Publications by authors named "Yujia Guo"

Laryngeal squamous cell carcinoma (LSCC) exhibits aggressive growth, frequent recurrence, and a notable resistance to existing treatments. Building upon prior discoveries that identified junctional adhesion molecule 3 (JAM3) as a critical tumor suppressor in LSCC, this study delves into the transcriptional regulation by upstream stimulatory factor 1 (USF1) and its implications for LSCC pathogenesis. Employing dual-luciferase assays and chromatin immunoprecipitation-quantitative polymerase chain reaction (ChIP-qPCR), we confirmed USF1's direct binding to the E-box within the JAM3 promoter, thereby enhancing JAM3 expression in AMC-HN-8 and FD-LSC-1 cells.

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Introduction: Social and behavioral determinants of health (SBDH) are increasingly recognized as essential for prognostication and informing targeted interventions. While medical notes contain rich SBDH details, these are unstructured and conventional extraction methods tend to be labor intensive, inaccurate, and/or unscalable. The emergence of large language models (LLMs) presents an opportunity to develop more effective approaches for extracting SBDH data.

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Gout mainly caused by the increase of uric acid level in serum poses a threat to human health. Inhibition on the activity of xanthine oxidase (XOD) usually an effective method for treating gout, so finding XOD inhibitors without side effects is crucial. In this study, two heteropolysaccharides were extracted from blackcurrant by microwave-assisted aqueous two-phase technology, and the top phase (PRNP-1) and bottom phase (PRNP-2) polysaccharides at high purity (>86%) were obtained after column chromatography separation.

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Subarachnoid hemorrhage (SAH) is a type of hemorrhagic stroke with high morbidity, mortality and disability, and early brain injury (EBI) after SAH is crucial for prognosis. Recently, stem cell therapy has garnered significant attention in the treatment of neurological diseases. Compared to other stem cells, dental pulp stem cells (DPSCs) possess several advantages, including abundant sources, absence of ethical concerns, non-invasive procurement, non-tumorigenic history and neuroprotective potential.

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Background: Head and neck squamous cell carcinoma (HNSCC), a highly invasive malignancy with a poor prognosis, is one of the most common cancers globally. Circular RNAs (circRNAs) have become key regulators of human malignancies, but further studies are necessary to fully understand their functions and possible causes in HNSCC.

Methods: CircCCT2 expression levels in HNSCC tissues and cells were measured via qPCR.

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Chronic oxidative stress (COS) is related to the pathophysiology of the trabecular meshwork (TM) in glaucoma. MicroRNAs (miRNAs) have a key role in the oxidative stress-mediated glaucoma. This work investigated the function of miR-126-5p in human trabecular meshwork cells (TMCs) under chronic oxidative stress (COS).

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Article Synopsis
  • Responsive hydrogels have great potential for detection applications due to their unique polymeric structures and optical properties, but traditional hydrogels often respond slowly to targets, limiting their use.
  • A new cryogel with a hierarchical structure was developed by modifying hydrogel formation through freezing, which enhances responsiveness for rapid analysis of 17β-estradiol (E2).
  • This cryogel, combined with a smartphone system, allows for sensitive E2 detection (with a low limit of 0.5 nM), paving the way for innovative hydrogel-based biosensors for quick and portable target analysis.*
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  • The study explores a DNA-based growth strategy for bimetallic nanozymes to enhance their peroxidase activity by modifying their shape and structure.
  • Researchers used four types of DNA oligonucleotides to control the synthesis of Pt nanoparticles on DNA-coated Au nanorods and found that the aggregation behavior of these nanorods depended on the DNA's length and type.
  • A new colorimetric sensor was developed using the DNA-modified nanozymes to effectively detect different biological thiols and distinguish between normal and tumor cells, advancing the understanding of DNA-guided nanozyme behavior and their biosensing capabilities.
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  • Subarachnoid hemorrhage (SAH) is a serious condition that can lead to early brain injury and is linked to high mortality rates, with neuronal ferroptosis playing a critical role in these outcomes.
  • Researchers created nanoparticles coated with hyaluronic acid to deliver ursolic acid specifically to the affected brain areas in a mouse model of SAH, analyzing how effective this treatment is at improving neurological function.
  • The study found that these nanoparticles not only targeted the injury site effectively but also helped reduce ferroptosis in neurons, potentially enhancing recovery through the activation of specific cellular signaling pathways.
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PRF1 (perforin 1) is a key cytotoxic molecule that plays a crucial role in the killing function of natural killer (NK) cells and cytotoxic T lymphocytes (CTLs). Recent studies have focused on PRF1's role in cancer development, progression, and prognosis. Studies have shown that aberrant PRF1 expression has a significant role to play in cancer development and progression.

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Background: Chemokine ligands and their corresponding receptors are essential for regulating inflammatory responses. Chemokine receptors can stimulate immune activation or inhibit/promote signaling pathways by binding to specific chemokine ligands. Among these receptors, CC chemokine receptor 1 (CCR1) is extensively studied as a G protein-linked receptor target, predominantly expressed in various leukocytes, and is considered a promising target for anti-inflammatory therapy.

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Objectives: This study aimed to assess the impacts of China's health insurance integration reform on frailty among rural older adults.

Methods: Nationally representative longitudinal data with 2,751 adults aged ≥60 years were analyzed from the China Health and Retirement Longitudinal Study 2011-2015. The integration of the rural New Cooperative Medical Scheme and urban Resident Basic Medical Insurance into the unified Urban and Rural Resident Basic Medical Insurance (URRBMI).

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As a traditional Chinese medicinal herb with a long history, Codonopsis pilosula (CP) has attracted much attention from the medical community in recent years. This review summarizes the research progress of CP in the medical field in the past 5 years. By searching and analyzing the literature, and combining with Cytoscape software, we comprehensively examined the role and mechanism of action of CP in individual application, combination drug application, and the role and mechanism of action of codonopsis pilosula's active ingredients in a variety of diseases.

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Chemokines, cytokines, and inflammatory cells mediate the onset and progression of many diseases through the induction of an inflammatory response. LncRNAs have emerged as important regulators of gene expression and signaling pathways. Increasing evidence suggests that lncRNAs are key players in the inflammatory response, making it a potential therapeutic target for various diseases.

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Existing natural language processing (NLP) methods to convert free-text clinical notes into structured data often require problem-specific annotations and model training. This study aims to evaluate ChatGPT's capacity to extract information from free-text medical notes efficiently and comprehensively. We developed a large language model (LLM)-based workflow, utilizing systems engineering methodology and spiral "prompt engineering" process, leveraging OpenAI's API for batch querying ChatGPT.

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Background: Prior research has identified one's own education level as a risk factor for frailty. However, the association between spousal education and frailty in later life is uncertain. We aim to examine the longitudinal association between spousal education and frailty levels among Chinese older populations.

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Subarachnoid hemorrhage (SAH) is a stroke subtype with high mortality, and its severity is closely related to the short-term prognosis of SAH patients. S100 calcium-binding protein A9 (S100A9) has been shown to be associated with some neurological diseases. In this study, the concentration of S100A9 in clinical cerebrospinal fluid samples was detected by enzyme-linked immunosorbent assay (ELISA), and the relationship between S100A9 and the prognosis of patients was explored.

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Background And Objectives: Evidence remains unclear on the impact of life-course socioeconomic position (SEP) mobility on frailty trajectories in later life. We aim to examine the longitudinal effects of social mobility on frailty trajectories among Chinese middle-aged and older populations.

Research Design And Methods: A total of 13 239 participants aged 45 and older from the 2011-2018 China Health and Retirement Longitudinal Study were analyzed.

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Background: Air pollution is a frailty risk factor, yet the frailty-related health benefits of China's air pollution control policy, the Clean Air Action (CCAA), are unclear. Frailty progression and transitions differ among robust, prefrail, and frail adults. This study aimed to evaluate the CCAA's effect on frailty levels among robust, prefrail, and frail Chinese adults.

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Emodin was extracted from Rheum officinale Baill by ultrasound-assisted extraction (UAE), and ethanol was chosen as the suitable solvent through SEM and molecular dynamic simulation. Under the optimum conditions (power 541 W, time 23 min, liquid to material ratio 13:1 mL/g, ethanol concentration 83 %) predicted by RSM, the yield of emodin was 2.18 ± 0.

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Background: The occurrence rate of distal anterior cerebral artery (DACA) aneurysms is relatively low, primarily due to their deep-seated location, which makes surgical clamping challenging. The objective of this study was to investigate the efficacy and safety of computed tomography (CT) navigation-assisted clipping of DACA aneurysms compared to traditional clipping without navigation.

Methods: A retrospective cohort study involving retrospective data collection was performed.

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Laryngeal squamous cell carcinoma (LSCC) is one of the common malignant tumors in the head and neck region, and its high migration and invasion seriously threaten the survival and health of patients. In cancer development, m6A RNA modification plays a crucial role in regulating gene expression and signaling. This study delved into the function and mechanism of the m6A reading protein YTHDF1 in LSCC.

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Article Synopsis
  • * Ibrutinib, a BTK inhibitor, shows promise in reducing neurological impairment and neuroinflammation post-SAH by improving blood-brain barrier integrity and decreasing neuronal death.
  • * CXCR4 levels in cerebrospinal fluid (CSF) from SAH patients correlate with inflammatory markers and may have diagnostic potential for patient outcomes, emphasizing the importance of targeting the CXCR4-BTK pathway to mitigate EBI effects.
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Background And Purpose: Neurogenic pulmonary edema (NPE) frequently arises as a complication subsequent to subarachnoid hemorrhage (SAH). Heterodimers of S100A8 and S100A9 are commonly formed, thereby initiating an inflammatory reaction through receptor binding on the cell surface. Paquinimod serves as a specific inhibitor of S100A9.

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Background And Purpose: Neuroinflammation is an important mechanism underlying brain injury caused by subarachnoid hemorrhage (SAH). C-C chemokine receptor type 1 (CCR1)-mediated inflammation is involved in the pathology of many central nervous system diseases. Herein, we investigated whether inhibition of CCR1 alleviated neuroinflammation after experimental SAH and aimed to elucidate the mechanisms of its potential protective effects.

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