20,233 results match your criteria: "Southwest University.[Affiliation]"

An animal model recapitulates human hepatic diseases associated with mutations.

Proc Natl Acad Sci U S A

January 2025

Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, State Key Laboratory Breeding Base of Eco-Environments and Bio-Resources of the Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Chongqing 400715, China.

Heterozygotic mutations are responsible for various congenital diseases in the heart, pancreas, liver, and other organs in humans. However, there is lack of an animal that can comprehensively model these diseases since GATA6 is essential for early embryogenesis. Here, we report the establishment of a knockout zebrafish which recapitulates most of the symptoms in patients with mutations, including cardiac outflow tract defects, pancreatic hypoplasia/agenesis, gallbladder agenesis, and various liver diseases.

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Nano-Armed Limosilactobacillus reuteri for Enhanced Photo-Immunotherapy and Microbiota Tryptophan Metabolism against Colorectal Cancer.

Adv Sci (Weinh)

December 2024

Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology, Chengdu, 610054, China.

Despite being a groundbreaking approach to treating colorectal cancer (CRC), the efficacy of immunotherapy is significantly compromised by the immunosuppressive tumor microenvironment and dysbiotic intestinal microbiota. Here, leveraging the superior carrying capacity and innate immunity-stimulating property of living bacteria, a nanomedicine-engineered bacterium, LR-S-CD/CpG@LNP, with optical responsiveness, immune-stimulating activity, and the ability to regulate microbiota metabolome is developed. Immunoadjuvant (CpG) and carbon dot (CD) co-loaded plant lipid nanoparticles (CD/CpG@LNPs) are constructed and conjugated to the surface of Limosilactobacillus reuteri (LR) via reactive oxygen species (ROS)-responsive linkers.

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Bombyx mori nuclear polyhedrosis, caused by B. mori nucleopolyhedrovirus (BmNPV), threatens sericulture seriously. To explore strategies for controlling it, the UDP glycosyltransferase gene UGT41A3 (BmUGT41A3) was targeted.

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Priority attribute algorithm for Q-matrix validation: A didactic.

Behav Res Methods

December 2024

Faculty of Psychology, Southwest University, Chongqing, China.

The Q-matrix is one of the core components of cognitive diagnostic assessment, which is a matrix describing the relationship between items and the attributes being assessed. Numerous studies have shown that inaccuracies in defining the Q-matrix can degrade parameter estimation and model fitting results. Currently, Q-matrix validation often involves exhaustive search algorithms (ESA), which traverse through all possible -vectors and determine the optimal -vector for items based on indicators or criteria corresponding to different validation methods.

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The reciprocal relationship between social exclusion and basic psychological needs through cross-lagged analysis.

Sci Rep

December 2024

Faculty of Psychology, MOE Key Laboratory of Cognition and Personality, Southwest University, Chongqing, People's Republic of China.

Social exclusion has wide-ranging and detrimental effects. This study recruited 771 Chinese college students (Mage = 19.65 years, SDage = 1.

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Attenuated cadmium and arsenic enrichment in rice by co-application of organic composting and chemical fertilization.

Sci Rep

December 2024

College of Resources and Environment, Department of Environment Science and Engineering, Southwest University, Chongqing, 400715, China.

A pot experiment was conducted on arsenic (As) and cadmium (Cd) co-contaminated soil to discern the influence of varying proportions of pig manure compost (PM) vis-à-vis chemical fertilizers (NPK) on the mitigation of Cd and As absorption by rice. Our findings illustrated that by increasing the PM proportions from 25 to 100%, it manifested a statistically significant reduction in the mobilized fractions of Cd, accounting for up to 77% reduction in soil CaCl-Cd concentrations. Conversely, the NaHCO-As reactions were contingent on the distinct PM application rates.

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Objective: Cancer survivors often face significant health-related quality of life (HRQoL) challenges. Although exercise has been proven to improve HRQoL in cancer survivors, the optimal dose and intensity of exercise for this population has not been fully determined. Adherence to exercise may vary based on exercise intensity, affecting results.

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Article Synopsis
  • AMF (arbuscular mycorrhizal fungi) are important in managing heavy metal contamination in soil, particularly in the context of cadmium (Cd) pollution.
  • The study tested the effects of maintaining static versus rotating conditions on AMF growth and found that rotating the soil reduced beneficial substances, hindered maize growth, and increased Cd absorption by the plants.
  • Results showed that AMF help limit Cd movement in soil by altering its chemical forms and decreasing overall availability, thus protecting crops from heavy metal uptake.
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Curiosity, an innate and intrinsic motivation to explore, makes vital contributions to learning in individuals of various ages. Epistemic curiosity centers on the drive to close information gaps and can be classified into joyous exploration and interest (I) and deprivation sensitivity (D) types. Each subtype is associated with different academic achievements, personality traits, emotions, and aspects of creativity.

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Drought and cold crucially affect plant growth and distribution. Plants have evolved complex molecular mechanisms to adapt to such adverse environmental conditions. This study examines two Elymus sibiricus (Es) germplasms differing in resilience to these stresses.

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When the traditional random forest (RF) algorithm is used to select feature elements in biostatistical data, a large amount of noise data and parameters can affect the importance of the selected feature elements, making the control of feature selection difficult. Therefore, it is a challenge for the traditional RF algorithm to preserve the accuracy of algorithm results in the presence of noise data. Generally, directly removing noise data can result in significant bias in the results.

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Introduction: This study protocol specifies the primary research line and theoretical framework of the 2023 Survey of the Psychology and Behavior of the Chinese Population. It aims to establish a consistent database of Chinese residents' psychological and behavioral surveys through multi-center and large-sample cross-sectional surveys to provide robust data support for developing research in related fields. It will track the public's physical and psychological health more comprehensively and systematically.

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Background And Aims: Over the past decade, numerous studies investigating the relationship between breakfast consumption frequency and handgrip strength and standing long jump have produced conflicting evidence, leading to uncertainty regarding this association. This study aimed to provide further clarity on the relationship between breakfast consumption frequency and handgrip strength and standing long jump.

Methods: A comprehensive search of the literature up to September 15, 2023, was conducted on Web of Science, PubMed, Scopus, MEDLINE, and CNKI.

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Bio-energy-powered microfluidic devices.

Biomicrofluidics

December 2024

Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.

Bio-microfluidic technologies offer promising applications in diagnostics and therapy, yet they face significant technical challenges, particularly in the need for external power sources, which limits their practicality and user-friendliness. Recent advancements have explored innovative methods utilizing body fluids, motion, and heat to power these devices, addressing the power supply issue effectively. Among these, body-motion and body-heat-powered systems stand out for their potential to create self-sustaining, wearable, and implantable devices.

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Carbon sinks associated with biological carbon pump in karst surface waters: progress, challenges, and prospects.

Environ Res

December 2024

Xi'an Institute for Innovative Earth Environment Research, Institute of Earth Environment Chinese Academy of Sciences, Xi'an 710061, China; Xi'an Institute for Innovative Earth Environment Research, Xi'an 710061, China.

The biological carbon pump (BCP) associated with aquatic photosynthesis in karst surface waters converts dissolved inorganic carbon (DIC) into organic carbon. In the context of global climate change, BCP could be an important carbon sink mechanism, ultimately regulating atmospheric carbon dioxide (CO) and mitigating climate change. Because of the high DIC and pH, and low dissolved CO [CO (aq)], the hydrochemical characteristics of karst surface water bodies cause C limitation in BCP efficiency.

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An innovative method for preparing durable flame-retardant cotton fabrics using tetrakis(hydroxymethyl)phosphonium sulfate without specialized equipment.

Int J Biol Macromol

December 2024

State Key Laboratory of Resource Insects, College of Sericulture Textile and Biomass Sciences, Southwest University, Chongqing 400715, China. Electronic address:

Article Synopsis
  • Two phosphorus-based flame retardants, APTA and DUPT, were synthesized and characterized using NMR and FTIR techniques.
  • FTIR and SEM analyses demonstrated that DUPT crosslinked APTA onto cellulose, enhancing the flame-retardant properties of treated cotton fabrics.
  • The treated cotton showed high flame resistance, maintaining a limiting oxygen index (LOI) after multiple washes, and exhibited a solid performance in altering the degradation process during combustion.
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Low background catalytic redox recycling coupled with hybridization chain reaction amplification for highly sensitive electrochemical aptamer luteinizing hormone assay.

Bioelectrochemistry

December 2024

Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.

The concentration variation of luteinizing hormone (LH) regulates the cell cycle of oocyte meiosis and significantly affect the whole reproductive cycle. Sensitively quantifying the LH biomarker therefore plays an important role for reproductive disease diagnosis. By coupling a new low background catalytic redox recycling strategy with hybridization chain reaction (HCR), we propose a highly sensitive bio-electrochemical aptamer LH sensing method.

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Clean and sustainable extraction of gelatin: Effects of microwave and freeze-thaw on the crosslinking degree and hydrogen bond of fish skin collagen.

Food Chem

December 2024

College of Food Science, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China; Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Chongqing 400715, China. Electronic address:

The traditional gelatin extraction methods (acid-base) may hinder to their green applications due to mass energy consumption and pollution. Herein, we constructed a clean and sustainable gelatin extraction method, investigated the molecular mechanism of microwave treatment (0-360 min) and freeze-thaw on the gelatin extraction from the perspective of the crosslinking degree and hydrogen bonds. Microwave (0-60 min) can improve the hydrolysis degree (DH) and expose more enzyme cleavage sites of collagen by destroying the intramolecular and intermolecular covalent crosslinking.

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Machine learning combined with geodetector to predict the spatial distribution of soil heavy metals in mining areas.

Sci Total Environ

December 2024

Technical Centre for Soil, Agricultural and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China.

An accurate understanding of the spatial distribution of soil heavy metals (HMs) is crucial for the effective prevention of soil pollution and remediation strategies. Traditional machine learning models often overlook the spatially stratified heterogeneity inherent to environmental data, which can impair predictive accuracy. Therefore, we combined the Geodetector model (GDM) with machine learning models.

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Photothermal-manipulatable shape memory polyacrylamide/gelatin Janus hydrogel with drug carrier array for invasive wound closure and responsive drug release.

Int J Biol Macromol

December 2024

State Key Laboratory of Resource Insects, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China. Electronic address:

Traditional wound closure methods often present several issues, including additional puncture wounds, adverse effects from anesthesia, and noticeable scarring. Inspired by embryonic wound healing, a Janus hydrogel (PG/Au-Asp@PCM) is designed to manipulate non-invasive wound closure by photothermal-responsive self-contraction of PG/Au-Asp@PCM, which is attributed to the shape memory behavior of PG/Au-Asp@PCM under near-infrared (NIR). Wherein, gelatin acts as a thermally reversible "switch" and polyacrylamide creates stable and cross-linked "net-points".

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The glutathione S-transferase BnGSTU12 enhances the resistance of Brassica napus to Sclerotinia sclerotiorum through reactive oxygen species homeostasis and jasmonic acid signaling.

Plant Physiol Biochem

December 2024

Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City and Southwest University, College of Agronomy and Biotechnology, Southwest University, Beibei, Chongqing, 400715, China; Academy of Agricultural Sciences, Southwest University, Beibei, Chongqing, 400715, China; Engineering Research Center of South Upland Agriculture, Ministry of Education, Chongqing, 400715, China. Electronic address:

Sclerotinia sclerotiorum is a severe disease that affects rapeseed (Brassica napus), resulting in significant yield losses. In previous study, we identified the candidate GLUTATHIONE S-TRANSFERASE (GST) gene, BnGSTU12, associated with sclerotiorum stem resistance and the expression levels of BnGSTU12 in resistant lines were higher than that in susceptible lines. We analyzed the function of the BnGSTU12 during S.

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Etoxazole, a widely used mite growth inhibitor, contains a chiral center in its chemical structure, resulting in two mirror-image enantiomers. These enantiomers of etoxazole display significant differences in biological activity and environmental behavior. In bioassays conducted against , it was observed that S-etoxazole demonstrated approximately 279.

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The potential role of vesicle transport-related small GTPases rabs in abiotic stress responses.

Plant Physiol Biochem

December 2024

Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education)/College of Horticulture and Landscape Architecture, Southwest University, Chongqing, 400715, China; State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University/Academy of Agricultural Sciences of Southwest University, Chongqing, 400715, China. Electronic address:

Rab GTPases are a class of small GTP-binding proteins, play crucial roles in the membrane transport machinery with in eukaryotic cells. They dynamically regulate the precise targeting and tethering of transport vesicles to specific compartments by transitioning between active and inactive states. In plants, Rab GTPases are classified into eight distinct subfamilies: Rab1/D, Rab2/B, Rab5/F, Rab6/H, Rab7/G, Rab8/E, Rab11/A, and Rab18/C.

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Transcriptome-derived evidence reveals the regulatory network in the skeletal muscle of the fast-growth mstnb male tilapia.

Comp Biochem Physiol Part D Genomics Proteomics

December 2024

Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), School of Life Science, Southwest University, Fisheries Engineering Institute, Chinese Academy of Fishery Sciences, Chongqing 400715, PR China. Electronic address:

Myostatin (Mstn) negatively regulates muscle growth and Mstn deficiency induced "double-skeletal muscle" development in vertebrates, including tilapias. In this study, we performed a transcriptomic analysis of skeletal muscle from both wild-type and mstnb males to investigate the molecular mechanisms underlying skeletal muscle hypertrophy in mstnb mutants. We identified 4697 differentially expressed genes (DEGs), 113 differentially expressed long non-coding RNAs (DE lncRNAs), 211 differentially expressed circular RNAs (DE circRNAs), and 98 differentially expressed microRNAs (DE miRNAs).

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Automated identification of impact spatters and fly spots with a residual neural network.

Forensic Sci Int

December 2024

Criminal Investigation School, Southwest University of Political Science and Law, Chongqing, China; Chongqing Institutions of Higher Education Municipal Key Criminal Technology Laboratory, Chongqing, China; Intelligent Research Center of Difficult Homicide Cases Investigation, Southwest University of Political Science and Law, Chongqing, China. Electronic address:

In criminal investigations, distinguishing between impact spatters and fly spots presents a challenge due to their morphological similarities. Traditional methods of bloodstain pattern analysis (BPA) rely significantly on the expertise of professional examiners, which can result in limitations including low identification efficiency, high misjudgment rates, and susceptibility to external disturbances. To enhance the accuracy and scientific rigor of identifying impact spatters and fly spots, this study employed artificial intelligence techniques in image recognition and transfer learning.

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