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Background: Patients with chronic kidney disease (CKD) have considerable cardiovascular morbidity and mortality. Aortic stiffness is an independent predictor of cardiovascular risk and related to left ventricular remodeling and heart failure. Myocardial fibrosis is the pathophysiological hallmark of the failing heart.
Methods and results: An observational study of consecutive CKD patients (n = 276) undergoing comprehensive clinical cardiovascular magnetic resonance imaging. The relationship between aortic stiffness, myocardial fibrosis, left ventricular remodeling and the severity of chronic kidney disease was examined. Compared to age-gender matched controls with no known kidney disease (n = 242), CKD patients had considerably higher myocardial native T1 and central aortic PWV (p ≪ 0.001), as well as abnormal diastolic relaxation by E/e′ (mean) by echocardiography (p ≪ 0.01). A third of all patients had LGE, with similar proportions for the presence and the (ischaemic and non-ischaemic) pattern between the groups. PWV was strongly associated with and age, NT-proBNP and native T1 in both groups, but not with LGE presence or type; the associations were amplified in severe CKD stages. In multivariate analyses, PWV was independently associated with native T1 in both groups (p ≪ 0.01) with near two-fold increase in adjusted R2 in the presence of CKD (native T1 (10 ms) R2, B(95%CI) CKD vs. non-CKD 0.28, 0.2(0.15–0.25) vs. 0.18, 0.1(0.06–0.15), p ≪ 0.01).
Conclusions: Aortic stiffness and interstitial myocardial fibrosis are interrelated; this association is accelerated in the presence of CKD, but independent of LGE. Our findings reiterate the significant contribution of CKD-related factors to the pathophysiology of cardiovascular remodeling.
Partant des conditions de mise en place de l’une des dernières commissions d’historiens bilatérales en date – à savoir la commission germano-italienne en 2008 – et du constat de la nature à la fois ambigüe et excessive des attentes formulées à son encontre, cet ouvrage collectif dirigé par deux historiens du temps présent (l’Allemand Christoph Cornelißen et l’Italien Paolo Pezzino) place au cœur de la réflexion la figure de l’historien confronté à une demande d’expertise croissante dans le contexte de l’après guerre froide. Il examine les usages pratiques (voire politiques) des savoirs académiques historiques et leurs effets sur les standards de production de ces savoirs assurant la légitimité professionnelle et sociale des historiens. ...
Das hochwertig ausgestattete Buch vereint elf der im Jahre 2017 in Goslar gehaltenen Vorträge zum Jubiläum der tausendsten Wiederkehr des Geburtstages Heinrichs III. Der Rezensent beteiligte sich in dieser Reihe mit einem Beitrag, der wegen seiner umfangreichen Thematik ("Das salische Reich und Europa zur Zeit Kaiser Heinrichs III.") nicht in eine Kurzfassung gegossen werden konnte, was hier der Fairness halber bemerkt werden muss. ...
Introduction: Vacuolization is a frequently found morphological feature in acute myeloid leukemia (AML) blasts. Subcellular origin and biological function as well as prognostic impact are currently unknown. The aim of this study was to evaluate whether vacuolization correlates with clinically relevant AML features.
Materials & methods: Bone marrow smears of patients diagnosed with AML at the University Hospital Frankfurt between January 2011 and August 2013 were analyzed for blast vacuolization and correlated with clinically relevant AML features. Patients undergoing standard induction chemotherapy were further analyzed for molecular and cytogenetic features as well as treatment response and survival.
Results: 14 of 100 patients diagnosed with AML receiving standard induction chemotherapy had evidence of blast vacuolization. Positivity for vacuolization correlated with a CD15 positive immunophenotype and with a higher incidence of high-risk AML according to the European LeukemiaNet risk stratification. AML patients with blast vacuolization had a poor blast clearance after standard induction chemotherapy and poor survival.
Discussion: In conclusion, our findings demonstrate that vacuolization can easily be determined in myeloid leukemia blasts and may be a useful biomarker to predict AML risk groups as well as early treatment response rates and survival.
Masha Bruskina wurde im Jahr 1924 in Minsk als Jüdin geboren und genoss eine gute Bildung. Doch als sie gerade einmal 17 Jahren alt war, brach der Krieg über die Sowjetunion herein und es dauerte bloß sechs Tage, bis die deutschen Truppen die Stadt einnahmen. Bruskina war als überzeugte Kommunistin schon im jungen Alter Leiterin einer Pioniereinheit und doch gezwungen, im Minsker Ghetto zu leben. In dem Unwillen ihr Schicksal hinzunehmen, wechselte sie auf die sogenannte "arische Seite" und gab sich als Nichtjüdin aus: Sie färbte ihre Haare und nahm den Namen ihrer Mutter an. Bald darauf schloss sie sich dem im Untergrund operierenden Minsker Widerstand an und arbeite als Krankenschwester, um sowjetische Soldaten in einem Krankenhaus zu versorgen und ihnen bei der Flucht zu helfen. Sie schmuggelte zivile Kleidung und Medikamente, zudem eine Kamera, mit der sie gefälschte Ausweise herstellte. Waren die Soldaten wieder auf den Beinen, führten die anderen Widerständler sie durch die Wälder zur Partisanenbewegung. ...
The focus of this paper are space-improvements of programs, which are transformations that do not worsen the space requirement during evaluations. A realistic theoretical treatment must take garbage collection method into account. We investigate space improvements under the assumption of an optimal garbage collector. Such a garbage collector is not implementable, but there is an advantage: The investigations are independent of potential changes in an implementable garbage collector and our results show that the evaluation and other similar transformations are space-improvements.
Uni-Highlights Oktober 2019 : Einladungen zu ausgewählten Veranstaltungen der Goethe-Universität
(2019)
Facebook’s proposal to create a global digital currency, Libra, has generated a wide discussion about its potential benefits and drawbacks. This note contributes to this discussion and, first, characterizes similarities and dissimilarities of Libra’s building blocks with existing institutions. Second, the note discusses open questions about Libra which arise from this characterization and, third, potential future developments and their policy implications. A central issue is that Libra raises considerable questions about its role in and impact on the international monetary and financial system that should be addressed before policymakers and regulators give Libra the green light.