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Visual activity enhances neuronal excitability in thalamic relay neurons.
Sci Adv
January 2025
Aix-Marseille Université, INSERM, UNIS, Marseille, France.
Amblyopia, a highly prevalent loss of visual acuity, is classically thought to result from cortical plasticity. The dorsal lateral geniculate nucleus (dLGN) has long been held to act as a passive relay for visual information, but recent findings suggest a largely underestimated functional plasticity in the dLGN. However, the cellular mechanisms supporting this plasticity have not yet been explored.
View Article and Find Full Text PDFDistributed representations of temporally accumulated reward prediction errors in the mouse cortex.
Sci Adv
January 2025
Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Road, Singapore 308232, Singapore.
Reward prediction errors (RPEs) quantify the difference between expected and actual rewards, serving to refine future actions. Although reinforcement learning (RL) provides ample theoretical evidence suggesting that the long-term accumulation of these error signals improves learning efficiency, it remains unclear whether the brain uses similar mechanisms. To explore this, we constructed RL-based theoretical models and used multiregional two-photon calcium imaging in the mouse dorsal cortex.
View Article and Find Full Text PDFAnillin tunes contractility and regulates barrier function during Rho flare-mediated tight junction remodeling.
Mol Biol Cell
January 2025
Department of Molecular, Cellular, and Developmental Biology; University of Michigan; Ann Arbor, Michigan, 48109; USA.
To preserve barrier function, cell-cell junctions must dynamically remodel during cell shape changes. We have previously described a rapid tight junction repair pathway characterized by local, transient activation of RhoA, termed "Rho flares", which repair leaks in tight junctions via promoting local actomyosin-mediated junction remodeling. In this pathway, junction elongation is a mechanical trigger that initiates RhoA activation through an influx of intracellular calcium and recruitment of p115RhoGEF.
View Article and Find Full Text PDFTranscriptome Analysis Reveals the Key Genes and Pathways for Growth, Ion Transport, and Oxidative Stress in Post-Larval Black Tiger Shrimp (Penaeus monodon) Under Acute Low Salt Stress.
Mar Biotechnol (NY)
January 2025
East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, 200090, China.
As an abiotic stress factor, salinity significantly affects the physiological activities of crustaceans. In this study, transcriptome sequencing was used to evaluate the mechanism of ion transport and the physiological response of black tiger shrimp (Penaeus monodon) under low salt stress. Four hundred post larval (PL) stage P.
View Article and Find Full Text PDFBioactive glass 45S5 promotes odontogenic differentiation of apical papilla cells through autophagy.
Hua Xi Kou Qiang Yi Xue Za Zhi
February 2025
Dept. of Cariology and Endodontics, Binzhou Medical University Hospital, Binzhou 256600, China.
Objectives: The mechanism of the odontogenic differentiation of apical papillary cells (APCs) stimulated by bioactive glass 45S5 is still unclear. This study aims to investigate the effect of autophagy on the odontogenic differentiation of APCs stimulated by bioactive glass 45S5.
Methods: APCs were isolated and cultured , and the cell origin was identified by flow cytometry.
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