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Synchronization in spiking neural networks with short and long connections and time delays.
Chaos
January 2025
Institut de Neurosciences des Systèmes, Aix-Marseille University, INSERM, Marseille 13005, France.
Article Synopsis
- Synchronization in brain networks is crucial for processing information, but time delays in signal transmission can significantly influence this process, especially in more complex spiking neural networks.
- The study involves investigating synchronization conditions and dynamics in a two-dimensional network of adaptive exponential integrate-and-fire neurons, focusing on how delay impacts this behavior.
- Findings reveal that synchronization patterns depend on a combination of properties at different levels, including individual neuron characteristics, network connectivity, and long-range connections, which together affect the emergent activity patterns in the brain.
Chemical composition, antibacterial and antioxidant activities of Piper betle and Anethum graveolens essential oils against Methicillin-resistant Staphylococcus aureus clinical isolates.
Braz J Microbiol
January 2025
Amity Institute of Biotechnology, Amity University Uttar Pradesh, Sector-125, Noida, Uttar Pradesh, 201313, India.
Methicillin-resistant Staphylococcus aureus (MRSA) is one of the leading causes of infection worldwide due to its antimicrobial resistance. Plant-derived essential oils (EOs) have undergone extensive observational and clinical research to explore their antimicrobial properties. The present study aimed to check mec A positive MRSA isolates using sequencing analysis, determination of chemical composition using gas chromatography-mass spectroscopy (GC-MS), antioxidant, and antimicrobial activity of Anethum graveolens and Piper betle EOs against the infectious agent MRSA.
View Article and Find Full Text PDFCharacterizing Antisense Oligonucleotide-Induced Histopathology Findings in Spinal Cord of Mauritius Cynomolgus Monkeys by Molecular Localization Investigation.
Toxicol Pathol
January 2025
Novartis Institute for Biomedical Research, Cambridge, Massachusetts, USA.
The safety of a 2'--methoxyethyl antisense oligonucleotide (ASO) was investigated in Mauritius cynomolgus monkeys in a 41-week Good Laboratory Practice (GLP) toxicity study after multiple intrathecal (IT) administrations. Histopathological examination revealed ectopic formation of lymphoid follicles in the spinal cord (SC) at the injection site at all doses and the presence of granular material in neurons of the SC in high-dose animals. The granular material was seen in all the segments of the SC, but mainly in the lumbar segment and persisted at the end of the 26-week recovery period, while the lymphoid follicles showed a reversibility trend.
View Article and Find Full Text PDFProximity proteomics provides a new resource for exploring the function of Afadin and the complexity of cell-cell adherens junctions.
Biol Open
February 2025
Department of Biology, University of North Carolina at Chapel Hill, CB#3280, Chapel Hill, NC 27599-3280, USA.
The network of proteins at the interface between cell-cell adherens junctions and the actomyosin cytoskeleton provides robust yet dynamic connections that facilitate cell shape change and motility. While this was initially thought to be a simple linear connection via classic cadherins and their associated catenins, we now have come to appreciate that many more proteins are involved, providing robustness and mechanosensitivity. Defining the full set of proteins in this network remains a key objective in our field.
View Article and Find Full Text PDFIntratumor microbiome-derived butyrate promotes chemo-resistance in colorectal cancer.
Front Pharmacol
January 2025
Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Introduction: Colorectal cancer (CRC) is a leading cause of cancer-related mortality globally. Although tumor immunotherapy is widely recognized for treating unresectable CRC, challenges such as ineffective immunotherapy and drug resistance remain prevalent. While intratumor microbiome-derived butyrate has been implicated in promoting lung cancer metastasis, its role in CRC chemoresistance is not well understood.
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