Publications by authors named "Yu Lv"

This research looks at rapid detection and algorithm optimization of total purine in livestock meat with the goal of supporting the creation of low-purine diets. First, the prediction models for total purine content of single species were constructed based on chemical and hyperspectral data. Next, the correlation of spectral curves between different species by Hausdorff distance and Pearson correlation coefficient were analyzed to explore differential purine variation in mixed livestock meat.

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A Gram negative bacterium, designated H3, was isolated from a forest soil sample collected in Zhangjiajie National Forest Park, Hunan Province, PR China. Cells of strain H3 were yellow-pigmented, strictly aerobic, motile by means of a single polar flagellum. Growth occurred at 15-37 °C (optimum, 25-30 °C), pH 6.

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Osteosarcoma (OS), a malignant bone tumor with limited treatment options, exhibits low sensitivity to immune checkpoint therapy (ICT). Through genomics and transcriptomics analyses, we identify a subgroup of OS with methylthioadenosine phosphorylase (MTAP) deletion, which contributes to ICT resistance, leading to a "cold" tumor microenvironment. MTAP-deleted OS relies on methionine metabolism and is sensitive to methionine intervention, achieved through either dietary restriction or inhibition of methionine adenosyltransferase 2a (MAT2A), a key enzyme in methionine metabolism.

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Introduction: The phenotypic transition of vascular smooth muscle cells (VSMCs) from a quiescent, contractile type to a secretory phenotype with high proliferation and mobility is a key event in vascular remodeling. PF-477736 is an ATP-competitive inhibitor of Chk1 which induces the accumulation of DNA damage by increasing the level of replicative stress, and ultimately inhibiting cell proliferation or causing cell death. Although this compound has been utilized as an anti-tumor drug, its role in vascular remodeling remains unclear.

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Article Synopsis
  • * The study explored the effects of AXL on immune cells by using cell lines with altered AXL levels and co-culturing them with human immune cells to assess their impact on immune response.
  • * Findings indicate that AXL significantly influences the differentiation and accumulation of myeloid-derived suppressor cells (MDSCs) in nasopharyngeal carcinoma, linking it to key cytokines, which suggests potential strategies for improving immunotherapy outcomes.
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Background: Rosacea has a high incidence, significantly impacts quality of life, and lacks sufficient diagnostic techniques. This study aimed to investigate the feasibility of laser speckle contrast imaging (LSCI) for measuring facial blood perfusion in patients with rosacea and to identify differences in blood flow among various facial regions associated with different rosacea subtypes.

Methods: From June to December 2023, 45 patients were recruited, with 9 excluded, leaving 36 subjects: 12 with erythematotelangiectatic rosacea (ETR), 12 with papulopustular rosacea (PPR), and 12 healthy controls.

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Thyroid nodule (TN) has been becoming a great concern worldwide due to its high incidence. Although some studies have reported associations between trace elements exposure and the risk of TNs, the linkage was not inconclusive. The present study aimed to identify the association of selected serum trace elements (Ca, Mg, V, Fe, Co, Cu, Zn, Se, Mn and Mo) with TNs among general adults.

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Following long-term hypertension, mechanical stretching and neuroendocrine stimulation, cause multiple heterogeneous cells of the heart to interact, and result in myocardial remodeling with myocardial hypertrophy and fibrosis. The immune system, specifically macrophages, plays a vital role in this process. Macrophages are heterogeneous and plastic.

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Norfloxacin is an antibacterial compound that belongs to the fluoroquinolone family. Currently, hyperspectral imaging (HSI) for the detection of antibiotic residues focuses mostly on individual systems. Attempts to integrate different HSI systems with complementary spectral ranges are still lacking.

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Article Synopsis
  • - Tumor microenvironments (TMEs) are crucial in cancer development and treatment resistance, leading to increased research in this area.
  • - Advances in nanotechnology are paving the way for targeted cancer therapies that can specifically address the unique characteristics of TMEs.
  • - The review explores the regulation of biochemical conditions in TMEs, identifies challenges in creating effective nanotherapeutics, and considers combining these with traditional therapies for better cancer treatment outcomes.
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Background: Antiretroviral therapy (ART) has transformed HIV management, with various regimens available. Dolutegravir (DTG) plus lamivudine (3TC) dual therapy is now the one of the first line regimens.

Methods: A retrospective, observational study included treatment naïve people living with HIV (PLWH) with baseline HIV RNA viral load (VL) greater than 500,000 copies/mL from March 2020 to June 2022.

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Decabromodiphenyl ethane (DBDPE), as one of the important new brominated flame retardants, is widely utilized in a variety of plastic products. However, the pyrolysis mechanism of DBDPE remains uncertain. In this article, the evolution behavior of the main products during the thermal decomposition of DBDPE is investigated using density functional theory at the theoretical level of M06-2X/6-311++G(2df,p)//M06-2X/6-311+G(d).

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Immune thrombocytopenia (ITP) is the most common autoimmune disorder characterized by decreased platelet counts and impaired platelet production. Eltrombopag has been demonstrated to be safe and effective for children with ITP. It is reported eltrombopag can achieve a sustained response off treatment.

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Objective: This study aimed to construct a coronary heart disease (CHD) risk-prediction model in people living with human immunodeficiency virus (PLHIV) with the help of machine learning (ML) per electronic medical records (EMRs).

Methods: Sixty-one medical characteristics (including demography information, laboratory measurements, and complicating disease) readily available from EMRs were retained for clinical analysis. These characteristics further aided the development of prediction models by using seven ML algorithms [light gradient-boosting machine (LightGBM), support vector machine (SVM), eXtreme gradient boosting (XGBoost), adaptive boosting (AdaBoost), decision tree, multilayer perceptron (MLP), and logistic regression].

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A Gram-stain-negative bacterium, designated XZ-24, was isolated from sediment of a river in Mianyang city, Sichuan province, PR China. Cells (1.0-2.

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A Gram-stain-negative bacterium, designated as R-40, was isolated from sediment of the Mulong river in Mianyang city, Sichuan province, PR China. The cells of strain R-40 were aerobic non-motile and formed translucent white colonies on R2A agar. Growth occurred at 15-37 °C (optimum 30 °C), pH 5.

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A Gram-stain-positive bacterium, designated YN-L-19, was isolated from a sludge sample collected from a pesticide-manufacturing plant. Cells of YN-L-19 were strictly aerobic, non-spore-forming, non-motile and ovoid-shaped. Colonies were small, smooth and yellow.

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Objectives: Dolutegravir + lamivudine (DTG + 3TC) is a first-line regimen for people with HIV. However, there are still concerns about its efficacy in people with tuberculosis (TB)/HIV due to the lack of available evidence and drug-drug interaction with rifampicin.

Methods: A single-centre retrospective observational case series was conducted in Guangxi Zhuang Autonomous Region, China.

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Article Synopsis
  • * A series of models were developed—including CNN-Bi-LSTM and an optimized Bayes-CNN-Bi-LSTM—to improve the accuracy of linoleic acid content predictions, achieving increasingly better predictions with each model refinement.
  • * Results indicated that the best preprocessing method involved a detrending algorithm and that specific feature wavelengths were identified, yielding a highest prediction accuracy of 0.909 for linoleic acid content, paving the way for advancements in on-line detection equipment for meat quality analysis.
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To elucidate the valence state effect of doping cations, Li, Mg, Cr, Zr and Nb with radii similar to Sn (CN = 6) were chosen to dope tetragonal SnO. Cr, Zr and Nb can enter the SnO lattice to produce solid solutions, thus creating more surface defects. However, Li and Mg can only stay on the SnO surface as nitrates, thus suppressing the surface defects.

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  • Healthcare-associated infections (HAIs) pose significant risks to patient safety and come with substantial economic costs, but there's limited data linking these costs to Medicare in western China, prompting this study.
  • The study compared medical costs of patients with HAIs to those without HAIs over six years at 34 hospitals, utilizing data from 2016 and 2022 to identify trends and cost growth.
  • Findings revealed that older patients with HAIs in 2022 faced much higher hospital costs compared to those without HAIs, indicating worsening economic impacts associated with these infections over time.
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The quality of beef is usually predicted by measuring a single index rather than a comprehensive index. To precisely determine the essential amino acid (EAA) contents in 360 beef samples, the feasibility of optimized spectral detection techniques based on the comprehensive EAA index (CEI) and comprehensive weight index (CWI) constructed by factor analysis was explored. Two-dimensional correlation spectroscopy (2D-COS) was used to analyse the mechanisms of spectral peak shifts in complex disturbance systems with CEI and CWI contents, and 15 sensitive feature variables were extracted to establish a quantitative analysis model of a long short-term memory network (LSTM).

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This literature review systematically searched relevant literature from the past 10 years using various medical databases, including PubMed, Medline, Cochrane, China National Knowledge Infrastructure (CNKI), Wanfang, and Weipu. As a chronic inflammatory disease, psoriasis is associated with various cells and cytokines of the body's immune system, making them more susceptible to various systemic comorbidities than the general population. At a time when conventional regimens are ineffective and there is a lack of personalized treatment options for such comorbidities, the development of biologics has revolutionized the treatment of psoriasis comorbidities, and a number of biologic combination therapies have been incorporated into first-line treatments in many countries.

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Background: To ensure emergency infection prevention and control (IPC) can be fully supervised and monitored in coronavirus disease (COVID-19) epidemic period, a three-level inspector mechanism called "Internal self-check, Departmental cross-check, and Verification of outstanding key and difficult issues" was established in southwest China. The present study aimed to explore the effectiveness of inspector mechanism for the emergency IPC.

Methods: A self-control real-world study was conducted during COVID-19 epidemic period from 2020 to 2022.

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