Publications by authors named "Gesa Meyer"

Background: Well-trained public health professionals are key to addressing both global and local public health challenges of the twenty-first century. Though availability of programs has increased, the population health science (PHS) and public health (PH) higher education landscape in Germany remains scattered. To date, no comprehensive overview of programs exists.

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Objective: Evaluate relatives' experience of delirium due to an acute health event in a loved person and to compile practical suggestions for health care professionals from these synthesized results.

Background: Delirium resulting from an acute health event places patients at increased risk for prolonged hospitalization and mortality. A delirium episode also affects family members who may assist in the diagnosis and recovery from this condition.

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Long-term atmospheric CO concentration records have suggested a reduction in the positive effect of warming on high-latitude carbon uptake since the 1990s. A variety of mechanisms have been proposed to explain the reduced net carbon sink of northern ecosystems with increased air temperature, including water stress on vegetation and increased respiration over recent decades. However, the lack of consistent long-term carbon flux and in situ soil moisture data has severely limited our ability to identify the mechanisms responsible for the recent reduced carbon sink strength.

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Article Synopsis
  • Arctic warming is impacting snow cover and soil hydrology, which in turn affects carbon sequestration in tundra ecosystems.
  • A study using 119 site-years of data revealed that earlier snowmelt boosts carbon sequestration and plant productivity in early summer (June-July) but reduces them in August.
  • Despite higher evapotranspiration leading to potential soil drying, earlier snowmelt did not significantly decrease soil moisture, suggesting that without continued carbon uptake in late summer, the benefits of a longer growing season may not be realized.
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Toxin A (TcdA) and toxin B (TcdB) are the major virulence factors of Clostridium difficile and are the causative agents for clinical symptoms, such as secretory diarrhoea and pseudomembranous colitis. Mast cells are essentially involved in the toxin-induced colonic inflammatory processes. To study the direct effects of these toxins on the expression of inflammatory genes, a DNA microarray containing evaluated probes of 90 selected inflammatory genes was applied to the immature mast cell line HMC-1.

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Clostridium difficile toxins A and B (TcdA and TcdB) are the causative agents of antibiotic-associated pseudomembranous colitis. Mucosal mast cells play a crucial role in the inflammatory processes underlying this disease. We studied the direct effects of TcdA and TcdB on the human mast cell line HMC-1 with respect to degranulation, cytokine release, and the activation of proinflammatory signal pathways.

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OcaB, a transcriptional coactivator also known as Bob-1 or OBF-1, was isolated on the basis of its ability to enhance transcription of immunoglobulin (Ig) genes in vitro. Paradoxically, OcaB(-/-) mice showed no apparent deficiency in Ig gene transcription, only cellular immune defects including absence of germinal centers (GC) and decreased numbers of immature B cells; the genes targeted by OcaB were not determined. Here we report that OcaB is essential for V(D)J recombination of a subset of Igkappa genes.

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