Publications by authors named "Jiang Xuan"

We conducted metagenomic sequencing on a stool sample collected from urban-dwelling and obtained a metagenome-assembled genome of . Phylogenetic analysis revealed that this strain is closely related to the one isolated from dogs, forming a distinct clade separate from the reference genome.

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Background: Tetramethylpyrazine (TMP), a key bioactive constituent derived from Ligusticum wallichii Franchat, has demonstrated efficacy in mitigating multidrug resistance (MDR) in human breast cancer (BC) cells. However, the precise mechanisms underlying its action remain poorly understood.

Purpose: Cancer stem cells (CSCs) are widely recognized as the primary contributors to MDR.

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Ferroptosis is a novel form of cell death characterized by unlimited accumulation of iron-dependent lipid peroxides. It is often accompanied by disease, and the relationship between ferroptosis of immune cells and immune regulation has been attracting increasing attention. Initially, it was found in cancer research that the inhibition of regulatory T cell (Treg) ferroptosis and the promotion of CD8+ T cell ferroptosis jointly promoted the formation of an immune-tolerant environment in tumors.

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Polynuclear Au(I) cluster photocatalysts, known for their high activity and stability, hold substantial potential in organic synthetic chemistry. This study synthesized two Au(I) supramolecular cluster catalysts with different nuclearities: a tetranuclear cluster, C1 ([(dppmAu2)2L1]•PF6-), and a hexadecanuclear cluster, C2 [(dppmAu2)6(Au4)(L1)4]•4PF6-, through a multicomponent stepwise self-assembly approach. Both cluster structures feature aurophilicity interaction motifs that endow them with exceptional photocatalytic performance, exhibiting optical band gaps of 2.

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Ischemic diseases are major contributors to global morbidity and mortality, posing a substantial threat to human health. Extracellular vesicles (EVs) play an essential role in enhancing neovascularization in ischemic tissues, thereby facilitating tissue repair and regeneration. However, the utilization of EVs is hindered by their rapid uptake and clearance by the mononuclear phagocyte system (MPS), which markedly impedes their therapeutic efficacy and organ-specific accumulation.

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Background: The co-occurrence of PD-L1 positivity and EGFR mutations in advanced NSCLC often limits EGFR-TKIs effectiveness, with unclear mechanisms.

Methods: We analyzed 103 treatment-naive EGFR-mutant LUAD patients from three centers, assessing PD-L1 expression and performing NGS analysis.

Results: SMO mutations and MET amplification were significantly higher in the PD-L1 ≥ 1% group versus PD-L1 < 1% group (SMO: 8% vs.

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Background: With poor treatment outcomes and prognosis, bladder cancer remains a focus for clinical research in the precision oncology era. However, the potential of disulfidptosis, a novel cell death mechanism, and its related long non-coding RNAs to support selective cancer cell killing in this disease is still unclear.

Methods: We identified key disulfidptosis-related lncRNAs in bladder cancer, constructed a prognostic risk model with potential therapeutic targets, and confirmed the findings through quantitative PCR analysis.

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Pneumonia is a key criterion for the severity of COVID-19. Whether COVID-19 symptoms are indicators of pneumonia in patients infected with SARS-CoV-2 Omicron variants is unclear. 6200 non-hospitalized patients with COVID-19 from three sites in three hospitals were divided into three cohorts: Cohort 1 (n = 1971, Outpatient Department), Cohort 2 (n = 1073, Emergency Department), and Cohort 3 (n = 3156, Fever Clinic).

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This study investigates the impact of hemoglobin A1c on platelet reactivity and cardiovascular outcomes in patients undergoing drug-eluting stent implantation. HbA1c levels were categorized into 3 groups: < 6.5%, 6.

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Autophagy is a highly conserved cellular self-digestive process that underlies the maintenance of cellular homeostasis. Autophagy is classified into three types: macrophage, chaperone-mediated autophagy (CMA) and microphagy, which maintain cellular homeostasis through different mechanisms. Altered autophagy regulation affects the progression of various skin diseases, including psoriasis (PA), systemic lupus erythematosus (SLE), vitiligo, atopic dermatitis (AD), alopecia areata (AA) and systemic sclerosis (SSc).

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Background: The role of vitamin C in osteoarthritis (OA) is still a subject of debate. Our aim was to combine the National Health and Nutrition Examination Survey (NHANES) and MR studies to explore the relationship between vitamin C intake and OA.

Methods: Clinical information on participants during NHANES 2003-2018 was collected and the relationship between vitamin C intake and OA risk was assessed using logistic regression modelling.

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Article Synopsis
  • Epigenome-wide association studies (EWAS) can be affected by confounding factors like population structure and genetic relatedness, making kinship estimation difficult without genotyping data.
  • The authors introduced a new method called MethylGenotyper, which accurately determines genotypes at thousands of SNPs using DNA methylation microarray data.
  • In tests with data from Chinese and Australian samples, MethylGenotyper achieved high accuracy and allowed for the identification of genetic relationships, and is available as an R package for broader use in future studies.
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Chronic-healing skin wounds are a common complication in diabetic individuals. To alleviate patient suffering, there is a pressing demand for more effective strategies to expedite the repair of diabetic wounds. Fibroblast growth factor 21(FGF21) has been proven to accelerate wound healing, but its stability and ability to assist in the healing of diabetic ulcers have not met expectations.

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Genetically engineered mouse models (GEMMs) are vital for elucidating gene function and disease mechanisms. An overwhelming number of GEMM lines have been generated, but endeavors to collect and organize the information of these GEMMs are seriously lagging behind. Only a few databases are developed for the information of current GEMMs, and these databases lack biological descriptions of allele compositions, which poses a challenge for nonexperts in mouse genetics to interpret the genetic information of these mice.

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Recent studies have shown that stress can substantially facilitate breast cancer metastasis, which can be reduced by nonselective β1/β2-adrenergic receptor (β1/β2-AR) blocker. However, several side effects were identified. Thus, it is extremely warranted to explore more effective and better-tolerated β2-AR blocker.

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Interleukin-6 (IL-6) detection and monitoring are of great significance for evaluating the progression of many diseases and their therapeutic efficacy. Lateral flow immunoassay (LFIA) is one of the most promising point-of-care testing (POCT) methods, yet suffers from low sensitivity and poor quantitative ability, which greatly limits its application in IL-6 detection. Hence, in this work, we integrated Au nanoparticles (NPs) as new LFIA reporters and achieved the colorimetric and photothermal dual-mode detection of IL-6.

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Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease with no cure except transplantation. Abnormal alveolar epithelial regeneration is a key driver of IPF development. The function of Yes1 Associated Transcriptional Regulator (YAP) in alveolar regeneration and IPF pathogenesis remains elusive.

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Article Synopsis
  • Natural products have complex structures and therapeutic significance, making them essential for drug discovery; identifying target proteins of these compounds is necessary for developing new drugs.
  • Current methods to identify these targets fall into two categories: labeling methods that modify natural compounds and label-free methods that don't require modifications, each with their pros and cons.
  • The review analyzes recent advancements in both approaches and discusses a new method that leverages the natural functions of compounds for quicker target identification, highlighting the need for accurate and reliable identification techniques.
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Article Synopsis
  • The study examines the long-term effects of COVID-19 on the mental health of college students over a year after restrictions were lifted, noting significant trends in anxiety, depression, and PTSD.
  • From December 2022 to November 2023, surveys showed a decrease in COVID-19 panic and moderate anxiety but an increase in PTSD and suicidal thoughts among students.
  • The findings suggest that the overall mental health of students remains concerning, indicating a need for improved mental health support and healthy behavior programs in colleges.
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Aim: To describe the characteristics of peripapillary hyperreflective ovoid mass-like structure (PHOMS) in myopic children and to investigate factors associated with PHOMS.

Methods: This retrospective observational study included 101 eyes of 101 children (age ≤17y) with myopia. All included patients underwent comprehensive clinical examination.

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Neurotrophic receptor tyrosine kinases (NTRKs) belong to the receptor tyrosine kinase (RTK) family. NTRKs are responsible for the activation of multiple downstream signaling pathways that regulate cell growth, proliferation, differentiation, and apoptosis. NTRK-associated mutations often result in oncogenesis and lead to aberrant activation of downstream signaling pathways including MAPK, JAK/STAT, and PLCγ1.

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Background And Aim: Lumen-apposing metal stents (LAMS) are preferred to initial drainage in pancreatic fluid collections (PFCs) patients with disconnected pancreatic duct syndrome (DPDS) in recent years. However, unlike plastic stents, the long-term placement of LAMS is not recommended due to a high risk of local complications. This meta-analysis attempted to evaluate the effect of using plastic stents for prolonged drainage after LAMS removal on recurrence of PFCs in DPDS.

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The gut microbiota undergoes substantial changes in COVID-19 patients; yet, the utility of these alterations as prognostic biomarkers at the time of hospital admission, and its correlation with immunological and hematological parameters, remains unclear. The objective of this study is to investigate the gut microbiota's dynamic change in critically ill patients with COVID-19 and evaluate its predictive capability for clinical outcomes alongside immunological and hematological parameters. In this study, anal swabs were consecutively collected from 192 COVID-19 patients (583 samples) upon hospital admission for metagenome sequencing.

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Endoplasmic reticulum (ER) stress, a common cellular stress response induced by various factors that interfere with cellular homeostasis, may trigger cell apoptosis. Autophagy is an important and conserved mechanism for eliminating aggregated proteins and maintaining protein stability of cells, which is closely associated with ER stress and ER stress-induced apoptosis. In this paper, we report for the first time that Hhatl, an ER-resident protein, is downregulated in response to ER stress.

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