92,136 results match your criteria: "National Center for Science Education; Oakland[Affiliation]"

ADSL promotes autophagy and tumor growth through fumarate-mediated Beclin1 dimethylation.

Nat Chem Biol

January 2025

Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Institute of Translational Medicine, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China.

As an enzyme with a critical role in de novo purine synthesis, adenylosuccinate lyase (ADSL) expression is upregulated in various malignancies. However, whether ADSL possesses noncanonical functions that contribute to cancer progression remains poorly understood. Here, we demonstrate that protein kinase R-like endoplasmic reticulum kinase (PERK) activated by lipid deprivation or ER stress phosphorylates ADSL at S140, leading to an enhanced association between ADSL and Beclin1.

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Tibetan Plateau and its surrounding mountains (TPSM) have experienced prominent glacier retreat since the Global Last Glacial Maximum, while the detailed deglaciation process remains unclear. To investigate the spatiotemporal pattern of the glacier retreat history, we compiled 196 moraines dating from 26.5 to 10 ka based on 994 boulder Be exposure age from seven regions on the TPSM and calculated the separated component Gaussians of moraine ages.

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A high-calorie diet and lack of exercise are the most important risk factors contributing to metabolic dysfunction-associated steatotic liver disease (MASLD) initiation and progression. The precise molecular mechanisms of mitochondrial function alteration during MASLD development remain to be fully elucidated. In this study, a total of 60 male C57BL/6J mice were maintained on a normal or amylin liver NASH (AMLN) diet for 6 or 10 weeks.

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Hsa_circ_0001304 promotes vascular neointimal hyperplasia accompanied by autophagy activation.

Commun Biol

January 2025

Department of Biochemistry and Molecular Biology, Key Laboratory of Neural and Vascular Biology, Ministry of Education, Hebei Key Laboratory of Forensic Medicine, Hebei Medical University, Shijiazhuang, 050017, China.

Aberrant autophagy in vascular smooth muscle cells (VSMCs) is associated with the progression of vascular remodeling diseases caused by neointimal hyperplasia. Platelet-derived growth factor-BB (PDGF-BB)-induced vascular remodeling is accompanied by autophagy activation, however, the involvement of circular RNAs (circRNAs) remains unclear. Here, we show the role of PDGF-BB-regulated hsa_circ_0001304 (circ-1304) in neointimal hyperplasia and its potential involvement in VSMC autophagy, while also elucidating the potential mechanisms.

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With the development of next-generation sequencing (NGS) technologies it became possible to simultaneously analyze millions of variants. Despite the quality improvement, it is generally still required to confirm the variants before reporting. However, in recent years the dominant idea is that one could define the quality thresholds for "high quality" variants which do not require orthogonal validation.

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Two-point contact is one of the fundamental problems of wheel-rail contact in switch area. The contact state and the distribution of forces are complex and essential points in wheel-rail relationship. Given the problem that the current dynamic wheel-rail contact state is challenging to detect, a theory to detect the two-point contact state of the wheel-rail in switch area using a discrete gauge column was presented and proved in the finite element model.

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Super-resolution (SR) neural networks transform low-resolution optical microscopy images into SR images. Application of single-image SR (SISR) methods to long-term imaging has not exploited the temporal dependencies between neighboring frames and has been subject to inference uncertainty that is difficult to quantify. Here, by building a large-scale fluorescence microscopy dataset and evaluating the propagation and alignment components of neural network models, we devise a deformable phase-space alignment (DPA) time-lapse image SR (TISR) neural network.

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Construction of a rodent neural network-skeletal muscle assembloid that simulate the postnatal development of spinal cord motor neuronal network.

Sci Rep

January 2025

Key Laboratory for Stem Cells and Tissue Engineering Ministry of Education, Guangdong Provincial Key Laboratory of Brain Function and Disease, Institute of Spinal Cord Injury, Department of Histology and Embryology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.

Neuromuscular diseases usually manifest as abnormalities involving motor neurons, neuromuscular junctions, and skeletal muscle (SkM) in postnatal stage. Present in vitro models of neuromuscular interactions require a long time and lack neuroglia involvement. Our study aimed to construct rodent bioengineered spinal cord neural network-skeletal muscle (NN-SkM) assembloids to elucidate the interactions between spinal cord neural stem cells (SC-NSCs) and SkM cells and their biological effects on the development and maturation of postnatal spinal cord motor neural circuits.

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Unexpected species diversity in the understanding of selenium-containing soil invertebrates.

Sci Rep

January 2025

Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains, College of Biology and Agricultural Resources, Hubei Zhongke Research Institute of Industrial Technology, Huanggang Normal University, Huanggang, 438000, Hubei, China.

Yutangba, situated in Enshi City, Hubei Province, is globally noted for its high selenium (Se) content. Soil invertebrates are essential to the functionality and services of terrestrial ecosystems, yet their community composition in this region remains under-explored. This study utilized environmental DNA metabarcoding to investigate the interrelations among environmental factors, soil invertebrate diversity, and community characteristics concerning soil Se content, pH, and moisture content in the region.

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Optimizing dental implant identification using deep learning leveraging artificial data.

Sci Rep

January 2025

Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Kagawa University, 1750-1, Ikenobe, Miki-cho, Kita-gun, Takamatsu, 761-0793, Kagawa, Japan.

This study aims to evaluate the potential enhancement in implant classification performance achieved by incorporating artificially generated images of commercially available products into a deep learning process of dental implant classification using panoramic X-ray images. To supplement an existing dataset of 7,946 in vivo dental implant images, a three-dimensional scanner was employed to create implant surface models. Subsequently, implant surface models were used to generate two-dimensional X-ray images, which were compiled along with original images to create a comprehensive dataset.

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With climate change projections indicating an increase in the frequency of extreme heat events and irregular rainfall patterns globally, the threat to global food security looms large. Terminal heat stress, which occurs during the critical reproductive stage, significantly limits lentil productivity. Therefore, there is an urgent need to improve lentil's resilience to heat stress to sustain production.

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Convergent evidence for the temperature-dependent emergence of silicification in terrestrial plants.

Nat Commun

January 2025

Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China.

Research on silicon (Si) biogeochemistry and its beneficial effects for plants has received significant attention over several decades, but the reasons for the emergence of high-Si plants remain unclear. Here, we combine experimentation, field studies and analysis of existing databases to test the role of temperature on the expression and emergence of silicification in terrestrial plants. We first show that Si is beneficial for rice under high temperature (40 °C), but harmful under low temperature (0 °C), whilst a 2 °C increase results in a 37% increase in leaf Si concentrations.

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Developments in Infectious Disease Molecular Diagnostics and the Impact on Health Care.

J Mol Diagn

February 2025

Infectious Disease Subdivision Leadership of the Association for Molecular Pathology, Rockville, Maryland; Department of Laboratory Medicine and Pathology, Mayo Clinic, Phoenix, Arizona.

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Systematic Literature Review on Public Health Impacts of Persistent Tic Disorders: Health Care Needs and Health Care Use.

Psychiatr Clin North Am

March 2025

Applied Research and Evaluation Team, Division of Human Development and Disability, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention (CDC), 4770 Buford Hwy S106-4, Atlanta, GA 30341, USA.

This study describes our systematic literature review documenting outcomes associated with persistent tic disorders (PTDs) and summarizes 15 articles comparing health care use between individuals with PTDs and a comparison group without PTDs. Only 2 studies included adults and only one study stratified findings by sociodemographic characteristics, precluding conclusions on health care disparities. Most children with PTDs had access to routine care, similar to children without PTDs, but needed and used more specialty health care, including mental health services, compared to children without PTDs.

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AI integration into wavelength-based SPR biosensing: Advancements in spectroscopic analysis and detection.

Anal Chim Acta

March 2025

Artificial Intelligence Research Center, Chang Gung University, Taoyuan, 333323, Taiwan; Department of Artificial Intelligence, College of Intelligent Computing, Chang Gung University, Taoyuan, 333323, Taiwan. Electronic address:

Background: In recent years, employing deep learning methods in the biosensing area has significantly reduced data analysis time and enhanced data interpretation and prediction accuracy. In some SPR fields, research teams have further enhanced detection capabilities using deep learning techniques. However, the application of deep learning to spectroscopic surface plasmon resonance (SPR) biosensors has not been reported.

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Frozen versus fresh embryo transfer in women with low prognosis for in vitro fertilisation treatment: pragmatic, multicentre, randomised controlled trial.

BMJ

January 2025

State Key Laboratory of Reproductive Medicine and Offspring Health, Centre for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Jinan, China

Objective: To test the hypothesis that a freeze-all strategy would increase the chance of live birth compared with fresh embryo transfer in women with low prognosis for in vitro fertilisation (IVF) treatment.

Design: Pragmatic, multicentre, randomised controlled trial.

Setting: Nine academic fertility centres in China.

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Genomes reveal pervasive distant hybridization in nature among cyprinid fishes.

Gigascience

January 2025

State Key Laboratory of Developmental Biology of Freshwater Fish, Engineering Research Center of Polyploid Fish Reproduction and Breeding of the State Education Ministry, College of Life Sciences, Hunan Normal University, Changsha 410081, China.

Background: Genomic data have unveiled a fascinating aspect of the evolutionary past, showing that the mingling of different species through hybridization has left its mark on the histories of numerous life forms. However, the relationship between hybridization events and the origins of cyprinid fishes remains unclear.

Results: In this study, we generated de novo assembled genomes of 8 cyprinid fishes and conducted phylogenetic analyses on 24 species.

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Colorectal cancer (CRC), one of the diseases posing a threat to global health, according to the latest data, is the third most common cancer globally and the second leading cause of cancer-related deaths. The development and refinement of novel structures of small molecular compounds play a crucial role in tumor treatment and overcoming drug resistance. In this study, our objective was to screen and characterize novel compounds for overcoming drug resistance via the B Lymphoma Mo-MLV insertion region 1 (Bmi-1) reporter screen assay.

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Background: The 2006 National Institute of Allergy and Infectious Disease/Food Allergy and Anaphylaxis Network (NIAID/FAAN) anaphylaxis criteria are widely used in clinical care and research. In 2020, the World Allergy Organization (WAO) published modified criteria that have not been uniformly adopted. Different criteria contribute to inconsistent care and research outcomes.

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Chalcogen dihydrobenzofuran compounds as potential neuroprotective agents: an in vitro and in silico biological investigation.

Biochimie

January 2025

Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Graduate Program in Biochemistry and Bioprospecting (PPGBBio), Chemical, Pharmaceutical, and Food Sciences Center (CCQFA), Federal University of Pelotas (UFPel), 96010-900 RS, Brazil. Electronic address:

Oxidative stress arises from an imbalance between reactive species (RS) production and the antioxidant defense, increasing the brain susceptibility to neurodegenerative and psychiatric diseases. Besides, changes in the expression or activity of neurotransmitter metabolism enzymes, such as monoamine oxidases (MAO), are also associated with mental disorders, including depression. Considering this, antioxidant and MAO-A activity inhibitory potential of six 2,3-chalcogenodihydrobenzofurans (2,3-DHBF) was investigated through in vitro and in silico tests.

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National Survey of Lung Cancer Screening Eligibility in United States Veterans.

Am J Prev Med

January 2025

Veterans Health Administration-Tennessee Valley Healthcare System, Geriatric Research, Education and Clinical Center (GRECC) and the VETWISE-LHS Center of Innovation, Nashville, TN; Department of Medicine, Vanderbilt University Medical Center, Nashville, TN; Center for Clinical Quality and Implementation Research, Vanderbilt University Medical Center, Nashville, TN; Department of Health Policy, Vanderbilt University Medical Center, Nashville, TN.

Introduction: Lung cancer screening is underutilized, especially in rural areas where lung cancer mortality is high. Approximately 11.2% of the United States (US) population over age 50 meet the United States Preventive Services Task Force (USPSTF) 2021 lung cancer screening eligibility criteria; the proportion of eligible Veterans is unknown.

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Optimizing interventional therapy: A homogeneous lipiodol formulation of Tirapazamine and Sorafenib responsive to post-embolization microenvironment.

J Control Release

January 2025

State Key Laboratory of Infectious Disease Vaccine Development, Xiang An Biomedicine Laboratory, National Innovation Platform for Industry-Education Integration in Vaccine Research, Fujian Engineering Research Center of Molecular Theranostic Technology, Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China. Electronic address:

Transcatheter arterial chemoembolization (TACE) is the principal treatment option for patients with unresectable hepatocellular carcinoma (HCC). However, the hypoxic microenvironment following TACE can promote angiogenesis and suppress tumor ferroptosis, resulting in an unfavorable prognosis. Tirapazamine (TPZ), a hypoxia-activated prodrug with specific cytotoxicity for hypoxic cells, making it a potential candidate for TACE.

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A multi-agent reinforcement learning framework for cross-domain sequential recommendation.

Neural Netw

January 2025

Key Laboratory of Knowledge Engineering with Big Data (the Ministry of Education of China), Hefei University of Technology, Hefei, 230009, Anhui, China. Electronic address:

Sequential recommendation models aim to predict the next item based on the sequence of items users interact with, ordered chronologically. However, these models face the challenge of data sparsity. Recent studies have explored cross-domain sequential recommendation, where users' interaction data across multiple source domains are leveraged to enhance recommendations in data-sparse target domains.

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Rationally manipulating molecular planarity to improve molar absorptivity, NIR-II brightness, and photothermal effect for tumor phototheranostics.

Biomaterials

January 2025

Lab of Molecular Imaging and Translational Medicine (MITM), Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, School of Life Science and Technology, Xidian University & International Joint Research Center for Advanced Medical Imaging and Intelligent Diagnosis and Treatment, Xi'an, Shaanxi, 710126, China. Electronic address:

The secondary near-infrared region (NIR-II) fluorescence imaging-guided photothermal therapy (PTT) offers a noninvasive and light-controllable treatment option for deep-seated cancers. However, the development of NIR-II photothermal agents (NIR-II PTAs) that possess the desired properties of high molar absorption coefficient (ε), fluorescence quantum yield (QY), and photothermal conversion efficiency (PCE) remain a challenge due to the contradiction between radiative and nonradiative processes. Herein, we propose a novel side-chain heteroatom substitution engineering strategy to simultaneously enhance ε, QY, and PCE by modifying the molecular planarity.

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A mitochondria-targeted nanozyme with enhanced antioxidant activity to prevent acute liver injury by remodeling mitochondria respiratory chain.

Biomaterials

January 2025

Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience and CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190, PR China. Electronic address:

Developing nanomedicines with enhanced activity to scavenge reactive oxygen species (ROS) has emerged as a promising strategy for addressing ROS-associated diseases, such as drug-induced liver injury. However, designing nanozymes that not only remove ROS but also accelerate the repair of damaged liver cells remains challenging. Here, a two-pronged black phosphorus/Ceria nanozyme with mitochondria-targeting ability (TBP@CeO) is designed.

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