61 research outputs found

    Working or stay-at-home mum? The influence of family benefits and religiosity

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    It is a well-established fact that mothers' labour force participation reacts differently todifferent types of family benefits. It is also already well-known that cultural and religiousfactors have an impact on their labour force participation. But does the labour forcereaction to family benefits differ among more religious mothers? In this paper, I analysehow both factors – benefits and religiosity – interact when it comes to the decision concerninglabour force participation. Firstly, I present a theoretical model which predicts thatthis difference exists. Secondly, I test this prediction in a sample of pooled cross-sectiondata from 10 OECD countries using different measures to assess the extent of religiosity.There is evidence that religious mothers react less than non-religious mothers toincreases in family benefits. I also find important differences among various religiousaffiliations. These results imply that trends in religiosity should be considered whendesigning labour market policies.Female labour force participation, public benefits, culture, family attitudes

    Die Gleichstellungspolitik in der Europäischen Union

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    Das Thema Gleichstellung zwischen den Geschlechtern ist auf Ebene der europäischen Politik seit Ende der sechziger Jahre präsent. Der Bericht gibt einen Überblick über die Entwicklung der Gleichstellungspolitik in der Europäischen Union und weist auf noch vorhandene Defizite hinsichtlich der Gleichstellung von Frauen und Männern hin.Frauenpolitik, Gleichberechtigung, Geschlecht, EU-Recht, EU-Staaten

    Glutaminyl cyclase contributes to the formation of focal and diffuse pyroglutamate (pGlu)-Aβ deposits in hippocampus via distinct cellular mechanisms

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    In the hippocampal formation of Alzheimer’s disease (AD) patients, both focal and diffuse deposits of Aβ peptides appear in a subregion- and layer-specific manner. Recently, pyroglutamate (pGlu or pE)-modified Aβ peptides were identified as a highly pathogenic and seeding Aβ peptide species. Since the pE modification is catalyzed by glutaminyl cyclase (QC) this enzyme emerged as a novel pharmacological target for AD therapy. Here, we reveal the role of QC in the formation of different types of hippocampal pE-Aβ aggregates. First, we demonstrate that both, focal and diffuse pE-Aβ deposits are present in defined layers of the AD hippocampus. While the focal type of pE-Aβ aggregates was found to be associated with the somata of QC-expressing interneurons, the diffuse type was not. To address this discrepancy, the hippocampus of amyloid precursor protein transgenic mice was analysed. Similar to observations made in AD, focal (i.e. core-containing) pE-Aβ deposits originating from QC-positive neurons and diffuse pE-Aβ deposits not associated with QC were detected in Tg2576 mouse hippocampus. The hippocampal layers harbouring diffuse pE-Aβ deposits receive multiple afferents from QC-rich neuronal populations of the entorhinal cortex and locus coeruleus. This might point towards a mechanism in which pE-Aβ and/or QC are being released from projection neurons at hippocampal synapses. Indeed, there are a number of reports demonstrating the reduction of diffuse, but not of focal, Aβ deposits in hippocampus after deafferentation experiments. Moreover, we demonstrate in neurons by live cell imaging and by enzymatic activity assays that QC is secreted in a constitutive and regulated manner. Thus, it is concluded that hippocampal pE-Aβ plaques may develop through at least two different mechanisms: intracellularly at sites of somatic QC activity as well as extracellularly through seeding at terminal fields of QC expressing projection neurons

    Association of angiogenic factors with prognosis in esophageal cancer

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    Background: Despite multimodal therapy esophageal cancer often presents with poor prognosis. To improve outcome, tumor angiogenesis and anti-angiogenic therapeutic agents have recently gained importance. However, patient subgroups who benefit from anti-angiogenic therapy are not yet defined. In this retrospective exploratory study we investigated 9 angiogenic factors in patients’ serum and tissue samples with regard to their association with clinicopathological parameters, prognosis and response in patients with locally advanced preoperatively treated esophageal cancer. Methods: From 2007 to 2012 preoperative serum and corresponding tumor tissue (n = 54), only serum (n = 20) or only tumor tissue (n = 4) were collected from esophageal squamous cell carcinoma (SCC) (n = 34) and adenocarcinoma of the esophagogastric junction (AEG) (n = 44) staged cT3/4NanyM0/x after preoperative chemo(radio)therapy. Angiogenic cytokine levels in both tissue and serum were measured by multiplex immunoassay. Results: Median survival in all patients was 28.49 months. No significant difference was found in survival between SCC and AEG (p = 0.90). 26 patients were histopathological responders. Histopathological response was associated with prognosis (p = 0.05). Angiogenic factors were associated with the following clinicopathological factors: tumor tissue expression of Angiopoietin-2 and Follistatin was higher in SCC compared to AEG (p = 0.022 and p = 0.001). High HGF and Follistatin expression in the tumor tissue was associated with poor prognosis in all patients (p = 0.037 and p = 0.036). No association with prognosis was found in the patients’ serum. Neither patients’ serum nor tumor tissue showed an association between angiogenic factors and response to neoadjuvant therapy. Conclusion: Two angiogenic factors (HGF and Follistatin) in posttherapeutic tumor tissue are associated with prognosis in esophageal cancer patients. Biological differences of AEG and SCC with respect to angiogenesis were evident by the different expression of 2 angiogenic factors. Results are promising and should be pursued prospectively, optimally sequentially pre- and posttherapeutically

    BDD-NET – Ein internetbasiertes Programm bei Körperunzufriedenheit zur niedrigschwelligen Behandlung der körperdysmorphen Störung für den deutschen Sprachraum

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    Hintergrund: Die Körperdysmorphe Störung (KDS) ist eine schwerwiegende psychische Störung, die mit starker Scham sowie Leidensdruck und Funktionseinschränkungen einhergeht. Kognitive Verhaltenstherapie stellt die aktuell wirksamste evidenzbasierte Behandlungsmethode dar. Aufgrund zahlreicher Behandlungsbarrieren kommen KDS-Betroffene jedoch selten in der psychotherapeutischen Behandlung an, weshalb niedrigschwelligen Behandlungsmethoden (z.B. aus dem Bereich E-Mental-Health) eine wichtige Rolle zukommen könnten. Erste internationale Studien weisen auf die Wirksamkeit von E-Mental-Health-Angeboten bei KDS hin. Material und Methoden: Dieser Beitrag gibt eine Übersicht zur bisherigen Umsetzung und Evidenz von E-Mental-Health-Angeboten für KDS und stellt die ins Deutsche übersetzte Version des BDD-NET-Programms, eines internetbasierten, manuali­sierten, therapeutenbegleiteten Interventionsprogramms, für die KDS vor, welches aus dem Englischen für den deutschen Sprachraum übersetzt und adaptiert wurde. Ergebnisse: BDD-NET umfasst acht Module, die binnen einer 12-wöchigen Behandlung online bearbeitet werden. Die Online-Plattform bietet für die Patienten die Möglichkeit, mit dem BDD-NET-Therapeuten mittels persönlicher Nachrichten zu kommunizieren. Sämtliche Materialien wurden aus dem Englischen übersetzt und vor allem in kultureller Hinsicht adaptiert. Schlussfolgerungen: BDD-NET könnte ein wichtiger Baustein in der Versorgung von KDS-Betroffenen sein. Die Evaluation steht für den deutschen Sprachraum noch aus. Auf Besonderheiten des Settings (z.B. Störungseinsicht als möglicher Behandlungsfokus) sowie praktische Implikationen wird eingegangen. Zudem werden Voraussetzungen und Rahmenbedingungen für eine perspektivische Dissemination diskutiert

    Instrumente zur Rekrutierung internationaler Studierender: Ein Praxisleitfaden fĂĽr erfolgreiches Hochschulmarketing

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    Entscheidung für eine Hochschule fällt nicht von ungefähr: Im Wettbewerb um Talente gilt es, bei ausländischen Studierenden Aufmerksamkeit zu erzielen, sie zur Bewerbung und zur Aufnahme des Studiums zu motivieren. GATE-Germany hat einen Leitfaden zu Einsatz und Eignung unterschiedlicher Kommunikationsinstrumente erstellt (z.B. Messen, Anzeigen, Broschüren, Websites), der auf den Ergebnissen einer internationalen Studie beruht

    Protein-Primed and De Novo Initiation of RNA Synthesis by Norovirus 3D(pol)

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    Noroviruses (Caliciviridae) are RNA viruses with a single-stranded, positive-oriented polyadenylated genome. To date, little is known about the replication strategy of norovirus, a so-far noncultivable virus. We have examined the initiation of replication of the norovirus genome in vitro, using the active norovirus RNA-dependent RNA polymerase (3D(pol)), homopolymeric templates, and synthetic subgenomic or antisubgenomic RNA. Initiation of RNA synthesis on homopolymeric templates as well as replication of subgenomic polyadenylated RNA was strictly primer dependent. In this context and as observed for other enteric RNA viruses, i.e., poliovirus, a protein-primed initiation of RNA synthesis after elongation of the VPg by norovirus 3D(pol) was postulated. To address this question, norovirus VPg was expressed in Escherichia coli and purified. Incubation of VPg with norovirus 3D(pol) generated VPg-poly(U), which primed the replication of subgenomic polyadenylated RNA. In contrast, replication of antisubgenomic RNA was not primer dependent, nor did it depend on a leader sequence, as evidenced by deletion analysis of the 3′ termini of subgenomic and antisubgenomic RNA. On nonpolyadenylated RNA, i.e., antisubgenomic RNA, norovirus 3D(pol) initiated RNA synthesis de novo and terminated RNA synthesis by a poly(C) stretch. Interestingly, on poly(C) RNA templates, norovirus 3D(pol) initiated RNA synthesis de novo in the presence of high concentrations of GTP. We propose a novel model for initiation of replication of the norovirus genome by 3D(pol), with a VPg-protein-primed initiation of replication of polyadenylated genomic RNA and a de novo initiation of replication of antigenomic RNA

    Influenza A virus encoding secreted Gaussia luciferase as useful tool to analyze viral replication and its inhibition by antiviral compounds and cellular proteins.

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    Reporter genes inserted into viral genomes enable the easy and rapid quantification of virus replication, which is instrumental to efficient in vitro screening of antiviral compounds or in vivo analysis of viral spread and pathogenesis. Based on a published design, we have generated several replication competent influenza A viruses carrying either fluorescent proteins or Gaussia luciferase. Reporter activity could be readily quantified in infected cultures, but the virus encoding Gaussia luciferase was more stable than viruses bearing fluorescent proteins and was therefore analyzed in detail. Quantification of Gaussia luciferase activity in the supernatants of infected culture allowed the convenient and highly sensitive detection of viral spread, and enzymatic activity correlated with the number of infectious particles released from infected cells. Furthermore, the Gaussia luciferase encoding virus allowed the sensitive quantification of the antiviral activity of the neuraminidase inhibitor (NAI) zanamivir and the host cell interferon-inducible transmembrane (IFITM) proteins 1-3, which are known to inhibit influenza virus entry. Finally, the virus was used to demonstrate that influenza A virus infection is sensitive to a modulator of endosomal cholesterol, in keeping with the concept that IFITMs inhibit viral entry by altering cholesterol levels in the endosomal membrane. In sum, we report the characterization of a novel influenza A reporter virus, which allows fast and sensitive detection of viral spread and its inhibition, and we show that influenza A virus entry is sensitive to alterations of endosomal cholesterol levels
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