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Methamphetamine-mediated astrocytic pyroptosis and neuroinflammation involves miR-152-NLRP6 inflammasome signaling axis.
Redox Biol
January 2025
Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198-5880, USA. Electronic address:
Methamphetamine is a widely abused drug associated with significant neuroinflammation and neurodegeneration, mainly through the activation of glial cells and neurons in the central nervous system. This study investigates the role of the astrocyte-specific NOD-like receptor family pyrin domain-containing protein 6 (NLRP6) inflammasome in methamphetamine-induced astrocytic pyroptosis and neuroinflammation. Our findings demonstrate that methamphetamine exposure induces NLRP6-dependent pyroptosis, astrocyte activation, and the release of proinflammatory cytokines in mouse primary astrocytes.
View Article and Find Full Text PDFGeometry of obstructed pathway regulates upstream navigational pattern of sperm population.
Lab Chip
January 2025
Department of Food Science and Technology, Cornell University, Ithaca, NY 14853, USA.
Sperm navigation through the complex microarchitecture of the fallopian tube is essential for successful fertilization. Spatiotemporal structural alteration due to folded epithelium or muscle contractions in the fallopian tube changes the geometry of the sperm pathways. The role of structural complexity in sperm navigational patterns has been investigated for single sperm cells but has not been fully addressed at the population level.
View Article and Find Full Text PDFLitR and its quorum-sensing regulators modulate biofilm formation by .
J Bacteriol
January 2025
Department of Microbiology and Immunology, Stritch School of Medicine Loyola University Chicago, Chicago, Illinois, USA.
Quorum sensing controls numerous processes ranging from the production of virulence factors to biofilm formation. Biofilms, communities of bacteria that are attached to one another and/or a surface, are common in nature, and when they form, they can produce a quorum of bacteria. One model system to study biofilms is the bacterium , which forms a biofilm that promotes the colonization of its symbiotic host.
View Article and Find Full Text PDFImpact of cascade reservoir on the sources of organic matter in sediments of Lancang river.
iScience
January 2025
Technology R&D Center, Huaneng Lancang River Hydropower Inc., Kunming 650000, China.
The construction of dams to intercept natural rivers constitutes the most severe human activity influencing the underlying surface. This study focuses on four cascade reservoirs of the Lancang River and explores their impact on the migration of organic matter in sediments. The research reveals significant spatial variations in total organic carbon (TOC) and total nitrogen concentrations in the sediments of the four reservoirs.
View Article and Find Full Text PDFReference genome provide insights into sex determination of silver aworana (Osteoglossum bicirrhosum).
BMC Biol
January 2025
Key Laboratory of Prevention and Control for Aquatic Invasive Alien Species, Ministry of Agriculture and Rural Affairs, Guangdong Modern Recreational Fisheries Engineering Technology Center, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China.
Background: Silver arowana (Osteoglossum bicirrhosum) is a basal fish species with sexual monomorphism, while its sex determination mechanism has been poorly understood, posing a significant challenge to its captive breeding efforts.
Results: We constructed two high-quality chromosome-level genome assemblies for both female and male silver arowana, with scaffold N50 values over 10 Mb. Combining re-sequencing data of 109 individuals, we identified a female-specific region, which was localized in a non-coding region, i.
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