Publications by authors named "Coughlan J"

Migration in animals and associated adaptations to contrasting environments are underpinned by complex genetic architecture. Here, we explore the genomic basis of facultative anadromy in brown trout (Salmo trutta), wherein some individuals migrate to sea while others remain resident in natal rivers, to better understand how alternative migratory tactics (AMTs) are maintained evolutionarily. To identify genomic variants associated with AMTs, we sequenced whole genomes for 194 individual trout from five anadromous-resident population pairs, situated above and below waterfalls, in five different Irish rivers.

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  • Patients who need oral anticoagulation and undergo coronary intervention can use a special stent (COBRA PzF) that may lower the need for long-term dual antiplatelet therapy (DAPT) while maintaining safety against blood clots.
  • In a study, 996 patients were randomized to receive either the COBRA PzF stent with a short 14-day DAPT or a regular stent with longer DAPT durations of 3 to 6 months.
  • Results showed that the COBRA stent did not significantly reduce bleeding compared to the control group and was not proven to maintain equivalent safety for thromboembolic events, indicating further investigation is needed.
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  • The study examined the 10-year outcomes of patients who underwent percutaneous coronary intervention (PCI) with drug-eluting stents (DES), focusing on different clinical presentations: acute coronary syndrome (ACS) and chronic coronary syndrome (CCS).
  • Data from five clinical trials involving 9,700 patients were analyzed, revealing that ACS patients had higher risks of all-cause death and non-target vessel revascularization within the first year, but risks equalized afterward.
  • ACS patients also faced increased risks of myocardial infarction and definite stent thrombosis compared to CCS patients, highlighting the need for further research on these outcomes with current treatment strategies.
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We have devised a novel "Point-and-Tap" interface that enables people who are blind or visually impaired (BVI) to easily acquire multiple levels of information about tactile graphics and 3D models. The interface uses an iPhone's depth and color cameras to track the user's hands while they interact with a model. When the user points to a feature of interest on the model with their index finger, the system reads aloud basic information about that feature.

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Background: The ISAR-REACT 5 trial compared the efficacy and safety of ticagrelor and prasugrel in patients with ACS managed invasively. The present study sought to investigate the impact of ticagrelor and prasugrel on the incidence and pattern of urgent revascularization in acute coronary syndromes (ACS) patients undergoing percutaneous coronary intervention (PCI).

Methods And Results: This post-hoc analysis of the ISAR-REACT 5 trial included all ACS patients who underwent PCI.

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A group co-design was held in March 2021 with six blind and low-vision individuals (BLIs) from the United States. Participants were asked to discuss problems related to travel during the COVID-19 pandemic and make recommendations for possible solutions. Two probes (prototypes) of a non-visual neighborhood travel map and a non-visual COVID-19 choropleth map (a map using colors or sounds over each state to represent different values) of COVID-19 state data were shown to participants for inspiration.

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  • - The You Described, We Archived (YuWA) dataset is a project by San Francisco State University and The Smith-Kettlewell Eye Research Institute, gathering audio description data globally from 2013-2022 through the YouDescribe tool, aimed at making YouTube videos accessible for blind and visually impaired viewers.
  • - YouDescribe allows users to request and create audio descriptions for YouTube videos, supported by a community of over 3,000 volunteers who script and record descriptions, resulting in over 5,500 audio described videos.
  • - The YuWA dataset, which includes audio descriptions along with metadata about describers and viewers, can be used for research in areas like AI, machine learning, and sociolinguistics, enhancing
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Endosperm in angiosperms and placenta in eutherians are convergent innovations for efficient embryonic nutrient transfer. Despite advantages, this reproductive strategy incurs metabolic costs that maternal parents disproportionately shoulder, leading to potential inter-parental conflict over optimal offspring investment. Genomic imprinting-parent-of-origin-biased gene expression-is fundamental for endosperm and placenta development and has convergently evolved in angiosperms and mammals, in part, to resolve parental conflict.

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  • The study illustrates that selection against hybrids is influenced not just by genetic incompatibilities, but also by how poorly hybrid traits fit into available ecological niches.
  • A review of current research methods and QTL-mapping studies indicates that traits differing between parent species are generally controlled by multiple genes, emphasizing the complex nature of hybrid traits.
  • The findings suggest that as parent species diverge phenotypically, hybrid traits become increasingly extreme, which may lead to ecological incompatibility, offering insights into the mechanisms of species formation.
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Telomeres are nucleoprotein complexes with a crucial role of protecting chromosome ends. It consists of simple repeat sequences and dedicated telomere-binding proteins. Because of its vital functions, components of the telomere, for example its sequence, should be under strong evolutionary constraint.

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Artificial structures have become widespread features of coastal marine environments, and will likely proliferate further over the coming decades. These constitute new hard substrata in the marine environment which provide a fundamentally different habitat than natural shores. Eco-engineering solutions aim to ameliorate these differences by combining ecological knowledge and engineering criteria in the construction and modification of artificial substrata.

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  • Intrinsic postzygotic isolation results in reduced viability or fertility of hybrids due to genetic incompatibilities between different species' genomes.
  • The two main mechanisms traditionally thought to cause this isolation are Dobzhansky-Muller interactions between genes and chromosomal rearrangements affecting meiosis.
  • Recent studies indicate that intrinsic postzygotic isolation is more complex than previously understood, involving factors like overall DNA divergence and epigenetic changes, and this review examines these mechanisms across various species while addressing gaps in current knowledge.
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Although intrinsic postzygotic reproductive barriers can play a fundamental role in speciation, their underlying evolutionary causes are widely debated. One hypothesis is that incompatibilities result from genomic conflicts. Here, I synthesize the evidence that conflict generates incompatibilities in plants, thus playing a creative role in plant biodiversity.

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Background And Aims: The European Union Medical Device Regulation 2017/745 challenges key stakeholders to follow transparent and rigorous approaches to the clinical evaluation of medical devices. The purpose of this study is a systematic evaluation of published clinical evidence underlying selected high-risk cardiovascular medical devices before and after market access in the European Union (CE-marking) between 2000 and 2021.

Methods: Pre-specified strategies were applied to identify published studies of prospective design evaluating 71 high-risk cardiovascular devices in seven different classes (bioresorbable coronary scaffolds, left atrial appendage occlusion devices, transcatheter aortic valve implantation systems, transcatheter mitral valve repair/replacement systems, surgical aortic and mitral heart valves, leadless pacemakers, subcutaneous implantable cardioverter-defibrillator).

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Introduction: Several published studies have reported an association between the Glu298Asp polymorphism (rs1799983), residing in the endothelial nitric oxide synthase (NOS3) gene, and lower levels of circulating nitric oxide, as well as an increased risk of coronary artery disease (CAD). However, association status of this genetic variant with acute coronary syndrome (ACS) or premature CAD (PCAD) is still unclear. Against this background, we conducted a systematic review and study level meta-analysis to assess the association of the NOS3 Glu298Asp polymorphism with ACS or PCAD.

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