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Myocardial Fibroblast Activation After Acute Myocardial Infarction: A Positron Emission Tomography and Magnetic Resonance Study.
J Am Coll Cardiol
November 2024
British Heart Foundation Centre of Research Excellence, the University of Edinburgh, Edinburgh, Scotland, United Kingdom.
Background: Myocardial fibrosis is a key healing response after myocardial infarction driven by activated fibroblasts. Gallium-68-labeled fibroblast activation protein inhibitor ([Ga]-FAPI) is a novel positron-emitting radiotracer that binds activated fibroblasts.
Objectives: The aim of this study was to investigate the intensity, distribution, and time-course of fibroblast activation after acute myocardial infarction.
"Combined synergistic effects of concentrated growth factors and adipose-derived mesenchymal stem cells on regeneration of induced mandibular defects in rabbits".
Cytotherapy
December 2024
Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Technology Innovation Center of Oral Health, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China. Electronic address:
Objective: This study aimed to evaluate the potential of combining allogeneic adipose-derived mesenchymal stem cells (ADSCs) with autologous concentrated growth factors (CGF) to enhance the repair of mandibular defects in rabbits.
Methods: Rabbit ADSCs were characterized using flow cytometry, identifying CD73, CD90, and CD105 as surface markers, while Alizarin Red Staining confirmed osteogenic differentiation, showing substantial mineralized deposits by day 21. A total of 24 New Zealand white rabbits were divided into four groups: BLANK (control group), CGF, ADSCs, and ADSCs/CGF.
Saliva Diagnostics in Spaceflight Virology Studies-A Review.
Viruses
December 2024
JES Tech, Human Health and Performance Directorate, Houston, TX 77058, USA.
Many biological markers of normal and disease states can be detected in saliva. The benefits of saliva collection for research include being non-invasive, ease of frequent sample collection, saving time, and being cost-effective. A small volume (≈1 mL) of saliva is enough for these analyses that can be collected in just a few minutes.
View Article and Find Full Text PDFDevelopment of a Large-Volume Concentration Method to Recover Infectious Avian Influenza Virus from the Aquatic Environment.
Viruses
December 2024
U.S. Geological Survey, Upper Midwest Water Science Center, 5840 Enterprise Drive, Lansing, MI 48911, USA.
Since late 2021, outbreaks of highly pathogenic avian influenza virus have caused a record number of mortalities in wild birds, domestic poultry, and mammals in North America. Wetlands are plausible environmental reservoirs of avian influenza virus; however, the transmission and persistence of the virus in the aquatic environment are poorly understood. To explore environmental contamination with the avian influenza virus, a large-volume concentration method for detecting infectious avian influenza virus in waterbodies was developed.
View Article and Find Full Text PDFMonitoring the Risk of Type-2 Circulating Vaccine-Derived Poliovirus Emergence During Roll-Out of Type-2 Novel Oral Polio Vaccine.
Vaccines (Basel)
November 2024
Bill & Melinda Gates Foundation, Seattle, WA 98109, USA.
Although wild poliovirus type 2 has been eradicated, the prolonged transmission of the live- attenuated virus contained in the type-2 oral polio vaccine (OPV2) in under-immunized populations has led to the emergence of circulating vaccine-derived poliovirus type 2 (cVDPV2). The novel OPV2 (nOPV2) was designed to be more genetically stable and reduce the chance of cVDPV2 emergence while retaining comparable immunogenicity to the Sabin monovalent OPV2 (mOPV2). This study aimed to estimate the relative reduction in the emergence risk due to the use of nOPV2 instead of mOPV2.
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