Publications by authors named "ChangYu Liu"

Marine natural products are increasingly utilized in nutrition, cosmetics, and medicine, garnering significant attention from researchers globally. With the expansion of marine resource exploration in recent years, the demand for marine natural products has risen, necessitating rapid and cost-effective activity evaluations using model organisms. Zebrafish, a valuable vertebrate model, has become an efficient tool for screening and identifying safe, active molecules from marine natural products.

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Background: Investigating the safe range of orthodontic tooth movement is essential for maintaining oral and maxillofacial stability post-treatment. Although clear aligners rely on pre-treatment digital models, their effect on periodontal hard tissues remains uncertain. By integrating CBCT-derived cervical and root data with crown data from digital intraoral scans, a three-dimensional (3D) fusion model may enhance precision and safety.

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  • T cells are crucial in fighting cancer, and their growth and development are influenced by energy metabolism.
  • Blocking immune checkpoints like PD-1 and CTLA-4 shows promise as a cancer treatment, with increasing research on the role of CD28 in T cell function.
  • The study reviewed the interactions of key pathways (PD-1/CTLA-4/CD28 and PI3K/AKT/mTOR) to support better immunotherapy strategies for cancer patients.
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  • Articular cartilage defects affect both cartilage and underlying bone, necessitating a specialized scaffold to address the distinct needs of each tissue type.
  • This study employed 3D printing to create a tri-phasic scaffold made of PLA/PCL-PLGA/Mg(OH)₂, which consisted of layers for cartilage, an osteochondral interface, and bone, all filled with Velvet antler polypeptides (VAP).
  • Experimental results revealed that this scaffold not only supports new bone formation but also encourages cartilage cell development, leading to improved healing of osteochondral defects in animal models when combined with fibrocartilage stem cells (FCSCs).
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  • Electromagnetic fields (EMFs), particularly low-frequency sinusoidal EMFs at 15 Hz and 0.4-1 mT, show beneficial effects for treating osteoporosis by stimulating bone marrow mesenchymal stem cells (BMSCs).* -
  • Research indicates that the miRNA miR-34b-5p is downregulated in response to these EMFs, and its modulation affects the osteogenic differentiation of BMSCs, with mimic transfection hindering and inhibitor transfection enhancing this process.* -
  • Further studies reveal that the miR-34b-5p affects bone health through its regulation of the STAC2 gene, suggesting that targeting the miR-34b-5p/ST
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Unlabelled: Pain is the leading symptom for most individuals with osteoarthritis (OA), a complex condition marked by joint discomfort. Recently, the dynamic interplay between the nervous and immune systems has become a focal point for understanding pain regulation. Despite this, there is still a substantial gap in our comprehensive understanding of the neuroimmune interactions and their effects on pain in OA.

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Background: The method for compressing hemorrhagic sites after transradial access has been a topic of interest, yet definitive guidelines remain elusive. This study aims to address this gap by optimizing the mechanical compression hemostasis protocol after transradial access.

Methods: This retrospective analysis included 300 patients from the Department of Cerebrovascular Diseases, Shanghai Fourth People's Hospital affiliated to Tongji University, who underwent transradial access for cerebrovascular angiography.

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Cardio-cerebrovascular disease has seen a rapid rise in recent years, with Heart Failure (HF) - a terminal stage of various cardiovascular diseases - also on the rise. HF has a complex pathogenesis involving multiple factors, such as inflammation, fibrosis, and oxidative stress. Due to its unique reverse shear mechanism, HF exhibits distinct expression patterns across different diseases.

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A Fe-Co dual-metal co-doped N containing the carbon composite (FeCo-HNC) was prepared by adjusting the ratio of iron to cobalt as well as the pyrolysis temperature with the assistance of functionalized silica template. FeCo-HNC, which was formed with 1D carbon nanotubes and 2D carbon nanosheets including a rich mesoporous structure, exhibited outstanding oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) catalytic activities. The ORR half-wave potential is 0.

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Ternary topological insulators have attracted worldwide attention because of their broad application prospects in fields such as magnetism, optics, electronics, and quantum computing. However, their potential and electrochemical mechanisms in sodium ion batteries (SIBs) and hybrid capacitors (SIHCs) have not been fully studied. Herein, a composite material comprising vacancy-defects ternary topological insulator BiSeTe encapsulated in mesoporous carbon spheres (BiSeTe@C) is designed.

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Silibinin is a flavonoid compound extracted from the seeds of (L.) Gaertn. It has the functions of liver protection, blood-lipid reduction and anti-tumor effects.

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  • Osteoarthritis (OA) is a complex joint disease, and this study investigates the role of the infrapatellar fat pad (IFP) to better understand its development and potential treatment options.
  • Researchers used advanced techniques like single-cell RNA sequencing to analyze samples from OA patients and healthy controls, revealing over 49,674 cells across 11 cell types in the IFP.
  • Key findings include the identification of pro-inflammatory interstitial inflammatory fibroblasts (iiFBs) and various adipocyte subtypes, suggesting that iiFBs play a significant role in OA progression through the MK signaling pathway, which may be targeted for future therapies.
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Objective: Idiopathic pulmonary fibrosis (IPF) is a progressive and irreversible interstitial lung disease with a poor prognosis. Alpinetin (ALP), derived from Alpinia katsumadai Hayata, has shown potential as a therapeutic measure of various diseases. However, the utilization of ALP in managing pulmonary fibrosis and its underlying mechanisms are still not fully understood.

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Four previously undescribed and highly oxygenated α-pyrone-containing mycotoxins designated citreoviridins (E‒H), and an unreported eremophilane-type sesquiterpenoid namely aureoterrolide N, were isolated from the culture broth of Aspergillus aureoterreus. Those isolates were inferred from extensive spectroscopic methods and theoretical computation, where their absolute configurations were unambiguously determined by coupling constants following an empirical rule for the acyclic vicinal diol, theoretical ECD calculation, and NMR computation using the GIAO method and DP4 analysis. Among them, citreoviridins E‒H are four stereoisomers of a citreoviridin derivative, featuring a methylated α-pyrone, an oxidized polyene linker, and a tetrahydrofuran ring.

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Introduction: Lung adenocarcinoma (LUAD) is a major health concern worldwide. Single-cell RNA-sequencing (scRNA-seq) provides a valuable platform for exploring the intratumoral heterogeneity in LUAD and holds great potential for facilitating the development and application of personalized therapeutic approaches.

Methods: The TCGA-LUAD (n = 503), GSE68465 (n = 442), GSE72094 (n = 398), and GSE26939 (n = 115) datasets were retrieved for prognostic assessment.

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In this work, potassium acetate (KAc) was added during the synthesis of a Zn-Fe based metal-organic framework (Fe-ZIF-8) to increase the fixed amount of Fe while simultaneously enhancing the number of pores. Electrospinning was utilized to embed KAc-modified Fe-ZIF-8 (Fe-ZIF-8-Ac) into the polyacrylonitrile nanofiber mesh, to obtain a network composite (Fe@NC-Ac) with hierarchical porous structure. Fe@NC-Ac was co-pyrolyzed with thiourea, resulting in Fe, N, S co-doped carbon electrocatalyst.

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Olfactory learning is widely regarded as a substrate for animal survival. The exact brain areas involved in olfactory learning and how they function at various stages during learning remain elusive. Here, we investigate the role of the lateral entorhinal cortex (LEC) and the posterior piriform cortex (PPC), two important olfactory areas, in aversive olfactory learning.

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Fe-based polyanionic sulfate materials are one of the most promising candidates for large-scale applications in sodium-ion batteries due to their low cost and excellent electrochemical performance. Although great achievements have been gained on a series of NaFe(SO) (NFSO-x, 1.5 ≤ x ≤ 2.

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Hexavalent chromium (Cr(VI)) is ubiquitous in natural environments, whereas its role in the transformation of coexisting contaminants may have been overlooked. In this work, it was reported for the first time that the irradiation of Cr(VI) by solar light (solar light/Cr(VI) system) could effectively degrade various micropollutants with different structures. The removal efficiency of selected micropollutants was increased by 13.

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Background: Currently, tuberculous pleurisy (TP) remains a serious problem affecting global public health, including in China. Our purpose was to comprehensively understand and identify the incidence of TP in mainland China between 2005 and 2018.

Methods: The data on registered TP cases from 2005 to 2018 were acquired from the National Tuberculosis Information Management System.

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Although the piriform cortex (PC) has been previously implicated as a critical node for seizure generation and propagation, the underlying neural mechanism has remained unclear. Here, we found increased excitability in PC neurons during amygdala kindling acquisition. Optogenetic or chemogenetic activation of PC pyramidal neurons promoted kindling progression, whereas inhibition of these neurons retarded seizure activities induced by electrical kindling in the amygdala.

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Biofilm-based biological nitrification is widely used for ammonia removal, while hasn't been explored for ammonia analysis. The stumbling block is the coexist of nitrifying and heterotrophic microbes in real environment resulting in non-specific sensing. Herein, an exclusive ammonia sensing nitrifying biofilm was screened from natural bioresource, and a bioreaction-detection system for the on-line analysis of environmental ammonia based on biological nitrification was reported.

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  • The presence of p-arsanilic acid (p-ASA) in the environment is concerning because it can lead to the formation of toxic inorganic arsenic, particularly the more harmful As(III).
  • A new study explored how effectively p-ASA and As(III) can be oxidized using a process involving Fe(II) and peracetic acid (PAA), finding that p-ASA degrades quickly in this method, while PAA alone is less effective.
  • The study reveals that the Fe(II)/PAA process can remove over 80% of total arsenic by turning p-ASA primarily into less harmful compounds, highlighting its potential for improving arsenic treatment technologies.
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Biochemical oxygen demand (BOD) is a water quality parameter of vital importance. Rapid BOD analysis methods have emerged to simplify the five-day BOD (BOD) measurement protocol. However, their universal implementations are restricted by the tricky environmental matrix (including environmental microbes, contaminants, ionic compositions, etc.

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Osteoarthritis (OA), the most common chronic inflammatory joint disease, is characterized by progressive cartilage degeneration, subchondral bone sclerosis, synovitis, and osteophyte formation. Metformin, a hypoglycemic agent used in the treatment of type 2 diabetes, has been evidenced to have anti-inflammatory properties to treat OA. It hampers the M1 polarization of synovial sublining macrophages, which promotes synovitis and exacerbates OA, thus lessening cartilage loss.

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