Interpretation of deaths in hostile environments may be informed by postmortem microscopic examination of injured tissues. In context with their macroscopic correlates, the commonly observed histologic changes seen in environmental deaths are reviewed-these include exposure (i.e., hypothermia and hyperthermia), fire, electrocution, and water. Rarely observed pathognomonic findings are highlighted. While it may not yield specific findings, microscopic examination is one of the necessary steps of a thorough postmortem examination.
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http://dx.doi.org/10.1177/1925362118797739 | DOI Listing |
Elife
January 2025
Institute of Parasitology, Faculty of Agricultural and Environmental Sciences, McGill University, Montreal, Canada.
Paramyxovirus membrane fusion requires an attachment protein for receptor binding and a fusion protein for membrane fusion triggering. Nipah virus (NiV) attachment protein (G) binds to ephrinB2 or -B3 receptors, and fusion protein (F) mediates membrane fusion. NiV-F is a class I fusion protein and is activated by endosomal cleavage.
View Article and Find Full Text PDFJ Neurophysiol
January 2025
School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong Province, China.
Parkinson's disease (PD) is a prevalent and challenging neurodegenerative disorder, and may involve impaired autophagy. Nuclear factor erythroid-2-related factor 2 (Nrf2) is crucial for regulating autophagy-related genes, maintaining cellular homeostasis. Electroacupuncture (EA), a complementary and alternative therapy for PD, has gained widespread clinical application.
View Article and Find Full Text PDFMethods Mol Biol
January 2025
Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology Hellas, Heraklion, Crete, Greece.
Lineage tracing based on modern live imaging approaches enables to visualize, reconstruct, and analyze the developmental history, fate, and dynamic behaviors of cells in vivo in a direct, comprehensive, and quantitative manner. Light-sheet fluorescence microscopy (LSFM) has greatly boosted lineage tracing efforts, because fluorescently labeled specimens can be imaged in their entirety, over long periods of time, with high spatiotemporal resolution and minimal photodamage. In addition, an increasing arsenal of commercial and open-source software solutions for cell and nuclei segmentation and tracking can be employed to convert data from pixel-based to object-based representations, and to reconstruct the lineages of cells in their native context as they organize in tissues, organs, and whole organisms.
View Article and Find Full Text PDFMethods Mol Biol
January 2025
Stowers Institute for Medical Research, Kansas City, MO, USA.
Understanding the spatial and temporal dynamics of gene expression is crucial for unraveling molecular mechanisms underlying various biological processes. While traditional methods have offered insights into gene expression patterns, they primarily focus on mature mRNA transcripts, lacking real-time visualization of newly synthesized or nascent transcription events. Recent advancements in monitoring nascent transcription in live cells provide valuable insights into transcriptional dynamics.
View Article and Find Full Text PDFMethods Mol Biol
January 2025
Institut de Génomique Fonctionnelle de Lyon (IGFL), UMR5242, Ecole Normale Supérieure de Lyon (ENSL), CNRS, Université de Lyon, Lyon, France.
Bimolecular Fluorescence Complementation (BiFC) is a powerful molecular imaging method used to visualize protein-protein interactions (PPIs) in living cells or organisms. BiFC is based on the reassociation of hemi-fragments of a monomeric fluorescent protein upon spatial proximity. It is compatible with conventional light microscopy, providing a resolution that is constrained by the diffraction of light to around 250 nm.
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