Publications by authors named "YunFei Luo"

The escalating diabetes prevalence has heightened interest in innovative therapeutic strategies for this disease and its complications. Human amniotic epithelial stem cells (HAESCs), originate from the innermost layer of the placenta closest to the fetus and express stem cell markers in the amniotic membrane's umbilical cord attachment area, which have garnered significant attention. This article critically examines emerging research advancements and potential application values of hAESCs in treating diabetes and its complications.

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Aims: Semaglutide, a novel long-acting GLP-1RA, stimulates insulin and suppresses islet-secreted glucagon to reduce glucose levels. It has been unveiled that m6A mRNA modification plays a pivotal role in regulating β cell function. However, it remains unclear whether semaglutide can elicit protective effects through manipulating m6A modification and the underlying mechanism.

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Purpose: Oltipraz has various applications, including for treating cancer, liver fibrosis, and cirrhosis. However, its role in regulating metabolic processes, inflammation, oxidative stress, and insulin resistance in STZ-induced T2DM remains unclear. Hence, a comprehensive understanding of how oltipraz ameliorates diabetes, particularly inflammation and oxidative stress, is imperative.

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An innovative solution that overcomes the long-standing inherently low efficiency in -heterocyclic carbene-catalyzed aerobic oxidation of aldehydes is reported. This solution included the design and synthesis of a novel polymerized catalyst and the utilization of a flow reactor. The unprecedentedly high efficiency achieved via this protocol makes it synthetically applicable.

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Organoboronic acids, some of the most common and widely used organoboron compounds, have not yet been used in the cobalt-catalyzed cross coupling reactions, despite cobalt demonstrating good reactivity with zinc reagents, Grignard reagents, and metal organoborates that are formed by -butyl lithium or alkaline metal alkoxide salts and organoboron esters. Herein, a highly efficient and practical cobalt-catalyzed coupling reaction of aryl/alkenyl boronic acids and alkynyl chloride under mild reaction conditions is reported. The advantages of the organoboronic acids, along with a broad functional group compatibility and the reaction's tolerance to moisture and air, enable this reaction to be a synthetically useful protocol for the construction of a C(sp)-C(sp) bond.

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  • Modern microscopy imaging systems are essential for medical image analysis, yet manual use can lead to issues like inefficiency and operator bias.
  • This paper introduces an enhanced U-Net salient object detection algorithm that utilizes deep learning to improve the extraction of key information and streamline complex network operations.
  • The resulting model is 56.85% smaller than the original U-Net, with increased accuracy from 92.24% to 97.13%, making it more effective for medical image processing and analysis.
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  • - Curcumin shows potential for preventing and treating colorectal cancer (CRC) by influencing gut microbiota and its metabolites, although its exact mechanisms are not fully understood.
  • - In a study with C57BL/6JGpt mice, curcumin treatment improved colon structure, reduced tumor formation, and positively altered gut bacteria diversity compared to CRC mice that did not receive curcumin.
  • - The research found that curcumin decreased harmful bacteria and increased beneficial ones, along with identifying 13 metabolites that were altered in the CRC model group, suggesting a significant impact on gut health related to CRC.
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Ventricular remodeling after myocardial infarction(VRAMI) is a pathological phenomenon triggered by the abrupt occlusion of coronary arteries, leading to myocardial ischemia and hypoxia. This intricate process encompasses alterations in the dimensions, composition, and elasticity of the ventricular tissue and reflects pathophysiological reactions and self-repair after cardiomyocytes are damaged. The characteristic pathological manifestation of VRAMI is the presence of myocardial fibrosis(MF), wherein fibrotic cardiac tissue undergoes a loss of contractile and relaxation capacity, ultimately culminating in heart failure(HF) and significantly impacting the patient's prognosis.

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  • The SARS-CoV-2 virus has significantly impacted human health and the global economy, emphasizing the need for effective detection methods.
  • Researchers introduced a multilayered plasmonic nanotrap (MPNT) device that utilizes surface-enhanced Raman scattering (SERS) to identify single SARS-CoV-2 virus particles with high sensitivity.
  • The MPNT device can detect the virus's N protein at extremely low concentrations (as low as 1.25 × 10^−12 g/mL) within just one minute, and its design allows for future use against various infectious viruses.
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Objective: Recent studies have shown that gene alternative splicing (AS) and long noncoding RNAs (lncRNAs) are involved in diabetes mellitus (DM) and its complications. Currently, myo-inositol (MI) is considered as effective for the treatment of insulin resistance and lipid metabolism disorders in diabetes patients. We hope to better explore the potential roles of gene AS and lncRNAs in liver glucose and lipid metabolism in diabetes, as well as the effects of myo-inositol treatment, through transcriptome analysis.

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In recent years, the potential of stem cells (SCs) to differentiate into various types of cells, including β-cells, has led to a significant boost in development. The efficiency of this differentiation process and the functionality of the cells post-transplantation are crucial factors for the success of stem cell therapy in diabetes. Herein, this article reviews the current advances and challenges faced by stem cell differentiation into functional β-cells for diabetes treatment.

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  • - The stink bug Arma custos is a predatory insect used in biocontrol to combat harmful invasive pests, specifically lepidopteran and coleopteran species.
  • - A comprehensive genome assembly for A. custos was created using advanced sequencing and scaffolding methods, resulting in a genome size of 969.02 Mb with high completeness and a significant number of protein-coding genes.
  • - This high-quality genomic resource will assist future research on the biology, genetics, and functions of predatory bugs like A. custos.
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Although pancreas and islet cell transplantation are the only ways to prevent the late complications of insulin-dependent diabetes, a shortage of donors is a major obstacle to tissue and organ transplantation. Stem cell therapy is an effective treatment for diabetes and other pancreatic-related diseases, which can be achieved by inducing their differentiation into insulin-secreting cells. The liver is considered an ideal source of pancreatic cells due to its similar developmental origin and strong regenerative ability as the pancreas.

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College students experience ever-increasing levels of stress, leading to a wide range of health problems. In this context, monitoring and predicting students' stress levels is crucial and, fortunately, made possible by the growing support for data collection via mobile devices. However, predicting stress levels from mobile phone data remains a challenging task, and off-the-shelf deep learning models are inapplicable or inefficient due to data irregularity, inter-subject variability, and the "cold start problem".

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A palladium-catalyzed borylation of cyclic alkenyl chlorides with Bpin is reported. This transformation allows for the conversion of diverse cyclic alkenyl chlorides into synthetically versatile alkenyl boronates with moderate to excellent yields. The utility of this reaction has been demonstrated with practical Suzuki-Miyaura coupling and aziridination reactions, which allow access to functionalized olefins and valuable boron-substituted aziridines.

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  • - A new type of SERS substrate using a metal-insulator-metal (MIM) structure made of Ag nanoislands and silicon oxide has been developed to overcome issues with high cost and reproducibility in sensing applications.
  • - The substrate is created using simple and inexpensive methods involving evaporation and sputtering, yielding a significant enhancement factor (1.83 × 10) and a low limit of detection for rhodamine 6G molecules.
  • - This innovative SERS substrate outperforms conventional Ag nanoisland structures by 18 times in sensitivity, and demonstrates excellent reproducibility with a relative standard deviation of less than 9%.
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Characterization of atmospheric fine particulate matter (PM) in large cities has important implications for the study of their sources and formation mechanisms, as well as in developing effective measures to control air pollution. Herein, we report a holistic physical and chemical characterization of PM by combining surface-enhanced Raman scattering (SERS) with scanning electron microscopy (SEM) and electron-induced X-ray spectroscopy (EDX). PM particles were collected in a suburban area of Chengdu, a large city in China with a population over 21 million.

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DDAO (1,3-Dichloro-7-hydroxy-9,9-dimethyl-2(9H)-acridone) is a near-infrared (NIR) fluorophore that has received increasing attention in recent years, exhibiting near-infrared emission at 658 nm, low pKa (∼5.0), good water solubility and high quantum yield (Φ = 0.39).

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Alkynyl chlorides were found to be extraordinarily novel electrophiles, which could afford a single regioisomer of the [3+2] annulation adducts with cyclic ketimines by rhodium catalysis. The alkenyl chloride moiety in the products provided a valuable functional handle for further diverse transformations. Therefore, this research provided not only a synthetic protocol for accessing unsymmetrically substituted indenyl amines but also a highly divergent solution for decorating the substituting group by postmanipulation of the chloride.

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  • Particle contamination of photo masks poses a significant challenge in micro-nanofabrication, making analysis essential for effective control and elimination.
  • Raman spectroscopy combined with scanning electron microscopy (SEM) was employed to study particle contamination, revealing their vibrational modes and elemental composition.
  • The study identified and classified the particles into six clusters, providing insights into their chemical components and implications for improving mask cleaning processes.
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  • - Lithography is crucial for making integrated circuits and micro-devices, and the imaging objective lens is a key component; however, traditional curved lenses have limitations in field of view and system complexity.
  • - The paper introduces a new planar objective lens using optical negative refraction, enabling free optical axis and long depth of focus imaging, utilizing a hyperbolic metamaterial with silver and titanium dioxide.
  • - Tests show that this new lens achieves a high imaging resolution of 165 nm at a UV wavelength of 365 nm and demonstrates potential for effective cross-scale imaging and lowering costs for future nanofabrication technologies.
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Phosphatidylethanolamine binding protein 4 (PEBP4) is an understudied multifunctional small protein. Previous studies have shown that the expression of PEBP4 is increased in many cancer specimens, which correlates to cancer progression. The present study explored the mechanism by which PEBP4 regulates the growth and progression of hepatocellular carcinoma cells.

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Obesity often concurs with nonalcoholic fatty liver disease (NAFLD), both of which are detrimental to human health. Thus far, exercise appears to be an effective treatment approach. However, its effects cannot last long and, moreover, it is difficult to achieve for many obese people.

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Arrays of gold-silver (Au-Ag) bimetallic nanopillars were fabricated by a newly developed surface-plasmon lithography (SPL) and their enhancement properties as surface-enhanced Raman scattering (SERS) substrates have been studied. We demonstrated that the SPL is a low-cost and high efficiency method for the fabrication of SERS substrates with both high sensitivity and reproducibility. The nanopillars showed a good response in the detection of methylene blue molecules at a low concentration of 1.

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  • Paclitaxel (PTX) is a cancer drug whose effectiveness is often reduced by resistance, particularly due to low levels of the transporter SLCO1B3 which helps the drug enter cells.
  • Research has shown that activating AMP-activated protein kinase (AMPK) can increase SLCO1B3 levels and make tumor cells more sensitive to PTX.
  • Experiments indicated that using AMPK activators can improve SLCO1B3 expression and PTX efficacy in resistant A549 cells, suggesting strategies to overcome PTX resistance in cancer treatment.
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