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Using tremendous photon statistics gained with the stray light aperture of the NuSTAR telescope over 11 years of operation, we set strong limits on the emission of close to monochromatic photons from the radiative decays of putative dark matter sterile neutrinos in the Milky Way. In the energy range of 3-20 keV covered by the NuSTAR, the obtained limits reach the bottom edge of theoretical predictions of realistic models where sterile neutrinos are produced in the early Universe. Only a small region is left to explore, if the sterile neutrinos form the entire dark matter component.
View Article and Find Full Text PDFThe CT findings of extranodal natural killer/T-cell lymphoma, nasal type involving the gastrointestinal tract.
Eur Radiol
January 2025
Department of Radiology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
Objectives: To analyze the CT imaging features of extranodal natural killer/T (NK/T)-cell lymphoma, nasal type (ENKTCL-NT) involving the gastrointestinal tract (GI), and to compare them with those of Crohn's disease (CD) and diffuse large B-cell lymphoma (DLBCL).
Materials And Methods: Data were retrospectively collected from 17 patients diagnosed with GI ENKTCL-NT, 68 patients with CD, and 47 patients with DLBCL. The CT findings of ENKTCL-NT were analyzed and compared with those of CD and DLBCL.
Impact of impaired renal function on kinetics of high-sensitive cardiac troponin following cardiac surgery.
Clin Res Cardiol
January 2025
Clinic for General and Interventional Cardiology/Angiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany.
Background: Impaired renal function can increase cardiac troponin levels due to reduced elimination, potentially affecting its diagnostic utility. Limited data exist on high-sensitivity cardiac troponin I (hs-cTnI) kinetics after cardiac surgery relative to renal function. This study evaluates how impaired renal function influences hs-cTnI kinetics following cardiac surgery, distinguishing between patients with and without postoperative myocardial infarction (PMI).
View Article and Find Full Text PDFFamily Size across the Life Course and Cognitive Decline in Older Mexican Adults.
J Gerontol B Psychol Sci Soc Sci
January 2025
College of Health Solutions, Arizona State University, Phoenix, AZ, USA.
Objectives: A growing body of research has identified associations between family size and cognition in older adults. These studies largely focus on older adults' own fertility history instead of sibship size, defined as one's number of siblings. Sibship size may impact cognitive development during early childhood, creating differences that may persist into late-life.
View Article and Find Full Text PDFThe Role of Environmental Factors Prior to Diagnosis on the Activity and Severity of Inflammatory Bowel Diseases-Results From the Prospective Population-Based Copenhagen Inflammatory Bowel Disease Inception Cohort.
United European Gastroenterol J
January 2025
Department of Gastroenterology and Hepatology, Copenhagen University Hospital - Herlev and Gentofte, Herlev, Denmark.
Background: The influence of environmental factors on the severity of early inflammatory bowel disease (IBD), including ulcerative colitis (UC) and Crohn's disease (CD), is unclear. Herein, we aimed to investigate the role of environmental factors in the initial phenotype, activity, and severity of IBD.
Methods: Copenhagen IBD Inception Cohort is a prospective population-based cohort of patients with newly diagnosed IBD between May 2021 and May 2023.
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