ancient DNA

古 DNA
  • 文章类型: Journal Article
    结核病(TB)是一种古老的慢性传染病,仍然是全球健康关注的问题。在人类遗骸中,最常见和最特征性的临床体征是涉及脊柱的骨骼改变,比如波特病。在古代人类遗骸中诊断结核病具有挑战性。因此,在这次系统审查中,作者调查了评估古代人类遗骸中Pott病的分子诊断的研究,旨在调查文献,绘制证据地图,并确定古病理学中结核病的差距和未来前景。我们的系统综述提供了一个完整的历史的波特病在古代。我们的搜索策略是在2022年8月至2023年3月之间执行的。作者最初确定了340条记录,最终纳入并评估了74项研究进行定性分析.由于与结核病相关的非特异性临床体征,如何最好地诊断人类的结核病仍然是一个中心点。然而,古代DNA(aDNA)分析,脂质生物标志物,在人类遗骸中的结核病研究中,spoligotyping可能是非常有用的工具。此外,我们建议提取和研究与分枝杆菌属固有免疫和适应性免疫有关的免疫反应基因。作为结核病古病理学中一种创新且被广泛忽视的方法。应整合补充方法,以提供研究人体遗骸中结核病的最佳方法。
    Tuberculosis (TB) is an ancient chronic infectious disease that remains a global health concern. In human remains, the most common and characteristic clinical signs are the skeletal modifications involving the spine, such as in Pott\'s disease. Diagnosing TB in ancient human remains is challenging. Therefore, in this systematic review, the authors investigated the studies assessing molecular diagnosis of Pott\'s disease in ancient human remains with the intention to survey the literature, map the evidence, and identify gaps and future perspectives on TB in paleopathology. Our systematic review offers a full contextualization of the history of Pott\'s disease in ancient times. Our search strategy was performed between August 2022 and March 2023. The authors initially identified 340 records, and 74 studies were finally included and assessed for qualitative analysis. Due to non-specific clinical signs associated with TB, how best to diagnose tuberculosis in human remains still represents a central point. Nevertheless, ancient DNA (aDNA) analysis, lipid biomarkers, and spoligotyping might be extremely useful tools in the study of TB in human remains. Moreover, we propose the extraction and study of immune response genes involved in innate and adaptive immunity versus Mycobacterium spp. as an innovative and vastly overlooked approach in TB paleopathology. Complementary methodologies should be integrated to provide the best approach to the study of TB in human remains.
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  • 文章类型: Journal Article
    目的:本文通过对以前的研究进行广泛的回顾并确定未来的研究可能性,介绍了过去疟疾调查的现状。
    方法:考虑了以前使用宏观和生物分子方法检测人体骨骼材料中疟疾的所有研究。
    方法:对学者使用的途径和方法以及他们获得的结果进行了评估,并讨论了局限性。
    结果:疟疾和多孔病变之间存在联系,在疟疾流行地区患病率明显更高,然而,它们不是疟疾的病原体或特异性。可以使用生物分子技术来识别疟疾,然而,迄今为止,还没有完全令人满意的方法能够始终如一地诊断该疾病。
    结论:使用宏观和生物分子技术,可以在过去的人群中调查疟疾,并研究该疾病的影响。然而,这不是一个简单的过程,需要使用多条证据才能获得最佳结果。
    结论:关于在过去人群中可以和不可以识别疟疾的方法的广泛讨论,以及对新方法的建议,为未来对这种衰弱的研究提供了垫脚石,全球疾病。
    结论:疟疾是一种难以进行考古研究的疾病,成功的鉴定取决于许多内在和外在因素。
    UNASSIGNED:对多孔病变的更多大规模空间分析以及针对不同组织或分子进行生物分子鉴定可能会提高对疟疾的考古认识。
    OBJECTIVE: This paper presents the current state of the art in the investigation of past malaria by providing an extensive review of previous studies and identifying research possibilities for the future.
    METHODS: All previous research on the detection of malaria in human skeletal material using macroscopic and biomolecular approaches is considered.
    METHODS: The approaches and methods used by scholars and the results they obtained are evaluated and the limitations discussed.
    RESULTS: There is a link between malaria and porous lesions with significantly higher prevalence in malaria-endemic areas, however, they are not pathognomonic or specific for malaria. Malaria can be identified using biomolecular techniques, yet, to date there is no completely satisfactory method that is able to consistently diagnose the disease.
    CONCLUSIONS: Using macroscopic and biomolecular techniques, malaria can be investigated in past populations and the impact of the disease studied. Yet, this is not a straightforward process and the use of multiple lines of evidence is necessary to obtain the best results.
    CONCLUSIONS: The extensive discussion on ways malaria can and cannot be identified in past populations and the suggestions for new approaches provide a steppingstone for future research into this debilitating, global disease.
    CONCLUSIONS: Malaria is a difficult disease to study archaeologically and successful identification depends on many intrinsic and extrinsic factors.
    UNASSIGNED: More large-scale spatial analyses of porous lesions as well as targeting different tissues or molecules for biomolecular identification may improve the archaeological understanding of malaria.
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  • 文章类型: Journal Article
    在整个历史中,寄生虫都影响着人类和动物并与之共同进化。古代寄生虫感染的证据,特别是,居住在考古遗骸从不同的来源约会到不同时期。对考古遗迹中保存的古代寄生虫的研究被称为古寄生虫学,它最初打算解释迁移,进化,和古代寄生虫的扩散模式,和他们的主人一起。最近,古寄生虫学已被用来更好地了解古代人类社会的饮食习惯和生活方式。古病理学越来越被认为是古病理学中的一个跨学科领域,它整合了孢粉学等领域,古植物学,和动物考古学。古寄生虫学还结合了显微镜等技术,免疫测定,PCR,靶向测序,最近,高通量测序或鸟枪宏基因组学,以了解古代寄生虫感染,从而解释迁移和进化模式,以及饮食习惯和生活方式。本综述涵盖了在古寄生虫学领域发展起来的原始理论,以及在前哥伦布文化中发现的一些寄生虫的生物学。Conclusions,以及在古代样本中发现寄生虫期间所做的假设,以及他们的身份如何有助于更好地理解人类历史的一部分,古老的饮食,并讨论了生活方式。
    Parasites have affected and coevolved with humans and animals throughout history. Evidence of ancient parasitic infections, particularly, reside in archeological remains originating from different sources dating to various periods of times. The study of ancient parasites preserved in archaeological remains is known as paleoparasitology, and it initially intended to interpret migration, evolution, and dispersion patterns of ancient parasites, along with their hosts. Recently, paleoparasitology has been used to better understand dietary habits and lifestyles of ancient human societies. Paleoparasitology is increasingly being recognized as an interdisciplinary field within paleopathology that integrates areas such as palynology, archaeobotany, and zooarchaeology. Paleoparasitology also incorporates techniques such as microscopy, immunoassays, PCR, targeted sequencing, and more recently, high-throughput sequencing or shotgun metagenomics to understand ancient parasitic infections and thus interpret migration and evolution patterns, as well as dietary habits and lifestyles. The present review covers the original theories developed in the field of paleoparasitology, as well as the biology of some parasites identified in pre-Columbian cultures. Conclusions, as well as assumptions made during the discovery of the parasites in ancient samples, and how their identification may aid in better understanding part of human history, ancient diet, and lifestyles are discussed.
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  • 文章类型: Journal Article
    The domestication of the horse began about 5500 years ago in the Eurasian steppes. In the following millennia horses spread across the ancient world, and their role in transportation and warfare affected every ancient culture. Ownership of horses became an indicator of wealth and social status. The importance of horses led to a growing interest in their breeding and management. Many phenotypic traits, such as height, behavior, and speed potential, have been proven to be a subject of selection; however, the details of ancient breeding practices remain mostly unknown. From the fourth millennium BP, through the Iron Age, many literature sources thoroughly describe horse training systems, as well as various aspects of husbandry, many of which are still in use today. The striking resemblance of ancient and modern equine practices leaves us wondering how much was accomplished through four thousand years of horse breeding.
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  • 文章类型: Historical Article
    寄生是生命固有的,在所有物种中都能观察到。已经对灭绝的动物进行了研究,以了解它们的外观,他们在哪里以及如何生活,他们吃了什么,以及它们灭绝的原因。古寄生虫学有助于根据对感染这些动物的寄生虫和微生物的研究来澄清这些问题,使用coprolites作为源材料,岩石中的化石,组织,骨头,木乃伊,琥珀色,古代DNA的分析,免疫诊断,和显微镜。
    Parasitism is inherent to life and observed in all species. Extinct animals have been studied to understand what they looked like, where and how they lived, what they fed on, and the reasons they became extinct. Paleoparasitology helps to clarify these questions based on the study of the parasites and microorganisms that infected those animals, using as a source material coprolites, fossils in rock, tissue, bone, mummy, and amber, analyses of ancient DNA, immunodiagnosis, and microscopy.
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  • 文章类型: Historical Article
    迄今为止,在木乃伊软组织中诊断出的古代肿瘤仅限于18例,只有5个恶性肿瘤。古代人群中肿瘤的明显缺乏有时归因于寿命较短和环境中致癌物质较少。然而,这种缺乏也可能是木乃伊尸检稀缺的结果,以及在木乃伊组织中检测肿瘤病变的技术困难。一个例外,和全面系统分析的好处的例子,是那不勒斯(15-16世纪)的10个文艺复兴时期的木乃伊的小样本,其中发现3例癌症。为了增加软组织肿瘤的检测,木乃伊必须接受由熟练的古病理学家进行的系统尸检和组织学检查。对已知的古代软组织肿瘤的回顾证明了木乃伊中恶性和良性软组织肿瘤的组织学状态,以及进一步研究的潜力。将讨论古病理学诊断的局限性,并将对木乃伊遗体进行尸检和组织学分析。
    Ancient neoplasms diagnosed in the soft tissues of mummies are limited to 18 cases so far, with only 5 malignant tumors. The apparent paucity of neoplasms in ancient populations is sometimes attributed to shorter life spans and fewer oncogenic substances in the environment. However, this paucity may also be a result of the scarcity of autopsies of mummies, together with technical difficulties in detecting neoplastic lesions in mummified tissues. An exception, and example of the benefits of thorough systematic analysis, is the small sample of 10 Renaissance mummies from Naples (15th-16th centuries), in which 3 cases of cancer were found. In order to increase detection of soft tissue tumors, it is imperative that mummies undergo systematic autopsies and histological examinations performed by skilled paleopathologists. This review of the known ancient soft tissue neoplasms demonstrates the state of histology of malignant and benign soft tissue neoplasms in mummies, and the potential for further study. The limitations of paleopathological diagnosis will be discussed and an argument will be made for the use of autopsies and histological analysis on mummified human remains.
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  • 文章类型: Journal Article
    古DNA(aDNA)领域最近处于指数增长状态,很大程度上是由下一代测序(NGS)技术的吸收驱动的。这项工作大部分集中在哺乳动物大型动物和古代人类上,对微哺乳动物动物的研究相对较少,尽管这些物种在进化测试中具有潜力,环境和分类学理论。几个因素使微哺乳动物动物区系非常适合aDNA提取和测序。微哺乳动物亚化石组合通常包括适合于种群水平分析的大量个体,and,此外,这些组合经常出现在洞穴中,那里的恒温和庇护环境为DNA保存提供了有利条件。这篇综述着眼于包括在微哺乳动物动物的分子分析中使用aDNA的研究,为了研究使用新的古遗传学技术在小型哺乳动物研究中可以回答的广泛问题。这项研究强调了当前aDNA研究中的偏见,并评估了aDNA作为研究微哺乳动物动物群的工具的未来用途。
    The field of ancient DNA (aDNA) has recently been in a state of exponential growth, largely driven by the uptake of Next Generation Sequencing (NGS) techniques. Much of this work has focused on the mammalian megafauna and ancient humans, with comparatively less studies looking at micromammal fauna, despite the potential of these species in testing evolutionary, environmental and taxonomic theories. Several factors make micromammal fauna ideally suited for aDNA extraction and sequencing. Micromammal subfossil assemblages often include the large number of individuals appropriate for population level analyses, and, furthermore, the assemblages are frequently found in cave sites where the constant temperature and sheltered environment provide favourable conditions for DNA preservation. This review looks at studies that include the use of aDNA in molecular analysis of micromammal fauna, in order to examine the wide array of questions that can be answered in the study of small mammals using new palaeogenetic techniques. This study highlights the bias in current aDNA studies and assesses the future use of aDNA as a tool for the study of micromammal fauna.
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  • 文章类型: Journal Article
    Ancient DNA (aDNA) has the ability to inform the evolutionary history of both extant and extinct taxa; however, the use of aDNA in the study of avian evolution is lacking in comparison to other vertebrates, despite birds being one of the most species-rich vertebrate classes. Here, we review the field of \"avian ancient DNA\" by summarising the past three decades of literature on this topic. Most studies over this time have used avian aDNA to reconstruct phylogenetic relationships and clarify taxonomy based on the sequencing of a few mitochondrial loci, but recent studies are moving toward using a comparative genomics approach to address developmental and functional questions. Applying aDNA analysis with more practical outcomes in mind (such as managing conservation) is another increasingly popular trend among studies that utilise avian aDNA, but the majority of these have yet to influence management policy. We find that while there have been advances in extracting aDNA from a variety of avian substrates including eggshell, feathers, and coprolites, there is a bias in the temporal focus; the majority of the ca. 150 studies reviewed here obtained aDNA from late Holocene (100-1000 yBP) material, with few studies investigating Pleistocene-aged material. In addition, we identify and discuss several other issues within the field that require future attention. With more than one quarter of Holocene bird extinctions occurring in the last several hundred years, it is more important than ever to understand the mechanisms driving the evolution and extinction of bird species through the use of aDNA.
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