Multifunctions of Sustainable Chondroitin Sulfates with Predominant Subtypes and Low Molecular Weights on Neurite Outgrowth.

Three chondroitin sulfate (CS) analogues with predominant subtypes (A, C, and E) were prepared from engineered K4 combined with regioselective sulfation. CS with the designed sulfates as the main components was characterized by nuclear magnetic resonance spectroscopy, elementary analysis, and disaccharide analysis. CS prepared from the native or degraded capsular polysaccharide had molecular weights of 1.

The relationship between social media fatigue and online trolling behavior among college students: the mediating roles of relative deprivation and hostile attribution bias.

Based on the General Aggression Model (GAM), this study explores the relationship between social media fatigue and online trolling behavior among Chinese college students, focusing on the mediating roles of relative deprivation and hostile attribution bias as key affective and cognitive mechanisms proposed by GAM. Using a cross-sectional survey design, data were collected from 349 college students from Guangdong via an online questionnaire. Key variables, including social media fatigue, relative deprivation, and hostile attribution bias, were measured using validated scales: the SNS Fatigue Questionnaire, the Personal Relative Deprivation Scale, the Word Sentence Association Paradigm for Hostility, and the revised Global Assessment of Internet Trolling.

Microbial Production of Ectoine: A Review.

Ectoine is an important natural secondary metabolite widely used in biomedical fields, novel cosmetics development, and the food industry. Due to the increasing market demand for ectoine, more cost-effective production methods are being explored. With the rapid development of synthetic biology and metabolic engineering technologies, the production of ectoine using traditional halophilic bacteria is gradually being replaced by higher-yielding and environmentally friendly nonhalophilic engineered strains.

Pragmatic performance, its relationship with symptom severity, and early clinical predictors of pragmatics in 5 ~ 6-year-old children with autism spectrum disorder.

Background: Pragmatic language refers to using spoken language to convey messages effectively across diverse social communication contexts. However, minimal longitudinal research has focused on defining early predictors of pragmatic development in children with autism spectrum disorder (ASD).

Methods: In the present study, 71 children with ASD and 38 age- and gender- matched 24- to 30-month-old typically developing (TD) children were enrolled.

PEDRA-EFB0: colorectal cancer prognostication using deep learning with patch embeddings and dual residual attention.

In computer-aided diagnosis systems, precise feature extraction from CT scans of colorectal cancer using deep learning is essential for effective prognosis. However, existing convolutional neural networks struggle to capture long-range dependencies and contextual information, resulting in incomplete CT feature extraction. To address this, the PEDRA-EFB0 architecture integrates patch embeddings and a dual residual attention mechanism for enhanced feature extraction and survival prediction in colorectal cancer CT scans.

Overexpressed CD73 attenuates GSDMD-mediated astrocyte pyroptosis induced by cerebral ischemia-reperfusion injury through the A2B/NF-κB pathway.

Ischemic stroke, resulting from the blockage or narrowing of cerebral vessels, causes brain tissue damage due to ischemia and hypoxia. Although reperfusion therapy is essential to restore blood flow, it may also result in reperfusion injury, causing secondary damage through mechanisms like oxidative stress, inflammation, and excitotoxicity. These effects significantly impact astrocytes, neurons, and endothelial cells, aggravating brain injury and disrupting the blood-brain barrier.

Metabolic engineering of Escherichia coli BL21(DE3) cocultured with glucose and xylose for efficient production of 2'-fucosyllactose.

2'-Fucosyllactose (2'-FL) is the most abundant human milk oligosaccharide (HMO) and has been approved to be commercially added to infant formula. Microbial synthesis from exogenous lactose via metabolic engineering is currently the major approach to production of 2'-FL. Replacement of lactose with cheaper sugars such as glucose and sucrose has been studied to reduce the production costs.

Antigenicity evaluation of the synthetic trisaccharides related to Plesiomonas shigelloides serotype O51 O-antigen containing an acetamidino group.

Bacterial surface polysaccharides are widely decorated with diverse rare functional groups. An understanding of the role of these functional groups in immunological activity of the glycans is required for the development of carbohydrate-based treatment against bacterial infectious diseases. Here, the antigenicity evaluation of synthetic trisaccharide 1 related to Plesiomonas shigelloides serotype O51 lipopolysaccharide (LPS) O-antigen and its acetamido derivative 2 was achieved to elucidate the immunological importance of O-antigen structure.

Inhibition of cap-dependent endonuclease in influenza virus with ADC189: a pre-clinical analysis and phase I trial.

ADC189 is a novel drug of cap-dependent endonuclease inhibitor. In our study, its antiviral efficacy was evaluated in vitro and in vivo, and compared with baloxavir marboxil and oseltamivir. A first-in-human phase I study in healthy volunteers included single ascending dose (SAD) and food effect (FE) parts.

Mapping Dynamic Protein Clustering with AIEgen-Active Chemigenetic Probe.

Protein clustering/disassembling is a fundamental process in biomolecular condensates, playing crucial roles in cell fate decision and cellular homeostasis. However, the inherent features of protein clustering, especially for its reversible behavior and subtle microenvironment variation, present significant hurdles in probe chemistry for tracking protein clustering dynamics. Herein, we report a bilateral-tailored chemigenetic probe, in which an "amphiphilic" AIEgen QMSO3Cl is covalently conjugated to a protein tag that is genetically fused to protein-of-interest (POI).

The impact of a high-carbohydrate diet on the cognitive behavior of mice in a low-pressure, low-oxygen environment.

The effectiveness of high-carbohydrate diets (HCD) on cognitive impairment is still being debated. To clarify the impact of HCD on the cognitive behavior of mice under low-pressure hypoxic conditions, we studied 24 mice in different environments while subjecting them to dietary intervention for 5 weeks, and conducting behavioral tests. Under low-pressure hypoxic conditions, HCD intervention reversed the decline in spatial learning and memory abilities in mice caused by hypoxia, ameliorated pathological brain damage, and restored the integrity of the intestinal mucosa.

Web-based cognitive interventions on subjective cognitive impairment in cancer survivors: A systemic review.

Objective: Cancer survivors have experienced subjective cognitive impairment (SCI) when they received cancer diagnoses or treatments. Their psychosocial and emotional statuses were also impacted. With the advancement of web technologies, web-based cognitive interventions have been implemented in the management and the alleviation of the SCI, the psychosocial distress, and the emotional distress in cancer survivors.

Characterization of mutant and its application in heterologous lipase expression.

The expression system has been developed into a chassis for the production of heterologous lipases, attributed to its strong capabilities in protein production and secretion, robust post-translational modifications, and favourable safety profile. However, the system's relatively low expression levels remain a challenge, hindering its ability to meet the increasing demands of large-scale production. Strain C19, screened by high-throughput methods combining droplet microfluidics and flow cytometry, was demonstrated to be a potential chassis cell based on fermentation kinetic analysis and transcriptome sequencing.

Cheminformatics Exploration of Structural Physicochemical Properties, Molecular Fingerprinting, and Diversity of the Chemical Space of Compounds from Betel Nut ( L.).

In this work, the characterization and diversity of 347 compounds from betel nut ( L.) were analyzed for the first time. The dataset of compounds from betel nut (BNC) was compared to compounds from food.

Inhibition of Hepatitis B Virus Replication by a Novel GalNAc-siRNA In Vivo and In Vitro.

Current antiviral therapy for the chronic hepatitis B virus (HBV) has a low clinical cure rate, high administration frequency, and limited efficacy in reducing HBsAg levels, leading to poor patient compliance. Novel agents are required to achieve HBV functional cure, and reduction of HBV antigenemia may enhance the activation of effective and long-lasting host immune control. HT-101 is a siRNA currently in phase I clinical trials with promising prospects for future applications.

Tunable Cluster Luminescence and High Quantum Yield in Amine-Modified Maleic Anhydride Polymers.

Cluster luminescent materials (CLgens) with nonconjugated structures have attracted considerable attention. However, their low quantum yield and limited emission wavelengths, which are confined to the blue-green spectrum, continue to restrict their applicability. In this study, maleic anhydride polymer chains were modified with -tristyrylene-1,2-diamine (TPM-NH), creating a secondary donor-acceptor structure through freely rotatable phenyl groups and amino-anhydride interactions.

Fungi on the cuticle surface increase the resistance of Aedes albopictus to deltamethrin.

Aedes albopictus (Ae. albopictus) is widely distributed and can transmit many infectious diseases, and insecticide-based interventions play an important role in vector control. However, increased insecticide resistance has become a severe public health problem, and the clarification of its detailed mechanism is a matter of urgence.

Multiple Exciton Generation on Doped Wide-Band Semiconductor Photoanode with Hierarchical Quantum Structure.

The multiple exciton generation (MEG) effect, which produces multiple photo-generated charge carriers from a single high-energy photon absorption by a semiconductor with a narrow bandgap, has the potential to revolutionize photovoltaic, photoelectric detection, and other technologies. Here, this work finds that the surface carbon-modified wide-bandgap photoanode with hierarchical quantum structure can drive a photoelectrochemical reaction with a quantum efficiency exceeding 145% by the first time. More studies reveal that the presence of the MEG effect in the MEG-CdS photoanode is attributed to the formation of high-quality surface C-modified CdS quantum nanosheets on CdS bulk film by in situ, this hierarchical quantum structure leads to quantum confinement effects that increase effective Coulomb interaction for driving MEG and decrease competition for thermal exciton cooling.

Janus Protein Nanoparticles Tailoring Bicontinuous Aerogels for Efficient Heavy Metal Ion Absorption.

Bicontinuous structures are exquisite interpenetrating constructs with an optimal balance between connectivity and surface area. Such unique geometry favors exceptional mechanical properties and efficient inward mass diffusion essential for an absorbent material. Although bicontinuous structures are found across many length scales in nature, synthesizing artificial analogs using biological building blocks remains largely unexplored.

An intelligent fruit freshness monitoring system using hydrophobic indicator labels based on methylcellulose, k-carrageenan, and sodium tripolyphosphate, combined with deep learning.

As the demand for food quality and safety continues to rise, pH-responsive intelligent packaging technologies have found widespread application in the monitoring of food freshness. This study introduces a methylcellulose (MC)-based indicator label designed for real-time monitoring of fruit freshness. To enhance the label's structural integrity, mechanical properties, and hydrophobicity, k-carrageenan (KC) and sodium tripolyphosphate (STPP) were incorporated as crosslinkers to form a stable three-dimensional network structure.

MOTS-c mimics remote ischemic preconditioning in protecting against lung ischemia-reperfusion injury by alleviating endothelial barrier dysfunction.

Remote ischemic preconditioning (RIPC) induces the expression of unidentified protective cytokines that mitigate lung ischemia-reperfusion injury (LIRI). This study hypothesizes that MOTS-c, a mitokine with potent protective effects against mitochondrial damage, contributes to RIPC-mediated protection by alleviating endothelial barrier dysfunction. In human lung transplantation patients, serum levels of MOTS-c significantly decreased following IR injury but were markedly increased when RIPC was performed prior to transplantation.

Colloidal gold immunochromatographic assay for the detection of total aflatoxins in cereals.

Aflatoxins (AFTs) are highly carcinogenic and mainly contaminate cereals. In this study, we designed and screened a hapten by analyzing the same characteristic groups of AFTs (AFB, AFB, AFG and AFG), prepared a monoclonal antibody (mAb) 4C11 with a high sensitivity and specificity that can simultaneously detect all the main AFTs, and established a colloidal gold immunochromatographic assay (CG-ICA) for the detection of AFTs in cereals. The limits of detection (LODs) were 0.

Spotlight on the long-term effects of micro/nanoplastics exposure on Spirulina platensis: Algal cells, extracellular polymeric substances, and phycocyanin.

Spirulina platensis (SP) provides humans with proteins and natural pigments. The effects of micro/nanoplastics (MNPs) on SP are of great interest. We focused on the effects of high concentrations (100-300 mg/L) of polystyrene MNPs on SP for 50 days.

In situ surface oxygen vacancy effect synergistic with internal polarization effect in BiFeO for photoelectrochemical detection of T4 DNA ligase.

Recently, the field of cathode photoelectrochemistry has advanced significantly, yet there remained a dearth of innovative approaches in signal transmission strategies. This paper introduced a novel concept where the dopamine (DA)-engineered surface vacancy (Ov) effect on BiFeO microspheres synergistically interacted with the intrinsic polarization of the material, leading to a significantly enhanced photocurrent when compared to that of BiO or FeO alone without a built-in electric field. Based on this finding, we proposed a PEC biosensor that leveraged the competitive binding reaction between single-base nucleotides and DA for photocurrent output, wherein the T4 DNA ligase-mediated ligation reaction governed the production of single-base nucleotides.

Debranched rice starch with highly enriched B1 chains enhanced the encapsulation of aroma molecules.

Three debranched rice starch (DBS) with varying chain lengths were isolated in the hydrolysate solution-to-ethanol ratio of 1:3, 1:1.5, and 1:0, which were named as DBS1:3, DBS1:1.5, and DBS1:0, respectively.