864 research outputs found
Sicherheit. Anspruch - Versprechen - Utopie
Zusammenfassung: Im Rahmen des Artikels wird das PhĂ€nomen der Unsicherheit auf Basis der Plessnerschen anthropologischen Perspektive aufgezeigt und der Umgang mit diesem PhĂ€nomen fokussiert: expliziert werden der unsicherheitskompensierende, utopische Gehalt von Selbst- und GemeinschaftsentwĂŒrfen sowie gesellschaftspolitische Techniken. Ausgehend von den Schein-Handlungssicherheiten erzeugenden MaĂnahmen im Kontext der Sozialen Arbeit wird das Sicherheitsversprechen in dem gesellschaftlichen Zusammenhang zwischen Markt, Staat und Zukunftsprognosen machttheoretisch verortet. Weiterhin wird aufgezeigt, wie diese paradoxalen Verflechtungen: das anthropologische BedĂŒrfnis, Verlangen nach bzw. Anspruch auf Sicherheit, das Versprechen dieser Sicherheit mittels politischer MaĂnahmen sowie die faktische Nichteinlösbarkeit dieses Versprechens, die Utopie der Sicherheit, eine Sicherheitsspirale generiere
Late Triassic acidic volcanic clasts in different Neotethyan sedimentary mélanges: paleogeographic and geodynamic implication
U/Pb zircon dating and trace element geochemical analysis were performed on rhyolite
clasts of different Middle Jurassic sedimentary mélanges from the Western Carpathian
and Dinaric orogen. These igneous clast-bearing sedimentary successions were
deposited on the westernmost passive margin of the Neotethys Ocean. During the
latest Jurassic and Cretaceous, they became parts of different nappe stacks forming
now the Inner Western Carpathians and some inselbergs within the Pannonian Basin.
The Meliata nappe was stacked on the northern passive margin, while the Telekesoldal
and Mónosbél nappes were part of the imbricated western - south-western margin.
U/Pb dating of the 100m-sized blocks and redeposited smaller clasts and fine-grained
sediments formed two age groups: 222.6±6.7 and 209.0±9 Ma. Trace element
geochemistry suggested within plate continental volcanism as magma source.
However, the measured ages are definitely younger than the classic, rift-related
Anisian - Ladinian (238-242 Ma) magmatism, which was widespread along the western
and south-western margin of the Neotethys Ocean (e.g. Dolomites, different Dinaridic
units). On the other hand, similar, Late Triassic ages are reported from tuff
intercalations from the Outer Dinarides and Western Carpathians, along with even
more sparse effusive rocks of the Slovenian Trough. Trace element (incl. rare earth element) analysis showed positive correlation between the mélange clasts and the in
situ Late Triassic rhyolites of the Slovenian Trough. This newly established link
between the mélange nappes in NE Hungary and the in situ Late Triassic rhyolites in
the Slovenian Trough make a good opportunity to reconsider both Middle Jurassic
paleogeography, and later tectonic deformations, which led to the separation of the
source area and the redeposited clasts
High prevalence of anti-HCV antibodies in two metropolitan emergency departments in Germany : a prospective screening analysis of 28,809 patients
Background and Aims: The prevalence of hepatitis C virus (HCV) antibodies in Germany has been estimated to be in the range of 0.4â0.63%. Screening for HCV is recommended in patients with elevated ALT levels or significant risk factors for HCV transmission only. However, 15â30% of patients report no risk factors and ALT levels can be normal in up to 20â30% of patients with chronic HCV infection. The aim of this study was to assess the HCV seroprevalence in patients visiting two tertiary care emergency departments in Berlin and Frankfurt, respectively.
Methods: Between May 2008 and March 2010, a total of 28,809 consecutive patients were screened for the presence of anti-HCV antibodies. Anti-HCV positive sera were subsequently tested for HCV-RNA.
Results: The overall HCV seroprevalence was 2.6% (95% CI: 2.4â2.8; 2.4% in Berlin and 3.5% in Frankfurt). HCV-RNA was detectable in 68% of anti-HCV positive cases. Thus, the prevalence of chronic HCV infection in the overall study population was 1.6% (95% CI 1.5â1.8). The most commonly reported risk factor was former/current injection drug use (IDU; 31.2%) and those with IDU as the main risk factor were significantly younger than patients without IDU (p<0.001) and the male-to-female ratio was 72% (121 vs. 46 patients; p<0.001). Finally, 18.8% of contacted HCV-RNA positive patients had not been diagnosed previously.
Conclusions: The HCV seroprevalence was more than four times higher compared to current estimates and almost one fifth of contacted HCV-RNA positive patients had not been diagnosed previously
Multi-omics assessment of dilated cardiomyopathy using non-negative matrix factorization
Dilated cardiomyopathy (DCM), a myocardial disease, is heterogeneous and often results in
heart failure and sudden cardiac death. Unavailability of cardiac tissue has hindered the
comprehensive exploration of gene regulatory networks and nodal players in DCM. In this
study, we carried out integrated analysis of transcriptome and methylome data using nonnegative matrix factorization from a cohort of DCM patients to uncover underlying latent factors and covarying features between whole-transcriptome and epigenome omics datasets
from tissue biopsies of living patients. DNA methylation data from Infinium HM450 and
mRNA Illumina sequencing of n = 33 DCM and n = 24 control probands were filtered, analyzed and used as input for matrix factorization using R NMF package. Mann-Whitney U test
showed 4 out of 5 latent factors are significantly different between DCM and control probands (P<0.05). Characterization of top 10% features driving each latent factor showed a
significant enrichment of biological processes known to be involved in DCM pathogenesis,
including immune response (P = 3.97E-21), nucleic acid binding (P = 1.42E-18), extracellular matrix (P = 9.23E-14) and myofibrillar structure (P = 8.46E-12). Correlation network analysis revealed interaction of important sarcomeric genes like Nebulin, Tropomyosin alpha-3
and ERC-protein 2 with CpG methylation of ATPase Phospholipid Transporting 11A0, Solute Carrier Family 12 Member 7 and Leucine Rich Repeat Containing 14B, all with significant P values associated with correlation coefficients >0.7. Using matrix factorization, multiomics data derived from human tissue samples can be integrated and novel interactions
can be identified. Hypothesis generating nature of such analysis could help to better understand the pathophysiology of complex traits such as DCM
TriĂĄsz Ă©s jura lejtĆfĂĄciesek jelentĆsĂ©ge a Neotethys ĂNy-i vĂ©gĂ©nek geodinamikai Ă©rtelmezĂ©sĂ©ben = Importance of Triassic and Jurassic slope facies in the geodynamic reconstruction of the NW termination of the Neotethys
A program cĂ©lja az Ă©szak-magyarorszĂĄgi triĂĄsz Ă©s jura medence- Ă©s lejtĆfĂĄciesek szedimentolĂłgiai Ă©s rĂ©tegtani vizsgĂĄlata volt Ășj fejlĆdĂ©störtĂ©neti szintĂ©zis kidolgozĂĄsa Ă©rdekĂ©ben, Ă©s azĂ©rt, hogy lehetĆvĂ© vĂĄljon a korrelĂĄciĂł a DinaridĂĄk Ă©s a HellenidĂĄk hasonlĂł korĂș Ă©s kifejlĆdĂ©sƱ kĂ©pzĆdmĂ©nyeivel. A kutatĂĄsokat a BĂŒkkben, a darnĂłi terĂŒleten, a MĂĄtrĂĄban mĂ©lyĂtett fĂșrĂĄsok anyagĂĄn Ă©s a RudabĂĄnyai-hegysĂ©gben vĂ©geztĂŒk. Az összehasonlĂtĂł elemzĂ©s Ă©rdekĂ©ben terepi megfigyelĂ©seket Ă©s vizsgĂĄlatokat vĂ©geztĂŒnk a DinaridĂĄkban, a HellenidĂĄkban, a Keleti- Alpokban Ă©s a Nyugati-KĂĄrpĂĄtokban. A Neotethys akkrĂ©ciĂłs komplexumĂĄnak rĂ©szĂ©t kĂ©pezĆ bĂŒkki, tovĂĄbbĂĄ a MĂĄtra aljzatĂĄt alkotĂł Ă©s a DarnĂł környĂ©ki kĂ©pzĆdmĂ©nyek alapvetĆ jellegei jĂłl megfeleltethetĆk a DinaridĂĄkban ismertekkel, Ă©s ennĂ©l fogva kĂ©pzĆdĂ©si körĂŒlmĂ©nyeik is levezethetĆek a DinaridĂĄkra a közelmĂșltban kidolgozott modellekbĆl. A RudabĂĄnyai-hegysĂ©gben megismert olisztosztrĂłmĂĄk törmelĂ©kanyaga mutat ugyan összetĂ©telbeli eltĂ©rĂ©seket a bĂŒkkiekhez Ă©s a mĂĄtraiakhoz kĂ©pest, de fontos összekapcsolĂł bĂ©lyegeket is felismertĂŒnk. Az Ăszaki MĂ©szkĆalpokban megfigyelt szubdukciĂłhoz köthetĆ jelensĂ©gek szedimentolĂłgiai jellege Ă©s idĆbeli lefolyĂĄsa jĂł korrelĂĄciĂłt mutat a BĂŒkkben megismerthez, de a medencĂ©kben felhalmozĂłdott törmelĂ©kben lĂ©nyeges eltĂ©rĂ©sek vannak. Ez az akkrĂ©ciĂłs komplexum törmelĂ©kanyagĂĄnak zömĂ©t szolgĂĄltatĂł felsĆ, kontinentĂĄlis lemez felĂ©pĂtĂ©sĂ©nek kĂŒlönbsĂ©gĂ©re vezethetĆ vissza. Az eredmĂ©nyek alĂĄtĂĄmasztjĂĄk a bĂŒkki, a mĂĄtrai-darnĂłi Ă©s a rudabĂĄnyai mezozoos összleteknek a DinaridĂĄkhoz kapcsolĂłdĂł eredeti helyzetĂ©t. | Study of sedimentological and stratigraphical characteristics of the Triassic and Jurassic basin and slope facies in North Hungary was the aim of the project. Elaboration of a new geodynamic synthesis and correlation with the coeval and genetically similar formations of the Dinarides and Hellenides were also in the focus of the project. The studies were performed in the BĂŒkk Mts., in the DarnĂł area, on cores drilled in the MĂĄtra Mts., and in the RudabĂĄnya Hills. For comparative analyses field studies were carried out in the Dinarides, Hellenides, in the Eastern Alps and Western Carpathians. Basic characteristics of the relics of the Neotethys accretionary complexes occur in the BĂŒkk, in the basement of the MĂĄtra and also in the DarnĂł area show good correspondence with those in the Dinarides and therefore their genetic conditions can be derived from the recently elaborated genetic models for the Dinarides. Although differences were pointed out in the composition of olistostromes encountered in the RudabĂĄnya Hills, and that in the BĂŒkk and MĂĄtra Mts., significant common features were also recognised. Sedimentological characteristics and timing of the subduction-related phenomena observed in the Northern Calcareous Alps can also be correlated with those in the BĂŒkk, but there are substantial differences in the composition of the clasts. This can be explained by the differences in the upper continental plate, source of dominant part of the clasts of the accretionary complex. The results support the concept on the Dinaridic relationship of the Mesozoic complexes of the BĂŒkk, MĂĄtra-DarnĂł and RudabĂĄnya Hills
Treatment of poor-risk myelodysplastic syndromes and acute myeloid leukemia with a combination of 5-azacytidine and valproic acid
5-azacytidine (AZA) has become standard treatment for patients with higher-risk myelodysplastic syndrome (MDS). Response rate is about 50% and response duration is limited. Histone deactylase (HDAC) inhibitors are attractive partners for epigenetic combination therapy. We treated 24 patients with AZA (100Â mg/m2, 5Â days) plus valproate (VPA; continuous dosing, trough serum level 80â110Â ÎŒg/ml). According to WHO classification, 5 patients had MDS, 2 had MDS/MPD, and 17 had acute myeloid leukemia (AML). Seven patients (29%) had previously received intensive chemotherapy, and five had previous HDAC inhibitor treatment. The overall response rate was 37% in the entire cohort but significantly higher (57%) in previously untreated patients, especially those with MDS (64%). Seven (29%) patients achieved CR (29%) and two PR (8%), respectively. Hematological CR was accompanied by complete cytogenetic remission according to conventional cytogenetics in all evaluable cases. Some patients also showed complete remission according to FISH on bone marrow mononuclear cells and CD34+ peripheral blood cells, as well as by follow-up of somatic mitochondrial DNA mutations. Four additional patients achieved at least marrow remissions. Factors influencing response were AML (vs. MDS), marrow blast count, pretreatment, transfusion dependency, concomitant medication with hydroxyurea, and valproic acid (VPA) serum level. This trial is the first to assess the combination of AZA plus VPA without additional ATRA. A comparatively good CR rate, relatively short time to response, and the influence of VPA serum levels on response suggest that VPA provided substantial additional benefit. However, the importance of HDAC inhibitors in epigenetic combination therapy can only be proven by randomized trials
Hypochromic red cells as a prognostic indicator of survival among patients with systemic sclerosis screened for pulmonary hypertension
BACKGROUND: Patients with systemic sclerosis (SSc) are frequently affected by iron deficiency, particularly those with pulmonary hypertension (PH). The first data indicate the prognostic importance of hypochromic red cells (% HRC) > 2% among patients with PH. Hence, the objective of our study was to investigate the prognostic value of % HRC in SSc patients screened for PH.
METHODS: In this retrospective, single-center cohort study, SSc patients with a screening for PH were enrolled. Clinical characteristics and laboratory and pulmonary functional parameters associated with the prognosis of SSc were analyzed using uni- and multivariable analysis.
RESULTS: From 280 SSc patients screened, 171 could be included in the analysis having available data of iron metabolism (81% female, 60 ± 13 years of age, 77% limited cutaneous SSc, 65 manifest PH, and 73 pulmonary fibrosis). The patients were followed for 2.4 ± 1.8 (median 2.4) years. HRC > 2% at baseline was significantly associated with worse survival in the uni- (p = 0.018) and multivariable (p = 0.031) analysis independent from the presence of PH or pulmonary parenchymal manifestations. The combination of HRC > 2% and low diffusion capacity for carbon monoxide (DLCO) †65% predicted was significantly associated with survival (p < 0.0001).
CONCLUSION: This is the first study reporting that HRC > 2% is an independent prognostic predictor of mortality and can possibly be used as a biomarker among SSc patients. The combination of HRC > 2% and DLCO †65% predicted could serve in the risk stratification of SSc patients. Larger studies are required to confirm these findings
Marathon-Induced Cardiac Strain as Model for the Evaluation of Diagnostic microRNAs for Acute Myocardial Infarction
Background: The current gold standard biomarker for myocardial infarction (MI), cardiac
troponin (cTn), is recognized for its high sensitivity and organ specificity; however, it lacks diagnostic
specificity. Numerous studies have introduced circulating microRNAs as potential biomarkers for
MI. This study investigates the MI-specificity of these serum microRNAs by investigating myocardial
stress/injury due to strenuous exercise. Methods: MicroRNA biomarkers were retrieved by compre hensive review of 109 publications on diagnostic serum microRNAs for MI. MicroRNA levels were
first measured by next-generation sequencing in pooled sera from runners (n = 46) before and after
conducting a full competitive marathon. Hereafter, reverse transcription quantitative real-time PCR
(qPCR) of 10 selected serum microRNAs in 210 marathon runners was performed (>10,000 qPCR
measurements). Results: 27 potential diagnostic microRNA for MI were retrieved by the literature
review. Eight microRNAs (miR-1-3p, miR-21-5p, miR-26a-5p, miR-122-5p, miR-133a-3p, miR-142-5p,
miR-191-5p, miR-486-3p) showed positive correlations with cTnT in marathon runners, whereas
two miRNAs (miR-134-5p and miR-499a-5p) showed no correlations. Upregulation of miR-133a-3p
(p = 0.03) and miR-142-5p (p = 0.01) went along with elevated cTnT after marathon. Conclusion: Some
MI-associated microRNAs (e.g., miR-133a-3p and miR-142-5p) have similar kinetics under strenuous
exercise and MI as compared to cTnT, which suggests that their diagnostic specificity could be lim ited. In contrast, several MI-associated microRNAs (miR-26a-5p, miR-134-5p, miR-191-5p) showed
different release behavior; hence, combining cTnT with these microRNAs within a multi-marker
strategy may add diagnostic accuracy in MI
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