Publications by authors named "Lv Xuan"

Traditional assessments of grapevine susceptibility to grapevine downy mildew (GDM) caused by rely on the visual evaluation of leaf symptoms. In this study, we used a well-established quantitative real-time PCR TaqMan assay (real-time PCR) to quantify the number of infecting 12 grapevine cultivars under controlled conditions. The molecular disease index (MDI), derived from molecular detection methods, reflects the relative abundance of pathogens in plant tissues during the latent infection phase.

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Puccinia striiformis f. sp. tritici (Pst), the airborne fungal pathogen of wheat stripe rust, causes a decline in wheat quality and severe yield loss.

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Article Synopsis
  • Brucellosis is an infectious disease treated mainly with antibacterial drugs, but these drugs often struggle to enter and work effectively inside cells due to cell membrane barriers.
  • Researchers have created a nanogel that includes an antibacterial drug and is enhanced with folic acid for better targeting, which activates in response to reactive oxygen species (ROS) and utilizes heat to improve drug release.
  • The nanogel has been shown to significantly improve killing effects against Brucella bacteria compared to using the drug alone, achieving a 99.8% bacteriostatic rate while maintaining good biocompatibility.
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  • Bioflocculants are eco-friendly agents made by specific bacteria that help remove turbidity from drinking water, but face challenges like low efficiency and high costs.
  • Pseudomonas sp. ZC-41 was identified as an efficient strain producing a polysaccharide bioflocculant (MBF-ZC) with 94.12% efficiency under cost-effective conditions, improving flocculation performance.
  • The study analyzed the genetics of strain ZC-41, identifying key genes linked to flocculation, and optimized conditions for achieving 93.57% turbidity removal, providing solutions for treating high-turbidity drinking water.
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Article Synopsis
  • - A novel goose astrovirus (GAstV) has been causing significant harm to the poultry industry in China, primarily leading to death in goslings through a condition called visceral gout, but the exact mechanisms behind this have not been well understood.
  • - In this study, researchers isolated a virulent GAstV strain from affected goslings, sequenced its genome, and created experimental infection models to explore how the virus leads to acute kidney injury.
  • - The findings indicate that GAstV causes damage by promoting renal cell death, fibrosis, and an overwhelming inflammatory response in the kidneys, which aligns with clinical symptoms observed in infected cases.
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Background: Interleukin-1 receptor-associated kinase 3 (IRAK3) modulates neuroinflammation. This study aimed to determine the prognostic role of serum IRAK3 in acute intracerebral hemorrhage (ICH).

Methods: In this prospective observational cohort study, 152 patients with supratentorial ICH, along with 63 healthy controls, were recruited.

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Objective: Coagulopathy score has been applied as a new prognostic indicator for sepsis, heart failure and acute respiratory failure. However, its ability to forecast intensive care unit (ICU) mortality in patients with an acute cerebral hemorrhage (ICH) has not been assessed. The purpose of this study was to clarify the relationship between ICU mortality and early coagulation problem score.

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Objective: The aim of this study was to explore the mechanism of methyltransferase-like 14 (METTL14) on human endometriotic stromal cell (ESC; HEM15A) proliferation, migration, and invasion to provide novel therapy for endometriosis (EMs).

Design: Normal human endometrial stromal cells (HESCs) and HEM15A cells were selected. Corresponding controlled experiments were performed to analyze whether overexpression of METTL14, N6-methyladenosine (m6A) methylated ZEB1 mRNA, upregulation of ZEB1, and activating the mitogen-activated protein kinase kinase (MEK)/extracellular signal-regulated kinase (ERK) can affect the proliferation, migration, and invasion of HEM15A cells.

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The complex genomics, immunosuppressive tumor microenvironment (TME), and chemotherapeutic resistance of osteosarcoma (OS) have resulted in limited therapeutic effects in the clinic. Ferroptosis is involved in tumor progression and is regulated mainly by glutathione peroxidase 4 (GPX4). Small interfering RNA (siRNA)-based RNA interference (RNAi) can precisely target any gene.

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Background: Nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing 1 (NLRP1) participates in neuroinflammation. This study aimed to identify serum NLRP as a potential prognostic biomarker of acute intracerebral hemorrhage (ICH).

Methods: This prospective cohort study enrolled 145 patients with supratentorial ICH and 51 healthy controls.

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Objective: The triglyceride glucose (TyG) index is regarded as a reliable alternative indicator for measuring insulin resistance. We investigated the association between the prognosis of patients with subarachnoid hemorrhage (SAH)and the TyG index, explored the potential of the TyG index as a new biomarker for forecasting the outcomes of SAH patients, and explored independent risk factors for predicting the condition of SAH patients.

Methods: A retrospective analysis was performed of patients who were admitted to a single center due to SAH.

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Supramolecular peptide nanofiber hydrogels are emerging biomaterials for tissue engineering, but it is difficult to fabricate multi-functional systems by simply mixing several short-motif-modified supramolecular peptides because relatively abundant motifs generally hinder nanofiber cross-linking or the formation of long nanofiber. Coupling bioactive factors to the assembling backbone is an ideal strategy to design multi-functional supramolecular peptides in spite of challenging synthesis and purification. Herein, a multi-functional supramolecular peptide, P1R16, is developed by coupling a bioactive factor, parathyroid hormone related peptide 1 (PTHrP-1), to the basic supramolecular peptide RADA16-Ⅰ via solid-phase synthesis.

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Introduction: Functions of existing automatic module systems for synthesis of radiopharmaceuticals mainly focus on the radiolabeling of small molecules. There are few modules which have achieved full-automatic radiolabeling of non-metallic and metallic nuclides on small molecules, peptides, and antibody drugs. This study aimed to develop and test a full-automatic multifunctional module system for the safe, stable, and efficient production of radiopharmaceuticals.

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Objective: Resolvin D1 (RvD1) has anti-inflammatory properties and may be neuroprotective. This study was designed to assess usability of serum RvD1 as a prognostic biomarker after intracerebral hemorrhage (ICH).

Methods: In this prospective, observational study of 135 patients and 135 controls, serum RvD1 levels were measured.

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Objective: Caspase activation and recruitment domain-containing protein 4 (NLRC4) is implicated in neuroinflammation. The aim of the study was to discern the potential ability of serum NLRC4 in assessment of prognosis after intracerebral hemorrhage (ICH).

Methods: In this prospective, observational study, serum NLRC4 levels were quantified in 148 acute supratentorial ICH patients and 148 controls.

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Objective: To compare the diagnostic efficacy of the Chinese Thyroid Imaging Reporting and Data Systems (C-TIRADS) with the well-accepted ACR-TIRADS guidelines in identifying benign from malignant thyroid nodules.

Methods: A total of 2064 nodules were collected from 1627 patients undergoing thyroid ultrasonography in our center between October 2019 and November 2021. Nodules were divided into two groups: "≥1 cm" and "<1 cm".

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COVID-19 appears to put people living with HIV and AIDS (PLWHA) at a higher risk of catastrophic consequences and mortality. However, investigations on the hesitancy and vaccination behavior of PLWHA in China were lacking compared to the general population. From January 2022 to March 2022, we conducted a multi-center cross-sectional survey of PLWHA in China.

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Research assessing the changing epidemiology of infectious diseases in China after the implementation of new healthcare reform in 2009 was scarce. We aimed to get the latest trends and disparities of national notifiable infectious diseases by age, sex, province, and season in China from 2010 to 2019. The number of incident cases and deaths, incidence rate, and mortality of 44 national notifiable infectious diseases by sex, age groups, and provincial regions from 2010 to 2019 were extracted from the China Information System for Disease Control and Prevention and official reports and divided into six kinds of infectious diseases by transmission routes and three classes (A-C) in this descriptive study.

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In recent years, the utilization of antibiotics in animal feed has been restricted, probiotics have been increasingly used to replace antibiotics in maintaining animal health. The aim of this study was to screen and evaluate probiotics with excellent probiotic potential from the gut of healthy goslings for clinical application. Thirteen strains of Bacillus (named AH-G201 to AH-G2013), including 2 strains of Bacillus subtilis (B.

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Wheat stripe rust (WSR) is a foliar disease that causes destructive damage in the wheat production context. Accurately estimating the severity of WSR in the autumn growing stage can help to objectively monitor the disease incidence level of WSR and predict the nationwide disease incidence in the following year, which have great significance for controlling its nationwide spread and ensuring the safety of grain production. In this study, to address the low accuracy and the efficiency of disease index estimation by traditional methods, WSR-diseased areas are segmented based on Segformer, and the macro disease index (MDI) is automatically calculated for the measurement of canopy-scale disease incidence.

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Wheat stripe rust, caused by Puccinia striiformis f. sp. (), is a crucial disease for wheat worldwide and constantly threatens wheat production in southwestern and northwestern China, where the environment is a good fit for oversummering and overwintering.

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In recent years, the convolution neural network has been the most widely used deep learning algorithm in the field of plant disease diagnosis and has performed well in classification. However, in practice, there are still some specific issues that have not been paid adequate attention to. For instance, the same pathogen may cause similar or different symptoms when infecting plant leaves, while the same pathogen may cause similar or disparate symptoms on different parts of the plant.

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Background: Dysregulated osteoclast activity due to altered osteoclast differentiation causes multiple bone diseases. Osteoclasts are multinucleated giant cells derived from hematopoietic stem cells and play a major role in bone absorption. However, the mechanisms underlying the tight regulation of osteoclast differentiation in multiple pathophysiological status remain unknown.

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