Publications by authors named "Matthias Duebgen"

During the first months of the coronavirus disease 2019 (COVID-19) pandemic in early 2020, Google Trends data in the United States showed a strong increase in search query frequency for chest pain symptoms despite a concurrent decrease in search interest for myocardial infarction. This suggests a reduced attention to acute coronary syndrome (ACS) and chest pain as its main symptom during this time period. These observations could help explain why cardiovascular mortality rose dramatically despite a strong decrease in hospitalisation rates for ACS.

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Objective: To evaluate interest in coronary artery calcium (CAC) among the general public during the past 17 years and to compare trends with real-world data on number of CAC procedures performed.

Methods: We used Google Trends, a publicly available database, to access search query data in a systematic and quantitative fashion to search for CAC-related key terms. Search terms included , , , , and .

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Objectives: This study sought to quantify and model conversion of a normal coronary artery calcium (CAC) scan to an abnormal CAC scan.

Background: Although the absence of CAC is associated with excellent prognosis, progression to CAC >0 confers increased risk. The time interval for repeated scanning remains poorly defined.

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Background Coronary artery calcium (CAC) is a predictor for the development of cardiovascular disease (CVD) and to a lesser extent cancer. The age- and sex-specific relationship of CAC with CVD and cancer mortality is unknown. Methods and Results Asymptomatic patients aged 40 to 75 years old without known CVD were included from the CAC Consortium.

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Background: The current treatment regimen for malignant glioblastoma multiforme (GBM) is tumor resection followed by chemotherapy and radiation therapy. Despite the proven safety of oncolytic herpes simplex virus (oHSV) in clinical trials for GBMs, its efficacy is suboptimal mainly because of insufficient viral spread after tumor resection.

Methods: Human mesenchymal stem cells (MSC) were loaded with oHSV (MSC-oHSV), and their fate was explored by real-time imaging in vitro and in vivo.

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The lack of relevant pre-clinical animal models incorporating the clinical scenario of Glioblastoma multiforme (GBM) resection and recurrence has contributed significantly to the inability to successfully treat GBM. A multi-modality imaging approach that allows real-time assessment of tumor resection during surgery and non-invasive detection of post-operative tumor volumes is urgently needed. In this study, we report the development and implementation of an optical imaging and magnetic resonance imaging (MRI) approach to guide GBM resection during surgery and track tumor recurrence at multiple resolutions in mice.

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