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  1. Artikel ; Online: High-depth sequencing characterization of viral dynamics across tissues in fatal COVID-19 reveals compartmentalized infection

    Erica Normandin / Melissa Rudy / Nikolaos Barkas / Stephen F. Schaffner / Zoe Levine / Robert F. Padera / Mehrtash Babadi / Shibani S. Mukerji / Daniel J. Park / Bronwyn L. MacInnis / Katherine J. Siddle / Pardis C. Sabeti / Isaac H. Solomon

    Nature Communications, Vol 14, Iss 1, Pp 1-

    2023  Band 12

    Abstract: Here, by high-resolution SARS-CoV-2 sequencing, genomic and transcriptomic analyses from tissue samples, Normandin et al. investigate viral dynamics in fatal cases of COVID-19, revealing persistent infection in distinct anatomical sites, including the ... ...

    Abstract Here, by high-resolution SARS-CoV-2 sequencing, genomic and transcriptomic analyses from tissue samples, Normandin et al. investigate viral dynamics in fatal cases of COVID-19, revealing persistent infection in distinct anatomical sites, including the heart and testis.
    Schlagwörter Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2023-02-01T00:00:00Z
    Verlag Nature Portfolio
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Single cell transcriptomics of primate sensory neurons identifies cell types associated with chronic pain

    Jussi Kupari / Dmitry Usoskin / Marc Parisien / Daohua Lou / Yizhou Hu / Michael Fatt / Peter Lönnerberg / Mats Spångberg / Bengt Eriksson / Nikolaos Barkas / Peter V. Kharchenko / Karin Loré / Samar Khoury / Luda Diatchenko / Patrik Ernfors

    Nature Communications, Vol 12, Iss 1, Pp 1-

    2021  Band 15

    Abstract: The contribution of distinct types of dorsal root ganglion neurons to chronic pain is unclear. Here, the authors molecularly profile non-human primate sensory neurons and show that genome-wide associations converge on two neuronal types with different ... ...

    Abstract The contribution of distinct types of dorsal root ganglion neurons to chronic pain is unclear. Here, the authors molecularly profile non-human primate sensory neurons and show that genome-wide associations converge on two neuronal types with different genetic susceptibilities for chronic pain.
    Schlagwörter Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2021-03-01T00:00:00Z
    Verlag Nature Portfolio
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  3. Artikel ; Online: Perivascular niche cells sense thrombocytopenia and activate hematopoietic stem cells in an IL-1 dependent manner

    Tiago C. Luis / Nikolaos Barkas / Joana Carrelha / Alice Giustacchini / Stefania Mazzi / Ruggiero Norfo / Bishan Wu / Affaf Aliouat / Jose A. Guerrero / Alba Rodriguez-Meira / Tiphaine Bouriez-Jones / Iain C. Macaulay / Maria Jasztal / Guangheng Zhu / Heyu Ni / Matthew J. Robson / Randy D. Blakely / Adam J. Mead / Claus Nerlov /
    Cedric Ghevaert / Sten Eirik W. Jacobsen

    Nature Communications, Vol 14, Iss 1, Pp 1-

    2023  Band 18

    Abstract: Abstract Hematopoietic stem cells (HSCs) residing in specialized niches in the bone marrow are responsible for the balanced output of multiple short-lived blood cell lineages in steady-state and in response to different challenges. However, feedback ... ...

    Abstract Abstract Hematopoietic stem cells (HSCs) residing in specialized niches in the bone marrow are responsible for the balanced output of multiple short-lived blood cell lineages in steady-state and in response to different challenges. However, feedback mechanisms by which HSCs, through their niches, sense acute losses of specific blood cell lineages remain to be established. While all HSCs replenish platelets, previous studies have shown that a large fraction of HSCs are molecularly primed for the megakaryocyte-platelet lineage and are rapidly recruited into proliferation upon platelet depletion. Platelets normally turnover in an activation-dependent manner, herein mimicked by antibodies inducing platelet activation and depletion. Antibody-mediated platelet activation upregulates expression of Interleukin-1 (IL-1) in platelets, and in bone marrow extracellular fluid in vivo. Genetic experiments demonstrate that rather than IL-1 directly activating HSCs, activation of bone marrow Lepr+ perivascular niche cells expressing IL-1 receptor is critical for the optimal activation of quiescent HSCs upon platelet activation and depletion. These findings identify a feedback mechanism by which activation-induced depletion of a mature blood cell lineage leads to a niche-dependent activation of HSCs to reinstate its homeostasis.
    Schlagwörter Science ; Q
    Thema/Rubrik (Code) 570
    Sprache Englisch
    Erscheinungsdatum 2023-09-01T00:00:00Z
    Verlag Nature Portfolio
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Artikel ; Online: Imprinted Gene Expression and Function of the Dopa Decarboxylase Gene in the Developing Heart

    Adam R. Prickett / Bertille Montibus / Nikolaos Barkas / Samuele M. Amante / Maurício M. Franco / Michael Cowley / William Puszyk / Matthew F. Shannon / Melita D. Irving / Marta Madon-Simon / Andrew Ward / Reiner Schulz / H. Scott Baldwin / Rebecca J. Oakey

    Frontiers in Cell and Developmental Biology, Vol

    2021  Band 9

    Abstract: Dopa decarboxylase (DDC) synthesizes serotonin in the developing mouse heart where it is encoded by Ddc_exon1a, a tissue-specific paternally expressed imprinted gene. Ddc_exon1a shares an imprinting control region (ICR) with the imprinted, maternally ... ...

    Abstract Dopa decarboxylase (DDC) synthesizes serotonin in the developing mouse heart where it is encoded by Ddc_exon1a, a tissue-specific paternally expressed imprinted gene. Ddc_exon1a shares an imprinting control region (ICR) with the imprinted, maternally expressed (outside of the central nervous system) Grb10 gene on mouse chromosome 11, but little else is known about the tissue-specific imprinted expression of Ddc_exon1a. Fluorescent immunostaining localizes DDC to the developing myocardium in the pre-natal mouse heart, in a region susceptible to abnormal development and implicated in congenital heart defects in human. Ddc_exon1a and Grb10 are not co-expressed in heart nor in brain where Grb10 is also paternally expressed, despite sharing an ICR, indicating they are mechanistically linked by their shared ICR but not by Grb10 gene expression. Evidence from a Ddc_exon1a gene knockout mouse model suggests that it mediates the growth of the developing myocardium and a thinning of the myocardium is observed in a small number of mutant mice examined, with changes in gene expression detected by microarray analysis. Comparative studies in the human developing heart reveal a paternal expression bias with polymorphic imprinting patterns between individual human hearts at DDC_EXON1a, a finding consistent with other imprinted genes in human.
    Schlagwörter dopa decarboxylase ; knock-out ; imprinting ; heart ; mouse ; human ; Biology (General) ; QH301-705.5
    Thema/Rubrik (Code) 572
    Sprache Englisch
    Erscheinungsdatum 2021-06-01T00:00:00Z
    Verlag Frontiers Media S.A.
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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