10 research outputs found

    A Novel Likely Pathogenic Variant in the BLOC1S5 Gene Associated with Hermansky-Pudlak Syndrome Type 11 and an Overview of Human BLOC-1 Deficiencies

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    Hermansky-Pudlak syndrome (HPS) is a heterogeneous disorder combining oculocutaneous albinism (OCA) and a platelet function disorder of varying severity as its most prominent features. The genes associated with HPS encode for different BLOC- (biogenesis of lysosome-related organelles complex) complexes and for the AP-3 (adaptor protein-3) complex, respectively. These proteins are involved in maturation, trafficking, and the function of lysosome-related organelles (LROs) such as melanosomes and platelet δ-granules. Some patients with different types of HPS can develop additional complications and symptoms like pulmonary fibrosis, granulomatous colitis, and immunodeficiency. A new type of HPS has recently been identified associated with genetic alterations in the BLOC1S5 gene, which encodes the subunit Muted of the BLOC-1 complex. Our aim was to unravel the genetic defect in two siblings with a suspected HPS diagnosis (because of OCA and bleeding symptoms) using next generation sequencing (NGS). Platelet functional analysis revealed reduced platelet aggregation after stimulation with ADP and a severe secretion defect in platelet δ-granules. NGS identified a novel homozygous essential splice site variant in the BLOC1S5 gene present in both affected siblings who are descendants of a consanguine marriage. The patients exhibited no additional symptoms. Our study confirms that pathogenic variants of BLOC1S5 cause the recently described HPS type 11

    Changes in the global hospitalisation burden of respiratory syncytial virus in young children during the COVID-19 pandemic: a systematic analysis

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    Background The coronavirus disease 2019 (COVID-19) pandemic was reported to have impacted RSV epidemiology and could have important implications for RSV prevention and control strategies. We aimed to understand the RSV-associated acute lower respiratory infection (ALRI) hospitalisation burden in children younger than five years during the COVID-19 pandemic period and the possible changes in RSV epidemiology from a global perspective.Methods We conducted a systematic literature search for studies published between January 1, 2020 and June 30, 2022, from MEDLINE (Ovid), Embase (Ovid), Global Health (Ovid), Web of Science, WHO COVID-19 database, CINAHL, LILACS, OpenGrey, CNKI, WanFang and ChongqingVIP. We included unpublished RSV epidemiology data shared by international collaborators. Eligible studies reported data for RSV-associated ALRI hospital admission rates or at least one of the following severity measures: the proportion of RSV cases that needed supplemental oxygen, mechanical ventilation or intensive care unit admission, and in-hospital case fatality ratio. A generalised linear mixed-effects model was used for data synthesis to understand the changes in the incidence, age distribution and severity of RSV-associated ALRI hospitalisations in children under five years during the COVID-19 pandemic, compared to the year 2019. Findings We included 61 studies, 14 studies from published literature and 47 unpublished datasets. Most studies (51/61) were from the high-income region, followed by the upper-middle-income region (9/61); only one study was from the lower-middle-income region, and no studies were from the low-income region. Compared to 2019, all income regions saw substantial decreases in RSV-associated ALRI hospitalisation rate across all age groups in 2020; the number of RSV-associated ALRI hospitalisations in children aged 0–&lt;60 months decreased by approximately 80% (325,000 to 66,000), 14% (581,000 to 501,000) and 42% (1,378,000 to 795,000) for high-income, upper-middle-income and lower-middle-income countries, respectively. RSV hospitalisation rate started to rise in 2021, and by March 2022, the annualised rate returned to a level comparable to 2019 (6·0/1000, 95% uncertainty interval [UI] 5·4–6·8 by March 2022 vs 5·0/1000, 3·6–6·8 in 2019) in high-income countries while remaining lower in middle-income countries. Across all time periods and income regions, RSV-associated ALRI hospitalisation rates peaked in infants aged 0–&lt;3 months and declined with increasing age. Compared to the pre-pandemic period, there was a significantly increased proportion of RSV-associated ALRI hospitalisations in those aged 12–&lt;24 months in high-income and upper-middle-income regions (ORs ranged from 1·30 [1·07–1·59] to 2·05 [1·66–2·54]). No consistent changes in disease severity were observed. Interpretation Our study documented a significant reduction in RSV-associated ALRI hospitalisation burden in children under five years during the first year of the COVID-19 pandemic. A rebound to pre-pandemic levels in RSV-associated ALRI hospitalisation rate was observed in the high-income region by March 2022 but not in the middle-income region, suggesting a more persistent negative impact of the COVID-19 pandemic on health-care systems and health-care access in middle-income regions. RSV surveillance needs to be established (or re-established) to monitor the changes in RSV epidemiology, particularly in low- and lower-middle-income countries.Funding EU Innovative Medicines Initiative Preparing for RSV Immunisation and Surveillance in Europe (PROMISE); Bill &amp; Melinda Gates Foundation; World Health Organization. <br/

    MiCREATE - Migrant Children and Communities in a Transforming Europe. Survey with pupils at Viennese schools (SUF edition)

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    Full edition for scientific use. The data was collected as part of the H2020 project "MiCREATE - Migrant Children and Communities in a Transforming Europe". It consists of results of a quantitative survey of about 500 children and adolescents with and without a migration background. The aim of the research was to gain insights into integration measures in the Austrian school and education system and to provide policy recommendations for the local, national and EU level from a child-centered perspective, as well as to develop tools for schools to facilitate intercultural learning

    MiCREATE - Migrant Children and Communities in a Transforming Europe. Interviews with Teachers at Viennese Schools (SUF edition)

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    Full edition for scientific use. The data was collected as part of the H2020 project "MiCREATE - Migrant Children and Communities in a Transforming Europe". It consists of transcripts of qualitative interviews and focus groups with school staff in selected Viennese schools. The aim of the research was to gain insights into integration measures in the Austrian school and education system and to provide policy recommendations for the local, national and EU level from a child-centered perspective, as well as to develop tools for schools to facilitate intercultural learning

    Inkoopseminar 2019 -- Inkoop achter de Horizon

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    Op donderdag 31 januari 2019 organiseerde het Instituut voor Facility Management samen met het Lectoraat Inkoopmanagement van de Hanzehogeschool Groningen de 14e editie van het Hanze Inkoopseminar: Inkoop achter de horizon. Dagvoorzitter Marleen van der Ziel (Onlanders) en Mira Bloemen-Bekx (Dean van het Instituut voor Facility Management) openden het seminar, dat door ruim 270 inkopers en studenten werd bezocht. De Nevi reikte deze keer de Purchase Promise Award uit aan het winnende studententeam Geard de Wit &amp; Emiel Rouhof

    A Novel GATA1 Variant in the C-Terminal Zinc Finger Compared with the Platelet Phenotype of Patients with A Likely Pathogenic Variant in the N-Terminal Zinc Finger

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    The GATA1 transcription factor is essential for normal erythropoiesis and megakaryocytic differentiation. Germline GATA1 pathogenic variants in the N-terminal zinc finger (N-ZF) are typically associated with X-linked thrombocytopenia, platelet dysfunction, and dyserythropoietic anemia. A few variants in the C-terminal ZF (C-ZF) domain are described with normal platelet count but altered platelet function as the main characteristic. Independently performed molecular genetic analysis identified a novel hemizygous variant (c.865C>T, p.H289Y) in the C-ZF region of GATA1 in a German patient and in a Spanish patient. We characterized the bleeding and platelet phenotype of these patients and compared these findings with the parameters of two German siblings carrying the likely pathogenic variant p.D218N in the GATA1 N-ZF domain. The main difference was profound thrombocytopenia in the brothers carrying the p.D218N variant compared to a normal platelet count in patients carrying the p.H289Y variant; only the Spanish patient occasionally developed mild thrombocytopenia. A functional platelet defect affecting αIIbβ3 integrin activation and α-granule secretion was present in all patients. Additionally, mild anemia, anisocytosis, and poikilocytosis were observed in the patients with the C-ZF variant. Our data support the concept that GATA1 variants located in the different ZF regions can lead to clinically diverse manifestations

    The Roles of PINK1, Parkin, and Mitochondrial Fidelity in Parkinson’s Disease

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    The Family Fusobacteriaceae

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