138 results match your criteria: "the University of St. Andrews[Affiliation]"

Article Synopsis
  • Paclitaxel (PTX) chemoresistance is a significant issue in cervical cancer treatment, making it crucial to find drug combinations with minimal side effects to enhance its effectiveness.
  • Ginsenoside Rg5 (GRg5) shows promise as a chemosensitizer, potentially reversing multidrug resistance in PTX-resistant HeLa cells.
  • The study found that GRg5 not only improved the cytotoxic effects of PTX but also promoted apoptosis through the activation of key proteins and genes, suggesting it could be an effective combination therapy to enhance paclitaxel treatment in cervical cancer patients.
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Relationships among laurasiatherian clades represent one of the most highly disputed topics in mammalian phylogeny. In this study, we attempt to disentangle laurasiatherian interordinal relationships using two independent genome-level approaches: (1) quantifying retrotransposon presence/absence patterns, and (2) comparisons of exon datasets at the levels of nucleotides and amino acids. The two approaches revealed contradictory phylogenetic signals, possibly due to a high level of ancestral incomplete lineage sorting.

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What factors affect imitation performance? Varying theories of imitation stress the role of experience, but few studies have explicitly tested its role in imitative learning in non-human primates. We tested several predictions regarding the role of experience, conspecific presence, and action compatibility using a stimulus-response compatibility protocol. Nineteen baboons separated into two experimental groups learned to respond by targeting on a touch screen the same stimulus as their neighbor (compatible) or the opposite stimulus (incompatible).

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The era of reference genomes in conservation genomics.

Trends Ecol Evol

March 2022

LOEWE Centre for Translational Biodiversity Genomics (LOEWE-TBG), Georg-Voigt-Str. 14-16, 60325 Frankfurt/Main, Germany; Senckenberg Biodiversity and Climate Research Centre, Georg-Voigt-Str. 14-16, 60325 Frankfurt/Main, Germany; Institute for Insect Biotechnology, Justus-Liebig University Gießen, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany. Electronic address:

Progress in genome sequencing now enables the large-scale generation of reference genomes. Various international initiatives aim to generate reference genomes representing global biodiversity. These genomes provide unique insights into genomic diversity and architecture, thereby enabling comprehensive analyses of population and functional genomics, and are expected to revolutionize conservation genomics.

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Remote Monitoring Systems for Patients With Chronic Diseases in Primary Health Care: Systematic Review.

JMIR Mhealth Uhealth

December 2021

Unidade de Investigação e Desenvolvimento em Engenharia Mecanica e Industrial, Department of Mechanical and Industrial Engineering, NOVA School of Science and Technology, Setúbal, Portugal.

Background: The digital age, with digital sensors, the Internet of Things (IoT), and big data tools, has opened new opportunities for improving the delivery of health care services, with remote monitoring systems playing a crucial role and improving access to patients. The versatility of these systems has been demonstrated during the current COVID-19 pandemic. Health remote monitoring systems (HRMS) present various advantages such as the reduction in patient load at hospitals and health centers.

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Comprising more than 1,400 species, bats possess adaptations unique among mammals including powered flight, unexpected longevity, and extraordinary immunity. Some of the molecular mechanisms underlying these unique adaptations includes DNA repair, metabolism and immunity. However, analyses have been limited to a few divergent lineages, reducing the scope of inferences on gene family evolution across the Order Chiroptera.

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Author Correction: DNA methylation predicts age and provides insight into exceptional longevity of bats.

Nat Commun

May 2021

Departamento de Zoología, Instituto de Biología, Universidad Nacional Autónoma de México, 04510, Ciudad de México, Mexico.

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Exceptionally long-lived species, including many bats, rarely show overt signs of aging, making it difficult to determine why species differ in lifespan. Here, we use DNA methylation (DNAm) profiles from 712 known-age bats, representing 26 species, to identify epigenetic changes associated with age and longevity. We demonstrate that DNAm accurately predicts chronological age.

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Background And Aims: Genetically controlled self-incompatibility (SI) mechanisms constrain selfing and thus have contributed to the evolutionary diversity of flowering plants. In homomorphic gametophytic SI (GSI) and homomorphic sporophytic SI (SSI), genetic control is usually by the single multi-allelic locus S. Both GSI and SSI prevent self pollen tubes reaching the ovary and so are pre-zygotic in action.

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Saving the poor and vulnerable.

Science

October 2020

Sir Ian L. Boyd is a professor of biology at the University of St Andrews, Fife, Scotland, UK, and chairman of the UK Research Integrity Office. He is the former chief scientific adviser to the United Kingdom Government on food and environment.

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Bisection tasks that require individuals to identify the midpoint of a line are often used to assess the presence of biases to spatial attention in both healthy and patient populations. These tasks have helped to uncover a phenomenon called pseudoneglect, a bias towards the left-side of space in healthy individuals. First identified in the tactile domain, pseudoneglect has been subsequently demonstrated in other sensory modalities such as vision.

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Background: Accumulating evidence suggests risk of cognitive impairment is declining in high-income countries. Much of this research uses longitudinal surveys in which learning over repeated tests may bias results. We analyze trends in cognitive impairment in the United States, accounting for prior test experience and selective mortality.

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To infect their hosts and cause disease, plant viruses must replicate within cells and move throughout the plant both locally and systemically. RNA virus replication occurs on the surface of various cellular membranes, whose shape and composition become extensively modified in the process. Membrane contact sites (MCS) can mediate non-vesicular lipid-shuttling between different membranes and viruses co-opt components of these structures to make their membrane environment suitable for replication.

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Subcellular localizations of RNAs can be imaged in vivo with genetically encoded reporters consisting of a sequence-specific RNA-binding protein (RBP) fused to a fluorescent protein. Several such reporter systems have been described based on RBPs that recognize RNA stem-loops. Here we describe RNA tagging for imaging with an inactive mutant of the bacterial endonuclease Csy4, which has a significantly higher affinity for its cognate stem-loop than alternative systems.

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Although the multiplicative and growth-arrested states play key roles in Leishmania development, the regulators of these transitions are largely unknown. In an attempt to gain a better understanding of these processes, we characterised one member of a family of protein kinases with dual specificity, LinDYRK1, which acts as a stasis regulator in other organisms. LinDYRK1 overexpressing parasites displayed a decrease in proliferation and in cell cycle re-entry of arrested cells.

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Novel major gene resistance against Potato virus Y in diploid populations of Solanum tuberosum Groups Phureja and Tuberosum was biologically and genetically characterised. Named Ry(o), it mapped to chromosome 9. A new source of genetic resistance derived from Solanum tuberosum Group Phureja against Potato virus Y (PVY) was identified and genetically characterised in three diploid biparental potato populations.

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'A German Whore and no Money at that': Insanity and the Moral and Political Economies of German South West Africa.

Cult Med Psychiatry

September 2020

Department of Social Anthropology, The University of St Andrews, 71 North Street, KY16 9AL, St Andrews, Fife, UK.

While the links between colonial psychiatry and racism figure prominently in histories of the diagnosis, treatment and institutionalisation of the mentally ill in Africa, there is an absence of patient-centred accounts, in the analysis of the efforts of the colonial-era subjects themselves to be pro-active not merely as the mentally ill, by clinical or court definition, but as persons embedded in social relationships with their kin and significant others. Moreover, despite an emerging scholarship, little is known of the experience of European settlers. In this respect there is a need for a more balanced representation, one that shows the ambivalence of colonial psychiatry and its reach into the lives of colonial subjects, Africans and Europeans alike.

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Objective: To assess the effectiveness of a Choosing Wisely Canada (CWC) initiative to improve thyroid-stimulating hormone (TSH) test ordering for patients with no identified indication for this test.

Design: Retrospective parallel cohort study using routinely collected electronic medical record (EMR) data. The CWC initiative included supporting primary care leads in each participating family health team, providing education on better test ordering, and allowing adaptation appropriate to each local context.

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Social media have become a rich source of data, particularly in health research. Yet, the use of such data raises significant ethical questions about the need for the informed consent of those being studied. Consent mechanisms, if even obtained, are typically broad and inflexible, or place a significant burden on the participant.

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Scientists and politics?

Science

October 2019

Ian L. Boyd is a professor of biology at the University of St Andrews, Fife, Scotland, UK, and chairman of the UK Research Integrity Office. He is the former chief scientific adviser in the United Kingdom on food and environment.

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