Publications by authors named "Xudong Guo"

Background: Clinical assessments of motor symptoms rely on observations and subjective judgments against standardized scales, leading to variability due to confounders. Improving inter-rater agreement is essential for effective disease management.

Objective: We developed an objective rating system for Parkinson's disease (PD) that integrates computer vision (CV) and machine learning to correct potential discrepancies among raters while providing the basis for model performance to gain professional acceptance.

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Objective: To explore the characteristics of cellular senescence in human auricular chondrocytes during long-term in vitro culture and to evaluate the effects of anti-senescence treatments on enhancing their chondrogenic function.

Methods: Auricular chondrocytes exhibited senescence-related characteristics after prolonged expansion in culture. To identify senescence inducers, transcriptome sequencing was performed, with findings corroborated by transmission electron microscopy analyses.

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Climate change is shifting optimal habitats for medicinal plants, potentially compromising the efficacy and therapeutic value of herbal remedies. Global warming and increased extreme weather events threaten the sustainability and pharmaceutical integrity of Angelica sinensis (Oliv.) Diels (A.

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The rapid expansion of reservoirs, coupled with increasing eutrophication, has profoundly influenced regional and global carbon cycles. To precisely assess the carbon sink potential of reservoirs, it is crucial to quantify the decomposition of endogenous particulate organic carbon (POC) during the deposition and sinking of particulate matter in reservoirs. This is particularly important in the context of rising temperatures and intensified human activities.

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With regard to the low production of aromatic monomers generated from renewable resources, improving the selective CC bond cleavage in lignin could be the solution. Here, a novel CTF-Bi cluster photocatalyst was firstly prepared by hydrothermal method. A series of Bi/CTF composite photocatalysts varying in Bi cluster content were synthesized using confined growth techniques.

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Droplet-based bioprinting (DBB) allows for high precision, noncontact, and on-demand distribution of bioinks, hence it has been widely utilized in the preparation of bacteria-laden living materials (BLMs). Nonetheless, discontinuous ink deposition makes it challenging to fabricate large-sized intact living structures via this technique. Herein, we explore the way of using DBB to construct centimeter-scale BLMs with bespoke geometries, and further demonstrate its potential applicability in sensing-responsive device by integrating engineered bacteria.

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Article Synopsis
  • - The study aimed to compare the biomechanical performance of polyetheretherketone (PEEK) and titanium alloys in fixation systems for reconstructing mandibular defects after surgeries due to tumors or trauma using finite element analysis.
  • - In the analysis, PEEK materials (including unmodified, glass fiber-reinforced, and carbon fiber-reinforced) generated more stress on the mandible than titanium alloys, with glass fiber-reinforced PEEK being particularly problematic as it exceeded the mandible’s yield strength.
  • - The conclusion was that carbon fiber-reinforced PEEK showed better stress distribution and stability, making it the most suitable material for mandibular defect repair in fixation systems, as prolonged low stress can lead to bone issues.*
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This study investigates NiTi-CoCr hybrid carotid artery stents to enhance mechanical properties over NiTi-only designs. Different configurations (24NiTi, 20NiTi-4CoCr, 16NiTi-8CoCr, and 12NiTi-12CoCr) were evaluated through radial compression and bending simulations. The 12NiTi-12CoCr stent showed the highest radial support (39.

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Background: The efficiency of mesenchymal stem cells (MSCs) in treating myocardial infarction (MI) remains inconsistent, which limits their therapeutic applications. Therefore, exploring the mechanism for the inconsistent efficacy of MSCs and identification the criteria for screening MSCs are important for improving the efficiency of MSCs.

Methods: Mouse model after MI was utilized to test the role of MSCs from different donors and the functional subpopulation in improving cardiac function.

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In a retrospective analysis of clinical data from 587 DLBCL (diffuse large B-cell lymphoma) patients in China, 13.8% of cases were associated with HBV (hepatitis B virus) infection, leading to distinct clinical features and poorer prognosis. Moreover, HBV infection has a more pronounced impact on the survival of the GCB (germinal center B-cell-like) type DLBCL patients compared to the ABC (activated B-cell-like) type.

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Article Synopsis
  • The paper discusses a self-powered, flexible input panel that can recognize all 26 letters, designed for extreme environments.
  • It utilizes a paper mask over a triboelectric nanogenerator to capture complex electrical signals which help in letter recognition.
  • The research achieved a maximum recognition rate of 88.7% overall and 100% for certain letters, with further specifications proposed to enhance recognition accuracy for letters that were initially challenging.
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Article Synopsis
  • Single-cell RNA sequencing (scRNA-seq) allows for detailed analysis of individual cell transcriptomes, making it essential for understanding complex cellular diversity and behavior patterns in heterogeneous datasets.
  • A new deep learning algorithm called scDFN significantly improves single-cell clustering by using a fusion network strategy, which combines an autoencoder and an improved graph autoencoder for better analysis of gene expression and topological features.
  • Comparative tests show that scDFN outperforms existing clustering methods, as evidenced by superior metrics like Normalized Mutual Information (NMI) and Adjusted Rand Index (ARI), and it shows strong performance across various datasets while handling batch effects well.
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Protein-metal ion interactions play a central role in the onset of numerous diseases. When amino acid changes lead to missense mutations in metal-binding sites, the disrupted interaction with metal ions can compromise protein function, potentially causing severe human ailments. Identifying these disease-associated mutation sites within metal-binding regions is paramount for understanding protein function and fostering innovative drug development.

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Article Synopsis
  • Researchers created new molecular glass photoresists with pyrene cores (Pyr-8Boc and Pyr-4Boc) to improve lithography techniques.
  • The Pyr-4Boc variant outperformed others, allowing for the creation of fine patterns (25 nm) and demonstrated high etch selectivity against silicon.
  • Additionally, the study explored the lithography mechanism and electron-transfer reactions, providing insights into developing more sensitive and durable photoresists for electron beam lithography (EBL).
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Motivation: The asymmetrical distribution of expressed mRNAs tightly controls the precise synthesis of proteins within human cells. This non-uniform distribution, a cornerstone of developmental biology, plays a pivotal role in numerous cellular processes. To advance our comprehension of gene regulatory networks, it is essential to develop computational tools for accurately identifying the subcellular localizations of mRNAs.

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Background: Multi-channel acquisition systems of brain neural signals can provide a powerful tool with a wide range of information for the clinical application of brain computer interfaces. High-throughput implantable systems are limited by size and power consumption, posing challenges to system design.

Objective: To acquire more comprehensive neural signals and wirelessly transmit high-throughput brain neural signals, a FPGA-based acquisition system for multi-channel brain nerve signals has been developed.

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Article Synopsis
  • * Out of 586 ducks tested, 35 were found positive for the T. gondii B1 gene, and one heart sample was identified as Type I (ToxoDB#10) for the first time in ducks in China.
  • * The research adds important information about the genetic diversity of T. gondii in free-range ducks, highlighting its relevance to the "One Health" concept connecting human, animal, and environmental health.
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Toxoplasma gondii is an important protozoan pathogen, which can cause severe diseases in the newborns and immunocompromised individuals. Developing an effective vaccine against Toxoplasma infection is a critically important global health priority. Immunofluorescence staining analysis revealed that TgSAG2 and TgSRS2 are membrane associated and displayed on the surface of the parasite.

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Functional electrical stimulation (FES) has been demonstrated as a viable method for addressing motor dysfunction in individuals affected by stroke, spinal cord injury, and other etiologies. By eliciting muscle contractions to facilitate joint movements, FES plays a crucial role in fostering the restoration of motor function compromised nervous system. In response to the challenge of muscle fatigue associated with conventional FES protocols, a novel biofeedback electrical stimulator incorporating multi-motor tasks and predictive control algorithms has been developed to enable adaptive modulation of stimulation parameters.

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To break the resolution limitation of traditional resists, more work is needed on non-chemically amplified resists (non-CARs). Non-CARs based on iodonium salt modified polystyrene (PS-I) were prepared with controllable molecular weight and structure. The properties of the resist can be adjusted by the uploading of iodonium salts on the polymer chain, the materials with a higher proportion of iodonium salts show better lithography performance.

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Article Synopsis
  • Capsule endoscopy (CE) is a non-invasive method for examining the gastrointestinal tract but poses challenges in image review, leading to potential missed diagnoses.
  • Current research has primarily focused on narrow classifiers for fewer abnormality types, making it hard to create a unified detection system for various gastrointestinal diseases.
  • The proposed Cascade-EC model enhances image classification and localization of lesions (like angiectasis, bleeding, erosion, and polyps) using a two-layer approach that combines EfficientNet for classification and CA_stm_Retinanet for detecting lesions, achieving impressive accuracy rates.
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Motivation: PE/PPE proteins, highly abundant in the genome, play a vital role in virulence and immune modulation. Understanding their functions is key to comprehending the internal mechanisms of . However, a lack of dedicated resources has limited research into PE/PPE proteins.

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Phospholipase Ds (PLDs) are important phospholipid hydrolases in plants that play crucial roles in the regulation of plant growth, development, and stress tolerance. In this study, 14 PLD genes were identified in the tomato genome and were localized on eight chromosomes, and one tandem-duplicated gene pair was identified. According to a phylogenetic analysis, the genes were categorized into four subtypes: SlPLDα, β, and δ belonged to the C2-PLD subfamily, while SlPLDζ belonged to the PXPH-PLD subfamily.

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Teratoma are germ cell tumors, most frequently arising in and retroperitoneal teratomas are rare, especially adrenal teratomas. Only a few case reports have been documented in the literature so far. We report the case of a 52-year-old asymptomatic male patient who had an incidental finding of a left adrenal teratoma during an abdominal computed tomography scan; due to the large size of the tumor, he underwent laparoscopic left adrenalectomy, and histopathological examination revealed a mature teratoma of the left adrenal gland, Patient recovering well after surgery and had no recurrence after 6 months of postoperative follow-up.

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The scientific diagnosis and treatment of patients with diabetes require frequent blood glucose testing and insulin delivery to normoglycemia. Therefore, an artificial pancreas with a continuous blood glucose (BG) monitoring function is an urgent research target in the medical industry. The problem of closed-loop algorithmic control of the BG with a time delay is a key and difficult issue that needs to be overcome in the development of an artificial pancreas.

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