444,680 results match your criteria: "PR China; Orthopaedic Trauma Center of the 175th Hospital of PLA[Affiliation]"

A novel spectroscopy-deep learning approach for aqueous multi-heavy metal detection.

Anal Methods

January 2025

Laboratory of Environmental Aquatic Chemistry, Department of Environmental Science, Shaanxi Normal University, Xi'an, 710062, P. R. China.

Addressing heavy metal contamination in water bodies is a critical concern for environmental scientists. Traditional detection methods are often complex and costly. Recent advancements in artificial intelligence (AI), particularly machine learning (ML) and deep learning (DL), have shown significant potential in analytical chemistry.

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Automated large-scale farmland preparation operations face significant challenges related to path planning efficiency and uniformity in resource allocation. To improve agricultural production efficiency and reduce operational costs, an enhanced method for planning land preparation paths is proposed. In the initial stage, unmanned aerial vehicles (UAVs) are employed to collect data from the field, which is then used to construct accurate farm models.

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Cytosine-rich and poly(adenine)-tailed tetrahedral DNA framework (TDF) is designed as template (A-TDF) for anchoring silver nanoclusters (AgNCs) and igniting the dual-color fluorescence of AgNCs. The resultant DNA-AgNCs simultaneously emits red and green fluorescence, and the quantum yield of red fluorescence is as high as 44.8%.

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The impact of seasonal short-term drought on plant physiology and resilience is crucial for conservation and management strategies. This study investigated drought stress effects on growth, photosynthetic capacity, and physiological responses of Camphor (Cinnamomum camphora) seedlings in Guangxi province, China. Fertilized potted plants underwent continuous drought treatments to assess varying water supply effects.

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A new insight into the anatomical ablation approach at R-L ILT for VAs with a left ventricular summit origination: electrophysiological characteristics and catheter ablation.

J Interv Card Electrophysiol

January 2025

Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, No.180, Feng-Lin Road, Shanghai, 200032, P.R. China.

Background: Ventricular arrhythmia (VA) originating from the left ventricular summit (LVS) poses particular challenges, with higher rates of ablation failure.

Objective: To further evaluate the anatomical ablation approach from the subaortic region for LVS VAs and their electrophysiological characteristics.

Method: The study enrolled 27 consecutive patients with sympatomatic VAs originating from LVS and who received an anatomical ablation approach from R-L ILT in our center.

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Preparation and Hypoglycemic Effect of Magnolia Officinalis Polysaccharide Oral Liquid.

Plant Foods Hum Nutr

January 2025

Hubei Key Laboratory of Biologic Resources Protection and Utilization, Hubei Minzu University, Enshi, 445000, P.R. China.

In this paper, an oral liquid containing Magnolia officinalis polysaccharide was formulated and its hypoglycemic effects were investigated. An orthogonal test was conducted based on single-factor experiments to optimize the formulation guided by sensory evaluations. Its stability and safety were also assessed.

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Owing to their synergistic interactions, dual-atom catalysts (DACs) with well-defined active sites are attracting increasing attention. However, more experimental research and theoretical investigations are needed to further construct explicit dual-atom sites and understand the synergy that facilitates multistep catalytic reactions. Herein, we precisely design a series of asymmetric selenium-based dual-atom catalysts that comprise heteronuclear SeN-MN (M = Fe, Mn, Co, Ni, Cu, Mo, etc.

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Developing donor-acceptor [n]cycloparaphenylenes (D-A [n]CPPs) with multiple emissions from different emissive states remains challenging yet crucial for achieving white-light emission in single-molecule. Here, we report our explorations into acceptor engineering of quinone-based D-A [10]CPPs (Nq/Aq/Tq[10]CPPs) via a post-lateral annulation using Diels-Alder reactions of oxTh[10]CPP. X-ray analysis reveals that Nq[10]CPP displays a side by side packing via naphthoquione stacking while Aq[10]CPP adopts an intercalated conformation through anthraquinone interaction.

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Click beetle larvae from Cretaceous Burmese amber represent an ancient Gondwanan lineage.

Sci Rep

January 2025

Department of Geoinformatics, Faculty of Science, Palacky University, 17. listopadu 50, 77146, Olomouc, Czech Republic.

The click beetles (Elateridae) represent the major and well-known group of the polyphagan superfamily Elateroidea. Despite a relatively rich fossil record of Mesozoic Elateridae, only a few species are described from the Upper Cretaceous Burmese amber. Although Elateridae spend most of their lives as larvae, our knowledge on immature stages of this family is limited, which is especially valid for the fossils.

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Mosquitoes pose a significant threat to global health, impacting over 40% of the world's population. Currently, a dearth of large-scale and long-term data on mosquito populations in China hinders related research and public health endeavors. In response, we meticulously compiled and analyzed existing studies to construct a comprehensive dataset illustrating the spatial variation of mosquito populations, density, and composition across mainland China.

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PEG-rhG-CSF versus rhG-CSF in supporting neutrophil recovery after induction chemotherapy for patients with newly diagnosed acute lymphoblastic leukemia.

Ann Hematol

January 2025

Department of Hematology, Cheeloo College of Medicine, Qilu Hospital, Shandong University, 107 West Culture Road, Lixia District, Jinan, 250012, P.R. China.

To compare the efficacy and safety of pegylated recombinant human granulocyte colony-stimulating factor (PEG-rhG-CSF) and rhG-CSF in the recovery of neutrophils after induction therapy in ALL patients, PEG-rhG-CSF was injected subcutaneously within 24 ~ 48 h after the end of intravenous infusion of daunorubicin/idarubicin during induction chemotherapy. In rhG-CSF group, patients were given rhG-CSF. The main outcome indexes were the incidence and duration of grade 4 chemotherapy-induced-neutropenia (CIN, ANC less than 0.

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Langerhans cell histiocytosis (LCH) is a heterogeneous histiocytosis with various pulmonary manifestations and imaging. We aim to evaluate the pulmonary response of LCH by high resolution chest computed tomography (HRCT) through continuous follow-up.We conducted a retrospective analysis of 73 adult LCH patients with pulmonary involvement.

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Gram-positive bacterial pneumonia is a significant cause of hospitalization and death. Shortage of a good experimental model and therapeutic targets hinders the cure of acute lung injury (ALI). This study has established a mouse model of ALI using Gram-positive bacteria Lactobacillus casie cell wall extracts (LCWE) and identified the key regulator NLRP3.

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Litter size traits of sows are crucial for the economic benefits of the pig industry. Three phenotypic traits of 1,206 Large White (LW) pigs, that is, the total number born (TNB), number born alive (NBA), and number of healthy piglets (NHP), were recorded. We evaluated a series of genomic best linear unbiased prediction (GBLUP) models that sequentially added additive effects (model A), dominance effects (model A+D), and epistatic effects (model A+D+AA, model A+D+AA+AD, and model A+D+AA+AD+DD) using chip data and imputed whole-genome sequencing (WGS) data to estimate genetic parameters and predictive accuracy.

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Sodium aescinate-induced hepatotoxicity via ATF4/GSH/GPX4 axis-mediated ferroptosis.

Sci Rep

January 2025

School of Medicine, Yichun University, 576 XueFu Road, Yuanzhou District, Yichun, 336000, Jiangxi, P.R. China.

Sodium aescinate (SA), a natural plant extract with various bioactivities, is widely used to treat oedema and inflammation in clinics. However, adverse events, including liver injury, kidney injury, and phlebitis, have been reported in patients with SA in recent years. In this study, we used BALB/c mice and L02 cells to evaluate the role of ferroptosis in SA-induced liver injury.

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Laennec approach for anatomical liver resection assisted by laparoscopy or robotics: a multicenter cohort study.

Int J Surg

January 2025

Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China.

Introduction: Laennec's capsule serves as a critical anatomical landmark in anatomical liver resection. Despite its potential, a lack of large-scale prospective studies limits the widespread use of the Laennec approach for minimally invasive hepatectomy. This multicenter cohort study aimed to compare the outcomes of the traditional and Laennec approaches in minimally invasive anatomical hepatectomy across multiple centers in China.

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Post-kidney transplantation EBV-related brainstem encephalitis.

QJM

January 2025

Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041, P. R. China.

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Purpose: Oxidative phosphorylation (OXPHOS) is an aerobic metabolic mechanism, and its dysfunction plays an important role in the pathological changes of ischemic diseases. However, systematic studies on the occurrence of retinal detachment (RD) are lacking.

Methods: Single-cell RNA sequencing (scRNA-seq) of the human retina was performed to detect the metabolic changes of various retinal cells after RD.

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A covalent organic framework-based nanoreactor for enhanced chemodynamic therapy through cascaded Fenton-like reactions and nitric oxide delivery.

Chem Commun (Camb)

January 2025

College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, P. R. China.

Herein, we report a nanoscale composite COF material loaded with copper peroxide (CuO) and nitric oxide (NO) prodrug a stepwise post-synthetic modification. The obtained CuO2@COF-SNO can undergo a cascade reaction in the tumor microenvironment to generate reactive oxygen and nitrogen species (ROS/RNS) to enhance chemodynamic therapy of the tumor.

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Herein, we developed a silane-promoted cycloaddition of thiobenzhydrazides with carbon dioxide leading to 1,3,4-thiadiazol-2(3)-ones. This procedure involves sequential -silylation and fixation of carbon dioxide toward a hydrazine formyl intermediate, followed by intramolecular nucleophilic cyclization and aromatization. A series of functional groups are well-tolerated under this procedure.

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Objective: Accumulating evidence suggests that microRNAs derived from macrophage exosomes can regulate the stemness and progression of cancer. However, the interaction mechanisms between HCC cells and tumor-associated macrophages remain unclear.

Methods: Exosomes were extracted from control or CD63 overexpression macrophages and co-cultured with HCC cells.

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The study focuses on the effects of the COVID-19 pandemic on the economy and foreign direct investments in the European Union countries. Using data envelopment analysis constant and variable returns to scale models, and the Malmquist productivity index, we measured the efficiency of economic resource utilization concerning foreign direct investments and gross domestic product. These efficiencies were assessed in 2019, before the full outbreak of COVID-19, and in 2020, when uncertainty and the consequences of the pandemic were most pronounced.

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Droplets in open microfluidics: generation, manipulation, and application in cell analysis.

Lab Chip

January 2025

Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, P. R. China.

Open droplet microfluidics is an emerging technology that generates, manipulates, and analyzes droplets in open configuration systems. Droplets function as miniaturized reactors for high-throughput analysis due to their compartmentalization and parallelization, while openness enables addressing and accessing the targeted contents. The convergence of two technologies facilitates the localization and intricate manipulation of droplets using external tools, showing great potential in large-scale chemical and biological applications, particularly in cell analysis.

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Evidence suggest that dietary advanced glycation end products (AGEs) might exert harmful effects on female reproductive function. However, population-based studies exploring the associations between dietary AGEs intake and female infertility remain lacking. This studyaimed to determine the relationship between dietary AGEs intake and female infertility based on National Health and Nutrition Examination Survey (NHANES).

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