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41.
Damy T Kallvikbacka-Bennett A Goode K Khaleva O Lewinter C Hobkirk J Nikitin NP Dubois-Randé JL Hittinger L Clark AL Cleland JG 《Journal of cardiac failure》2012,18(3):216-225
BackgroundPrevalence, predictors, and prognostic value of right ventricular (RV) function measured by the tricuspid annular plane systolic excursion (TAPSE) in patients with chronic heart failure (CHF) symptoms with a broad range of left ventricular ejection fraction (LVEF) are unknown.Methods and ResultsOf 1,547 patients, mean (±SD) age was 71 ± 11 years, 48% were women, median (interquartile range [IQR]) TAPSE was 18.5 (14.0–22.7) mm, mean LVEF was 47 ± 16%, 47% had LVEF ≤45% and 67% were diagnosed with CHF, defined as systolic (S-HF) if LVEF was ≤45% and as heart failure with preserved ejection fraction (HFPEF) if LVEF was >45% and treated with a loop diuretic. During a median (IQR) follow-up of 63 (41–75) months, mortality was 34%. In multivariable analysis, increasing age, N-terminal pro–B-type natriuretic peptide (NT-proBNP), New York Heart Association functional class, right atrial volume index, and transtricuspid pressure gradient; lower TAPSE, diastolic blood pressure, and hemoglobin; and atrial fibrillation (AF) or COPD were associated with an adverse prognosis. Receiver operating characteristic curve analysis identified a TAPSE of 15.9 mm as the best prognostic threshold (P = .0001); 47% of S-HF and 20% of HFPEF had a TAPSE of <15.9 mm. The main associations with a TAPSE <15.9 mm were higher NT-proBNP, presence of atrial fibrillation and presence of LV systolic dysfunction.ConclusionsIn patients with CHF, low values for TAPSE are common, especially in those with reduced LVEF. TAPSE, unlike LVEF, was an independent predictor of outcome. 相似文献
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Ashot H. Gevorgyan Sergey S. Golik Nikolay A. Vanyushkin Ilya M. Efimov Mushegh S. Rafayelyan Hermine Gharagulyan Tatevik M. Sarukhanyan Meruzhan Z. Hautyunyan Gvidon K. Matinyan 《Materials》2021,14(9)
In our paper, the magneto-optical properties of a dichroic cholesteric liquid crystal layer with large values of magneto-optical parameter g and low values of dielectric permittivity were investigated. The solutions of the dispersion equation and their peculiarities were investigated in detail. The specific properties of reflection, transmission, absorption, rotation, ellipticity spectra and also the spectra of ellipticity and azimuth of eigen polarization were investigated. The existence of a tunable linear and nonreciprocal transmission band was shown. 相似文献
44.
Konstantinos Georgiou Nikolay A Belev Tilemachos Koutouratsas Hector Katifelis Maria Gazouli 《World journal of gastrointestinal pathophysiology》2022,13(3):59-72
Obesity is increasingly prevalent in the post-industrial era, with increased mortality rates. The gut microbiota has a central role in immunological, nutritional and metabolism mediated functions, and due to its multiplexity, it is considered an independent organ. Modern high-throughput sequencing techniques have allowed phylogenetic exploration and quantitative analyses of gut microbiome and improved our current understanding of the gut microbiota in health and disease. Its role in obesity and its changes following bariatric surgery have been highlighted in several studies. According to current literature, obesity is linked to a particular microbiota profile that grants the host an augmented potential for calorie release, while limited diversity of gut microbiome has also been observed. Moreover, bariatric surgery procedures represent effective interventions for sustained weight loss and restore a healthier microbiota, contributing to the observed fat mass reduction and lean mass increase. However, newer evidence has shown that gut microbiota is only partially recovered following bariatric surgery. Moreover, several targets including FGF15/19 (a gut-derived peptide), could be responsible for the favorable metabolic changes of bariatric surgery. More randomized controlled trials and larger prospective studies that include well-defined cohorts are required to better identify associations between gut microbiota, obesity, and bariatric surgery. 相似文献
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Release of active tissue factor by human arterial smooth muscle cells 总被引:11,自引:0,他引:11
Schecter AD Spirn B Rossikhina M Giesen PL Bogdanov V Fallon JT Fisher EA Schnapp LM Nemerson Y Taubman MB 《Circulation research》2000,87(2):126-132
Tissue factor (TF), the initiator of coagulation, is thought to function predominantly at the cell surface. Recent data have suggested that active TF is present extracellularly in atherosclerotic plaques, the arterial wall, and the blood. This study was conducted to determine whether smooth muscle cells (SMCs), a major source of arterial TF, could generate extracellular TF. Active TF accumulated in the medium of cultured human SMCs, representing approximately 10% of that measured in the underlying cells at 24 hours. Platelet-derived growth factor, phorbol ester, and tumor necrosis factor-alpha caused approximately 3-fold increases in TF activity in the medium. Release of TF into the medium was dependent on the presence of the TF transmembrane domain but not the cytoplasmic domain. Antibodies to TF precipitated most of the activity from the culture medium, whereas antibodies to the beta(1)-integrin subunit precipitated approximately 33% of the activity. Treatment with detergent or phosphatidylserine:phosphatidylcholine did not increase activity, suggesting that all TF released by SMCs was in the appropriate lipid milieu and not encrypted. Western blotting showed that the medium contained full-length TF protein. Fluorescent cytometry showed that extracellular TF was present largely in particles < or =200 nm, which had a density of 1.10 g/mL. We hypothesize that active extracellular TF found in the injured arterial wall and atherosclerotic plaques derives, in part, from SMC microparticles. 相似文献
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Banar Nikolay Bertels Jeroen Laurent François Boedi Rizky Merdietio De Tobel Jannick Thevissen Patrick Vandermeulen Dirk 《International journal of legal medicine》2020,134(5):1831-1841
International Journal of Legal Medicine - Staging third molar development is commonly used for age assessment in sub-adults. Current staging techniques are, at most, semi-automated and rely on... 相似文献
50.
Joshua Elliott Delphine Deryng Christoph Müller Katja Frieler Markus Konzmann Dieter Gerten Michael Glotter Martina Fl?rke Yoshihide Wada Neil Best Stephanie Eisner Balázs M. Fekete Christian Folberth Ian Foster Simon N. Gosling Ingjerd Haddeland Nikolay Khabarov Fulco Ludwig Yoshimitsu Masaki Stefan Olin Cynthia Rosenzweig Alex C. Ruane Yusuke Satoh Erwin Schmid Tobias Stacke Qiuhong Tang Dominik Wisser 《Proceedings of the National Academy of Sciences of the United States of America》2014,111(9):3239-3244