991 resultados para Goethe, Johann Wolfgang vonGoethe, Johann Wolfgang vonJohann WolfgangGoethevon
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wobey ein Anhang von den Anfangsgründen der chaldäischen Sprache
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Johann David Michaelis
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Inherited neurodegenerative disorders are debilitating diseases that occur across different species. We have performed clinical, pathological and genetic studies to characterize a novel canine neurodegenerative disease present in the Lagotto Romagnolo dog breed. Affected dogs suffer from progressive cerebellar ataxia, sometimes accompanied by episodic nystagmus and behavioral changes. Histological examination revealed unique pathological changes, including profound neuronal cytoplasmic vacuolization in the nervous system, as well as spheroid formation and cytoplasmic aggregation of vacuoles in secretory epithelial tissues and mesenchymal cells. Genetic analyses uncovered a missense change, c.1288G>A; p.A430T, in the autophagy-related ATG4D gene on canine chromosome 20 with a highly significant disease association (p = 3.8 x 10-136) in a cohort of more than 2300 Lagotto Romagnolo dogs. ATG4D encodes a poorly characterized cysteine protease belonging to the macroautophagy pathway. Accordingly, our histological analyses indicated altered autophagic flux in affected tissues. The knockdown of the zebrafish homologue atg4da resulted in a widespread developmental disturbance and neurodegeneration in the central nervous system. Our study describes a previously unknown canine neurological disease with particular pathological features and implicates the ATG4D protein as an important autophagy mediator in neuronal homeostasis. The canine phenotype serves as a model to delineate the disease-causing pathological mechanism(s) and ATG4D function, and can also be used to explore treatment options. Furthermore, our results reveal a novel candidate gene for human neurodegeneration and enable the development of a genetic test for veterinary diagnostic and breeding purposes.
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PURPOSE Rapid weight loss is a risk factor for gallstone formation, and postoperative treatment options for gallstone formation are still part of scientific discussion. No prospective studies monitored the incidence for gallstone formation and subsequent cholecystectomy after bariatric surgery longer than 5 years. The aim of the study was to determine the incidence of gallstone formation and cholecystectomy in bariatric patients over 10 years. MATERIALS AND METHODS One hundred nine patients were observed over 10 years after laparoscopic gastric banding or gastric bypass/gastric sleeve. The incidence of gallstone formation and cholecystectomy was correlated to longitudinal changes in anthropometric parameters. RESULTS In total, 91 female and 18 male patients were examined. Nineteen patients had postoperative gallstone formation, and 12 female patients required cholecystectomy. The number needed to harm for gallstone formation was 7.1 and 2.3 cases in the banding group and gastric bypass/gastric sleeve group, respectively. The number needed to harm for cholecystectomy was 11.6 and 2.5 cases in the banding group and the gastric bypass/gastric sleeve group, respectively. Weight loss was higher in patients requiring subsequent cholecystectomy. Mean follow-up to cholecystectomy was 21.5 months with the latest operation after 51 months. CONCLUSION Female gender and rapid weight loss were major risk factors for postoperative cholelithiasis. Ultrasound examinations within 2 to 5 years are recommended in every patient, independent of bariatric procedure. Pharmacologic treatment should be considered in high risk patients within 2 to 5 years to prevent postoperative cholelithiasis. This helps to optimize patient care and lowers postoperative morbidity.
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Signatur des Originals: S 36/G04626
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comp. and transl. by Scherzinger J. Arnold
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Bachofens Mutterrecht – längst ein Klassiker. Mit seiner These vom Matriarchat als ursprünglicher Gesellschaftsform war Bachofen der Erste, der es wagte, über eine geschichtliche Bedingtheit der Geschlechterrollen zu spekulieren und darüber, dass das Patriarchat eine vorübergehende Erscheinung sein könnte. Er half damit, die Krise der Männlichkeit zu bearbeiten, die sich nach dem verlorenen Krieg in den 20er Jahren besonders zuspitzte. Generationen von Autoren wurden von ihm beeinflusst; gelesen haben sie den Text – in der Kröner-Ausgabe. Zum 200. Geburtstag des Basler Altertumsforschers und Juristen erscheint die Auswahl seiner wirkungsmächtigsten Texte, die ab 1925 in mehreren kommentierten Auflagen im Kröner-Verlag erschien, erneut. Neben dem Mutterrecht (1861) enthält sie den Versuch über die Gräbersymbolik der Alten (1859) und Die Sage von Tanaquil (1870), neu und ausführlich eingeleitet von Yahya Elsaghe.
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Boberach: Der (neben Geheimrat Jonas) im viertgrößten Berliner Wahlbezirk gewählte Abgeordnete wird sich, obwohl selber Anhänger der Republik, der Mehrheitsentscheidung für die konstitutionelle Monarchie beugen, in der die Volksvertretung entscheidet, König und Minister nur raten und warnen dürfen. Die beiden letzten preußischen Ministerien haben das Heer als Hochburg reaktionären Junkertums nicht genug kontrolliert
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Welsch (Projektbearbeiter): Kurze Darstellung der Wahl Erzherzog Johanns zum Reichsverweser (29. Juni 1848) sowie seines bisherigen Lebenslaufes
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STRUCTURE OF CUPIENNIUS SALEI VENOM HYALURONIDASE Hyaluronidases are important venom components acting as spreading factor of toxic compounds. In several studies this spreading effect was tested on vertebrate tissue. However, data about the spreading activity on invertebrates, the main prey organisms of spiders, are lacking. Here, a hyaluronidase-like enzyme was isolated from the venom of the spider Cupiennius salei. The amino acid sequence of the enzyme was determined by cDNA analysis of the venom gland transcriptome and confirmed by protein analysis. Two complex N-linked glycans akin to honey bee hyaluronidase glycosylations, were identified by tandem mass spectrometry. A C-terminal EGF-like domain was identified in spider hyaluronidase using InterPro. The spider hyaluronidase-like enzyme showed maximal activity at acidic pH, between 40-60°C, and 0.2 M KCl. Divalent ions did not enhance HA degradation activity, indicating that they are not recruited for catalysis. FUNCTION OF VENOM HYALURONIDASES Besides hyaluronan, the enzyme degrades chondroitin sulfate A, whereas heparan sulfate and dermatan sulfate are not affected. The end products of hyaluronan degradation are tetramers, whereas chondroitin sulfate A is mainly degraded to hexamers. Identification of terminal N-acetylglucosamine or N-acetylgalactosamine at the reducing end of the oligomers identified the enzyme as an endo-β-N-acetyl-D-hexosaminidase hydrolase. The spreading effect of the hyaluronidase-like enzyme on invertebrate tissue was studied by coinjection of the enzyme with the Cupiennius salei main neurotoxin CsTx-1 into Drosophila flies. The enzyme significantly enhances the neurotoxic activity of CsTx-1. Comparative substrate degradation tests with hyaluronan, chondroitin sulfate A, dermatan sulfate, and heparan sulfate with venoms from 39 spider species from 21 families identified some spider families (Atypidae, Eresidae, Araneidae and Nephilidae) without activity of hyaluronidase-like enzymes. This is interpreted as a loss of this enzyme and fits quite well the current phylogenetic idea on a more isolated position of these families and can perhaps be explained by specialized prey catching techniques.