Publications by authors named "Junmei Zhang"

Virus budding is a critical step in the replication cycle of enveloped viruses, closely linked to viral spread, disease progression, and clinical outcomes. The budding of many enveloped RNA viruses is facilitated by the hijacking of the host endosomal sorting complex required for transport (ESCRT) proteins through viral late domains. These late domains are essential for progeny virus production and are highly conserved, making the interaction between late domains and host ESCRT proteins a potential target for the development of antiviral therapeutics.

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Objectives: The study aimed to assess the incidence of post-coblation tonsillectomy hemorrhage (PCTH) and identify associated risk factors in a pediatric Chinese population.

Methods: This prospective, multicenter cohort study, conducted over 17 months, included 8854 pediatric patients who underwent coblation tonsillectomy across 15 research centers in China. Patient data were collected through an Electronic Data Capture (EDC) system.

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Water-soluble N-doped fluorescent (FL) carbon dots (ACDs) were successfully fabricated hydrothermally using ampicillin sodium as sole precursor. The produced ACDs exhibit satisfactory optical behavior, favorable photostability, and acceptable water solubility. With bright blue emission at 450 nm, the ACDs were utilized for multivariate sensing Fe and Cu based on the synergistic effect of the inner filter effect (IFE) and static quenching with detection limits of 0.

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A cellular protein, non-POU-domain-containing octamer binding protein (NONO), bound to the replication complex of Japanese encephalitis virus (JEV) by directly interacting with the viral 3' UTR RNA and NS3 protein. These interactions were also identified in West Nile virus (WNV) and Zika virus (ZIKV). The infection of JEV or the expression of JEV NS3 protein in cells could induce relocation of NONO protein from the nucleus to the cytoplasm.

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  • Regulatory T cells (Tregs) are important for keeping the immune system balanced and preventing autoimmune diseases, with recent research highlighting how mitochondrial functions influence their effectiveness.* -
  • Tregs rely on processes like oxidative phosphorylation and fatty acid oxidation for energy, where mitochondrial fusion improves their performance, while excessive fission can reduce their functionality and increase harmful reactive oxygen species (ROS).* -
  • Mitochondrial ROS levels play a crucial role in Treg regulation, as balanced ROS support Treg function, whereas too much ROS can lead to dysfunction; understanding these dynamics paves the way for new treatments for autoimmune diseases and cancer.*
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  • The study investigates juvenile dermatomyositis (JDM), a rare autoimmune disease affecting children, focusing on its epidemiological characteristics and economic impact in China.
  • Data from 1,164 JDM patients across 24 hospitals indicated a gender ratio of 1:1.23 and revealed that over half of the patients required multiple hospitalizations, with significant lung involvement being the most common complication.
  • The findings highlight the severity and social burden of JDM in China, providing crucial insights for better management and understanding of the disease.
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  • Hemorrhage after tonsil surgery in children poses serious risks, leading to a study aimed at creating a risk warning model for predicting bleeding post-surgery.
  • The study analyzed data from 8,854 children who underwent tonsillectomy, ultimately focusing on 2,724 cases, to distinguish between those who experienced bleeding and those who did not.
  • Using a random forest algorithm, the model achieved a high prediction accuracy of 98.72% for postoperative bleeding, demonstrating potential for improving clinical decision-making despite needing to enhance the recall rate.
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Overgrowth of Gardnerella vaginalis causes an imbalance in vaginal microecology. The pathogenicity of G. vaginalis is directly regulated by the cAMP receptor protein (CRP).

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Objective: This study aims to assess current diagnostic and management for systemic Juvenile Idiopathic Arthritis (sJIA) among physicians, evaluate the challenges encountered in diagnosis and treatment, and identify the educational needs and professional development engagements of physicians managing sJIA.

Methods: A nationwide survey was conducted from November 2023 to March 2024 across tertiary and secondary pediatric and general hospitals in China. The survey targeted physicians with at least three years of specialty experience, resulting in 310 valid responses from 25 provinces, autonomous regions, and municipalities.

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Superionic conductor-based solid-state electrolytes with preferred crystal structures hold great promise for realizing ultrafast lithium-ion (Li) transfer, which is urgently desired for all-solid-state lithium batteries. However, the precise control of crystal growth of superionic conductors is still challenging since the crystals always spontaneously grow to disordered structures with the lowest internal energy to ensure thermodynamic stability. Herein, a coaxial nanowire with a polyvinylpyrrolidone (PVP) sheath and a LiLaTiO (LLTO) precursor core (PVP/LLTO-caNW) is prepared through coaxial electrospinning, followed by sintering into LLTO nanowire with an oriented crystal structure (LLTO-caNW).

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In the process of tumor metastasis, tumor cells can acquire invasion by excessive uptake of nutrients and energy and interact with the host microenvironment to shape a premetastatic niche (PMN) that facilitates their colonization and progression in the distal sites. Pyruvate is an essential nutrient that engages in both energy metabolism and remodeling of the extracellular matrix (ECM) in the lungs for PMN formation, thus providing a target for tumor metastasis treatment. There is a paucity of strategies focusing on PMN prevention, which is key to metastasis inhibition.

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Objectives: Given the limited tocilizumab (TCZ) treatment data for systemic juvenile idiopathic arthritis (sJIA) in China, we evaluated the long-term efficacy and safety of TCZ in Chinese patients with sJIA.

Method: In this multicentre, interventional Phase IV study, patients with sJIA and inadequate clinical response to non-steroidal anti-inflammatory drugs/corticosteroids received TCZ infusions every 2 weeks based on body weight (< 30 kg, 12 mg/kg; ≥ 30 kg, 8 mg/kg), over a 52-week open-label period and an 8-week safety follow-up period. The primary endpoint was the proportion of patients with a JIA American College of Rheumatology (ACR) 30 response and absence of fever at Week 12.

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Objectives: In recent years, the distinct clinical presentations and elevated mortality rates of various subtypes of juvenile idiopathic arthritis (JIA) with pulmonary involvement have garnered significant attention. This study aimed to elucidate the clinical characteristics of pulmonary involvement in patients with JIA to improve clinicians' knowledge.

Methods: This single-centre retrospective study analysed the baseline data, treatment options, follow-up of sixty patients of JIA with pulmonary involvement in China.

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Objective To preliminarily explore the composition characteristics of gut microbiota in mice with type 2 diabetes mellitus (T2DM) and experimental periodontitis, and their correlation with serum IL-17 levels, aiming to provide new insights and evidence for related experimental studies. Methods A total of 42 SPF-grade C57BL/6J mice were randomly selected, with 24 used for T2DM modeling. Successfully modeled T2DM mice were divided into the T2DM group (ND group, n=8) and T2DM with experimental periodontitis group (PD group, n=8).

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Using a multi-product trade model, this study investigates the impact of temperature on firms' diversification in the export market. Using export and meteorological data of Chinese firms from 2000 to 2016, the empirical results confirm an inverted U-shaped relationship, implying that extreme temperatures significantly reduce firms' export product diversification. The analysis shows that extreme temperatures primarily reduce the variety of both new and existing products, with a less robust effect on product exit strategies.

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Toxoplasma gondii (T. gondii) is widely spread around the world, which can cause serious harm to immunosuppressed patients. Currently, the commercial test kits are poor at assessing T.

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Article Synopsis
  • - The study aimed to identify key factors for evaluating disability in older adults by analyzing scientific literature.
  • - A systematic review process was used to extract data from 137 studies, linking nearly 97.7% of the identified concepts to 52 relevant aspects of the International Classification of Functioning (ICF).
  • - The findings will help create a standardized set of measurement tools for disability evaluation in older adults, facilitating better data comparison and further research.
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Background: Fecal microbiota transplantation (FMT) is recommended for treating patients with recurrent infection (CDI). However, the therapeutic efficacy of FMT in elderly patients with complex medical conditions remains uncertain. The new method of FMT, washed microbiota transplantation (WMT) has been widely used in China to improve the safety of transplantation.

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Background: This study aimed to determine the diagnostic accuracy of CA125, HE4, systemic immune-inflammation index (SII), prognostic nutritional index (PNI), fibrinogen-to-albumin ratio (FAR), neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), monocyte-to-lymphocyte ratio (MLR), and the combination of the six inflammatory-nutritional markers for ovarian cancer (OC) to identify the best diagnostic indicator for OC early diagnosis. An extensive study was performed to establish the connection between these indicators and the pathological aspects of OC.

Methods: A total of 170 individuals were included in this study, with 87 diagnosed with OC and 83 with benign ovarian tumors (BOTs).

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Surface activation is considered to regulate the electronic structures of materials for enhancing catalytic capability. Herein, we report a controllable strategy for constructing three-dimensional micro-nanoporous copper catalysts with high reactivity and activity for the degradation reaction of organic pollutants. Various micro-nanoporous structures and formation processes by chemical selective dealloying of Cu-based metallic glasses are evaluated due to the surface modification.

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Importance: Systemic lupus erythematosus (SLE) is a diffuse connective tissue disease with complex clinical manifestations and prolonged course. The early diagnosis and condition monitoring of SLE are crucial to disease prognosis.

Objective: To assess the diagnostic value of long noncoding RNA (lncRNA) nuclear enriched abundant transcript 1 (NEAT1) in childhood-onset SLE (cSLE).

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Article Synopsis
  • Feed efficiency (FE) in pig production is influenced by gut microbiota, but existing research is scattered and lacks organization.
  • The authors developed a comprehensive knowledge graph called Pig Gut Microbial Knowledge Graph (PGMKG) by integrating unstructured information from 157 scientific studies with structured database data.
  • The PGMKG helps identify crucial microbes affecting FE and provides insights into their metabolites and metabolic pathways to enhance pig health and production.
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Hantaan virus (HTNV) infection can cause hemorrhagic fever with renal syndrome (HFRS) in humans, and currently, there are no long-standing protective vaccines or specific antivirals available. Guanylate-binding protein 1 (GBP1) is an interferon-stimulated gene that defends against various pathogen infections. However, the function of GBP1 in HTNV infection remains unknown.

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