203 research outputs found

    Long non-coding RNA SENCR is a positive regulator of ETV2

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    Department of Biological SciencesAlthough long non-coding RNAs (lncRNAs) have emerged as novel regulator of cell fate and gene expression, the regulation of vascular specific transcription factor by lncRNA in generation of induced endothelial cells (iEndo) has not been studied yet. In this study, ETS variant 2 (ETV2) converts human fibroblasts into iEndo, and smooth muscle and endothelial cell enriched migration/differentiationassociated long non-coding RNA (SENCR) was identified as a regulator of ETV2. iEndo showed similar morphology, endothelial cell markers, and tubular structure formation compared to human umbilical vein endothelial cell (HUVEC). Furthermore, over-expression of SENCR increased ETV2 gene and protein expression by enhancing ETV2 promoter activity through recruitment of PSPC1. This is the first study demonstrates the role of SENCR contributed to ETV2 activation in generation of iEndo.ope

    A recentering approach for interpreting interaction effects from logit, probit, and other nonlinear models

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    Research SummaryStrategic management has seen numerous studies analyzing interaction terms in nonlinear models since Hoetker’s (Strat Mgmt J., 2007, 28(4), 331- 343) best- practice recommendations and Zelner’s (Strat Mgmt J., 2009, 30(12), 1335- 1348) simulation- based approach. We suggest an alternative recentering approach to assess the statistical and economic importance of interaction terms in nonlinear models. Our approach does not rely on making assumptions about the values of the control variables; it takes the existing model and data as is and requires fewer computational steps. The recentering approach not only provides a consistent answer about statistical meaningfulness of the interaction term at a given point of interest, but also helps to assess the effect size using the template that we offer in this study. We demonstrate how to implement our approach and discuss the implications for strategy researchers.Managerial SummaryIn industry settings, the relationship between multiple corporate strategy- related inputs and corporate performance is often nonlinear in nature. Furthermore, such relationships tend to vary for different types of firms represented within the broader population of firms in a given industry. It is thus imperative for managers to know how to take nonlinear relationships between related business factors into account when they make strategic decisions. We suggest a simple and easily implementable way of assessing and interpreting interactions in a nonlinear setting, which we term a recentering approach. We demonstrate how to apply our approach to a strategic management setting.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/163421/3/smj3202.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/163421/2/smj3202-sup-0001-Supinfo.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/163421/1/smj3202_am.pd

    Comparative analysis of organelle genomes provides conflicting evidence between morphological similarity and phylogenetic relationship in diatoms

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    Diatoms (Bacillariophyta) are abundant phytoplankton groups in marine environments, which contribute approximately 20% of global carbon fixation through photosynthesis. Moreover, diatoms exhibit the highest species diversity (approximately 18,000 diatom species) among marine photosynthetic eukaryotes, which were identified by morphological characteristics. Molecular phylogenetic analyses could shed new insights into the evolutionary relationships of diverse diatom species. Nevertheless, a comprehensive understanding of the phylogenetic relationships of diatom species still remains unclear because the available molecular data are insufficient compared with their high species diversity. Furthermore, several novel diatom species were reported from field samples with no molecular evidence. In particular, the phylogenies of diatom species constructed using organelle genomes revealed that several diatom genera are paraphyletic with high supporting values. We constructed high-resolution phylogenetic trees of diatom species using organelle genomes (plastids and mitochondria) and compared the morphologies in several paraphyletic diatom genera. Especially, the clades Nitzschia and Thalassiosira include several different diatom genera with high phylogenetic supports. Our study demonstrated that some morphological characteristics (e.g., genus characters) of several diatom genera could not represent current genus boundaries. Based on the results, we highlight the necessity for taxonomic reinvestigation. To reestablish this in diatoms, it will be essential to incorporate more genome data from a broader range of taxon samples, along with a comparison of morphological characteristics

    Itch and Janus Kinase Inhibitors

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    Itch is a common skin symptom, with complex aetiology and pathogenesis. It is mediated by 2 pathways, the histaminergic and non-histaminergic pathways. Chronic itch is understood to be processed by the latter and is difficult to treat with traditional pruritus therapies. The Janus kinase and signal transducer and activator of transcription pathway is a signalling mechanism that regulates gene expression through various cytokines. Janus kinase inhibitors, which have been tested and used for several autoimmune diseases, have also been shown to be effective for itch through clinical trials and case reports. Janus kinase inhibitors could be a good choice for pruritus in atopic dermatitis, psoriasis, and other diseases, such as prurigo nodularis and lichen planus, with rapid itch relief compared with conventional treatments. The most common adverse effects reported include nasopharyngitis, acne, and elevated blood creatine phosphokinase levels. Janus kinase inhibitors are currently prescribed with warnings about a potential increase in malignancies and cardiovascular diseases and usage in people of older ages. This review aims to provide knowledge about itch and the Janus kinase and signal transducer and activator of transcription pathway and to analyse the current evidence for itch relief by Janus kinase inhibitors

    The Power of Sound (TPoS): Audio Reactive Video Generation with Stable Diffusion

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    In recent years, video generation has become a prominent generative tool and has drawn significant attention. However, there is little consideration in audio-to-video generation, though audio contains unique qualities like temporal semantics and magnitude. Hence, we propose The Power of Sound (TPoS) model to incorporate audio input that includes both changeable temporal semantics and magnitude. To generate video frames, TPoS utilizes a latent stable diffusion model with textual semantic information, which is then guided by the sequential audio embedding from our pretrained Audio Encoder. As a result, this method produces audio reactive video contents. We demonstrate the effectiveness of TPoS across various tasks and compare its results with current state-of-the-art techniques in the field of audio-to-video generation. More examples are available at https://ku-vai.github.io/TPoS/Comment: ICCV202

    Allergic Sensitization Pattern in the Korean Dermatologic Patients

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    BACKGROUND: Avoiding causative allergens is important for controlling the clinical course of allergic diseases. Allergen sensitization is influenced by many factors including the environment and lifestyle. The socioeconomic development, climate, and lifestyle changes have increased the prevalence of allergic diseases worldwide. However, there is little information about changes in the trend of the common allergens over time. OBJECTIVE: This study was aimed at identifying the trends of the common allergens in Korea over a 10-year period based on the results of the multiple allergosorbent test chemiluminescent assay (MAST-CLA). METHODS: We retrospectively reviewed the medical records of 5,760 patients aged ≥18 years who visited the Dermatology Department at a tertiary hospital over a period of 10 years. The serum total immunoglobulin (Ig) E and specific IgE levels to 41 allergens were determined using MAST-CLA, along with the clinical diagnosis, duration of illness, white blood cell count and eosinophil percentage. RESULTS: CONCLUSION: The common allergens have changed over time. Based on the findings of this study, physicians and patients should consider changing their strategies for disease prevention and management
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