Publications by authors named "KeXin Tan"

Background: Optic nerve imaging is crucial for diagnosing and understanding optic neuropathies because it provides detailed visualization of the nerve's structure and pathologies through advanced modalities. This study conducted a bibliometric analysis within the field of optic nerve imaging, aiming to pinpoint the latest research trends and focal points in optic nerve imaging.

Methods: The core literature on optic nerve imaging published between January 1991 and August 2023 was retrieved from the Web of Science Core Collection.

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Two novel rare earth-substituted tungstoantimonates [HN(CH)]Na[Dy(HO)(tar)(SbWO)]·40HO (DySbW) and [HN(CH)]Na[Ho(HO)(tar)(SbWO)]·25HO (HoSbW) (Htar = tartaric acid) were synthesized. The -polyanions are alternately linked by {Na(HO)} clusters and DL-tar ligands to form 1D chains. Notably, HoSbW exhibits excellent catalytic activity and high stability for the synthesis of isoindolinones using EtOH as a green solvent.

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  • Thyroid eye disease (TED) is a common condition affecting eye movement, and this study aimed to create an AI model to evaluate ocular motility using CT images.
  • The research analyzed 410 sets of CT images and clinical data, employing deep learning models, with the ResNet-34 network achieving the highest accuracy (90.7%) in predicting ocular motility scores compared to other models.
  • The AI model showed effective automated scoring for ocular motility in TED patients, with greater accuracy in females, potentially improving the efficiency and precision of clinical evaluations.
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Objective: This meta-analysis aims to evaluate the safety and efficacy of restarting immune checkpoint inhibitors (ICIs) in patients with non-small cell lung cancer (NSCLC) after experiencing immune-related adverse events (irAEs).

Methods: A comprehensive search of PubMed, Web of Science, Embase, and the Cochrane Library was conducted to identify studies investigating the safety and efficacy of restarting ICIs in NSCLC patients after irAEs. Outcome measures, including objective response rate (ORR), progression-free survival (PFS), and overall survival (OS) after ICI restarting, were extracted.

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  • Two different forms of Mn(II)-bridged Silverton-type polyoxomolybdates were synthesized using hydrothermal methods.
  • The resulting compounds, Na(HO)[Mn(UMoO)] and (NH)[KNa(μ-O)(HO)Mn(UMoO)]·4.6HO, displayed unique three-dimensional structures.
  • One of the compounds showed high efficiency as a heterogeneous catalyst, achieving up to 99% yield in the condensation cyclization reaction producing various valuable pyrazoles.
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  • Ultrasmall Au(MPA) clusters have promising applications in biocatalysis and bioimaging due to their tunable structures and properties.* -
  • A study investigated the effects of high doses (300 and 500 mg/kg) of Au nanoclusters (Au NCs) on hematological, tissue, and neurological parameters, finding no significant toxic effects even at these ultrahigh levels.* -
  • The findings suggest good biosafety for Au NCs, with important implications for their clinical use in biomedicine, as they show no major organ damage and are mostly metabolized through the kidneys.*
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Gold nanoclusters (Au NCs) exhibit broad fluorescent spectra from visible to near-infrared regions and good enzyme-mimicking catalytic activities. Combined with excellent stability and exceptional biocompatibility, the Au NCs have been widely exploited in biomedicine such as biocatalysis and bioimaging. Especially, the long fluorescence lifetime and large Stokes shift attribute Au NCs to good probes for fluorescence sensing and biological detection.

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Ammonia electrolysis is a promising technology to obtain green hydrogen with zero-carbon emission, in which ammonia oxidation reaction (AOR) and hydrogen evolution reaction (HER) occur at the anode and cathode, respectively. However, the lack of efficient catalysts hinders its practical application. Herein, PtZn alloy is combined with NbO to construct a bifunctional heterostructure catalyst (PtZn-NbO/C).

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High temperatures negatively impact the yield and quality of fruit crops. Exogenous melatonin (MT) application has been shown to enhance heat tolerance, but the response of endogenous MT to heat stress, particularly in perennial fruit trees, remains unclear. The present study investigated the effects of high temperatures on transgenic apple plants overexpressing the MT biosynthesis gene N-acetylserotonin methyltransferase 9 (MdASMT9).

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Background: Immune checkpoint inhibitors (ICIs) have changed the therapeutic options for extensive-stage small-cell lung cancer (ES-SCLC). In this real-world study, we analyzed the treatment patterns in patients with ES-SCLC and evaluated the efficacy of chemotherapy combined with immunotherapy as first-line therapy.

Methods: A retrospective analysis was performed on patients with ES-SCLC who received treatment at China-Japan Friendship Hospital (Beijing, China) between August 1, 2020, and April 30, 2023.

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Nitrogen (N) is an essential nutrient for crop growth and development, significantly influencing both yield and quality. Melatonin (MT), a known enhancer of abiotic stress tolerance, has been extensively studied. However, its relationship with nutrient stress, particularly N deficiency, and the underlying regulatory mechanisms of MT on N absorption remain unclear.

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  • - A novel Ni(II)-based metal-organic framework was synthesized using specific chemical components, creating a unique 3D structure that is interpenetrating and connected in a certain way.
  • - This framework displays both stability and strong catalytic properties, making it effective for producing benzimidazoles and pyrazoles under mild conditions.
  • - The catalyst can be easily separated and reused, maintaining its high catalytic activity even after seven cycles of use.
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Strong fluorescence and high catalytic activities cannot be achieved simultaneously due to conflicts in free electron utilization, resulting in a lack of bioactivity of most near-infrared-II (NIR-II) fluorophores. To circumvent this challenge, we developed atomically precise Au clusters with strong NIR-II fluorescence ranging from 950 to 1300 nm exhibiting potent enzyme-mimetic activities through atomic engineering to create active Cu single-atom sites. The developed AuCu clusters show 18-fold higher antioxidant, 90-fold higher catalase-like, and 3-fold higher superoxide dismutase-like activities than Au clusters, with negligible fluorescence loss.

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Near-infrared-II (NIR-II) imaging has shown great potential for monitoring the pathological progression and deep tissue imaging but is limited to present unmet NIR-II agent. Present fluorophores show a promising prospect for NIR-II imaging, but brightness and photostability are still highly challenging during real-time monitoring. In this work, atom-engineered NIR-II Au Cd  clusters with ultrahigh brightness, stability, and photostability are developed via single atomic Cd doping.

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Lung squamous cell carcinoma (LUSC) shares less typical onco-drivers and target resistance, but a high overall mutation rate and marked genomic complexity. Mismatch repair (MMR) deficiency leads to microsatellite instability (MSI) and genomic instability. MSI is not an ideal option for prognosis of LUSC, whereas its function deserves exploration.

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Background: Immune checkpoint inhibitors (ICIs) have changed the situation of tumor therapy in recent years. However, for security reasons, those special populations are often excluded from clinical trials, such as infected hepatitis B or hepatitis C patients. ICIs are systematically reviewed and meta-analyzed for the first time in patients infected with hepatitis B or C in this paper.

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  • Extensive-stage small-cell lung cancer (ES-SCLC) is a highly aggressive form of cancer with limited treatment options and a poor prognosis, showing little improvement in survival rates over the past two decades.
  • A 57-year-old patient with ES-SCLC experienced significant disease progression after multiple treatments but found success after switching to various immunotherapies combined with chemotherapy, achieving remarkable progression-free survival (PFS).
  • Overall, the patient achieved 45 months of PFS and 50 months of overall survival, demonstrating the potential for long-term survival through innovative treatment approaches in advanced ES-SCLC.
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Background: Skin rash is the most common adverse effect associated with epidermal growth factor receptor inhibitors (EGFRIs). The study has observed the efficacy and safety of Zhiyang Pingfu Liquid in the treatment of EGFRIs-related moderate and severe rash.

Methods: Patients suffering from EGFRIs-related moderate to severe rash were enrolled and then randomly divided into the treatment group and the control group, receiving Zhiyang Pingfu Liquid and placebo liquid respectively combined with minocycline and methylprednisolone recommended by guideline for 14 days.

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Immune checkpoint inhibitors (ICIs) have changed the status of tumor immunotherapy. ICIs-related adverse events (irAEs) have the high incidence and are difficult to predict and prevent. Researches have suggested that changes of cytokines were associated with irAEs.

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Background: Postoperative radiation therapy (PORT) remains the critical therapy for stage III non-small cell lung cancer (NSCLC). Radiation induced lung injury (RILI) is common and affects the clinical outcome. Proton therapy (PT) is a new-style radiotherapy with accurate distribution of curative dose to tumor and increased organ-at-risk (OAR) sparing, which potentially decrease the incidence of RILI.

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Background: Immunotherapies represented by immune checkpoint inhibitors (ICIs) have revolutionized cancer treatment. A large part of the population has both cancer and psoriasis but is usually excluded from ICI clinical trials because of the dysregulated activation of the immune system. This is the first study to evaluate the safety and efficacy of ICI therapy in patients with cancer and preexisting psoriasis.

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Melatonin (-acetyl-5-methoxytryptamine) is an emerging biomolecule that influences horticultural crop growth, flowering, fruit ripening, postharvest preservation, and stress protection. It functions as a plant growth regulator, preservative and antimicrobial agent to promote seed germination, regulate root system architecture, influence flowering and pollen germination, promote fruit production, ensure postharvest preservation, and increase resistance to abiotic and biotic stresses. Here, we highlight the potential applications of melatonin in multiple aspects of horticulture, including molecular breeding, vegetative reproduction, production of virus-free plants, food safety, and horticultural crop processing.

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Background: Immune checkpoint inhibitors (ICIs) emerge as the first-line treatment of lung adenocarcinoma (LUAD); selection of subpopulations acquiring clinical benefit is required. Associations between epigenetic modulation of tumor microenvironment (TME) and clinical outcome are far from clear. We focused on immune-related genes closely regulated by DNA methylation to identify the potential clinical outcome indicators.

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The development of efficient and stable Pt-based catalysts is significant but challenging for fuel cells. Herein, Sn and Co elements are introduced into Pt to form PtCo-PtSn/C heterostructure for enhancing the oxygen reduction reaction (ORR). Electrochemical results indicate that it has remarkable ORR intrinsic activity with a high mass activity (1,158 mA mg Pt) at 0.

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Melatonin, a widely known indoleamine molecule that mediates various animal and plant physiological processes, is formed from N-acetyl serotonin via N-acetylserotonin methyltransferase (ASMT). ASMT is an enzyme that catalyzes melatonin synthesis in plants in the rate-determining step and is homologous to hydroxyindole-O-methyltransferase (HIOMT) melatonin synthase in animals. To date, little is known about the effect of on salinity in apple plants.

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