Publications by authors named "Ree D"

Geodiversity and geosystem services are confronting global threats. However, the majority of conservation strategies tend to overlook the geological component within ecosystems. The existing literature centres on biodiversity, ecosystem services and their economic valuation.

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Because the functions of the subsurface are hidden from view, its important role in society is often ignored or taken for granted. The subsurface is, however, an essential part of the global ecosystem with important contributions to human well-being. Geodiversity is an important characteristic in this respect.

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Rapid environmental change, natural resource overconsumption and increasing concerns about ecological sustainability have led to the development of 'Essential Variables' (EVs). EVs are harmonized data products to inform policy and to enable effective management of natural resources by monitoring global changes. Recent years have seen the instigation of new EVs beyond those established for climate, oceans and biodiversity (ECVs, EOVs and EBVs), including Essential Geodiversity Variables (EGVs).

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Maturation of microRNAs (miRNAs) begins by the "Microprocessor" complex, containing the Drosha endonuclease and its partner protein, "DiGeorge Syndrome Critical Region 8" (DGCR8). Although the main function of the two proteins is to coordinate the first step of precursor miRNAs formation, several studies revealed their miRNA-independent functions in other RNA-related pathways (e.g.

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Article Synopsis
  • Cardiac cell lines (H9C2, AC16, HL-1) were systematically compared to primary cardiomyocytes and mature cardiac tissues to assess their characteristics and limitations in cardiovascular research.
  • Findings revealed that cardiac cell lines exhibited significantly lower expression of cardiac markers and less pronounced cardiac phenotypes compared to primary and mature cells, even after differentiation.
  • The study concludes that the low resemblance of cell lines to mature cardiac tissue limits their usefulness in research, highlighting the need to consider their translational value when selecting models for cardiomyocyte studies.
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DiGeorge Syndrome (DGS) Critical Region 8 (DGCR8) is a primary candidate gene in they DGS. The DGCR8 microprocessor complex subunit is an essential cofactor in the canonical miRNA biogenesis which is involved in diverse cellular functions such as cell fate decisions, apoptosis and different signaling pathways. However, the role of DGCR8 in these processes or development of DGS is not fully understood.

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Induced pluripotent stem cell (iPSC)-derived neural progenitor cells (NPCs) are promising tools to model complex neurological or psychiatric diseases, including schizophrenia. Multiple studies have compared patient-derived and healthy control NPCs derived from iPSCs in order to investigate cellular phenotypes of this disease, although the establishment, stabilization, and directed differentiation of iPSC lines are rather expensive and time-demanding. However, interrupted reprogramming by omitting the stabilization of iPSCs may allow for the generation of a plastic stage of the cells and thus provide a shortcut to derive NPSCs directly from tissue samples.

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Here we describe the generation of induced pluripotent stem cell (iPSC) lines from peripheral blood samples of identical twin sisters with type 2 diabetes mellitus (DM2). Two clonal lines from each patient (HU-DM2-A-1, HU-DM2-A-2 and HU-DM2-B-1, HU-DM2-B-2) were established via Sendai viral reprograming of peripheral blood mononuclear cells, and characterized to confirm pluripotency and genetic integrity. The established iPSC lines can help to investigate DM2 related cellular phenotypes and provide a model system for drug testing.

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Over the past decades, significant efforts have been invested in the development of push-in technology for site characterization and monitoring for geotechnical and environmental purposes and have especially been undertaken in the Netherlands and Germany. These technologies provide the opportunity for faster, cheaper, and collection of more reliable subsurface data. However, to maximize the technology both from a development and implementation point of view, it is necessary to have an overview of the areas suitable for the application of this type of technology.

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The Haptophyta is a common algal group in many marine environments, but only a few species have been observed in freshwaters, with DNA sequences available from just a single species, Crysochromulina parva Lackey, 1939. Here we investigate the haptophyte diversity in a high mountain lake, Lake Finsevatn, Norway, targeting the variable V4 region of the 18S rDNA gene with PCR and 454 pyrosequencing. In addition, the freshwater diversity of Pavlovophyceae was investigated by lineage-specific PCR-primers and clone library sequencing from another Norwegian lake, Lake Svaersvann.

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Protist parasites are ecologically important, as they can have great impact on host population dynamics and functioning of entire ecosystems. Nevertheless, little is known about their prevalence in aquatic habitats. Here, we investigate the diversity and distributional patterns of the protist parasites Perkinsus and Parvilucifera (Perkinsea).

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Policymakers and the public have a clear interest in encouraging teens to delay becoming sexually active or, if they are sexually active, to use birth control. Many researchers have argued that reducing substance use among teens will accomplish both of these goals, yet work in this area has failed to control for unobservables that are potentially correlated with substance use and sexual behavior. Using a variety of estimation techniques and data from National Longitudinal Study of Adolescent Health, we estimate the effects of marijuana and alcohol use on two outcomes: the probability of being sexually active, and the probability of having sex without contraception.

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The molecular mechanism whereby tumor necrosis factor-alpha (TNF-alpha) induces insulin resistance in obesity is not well understood. Previously, we have shown that inhibition of TNF-alpha improved hepatic insulin sensitivity in obese Zucker rats without altering the tyrosine phosphorylation of liver insulin receptors (IRs), which indicates that the TNF-alpha and insulin-signaling cascades interact distally to the IR. To assess the effects of TNF-alpha on signaling molecules downstream from the IR, we analyzed the tyrosine phosphorylation patterns of liver homogenate proteins from TNF-alpha-neutralized fa/fa rats and showed that focal adhesion kinase (FAK) was consistently hyperphosphorylated (4.

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Tumor necrosis factor-alpha (TNF-alpha) has been shown to induce insulin resistance in cultured cells as well as in animal models. The aim of this study was to map the in vivo mechanism whereby TNF-alpha contributes to the pathogenesis of impaired insulin signaling, using obese and lean Zucker rats in which TNF-alpha activity was inhibited through adenovirus-mediated gene transfer. We employed a replication-incompetent adenovirus-5 (Ad5) vector to endogenously express a TNF inhibitor (TNFi) gene, which encodes a chimeric protein consisting of the extracellular domain of the human 55-kDa TNF receptor joined to a mouse IgG heavy chain.

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