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Association between the NHHR and hepatic steatosis and liver fibrosis: a population-based study
Analysis of garlic intake on atrophic gastritis risk in different infectious states of Helicobacter pylori in a case-control study
Enhancing Robustness and Charge Transfer Kinetics of Sodium-Ion Batteries through Introduction of Anionic Anchoring Separators
Association between the triglyceride-glucose index and silent myocardial infarction in the general population
Abstract This study aimed to explore the relationship between the triglyceride-glucose (TyG) index and silent myocardial infarction (SMI) in the general population, with a focus on elucidating potential links and contributing to the understanding of risk factors for undetected cardiac events. This prospective cohort study was carried out within a community-based population, using data from the Atherosclerosis Risk in Communities study in the United States. The dataset included information on demographics, cardiovascular risk factors, blood lipids, liver and kidney function, and other variables. Participants were categorized into four quartiles based on their TyG index scores. Cox regression analysis was used to examine the relationship between the different ranges of TyG indices and SMI. In total, 14,211 community residents were enrolled and followed up for 36 years. Among them, 7,316 (51.48%) developed SMI. TyG index measurements were divided into quartiles: Q1 (≤ 8.26), Q2 (8.26–8.62), Q3 (8.62–9.02), and Q4 (≥ 9.02). Restricted cubic spline curves indicated that higher TyG indices correlated with a greater risk of SMI. Results of the Kaplan–Meier analysis suggested that participants with a higher TyG index had a lower cumulative survival rate for SMI (P < 0.001). Through multivariate Cox regression analysis, the TyG index was identified as an independent predictor of SMI risk (P < 0.001). Further stratified analyses reinforced the link between the TyG index and the risk of SMI, demonstrating its consistent influence across diverse population subsets. Mediation analysis revealed significant effects of hypertension, diabetes, body mass index and sex on SMI risk. The overall effect sizes ranged from 1.77 to 1.95, with direct effects accounting for 52.7–99.6% and mediation effects ranging from 0.4 to 47.3%. In the general population, the TyG index as an independent predictor of SMI risk, emphasizing its importance in cardiovascular disease assessment.
Unraveling the Structure and Properties of High-Concentration Aqueous Iron Oxide Nanocolloids Free of Steric Stabilizers
Immune molecule links COVID‑19 with severe inflammatory disorder in children
Noninvasive Vagus Nerve Electrical Stimulation for Immune Modulation in Sepsis Therapy
The Evolving Cerebellar and Cerebello-cortical Functional Connectivity Architecture during Infancy
The conventional understanding of the cerebellum as a sole movement control center has become obsolete, given its role in various higher-order functions, including cognition, emotion, and social processing. As these functions emerge during infancy, it is logical to assume that the cerebellum's functional organization evolve in tandem or preemptively to underpin these functions. However, the longitudinal development of the cerebellum's functional architecture during the crucial early years of infant life remains largely unexplored, highlighting a significant research gap. In this study, leveraging a large cohort of both male and female full-term (FT; n = 155) and preterm (PT; n = 67) infants, we aimed to delineate the development of within-cerebellum and cerebello-cortical functional connections during the first 2 years of life. Our findings highlight comprehensive functional synchronization within the neonatal cerebellum with a striking cortical projection focus on primary sensorimotor and visual cortices. While the within-cerebellum synchronization demonstrated early emergence in neonates and developmental stability during the initial 2 years, the cerebello-cortical projection patterns evolved dramatically, marked by specialization, shifting, and higher-order cortex integration, providing exciting evidence of the cerebellum's potential involvement in higher-order functions from infancy. Furthermore, PT infants exhibited decreased cerebello-cortical connectivity compared with their FT counterparts, suggesting potential developmental alterations. These findings collectively illustrate a dynamic growth pattern of cerebellar functional organization marked by both within-cerebellum stability and cerebello-cortical projection plasticity with significant implications for long-term cognitive and socioemotional development.
Synthesis and Structure of Uranium Disilyl-Substituted Alkylidene Complexes
Single-Molecule-Sensitive Three-Dimensional Atomic Heterostructures with Extreme Light-Matter Coupling
The brain’s building blocks for understanding social interactions
Chiral Cross-Linked Covalent Organic Framework Films for Highly Sensitive Circularly Polarized Luminescence Probing
Astrocyte Modulation of Synaptic Plasticity Mediated by Activity-Dependent Sonic Hedgehog Signaling
The influence of neural activity on astrocytes and their reciprocal interactions with neurons has emerged as an important modulator of synapse function. Astrocytes exhibit activity-dependent changes in gene expression, yet the molecular mechanisms by which neural activity is coupled to gene expression are not well understood. The molecular signaling pathway, Sonic hedgehog (Shh), mediates neuron–astrocyte communication and regulates the organization of cortical synapses. Here, we demonstrate that neural activity stimulates Shh signaling in cortical astrocytes and upregulates expression of Hevin and SPARC, astrocyte-derived molecules that modify synapses. Whisker stimulation in both male and female mice promotes activity-dependent Shh signaling selectively in the somatosensory, but not in the visual cortex, whereas sensory deprivation reduces Shh activity, demonstrating bidirectional regulation of the pathway by sensory experience. Selective loss of Shh signaling in astrocytes reduces expression of Hevin and SPARC and occludes activity-dependent synaptic plasticity. Taken together, these data identify Shh signaling as an activity-dependent, molecular signaling pathway that regulates astrocyte gene expression and promotes astrocyte modulation of synaptic plasticity.
Energy Threshold of Nonlinear Sulfur Solubility for Li–S Batteries
Dopant-Assisted Crystallization Enables Germanium Quantum Dots with Enhanced Product Yields and Optoelectronic Properties
Redox-Selective Macromolecular Electrolysis for Sequential Functionalization and Deconstruction
Uncovering the Role of Direct Electron Transfer in Plasmon-Mediated Electrochemical Reactions
Local Differences in Network Organization in the Auditory and Parietal Cortex, Revealed with Single Neuron Activation
The structure of local circuits is highly conserved across the cortex, yet the spatial and temporal properties of population activity differ fundamentally in sensory-level and association-level areas. In the sensory cortex, population activity has a shorter timescale and decays sharply over distance, supporting a population code for the fine-scale features of sensory stimuli. In the association cortex, population activity has a longer timescale and spreads over wider distances, a code that is suited to holding information in memory and driving behavior. We tested whether these differences in activity dynamics could be explained by differences in network structure. We targeted photostimulations to single excitatory neurons of layer 2/3, while monitoring surrounding population activity using two-photon calcium imaging. Experiments were performed in the auditory (AC) and posterior parietal cortex (PPC) within the same mice of both sexes, which also expressed a red fluorophore in somatostatin-expressing interneurons (SOM). In both cortical regions, photostimulations resulted in a spatially restricted zone of positive influence on neurons closely neighboring the targeted neuron and a more spatially diffuse zone of negative influence affecting more distant neurons (akin to a network-level “suppressive surround”). However, the relative spatial extents of positive and negative influence were different in AC and PPC. In PPC, the central zone of positive influence was wider, but the negative suppressive surround was more narrow than in AC, which could account for the larger-scale network dynamics in PPC. The more narrow central positive influence zone and wider suppressive surround in AC could serve to sharpen sensory representations.