abstract":"Circulating tumour DNA (ctDNA) detection of molecular residual disease (MRD)\u0000in solid tumours correlates strongly with patient outcomes and is being adopted\u0000as a new clinical standard. ctDNA levels are known to correlate with tumor\u0000volume, and although the absolute levels vary across indication and histology,\u0000its analysis is driving the adoption of MRD. MRD assays must detect tumor when\u0000imaging cannot and, as such, require very high sensitivity to detect the low\u0000levels of ctDNA found after curative intent therapy. The minimum threshold is\u00000.01% Tumour Fraction but current methods like Archer and Signatera are limited\u0000by detection sensitivity resulting in some patients receiving a false negative\u0000call thereby missing out on earlier therapeutic intervention. Multiple vendors\u0000are increasing the number of somatic variants tracked in tumour-informed and\u0000personalized NGS assays, from tens to thousands of variants. Most recently,\u0000assays using other biological features of ctDNA, e.g methylation or\u0000fragmentome, have been developed at the LOD required for clinical utility.\u0000These uniformed, or tumour-naive and non-personalised assays may be more\u0000easily, and therefore more rapidly, adopted in the clinic. However, this rapid\u0000development in MRD assay technology results in significant challenges in\u0000benchmarking these new technologies for use in clinical trials. This is further\u0000complicated by the fact that previous reference materials have focused on\u0000somatic variants, and do not retain all of the epigenomic features assessed by\u0000newer technologies. In this Comments and Controversy paper, we detail what is\u0000known and what remains to be determined for optimal reference materials of MRD\u0000methods and provide opinions generated during three-years of MRD technology\u0000benchmarking in AstraZeneca Translational Medicine to help guide the community\u0000conversation.","PeriodicalId":501219,"journal":{"name":"arXiv - QuanBio - Other Quantitative Biology","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138538572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Forum on immune digital twins: a meeting report 免疫数字双胞胎论坛:会议报告
Pub Date : 2023-10-26 DOI: arxiv-2310.18374
Reinhard LaubenbacherDepartment of Medicine, University of Florida, Gainesville, FL, Fred AdlerDepartment of Mathematics and School of Biological Sciences, University of Utah, Salt Lake City, UT, Gary AnDepartment of Surgery, University of Vermont, Burlington, VT, Filippo CastiglioneBiotechnology Research Center, Technology Innovation Institute, Abu Dhabi, United Arab Emirates, Stephen EubankBiocomplexity Institute and Initiative, University of Virginia, Charlottesville, VA, Luis L. FonsecaDepartment of Medicine, University of Florida, Gainesville, FL, James GlazierDepartment of Intelligent Systems Engineering, Indiana University, Bloomington, IN, Tomas HelikarDepartment of Biochemistry, University of Nebraska, Lincoln, NE, Marti Jett-TiltonU.S. Walter Reed Army Institute of Research, Silver Spring, MD, Denise KirschnerDepartment of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, Paul MacklinDepartment of Intelligent Systems Engineering, Indiana University, Bloomington, IN, Borna MehradDepartment of Medicine, University of Florida, Gainesville, FL, Beth MooreDepartment of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, Virginia PasourU.S. Army Research Office, Research Triangle Park, NC, Ilya ShmulevichInstitute for Systems Biology, Seattle, WA, Amber SmithDepartment of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, Isabel VoigtCenter for Clinical Neuroscience, Carl Gustav Carus University Hospital, Dresden, Germany, Thomas E. YankeelovDepartment of Biomedical Engineering, Oden Institute for Computational Engineering and Sciences, Departments of Biomedical Engineering, Diagnostic Medicine, Oncology, The University of Texas, Austin, TX, and Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Tjalf ZiemssenCenter for Clinical Neuroscience, Carl Gustav Carus University Hospital, Dresden, Germany
Medical digital twins are computational models of human biology relevant to agiven medical condition, which can be tailored to an individual patient,thereby predicting the course of disease and individualized treatments, animportant goal of personalized medicine. The immune system, which has a centralrole in many diseases, is highly heterogeneous between individuals, and thusposes a major challenge for this technology. If medical digital twins are tofaithfully capture the characteristics of a patient's immune system, we need toanswer many questions, such as: What do we need to know about the immune systemto build mathematical models that reflect features of an individual? What datado we need to collect across the different scales of immune system action? Whatare the right modeling paradigms to properly capture immune system complexity?In February 2023, an international group of experts convened in Lake Nona, FLfor two days to discuss these and other questions related to digital twins ofthe immune system. The group consisted of clinicians, immunologists,biologists, and mathematical modelers, representative of the interdisciplinarynature of medical digital twin development. A video recording of the entireevent is available. This paper presents a synopsis of the discussions, briefdescriptions of ongoing digital twin projects at different stages of progress.It also proposes a 5-year action plan for further developing this technology.The main recommendations are to identify and pursue a small number of promisinguse cases, to develop stimulation-specific assays of immune function in aclinical setting, and to develop a database of existing computational immunemodels, as well as advanced modeling technology and infrastructure.
医学数字双胞胎是与特定医疗条件相关的人类生物学计算模型,可以针对单个患者进行定制,从而预测疾病进程和个性化治疗,这是个性化医疗的一个重要目标。免疫系统在许多疾病中起着核心作用,但在个体之间具有高度异质性,因此对该技术提出了重大挑战。如果医学数字双胞胎要忠实地捕捉病人免疫系统的特征,我们需要回答许多问题,例如:我们需要知道什么关于免疫系统的知识来建立反映个体特征的数学模型?我们需要从免疫系统的不同层面收集哪些数据?什么是正确的建模范式来正确地捕捉免疫系统的复杂性?2023年2月,一个国际专家小组在佛罗里达州诺纳湖召开了为期两天的会议,讨论这些问题以及与免疫系统数字双胞胎相关的其他问题。该小组由临床医生、免疫学家、生物学家和数学建模师组成,代表了医学数字双胞胎发展的跨学科性质。整个事件的视频记录是可用的。本文简要介绍了正在进行的数字孪生项目在不同进展阶段的讨论和简要描述。它还提出了进一步发展这项技术的五年行动计划。主要建议是确定和追求少数有前途的用例,在临床环境中开发免疫功能的刺激特异性分析,并开发现有计算免疫模型的数据库,以及先进的建模技术和基础设施。
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引用次数: 0
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arXiv - QuanBio - Other Quantitative Biology
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