443,678 results match your criteria: "PR China; Chinese Academy of Medical Science and Peking Union Medical College[Affiliation]"

TaqMan-based quantitative real-time polymerase chain reaction assay to detect porcine circovirus-like virus.

Pol J Vet Sci

December 2024

Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China. Email:

The aim of this study was to develop a rapid, sensitive and highly specific TaqMan quantitative real-time polymerase chain reaction PCR (qPCR) assay for porcine circovirus-like virus (PCLV). The primers and probe were designed based on the conserved regions of the PCLV ORF4 gene. The assay has a good detection performance (y=-3.

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Tuning the Selectivity in the Nonoxidative Alkane Dehydrogenation Reaction by Potassium-Promoted Zeolite-Encapsulated Pt Catalysts.

JACS Au

December 2024

Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education, Tsinghua University, Beijing 100084, P. R. China.

The significance of the nonoxidative dehydrogenation of middle-chain alkanes into corresponding alkenes is increasing in the context of the world's declining demands on transportation fuels and the growing demand for chemicals and materials. The middle-chain alkenes derived from the dehydrogenation reaction can be transformed into value-added chemicals in downstream processes. Due to the presence of multiple potential reaction sites, the reaction mechanism of the dehydrogenation of middle-chain alkanes is more complicated than that in the dehydrogenation of light alkanes, and there are few prior studies on elucidating their detailed structure-reactivity relationship.

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Lighting Up and Identifying Metal-Binding Proteins in Cells.

JACS Au

December 2024

Department of Chemistry and HKU-CAS Joint Laboratory of Metallomics for Health and Environment, The University of Hong Kong, Pokfulam Road, Hong Kong, SAR, P.R. China.

Metal ions, either essential or therapeutic, play critical roles in life processes or in the treatment of diseases. Proteins and enzymes are involved in metal homeostasis and the action of metallodrugs. Imaging and identifying these metal-binding proteins will facilitate the elucidation of metal-mediated life processes.

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Sequential Pore Functionalization in MOFs for Enhanced Carbon Dioxide Capture.

JACS Au

December 2024

Materials Discovery Laboratory (MaD Lab), Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States.

The capture of carbon dioxide (CO) is crucial for reducing greenhouse emissions and achieving net-zero emission goals. Metal-organic frameworks (MOFs) present a promising solution for carbon capture due to their structural adaptability, tunability, porosity, and pore modification. In this research, we explored the use of a copper (Cu(II))-based MOF called .

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Machine-Learning-Aided Engineering Hemoglobin as Carbene Transferase for Catalyzing Enantioselective Olefin Cyclopropanation.

JACS Au

December 2024

Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130023, P. R. China.

In this study, we developed a machine-learning-aided protein design strategy for engineering hemoglobin (VHb) as carbene transferase. A Natural Language Processing (NLP) model was used for the first time to construct an algorithm (EESP, enzyme enantioselectivity score predictor) and predict the enantioselectivity of VHb. We identified critical amino acid residue sites by molecular docking and established a simplified mutation library by site-saturated mutagenesis.

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Objective: This study examines the relationship between maternal psychological aggression (PA) and preschoolers' problem behaviors (PB), focusing on the mediating roles of psychological resilience (PR) and self-control (SC), and gender differences.

Methods: Mothers of 1141 preschoolers (52.9% boys, 47.

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Nonemissive Iridium(III) Solvent Complex as a Self-Reporting Photosensitizer for Monitoring Phototherapeutic Efficacy in a "Signal on" Mode.

Chem Biomed Imaging

December 2024

Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China.

Photodynamic therapy (PDT) has long been receiving increasing attention for the minimally invasive treatment of cancer. The performance of PDT depends on the photophysical and biological properties of photosensitizers (PSs). The always-on fluorescence signal of conventional PSs makes it difficult to real-time monitor phototherapeutic efficacy in the PDT process.

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Glioblastoma multiforme (GBM) is among the most challenging malignant brain tumors, making the development of new treatment strategies highly necessary. Glioma stem cells (GSCs) markedly contribute to drug resistance, radiation resistance, and tumor recurrence in GBM. The therapeutic potential of nanomaterials targeting GSCs in GBM urgently needs to be explored.

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Background: The ciliary muscle is known to play a part in presbyopia, but the mechanism has not received a comprehensive review, which this study aims to achieve. We examined relevant articles published from 1975 through 2022 that explored various properties of the muscle and related tissues in humans and rhesus monkeys. These properties include geometry, elasticity, rigidity, and composition, and were studied using a range of imaging technologies, computer models, and surgical methods.

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Comparison of activated sludge and virus interactions in aerobic and anaerobic membrane bioreactors.

iScience

December 2024

Shaanxi Key Laboratory of Environmental Engineering, School of Environmental and Municipal Engineering, Xi'an University Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, P.R. China.

Membrane bioreactors (MBRs) are effective sewage treatment technologies, yet the differences in virus removal efficiency between aerobic (AeMBR) and anaerobic membrane bioreactors (AnMBR), remain inadequately understood. This study compared the virus removal efficiency of AeMBR and AnMBR, focusing on the interactions between aerobic (AeS) and anaerobic (AnS) activated sludge and viruses in the sewage treatment process. Results showed average log removal values (LRVs) for MS2 of 2.

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Uncovering novel therapeutic clues for hypercoagulable active ulcerative colitis: novel findings from old data.

Gastroenterol Rep (Oxf)

December 2024

Department of Cardiovascular Surgery, Shenshan Medical Center, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Shanwei, Guangdong, P. R. China.

Background: Hypercoagulability has been shown to act as an important component of ulcerative colitis (UC) pathogenesis and disease activity, and is strongly correlated with the occurrence of venous thromboembolism (VTE). This study aimed at providing novel therapeutic clues for hypercoagulable active UC.

Methods: The coagulation score model was developed using VTE cohorts, and the predictive performance of this model was evaluated by coagulation subtypes of UC patients, which were clustered by the unsupervised method.

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A Regiospecific Co-Assembly Method to Functionalize Ordered Mesoporous Metal Oxides with Customizable Noble Metal Nanocrystals.

ACS Cent Sci

December 2024

Department of Chemistry, Shanghai Stomatological Hospital & School of Stomatology, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, P. R. China.

An efficient regiospecific co-assembly (RSCA) strategy is developed for general synthesis of mesoporous metal oxides with pore walls precisely decorated by highly dispersed noble metal nanocrystals with customized parameters (diameter and composition). It features the rational utilization of the specific interactions between hydrophilic molecular precursors, hydrophobic noble metal nanocrystals, and amphiphilic block copolymers, to achieve regiospecific co-assembly as confirmed by molecular dynamics simulations. Through this RSCA strategy, we achieved a controllable synthesis of a variety of functional mesoporous metal oxide composites (e.

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Loss of Fascin2 increases susceptibility to cisplatin-induced hearing impairment and cochlear cell apoptosis in mice.

J Otol

July 2024

Department of Biochemistry and Molecular Biology, and Key Laboratory for Genetic Hearing Disorders in Shandong, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, PR China.

Objectives: Deletion of gene in mice has been linked to progressive hearing loss and degeneration of cochlear cells. Cisplatin, an antitumor drug, can cause various side effects, including ototoxicity. The aim of this study was to investigate the effects of on cisplatin-induced hearing impairment in mice and to explore the possible mechanism.

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Objective: To evaluate the plasma levels of the otoconial proteins, otoconin-90 and otolin-1, in individuals diagnosed with vestibular neuritis (VN) and determine the feasibility of using these proteins as biomarkers for VN.

Methods: In this preliminary study, 30 patients diagnosed with VN and 70 healthy individuals were recruited and followed to confirm whether they had benign paroxysmal positional vertigo (BPPV) during the following time. The recorded data included measurements of height, weight, and history of diabetes mellitus or hypertension.

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Mechanically Stable and Damage Resistant Freestanding Ultrathin Silver Nanowire Films with Closely Packed Crossed-Lamellar Structure.

Precis Chem

December 2024

Department of Chemistry, New Cornerstone Science Laboratory, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China.

One-dimensional (1D) functional nanowires are widely used as nanoscale building blocks for assembling advanced nanodevices due to their unique functionalities. However, previous research has mainly focused on nanowire functionality, while neglecting the structural stability and damage resistance of nanowire assemblies, which are critical for the long-term operation of nanodevices. Biomaterials achieve excellent mechanical stability and damage resistance through sophisticated structural design.

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Thermal cracking is one of the serious issues that deteriorates the processibility of laser powder bed fusion (LPBF) high-strength aluminum components. To date, the effects of processing parameters on crack formation are still not well understood. The purpose of this study is to understand the correlation between the thermal cycle and the hot cracking during LPBF of Al-Cu-Mg-Mn alloys.

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Synergy of Copper Doping and Carbon Defect Engineering in Promoting C-C Coupling for Enhanced CO Photoreduction to Ethanol Activity.

ACS Appl Mater Interfaces

December 2024

Key Laboratory of Industrial Ecology and Environment Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, PR China.

Photocatalytic conversion of carbon dioxide (CO) to fuel provides an ideal pathway to achieving carbon neutrality. One significant hindrance in achieving the reduction of CO to higher energy density multicarbon products (C) was the difficulty in coupling C-C bonds efficiently. Copper (Cu) is considered the most suitable metal catalyst for C-C coupling to form C products in the CO reduction reaction (CORR), but it encounters challenges such as low product selectivity and slow catalytic efficiency.

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Prognostic value of albumin-bilirubin grade in lung cancer: a meta-analysis.

J Cardiothorac Surg

December 2024

Department of Thoracic Surgery/Lung Cancer Center, China Hospital, Sichuan University, Chengdu, 610061, P.R. China.

Purpose: To clarify the prognostic role of pretreatment albumin-bilirubin (ALBI) grade in lung cancer patients.

Methods: The PubMed, EMBASE, Web of Science and CNKI databases were searched up to April 20, 2024. Primary outcomes included the overall survival (OS), progression-free survival (PFS) and cancer-specific survival (CSS).

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This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/policies/article-withdrawal).

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Corrigendum to "Transcriptomics reveals crowding stress inhibit the immune defense of the head kidney of the pearl gentian grouper juvenile through NF-κB signal pathway" (162), January 2025, 105299.

Dev Comp Immunol

December 2024

State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong, 266071, PR China; Mingbo Aquatic Products Co., Ltd, Yantai, 261400, PR China. Electronic address:

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The proliferation of weeds, pests, and plant diseases in crop cultivation has driven the increased application of herbicide lactofen, insecticide acetamiprid, and fungicide carbendazim, contributing to environmental pollution. Microorganisms are requently employed to remove pesticide residues from the environment. However, Liquid bacterial agents encounter difficulties in transportation and preservation during application and the current immobilized bacterial agents have a single degradation function.

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Andrographolide mitigates neurotoxicity induced by lipopolysaccharide or amyloid through modulation of miR-222-mediated p62 and NF-κBp65 expression.

Eur J Pharmacol

December 2024

Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Hangzhou medical college, Hangzhou, Zhejiang 310013, P.R. China. Electronic address:

MicroRNA-222 (miR-222) plays a crucial role in neurodegeneration and is up-regulated in Alzheimer's disease (AD) patients. Andrographolide (Andro) has been reported to have anti-inflammatory and neuroprotective effects, showing potential for treating AD. The relationship between Andro's anti-AD mechanism and the regulation of miR-222 was discussed in this study.

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Colorectal cancer (CRC) is the second leading cause of cancer-related deaths worldwide. Due to the poor therapeutic efficacy of CRC treatments and poor prognosis of the disease, effective treatment strategies are urgently needed. As long-term proteotoxic stress is a major cause of cell death, agents that induce proteotoxic stress offer a promising strategy for cancer intervention.

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Tumor-derived CCL15 regulates RNA mA methylation in cancer-associated fibroblasts to promote hepatocellular carcinoma growth.

Cancer Lett

December 2024

Department of Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Digestive Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, P. R. China. Electronic address:

Hepatocellular carcinoma (HCC) is a lethal malignancy characterized by rapid growth. The interaction between tumor cells and cancer-associated fibroblasts (CAFs) significantly influences HCC progression. CCL15, a CC chemokine family member, is predominantly expressed in HCC and strongly correlates with tumor size, indicating its critical role in HCC growth.

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