Publications by authors named "Xuyang Guo"

To curb the intensification of desertification, China has implemented a series of measures to control rocky desertification. However, the interaction between vegetation restoration and the frequent occurrence of extreme weather events has complicated the drought situation in Southwest China. Therefore, in this study, the vegetation health index (VHI) was used to analyze the spatiotemporal variations in drought.

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Bovine viral diarrhea virus (BVDV) causes one of the significant devastating diseases for the cattle industry worldwide. The virus can cross the placenta and result in the persistent infection of the fetus, which has hampered the efficacy and the development of vaccines. Hence, efficient antiviral strategies are urgently needed.

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Article Synopsis
  • Porcine reproductive and respiratory syndrome (PRRS) is a major viral disease affecting pigs worldwide, with vaccination being crucial for its control.
  • In China, the NADC30-like PRRSV strain has become the dominant strain, and existing vaccines mainly protect against the older HP-PRRSV strain but are ineffective against NADC30-like.
  • This study developed a chimeric PRRSV vaccine strain (rGD-SX-5U2) that combines genes from both HP-PRRSV and NADC30-like PRRSV, showing promising results in protecting against both strains and improving swine health outcomes.
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Metabolism in host cells can be modulated after viral infection, favoring viral survival or clearance. Here, we report that lipid droplet (LD) synthesis in host cells can be modulated by yin yang 1 (YY1) after porcine reproductive and respiratory syndrome virus (PRRSV) infection, resulting in active antiviral activity. As a ubiquitously distributed transcription factor, there was increased expression of YY1 upon PRRSV infection both and .

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  • Multiple myeloma (MM) is a disease where plasma cells in the body grow out of control, and these cells can survive in the gut.
  • The study looked at poop samples from MM patients in cold, high-altitude areas of China to see how the bacteria in their intestines were different from healthy people.
  • They found 15 types of bacteria that were different in MM patients and created a model to help diagnose the disease, suggesting that changing gut bacteria might help in treating or preventing MM.
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The present meta-analysis investigated the clinical value of serum matrix metalloproteinase (MMP)-9 levels in Coronavirus Disease 2019 (COVID-19) patients. Studies assessing the outcomes of patients with COVID-19 in correlation with the MMP-9 levels were retrieved from PubMed, Web of Science, EMBASE, Cochrane, WANFANG, and CNKI. A meta-analysis was performed to compare the serum MMP-9 levels between different patient groups: Severe vs.

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Porcine epidemic diarrhea virus (PEDV) leads to enormous economic losses for the pork industry. However, the commercial vaccines failed to fully protect against the epidemic strains. Previously, the rCH/SX/2016-S strain with the entire E protein and the rCH/SX/2015 strain with the deletion of 7-amino-acid (7-aa) at positions 23-29 in E protein were constructed and rescued.

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Article Synopsis
  • PRRS (Porcine reproductive and respiratory syndrome) is a major global issue for the pig industry, primarily due to the high mutation rate of PRRSV, which complicates vaccine effectiveness.
  • A study discovered a new wild-type strain, SX-YL1806, that showed immunity issues with commercial modified live virus (MLV) vaccines, which worked well against another strain but not this one.
  • Genomic analysis revealed low similarity between the MLV vaccine and the new strain, and tests indicated that the vaccine-induced antibodies might be enhancing the replication of the new strain, hinting at a phenomenon called antibody-dependent enhancement (ADE) that could reduce vaccine protection.
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Chemokine production by epithelial cells is crucial for neutrophil recruitment to sites of inflammation during viral infection. However, the effect of chemokine on epithelia and how chemokine is involved in coronavirus infection remains to be fully understood. Here, we identified an inducible chemokine interleukin-8 (CXCL8/IL-8), which could promote coronavirus porcine epidemic diarrhea virus (PEDV) infection in African green monkey kidney epithelial cells (Vero) and Lilly Laboratories cell-porcine kidney 1 epithelial cells (LLC-PK1).

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Background: CD276 (also known as B7-H3) is one of the most important immune checkpoints of the CD28 and B7 superfamily, and its abnormal expression is closely associated with various types of cancer. It has been shown that CD276 is able to inhibit the function of T cells, and that this gene may potentially be a promising immunotherapy target for different types of cancer.

Methods: Since few systematic studies have been published on the role of CD276 in cancer to date, the present study has employed single-cell sequencing and bioinformatics methods to analyze the expression patterns, clinical significance, prognostic value, epigenetic alterations, DNA methylation level, tumor immune cell infiltration and immune functions of CD276 in different types of cancer.

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Metabolic reprogramming is a hallmark of glioma, and is an essential target for metabolic therapy. However, the prognostic value of and its association with immune infiltration has not been fully elucidated. Using RNA-seq and clinical data of glioma patients from The Cancer Genome Atlas (TCGA), was found to be correlated with poor prognosis in glioma and the advanced malignancy of clinicopathological characteristics.

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The suppressor of cytokine signaling () family contains eight members, including and , and has been shown to inhibit cytokine signal transduction in various signaling pathways. Although several studies have currently shown the correlations between and several types of cancer, no pan-cancer analysis is available to date. We used various computational tools to explore the expression and pathogenic roles of in several types of cancer, assessing its potential role in the pathogenesis of cancer, in tumor immune infiltration, tumor progression, immune evasion, therapeutic response, and prognostic.

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Glioblastoma (GBM) is the most lethal malignant tumor in the central nervous system, with a median survival of only 14 months. Cholesterol, which is the main component of cell membrane and the precursor of many hormones, is one of the most important lipid components in human body. Since reprogramming of the cholesterol metabolic profile has been discovered in many cancers including GBM, cholesterol metabolism becomes a promising potential target for therapy.

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Type I interferons (IFN-Is) play a key role in host defense against virus infection, but porcine reproductive and respiratory syndrome virus (PRRSV) infection does not effectively activate IFN-I response, and the underlying molecular mechanisms are poorly characterized. In this study, a novel transcription factor of the heme oxygenase-1 (HO-1) gene, homeobox A3 (HOXA3), was screened and identified. Here, we found that HOXA3 was significantly increased during PRRSV infection.

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Background: Ischemic cerebral edema (CE) is a major leading cause of death in patients with ischemic stroke. The CE progression is closely related to the local cerebral blood perfusion (LCBP) level surrounding the edema area. Quantitative studying the interaction between the CE and peripheral LCBP may provide new inspiration for control and even treatment of CE.

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Background: Porcine epidemic diarrhea virus (PEDV), which is characterized by severe watery diarrhea, vomiting, dehydration and a high mortality rate in piglets, leads to enormous economic losses to the pork industry and remains a large challenge worldwide. Thus, a rapid and reliable method is required for epidemiological investigations and to evaluate the effect of immunization. However, the current diagnostic methods for PEDV are time-consuming and very expensive and rarely meet the requirements for clinical application.

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With the prosperity of machine learning and cloud computing, meaningful information can be mined from mass electronic medical data which help physicians make proper disease diagnosis for patients. However, using medical data and disease information of patients frequently raise privacy concerns. In this paper, based on single-layer perceptron, we propose a scheme of privacy-preserving clinical decision with cloud support (PPCD), which securely conducts disease model training and prediction for the patient.

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The utilization of geothermal energy is clean and has great potential worldwide, and it is important to utilize geothermal energy in a sustainable manner. Mathematical modeling studies of geothermal reservoirs are important as they evaluate and quantify the complex multi-physical effects in geothermal reservoirs. However, previous modeling efforts lack the study focusing on the emission reduction efficiency and the deformation at geothermal wellbores caused by geothermal water extraction/circulation.

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