Publications by authors named "Chen Qu"

Background: Clostridium butyricum is a probiotic widely used in animal husbandry, and there is evidence to suggest that it can alleviate intestinal inflammation in pigs and may be related to its lipoteichoic acid (LTA), but the mechanism is still unclear.

Objective: This study aimed to determine the regulatory effect and potential mechanism of C. butyricum LTA on LPS-stimulated inflammation in intestinal porcine epithelial line-J2 (IPEC-J2).

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Despite the development of digital health infrastructure, female health inequalities have worsened during the pandemic. This transdisciplinary study, through health, feminist, and infrastructural geographical lens, examines how gender health inequalities may have emerged or worsened during Covid-19 in the UK. This study leverages a novel web archive collection, Python coding-powered data-handling text analysis (of over 0.

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GABA (γ-aminobutyric acid) is a non-protein amino acid that occurs naturally in the human brain, animals, plants and microorganisms. It is primarily produced by the irreversible action of glutamic acid decarboxylase (GAD) on the α-decarboxylation of L-glutamic acid. As a major neurotransmitter in the brain, GABA plays a crucial role in behavior, cognition, and the body's stress response.

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Tire and road wear particles (TRWPs) are an appreciable source of microplastics (MPs); however, knowledge of their large-scale occurrence and mass flux based on robust sampling and quantification is limited. Herein, the first city-wide survey of TRWPs across environmental compartments (road dust, snowbank, water, and sediment from rivers and lakes) along four ring roads (beltways) in Beijing was performed. TRWP concentrations ( = 74) were quantified using bonded-sulfur as a marker to reveal the city-wide spatial distributions and adopted to establish a framework estimating TRWP emission factors (EFs) and mass flux from generation to remote atmospheric, terrestrial, and aquatic transport.

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Diarrhea poses a significant threat to the health and well-being of weaned piglets, leading to substantial morbidity and mortality and economic loss in the pig industry. However, the structural characteristics of the gut microbiota and the key genera associated with early diarrhea in piglets within large-scale production systems are poorly understood. This study aimed to investigate the differences in the microbial community structure and the specific genera alteration between the healthy piglets and diarrhea piglets, and to identify the biomarkers of gut microbiota associated with diarrhea in piglets.

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Hydrocarbons are the central feedstock of fuels, solvents, lubricants, and the starting materials for many synthetic materials, and thus the physical properties of hydrocarbons have received intense study. Among these, the molecular flexibility and the power and infrared spectroscopies are the focus of this paper. These are examined for the linear alkane CH using molecular dynamics (MD) calculations and recent machine-learned potentials.

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Background: Myofibroblasts constitute a significant component of the tumor microenvironment (TME) and play a pivotal role in the progression of hepatocellular carcinoma (HCC). Integrin α5 (ITGA5) is a crucial regulator in myofibroblasts of malignant tumors. Therefore, the potential of ITGA5 as a novel target for the therapeutic strategy of HCC should be investigated.

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The rovibrational level populations, and subsequent emission in various astrophysical environments, are driven by inelastic collision processes. The available rovibrational rate coefficients for water have been calculated using a number of approximations. We present a numerically exact calculation for the rovibrational quenching for all water vibrational modes due to collisions with atomic hydrogen.

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Cell surface scavenger receptors contribute to homoeostasis and the response to pathogens and products associated with damage by binding to common molecular features on a wide range of targets. Apoptosis inhibitor of macrophage (AIM/CD5L) is a soluble protein belonging to the scavenger receptor cysteine-rich (SRCR) superfamily that contributes to prevention of a wide range of diseases associated with infection, inflammation, and cancer. AIM forms complexes with IgM pentamers which helps maintain high-levels of circulating AIM in serum for subsequent activation on release from the complex.

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Article Synopsis
  • Sodium hypochlorite (NaClO), commonly used during the COVID-19 pandemic, can enter aquatic ecosystems through wastewater discharge and was studied for its effects on larval zebrafish.
  • Exposure to 300 μg/L NaClO for 7 days increased the expression of specific genes and caused significant changes in lipid profiles, decreasing levels of triglycerides, phosphatidylethanolamines, and diglycerides.
  • The study identified over 700 differentially expressed genes, mainly linked to lipid and glycometabolism, highlighting the potential toxic effects of chlorine disinfectants on aquatic life.
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Hydrocarbons are ubiquitous as fuels, solvents, lubricants, and as the principal components of plastics and fibers, yet our ability to predict their dynamical properties is limited to force-field mechanics. Here, we report two machine-learned potential energy surfaces (PESs) for the linear 44-atom hydrocarbon CH using an extensive data set of roughly 250,000 density functional theory (DFT) (B3LYP) energies for a large variety of configurations, obtained using MM3 direct-dynamics calculations at 500, 1000, and 2500 K. The surfaces, based on Permutationally Invariant Polynomials (PIPs) and using both a many-body expansion approach and a fragmented-basis approach, produce precise fits for energies and forces and also produce excellent out-of-sample agreement with direct DFT calculations for torsional and dihedral angle potentials.

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Eriocheir sinensis (Chinese mitten crab) is one of the main economic species in China, which has evolved an extremely sophisticated innate immune system to fend off disease invasions. However, bacterial and viral infections have caused significant financial losses for the E. sinensis aquaculture in recent years.

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Article Synopsis
  • Advances in machine learning have led to potentials that combine first-principles accuracy with faster evaluations, specifically using Δ-machine learning to enhance potential energy surfaces (PES) based on low-level methods like DFT.
  • The study showcases successes with various molecules, demonstrating that the approach can achieve near-coupled cluster accuracy while testing its effectiveness using different functionals like PBE and M06 with ethanol as a case study.
  • Results indicate significant optimizations in DFT gradients without needing coupled cluster corrections, and the findings highlight potential applications for improving molecular mechanics force fields.
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The experimental observation of hydroxymethylene, HCOH, following excitation of methanol at 193 nm, was reported recently (Hockey, E. K.; McLane, N.

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  • - The study evaluates the effectiveness of an AI-based real-time dynamic ultrasound imaging system for diagnosing small breast lesions (≤10mm) using the BI-RADS classification.
  • - In a sample of 291 lesions, the system achieved a high diagnostic accuracy (AUC of 0.833), with better sensitivity using the >BI-RADS 3 threshold compared to >BI-RADS 4A, but lower specificity.
  • - The findings suggest that the AI ultrasound system offers promising tools for early breast cancer detection and could enhance patient outcomes, although it still presents some inconsistencies in specific measures.
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Background: A high body mass index (BMI) increases the risk of hypertension. However, little is known about the dose-dependent association between BMI and hypertension. Therefore, this study investigated the prevalence of hypertension in 7568 subjects from the Jiangsu Province, Eastern China, and analyzed the dose-response relationship between BMI and hypertension risk.

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  • The study explores how decision-making in competitive and cooperative social situations is influenced by the information available in that context.
  • Using the Chicken Game, researchers examined how different levels of information about opponents (like their competitiveness and behavior patterns) affect participants' choices.
  • Findings revealed that individuals adapt more slowly to highly competitive opponents while adjusting quickly to cooperative ones, indicating that the speed of learning and information processing can vary significantly based on the social scenario.
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  • Oral cancer significantly impacts health and can be fatal, but Astragaloside IV (AS-IV), derived from Astragalus membranaceus, shows promise for cancer treatment.
  • The study found that higher doses of AS-IV reduced cell growth and inhibited processes like migration, invasion, and epithelial-mesenchymal transition (EMT) in oral cancer.
  • AS-IV was found to enhance autophagy and modulate key cellular pathways (AMPK and AKT/mTOR), suggesting it could be a viable therapeutic option for oral cancer.
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Objectives: There is limited evidence on the effectiveness of parenting interventions to improve disruptive behaviour in children with intellectual developmental disabilities. This clinical trial evaluated whether an adapted group parenting intervention for preschool children with intellectual developmental disabilities who display challenging behaviour is superior to treatment as usual in England.

Study Design: 261 children aged 30-59 months with moderate to severe intellectual developmental disabilities and challenging behaviour were randomised to either the intervention (Stepping Stones Triple P) and treatment as usual or treatment as usual alone.

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  • The study created a detailed genetic catalog of duck gut microbes, analyzing 375 samples from four breeds and five intestinal segments, uncovering around 24 million genes and 4,437 genomes.
  • It found that the gut microbiota evolves from a different composition in newly hatched ducks to a more stable community as they grow, with variations between the foregut and hindgut.
  • Ducks raised with free access to water showed increased harmful bacteria and antibiotic-resistance genes, suggesting that rearing conditions significantly influence duck gut health and production outcomes.
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  • Recent advancements in biosensors using odorant-binding proteins (OBPs) allow for the detection of odorants and pheromones, though challenges remain in detecting aldehydes effectively.
  • A new OBP2a-based electrochemical impedance spectroscopy (EIS) biosensor was created, showing high sensitivity and selectivity for specific aldehydes while minimizing interference from other substances.
  • The biosensor demonstrated excellent repeatability, stability, and recovery rates, indicating its potential applications in medical diagnostics, food analysis, and environmental monitoring.
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Background: Risk prediction models are routinely used to assist in clinical decision making. A small sample size for model development can compromise model performance when the model is applied to new patients. For binary outcomes, the calibration slope (CS) and the mean absolute prediction error (MAPE) are two key measures on which sample size calculations for the development of risk models have been based.

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  • * Findings reveal that higher OBS scores are connected with a lower incidence of HF, with individuals in the highest OBS quintile showing significantly reduced odds of HF compared to those in the lowest quintile.
  • * Overall, the research suggests that improving oxidative balance through diet and lifestyle may help mitigate the risk of heart failure in older adults.
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Carbon nanotubes (CNTs) can be regarded as a potential platform for transmembrane drug delivery as many experimental works have demonstrated their capability to effectively transport bioactive molecules into living cells. Within this framework, the loading of a peptide drug onto either the interior or exterior of CNTs has gained considerable interest. This study aims to conduct a comprehensive comparison of these two loading methods.

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  • Clearance of damaged mitochondria through mitophagy is essential for cellular function, with RBX2 as a newly identified ubiquitin ligase affecting mitochondrial health, especially in the heart.
  • Depleting RBX2 impairs mitochondrial functions, increases cell death, and leads to heart diseases such as dilated cardiomyopathy due to the accumulation of damaged mitochondria.
  • The study reveals that RBX2 operates independently of Parkin, highlighting its critical role in mitochondrial maintenance and cardiac homeostasis through the stabilization of PINK1.
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