TY - JOUR A1 - Fischer, Stefan A1 - Spierling, Nastasja G. A1 - Heuser, Elisa A1 - Kling, Christopher A1 - Schmidt, Sabrina A1 - Rosenfeld, Ulrike M. A1 - Reil, Daniela A1 - Imholt, Christian A1 - Jacob, Jens A1 - Ulrich, Rainer G. A1 - Essbauer, Sandra T1 - High prevalence of Rickettsia helvetica in wild small mammal populations in Germany JF - Ticks and Tick-borne Diseases N2 - Since the beginning of the 21st century, spotted fever rickettsioses are known as emerging diseases worldwide. Rickettsiae are obligately intracellular bacteria transmitted by arthropod vectors. The ecology of Rickettsia species has not been investigated in detail, but small mammals are considered to play a role as reservoirs. Aim of this study was to monitor rickettsiae in wild small mammals over a period of five years in four federal states of Germany. Initial screening of ear pinna tissues of 3939 animals by Pan-Rick real-time PCR targeting the citrate synthase (gltA) gene revealed 296 rodents of seven species and 19 shrews of two species positive for rickettsial DNA. Outer membrane protein gene (ompB, ompAIV) PCRs based typing resulted in the identification of three species: Rickettsia helvetica (90.9%) was found as the dominantly occurring species in the four investigated federal states, but Rickettsia felis (7.8%) and Rickettsia raoultii (1.3%) were also detected. The prevalence of Rickettsia spp. in rodents of the genus Apodemus was found to be higher (approximately 14%) than in all other rodent and shrew species at all investigated sites. General linear mixed model analyses indicated that heavier (older) individuals of yellow-necked mice and male common voles seem to contain more often rickettsial DNA than younger ones. Furthermore, rodents generally collected in forests in summer and autumn more often carried rickettsial DNA. In conclusion, this study indicated a high prevalence of R. helvetica in small mammal populations and suggests an age-dependent increase of the DNA prevalence in some of the species and in animals originating from forest habitats. The finding of R. helvetica and R. felis DNA in multiple small mammal species may indicate frequent trans-species transmission by feeding of vectors on different species. Further investigations should target the reason for the discrepancy between the high rickettsial DNA prevalence in rodents and the so far almost absence of clinical apparent human infections. KW - Rickettsia helvetica KW - Rodent KW - Germany KW - Age KW - Reproduction KW - Season Y1 - 2018 U6 - https://doi.org/10.1016/j.ttbdis.2018.01.009 SN - 1877-959X SN - 1877-9603 VL - 9 IS - 3 SP - 500 EP - 505 PB - Elsevier GMBH CY - München ER - TY - JOUR A1 - Ruszkiewicz, Joanna A. A1 - de Macedo, Gabriel Teixeira A1 - Miranda-Vizuete, Antonio A1 - Teixeira da Rocha, Joao B. A1 - Bowman, Aaron B. A1 - Bornhorst, Julia A1 - Schwerdtle, Tanja A1 - Aschner, Michael T1 - The cytoplasmic thioredoxin system in Caenorhabditis elegans affords protection from methylmercury in an age-specific manner JF - Neurotoxicology : the interdisciplinary journal of effects to toxic substances on the nervous system N2 - Methylmercury (MeHg) is an environmental pollutant linked to many neurological defects, especially in developing individuals. The thioredoxin (TRX) system is a key redox regulator affected by MeHg toxicity, however the mechanisms and consequences of MeHg-induced dysfunction are not completely understood. This study evaluated the role of the TRX system in C. elegans susceptibility to MeHg during development. Worms lacking or overexpressing proteins from the TRX family were exposed to MeHg for 1 h at different developmental stage: L1, L4 and adult. Worms without cytoplasmic thioredoxin system exhibited age-specific susceptibility to MeHg when compared to wild-type (wt). This susceptibility corresponded partially to decreased total glutathione (GSH) levels and enhanced degeneration of dopaminergic neurons. In contrast, the overexpression of the cytoplasmic system TRX-1/TRXR-1 did not provide substantial protection against MeHg. Moreover, transgenic worms exhibited decreased protein expression for cytoplasmic thioredoxin reductase (TRXR-1). Both mitochondrial thioredoxin system TRX-2/TRXR-2, as well as other thioredoxin-like proteins: TRX-3, TRX-4, TRX-5 did not show significant role in C. elegans resistance to MeHg. Based on the current findings, the cytoplasmic thioredoxin system TRX-1/TRXR-1 emerges as an important age-sensitive protectant against MeHg toxicity in C. elegans. KW - Methylmercury KW - Age KW - Development KW - C. elegans KW - Thioredoxin KW - Thioredoxin reductase Y1 - 2018 U6 - https://doi.org/10.1016/j.neuro.2018.08.007 SN - 0161-813X SN - 1872-9711 VL - 68 SP - 189 EP - 202 PB - Elsevier CY - Amsterdam ER - TY - THES A1 - Keruth, Christine T1 - Die Pietà-Ilkonik in der Gegenwartskunst T1 - The Pietà iconic in contemporary art BT - Modifikation und Innovation einer Bildformel BT - modification and innovation of an image formula N2 - Die vorliegende Studie beschreitet im religionswissenschaftlichen Kontext einen Weg zur Erforschung der Modifikation und Neuausrichtung eines einzelnen christlichen Bildmotivs, dessen Bildformel sich bis in die Gegenwart durchgesetzt hat. Das Bildmotiv der Pietà wird in der Gegenwartskunst verstärkt als innovative Bildformel in politischen oder sozialen Kontexten verwendet, um existenzielle Lebenserfahrungen oder gesellschaftskritische, sowie politische Anklagen zu formulieren. Es erlebt einen Relaunch in der Medienberichterstattung, der Kunst, in Filmen oder der Alltagskultur. Künstler_innen und Fotojournalist_innen geben ihren Objekten vermehrt den Titel Pietà oder er wird ihnen von außen zuge-schrieben. Die Semantik dieses spezifischen Bildmotivs rührt offenbar an und kann bei Betrachtenden eine emotionale Gestimmtheit evozieren. Für diese Stu-die ist das Norm- und Wertesystem mit dem dahinter liegenden Tradierungs- und Transformationsprozess von Interesse. Bisher fehlt eine Monografie, in der die Zusammenhänge der Wiederbelebung eines primär christlichen Bildmotivs und der gegenwärtigen Bezüge zu Gewalt, Tod, Angst, Vergänglichkeit, dem Altern oder des Verlustes analysiert werden. Im Vordergrund steht die Frage nach einer Modifikation bzw. Neuinterpretation dieser Ikonik. Das Aufzeigen eines möglichen dynamischen Entwicklungspro-zesses des Bildmotivs soll klären, welche veränderten Funktionen dem Pietà-Motiv in der Gegenwartskunst zugeschrieben werden. Über ein Set international renomierter, zeitgenössischer Künstler_innen werden eventuelle Veränderun-gen und ein damit verbundener gesellschaftlicher Bedeutungswandel seit dem 21. Jahrhundert analysiert. Vor diesem Hintergrund ist die Frage nach einer religionsübergreifenden Wirk-mächtigkeit ikonischer Präsenz eines religiösen Bildmotivs in der Kunst und den Bildmedien von aktueller Relevanz. Diese Studie leistet einen exemplarischen Beitrag für die Affektforschung, die sich in den vergangenen Jahren vermehrt mit der Emotionsdarstellung und der Emotionsvermittlung in den audiovisuellen Medien befasst. N2 - In the context of religious studies, this study takes a path towards researching the modification and reorientation of a single Christian pictorial motif whose pictorial formula has prevailed up to the present day. The pictorial motif of the Pietà is increasingly used in contemporary art as an in-novative pictorial formula in political or social contexts to formulate existential life experiences or socially critical as well as political accusations. It is experiencing a relaunch in media reporting, art, films or everyday culture. Artists and photo-journalists increasingly give their objects the title Pietà or it is attributed to them from outside. The semantics of this specific image motif is obviously touching and can evoke an emotional mood in the viewer. For this study, the norm and value system with the underlying process of transmission and transformation is of inter-est. So far, there is no monograph that analyses the connections between the revival of a primarily Christian pictorial motif and contemporary references to vio-lence, death, fear, transience, ageing or loss. The focus is on the question of a modification or reinterpretation of this iconogra-phy. The demonstration of a possible dynamic development process of the picto-rial motif should clarify which changed functions are attributed to the Pietà motif in contemporary art. Through a set of internationally renowned contemporary art-ists, possible changes and an associated change in social meaning since the 21st century will be analysed. Against this background, the question of the cross-religious impact of the iconic presence of a religious image motif in art and the visual media is of current rele-vance. This study makes an exemplary contribution to research on affect, which in recent years has increasingly been concerned with the representation and conveyance of emotion in audiovisual media. KW - Pietà KW - Gegenwartskunst KW - Word Press Photo KW - Schmerz KW - Gewalt KW - Affekt KW - Medienemotion KW - Vanitas KW - Alter KW - lacuna KW - Michelangelo KW - Käthe Kollwitz KW - Ayad Alkadhi KW - Berlinde De Bruyckere KW - Paul Fryer KW - Anselm Kiefer KW - Kevin Brand KW - Jan Fabre KW - Lotta Blokker KW - Pascal Convert KW - Ernest Pignon-Ernest KW - Julia Krahn KW - Stephan Popella KW - Christian Bazant-Hegemark KW - Jorge Villalba-Strohecker KW - Gil Shachar KW - Andres Serrano KW - Pablo Picasso KW - Contemporary Art KW - Pain KW - Violence KW - Affect KW - Media Emotion KW - Age KW - Urban Art Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-516617 ER -