Publications by authors named "WenJuan Yan"

Background: The optimal restoration protocol for endodontically treated teeth (ETT) remains a subject of debate. This survey aims to assess the current level of awareness, knowledge, and prevailing opinions among dental practitioners in China regarding the application of endocrown versus the post/core/crown ensemble for post-endodontic restoration strategies.

Methods: A validated questionnaire, encompassing three sections, was distributed electronically to dentists practicing in China.

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  • This study investigated the epidemiology and treatment failure risk factors in patients infected with Bacteroides fragilis group (BFG) species, analyzing data from 178 hospitalized patients between 2017 and 2024.
  • The results showed that B. fragilis (69.7%) and B. thetaiotaomicron (16.9%) were the most common species, with many patients having polymicrobial infections, most frequently found in intra-abdominal sites.
  • The research identified distinct demographic and clinical characteristics linked to treatment failure for different BFG species, highlighting that age, existing health conditions, and ICU admissions influenced patient outcomes.
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Background: Postoperative pulmonary complications (PPCs) are associated with a higher risk of morbidity and mortality in patients undergoing cardiac surgery. We aimed to investigate the effect of preoperative interventions on PPCs and length of intensive care unit and hospital stay in patients undergoing cardiac surgery.

Methods: A systematic review and meta-analysis was conducted on randomized or quasi-randomized trials by searching PubMed, Medline, ISI Web of Science, Science Direct, Physiotherapy Evidence Database (PEDro), and the Cochrane Library for all available years until December 2023.

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Lactones has gained increasing attention in recent years due to wide application in polymer and pharmaceutical industries. Traditional synthetic methods of lactones often involve harsh operating temperature, use of strong alkalis and toxic oxidants. Therefore, lactonization of diols under milder conditions have been viewed as the most promising route for future commercialization.

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  • * Postbiotics are non-living microorganisms and their components that may help prevent dental caries by improving oral bacteria balance and reducing susceptibility to cavities.
  • * The review discusses current research on postbiotics in caries prevention, notes areas needing further study, and suggests their possible role in tooth development and personalized dental treatments through epigenetic changes.
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Purpose: This study aimed to assess the stress distribution in pulpotomized primary molars with different types of restorative materials using 3D-finite element analysis (FEA), and provide valuable insights into the selection and application of restorative materials, with the ultimate goal of reducing the risk of pulpotomy failure and protecting residual dental tissue.

Methods: Four 3D models of pulpotomized primary molars with different restorative materials according to the material and its elastic modulus were analysed: resin composite, stainless steel crowns (SSCs), prefabricated zirconia crowns and endocrowns. The food layer was also designed before vertical and bucco-lingual forces were applied to simulate physiological masticatory conditions.

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Bimetallic nanostructured catalysts have shown great promise in the areas of energy, environment and magnetics. Tunable composition and electronic configurations due to lattice strain at bimetal interfaces have motivated researchers worldwide to explore them industrial applications. However, to date, the fundamentals of the synthesis of lattice-mismatched bimetallic nanocrystals are still largely uninvestigated for most supported catalyst materials.

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Statement Of Problem: High-level evidence regarding the accuracy and adaptation of 1-piece endodontic crowns fabricated by using 3-dimensional (3D) printing technology is lacking.

Purpose: The purpose of this in vitro study was to compare the accuracy and adaptation of 1-piece endodontic crowns produced through 3D printing and computer-numerical-control milling technology and to explore the influence of trueness on 1-piece endodontic crown adaptation.

Material And Methods: One-piece endodontic crowns were prepared for a typodont right mandibular first molar, scanned with a 3Shape E3 scanner, and designed with a computer-aided design software program.

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Acephate is commonly used as a seed treatment (ST) in precision agriculture, but its impact on pollinators, earthworms, and soil microorganisms remains unclear. This study aimed to compare the fate of acephate seed dressing (SD) and seed coating (SC) treatments and assess potential risks to bees, earthworms, and soil microorganisms. Additionally, a follow-up study on maize seeds treated with acephate in a greenhouse was conducted to evaluate the maize growth process and the dissipation dynamics of the insecticide.

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Purpose: This study aimed to develop and validate a new model that focused on the risk of imminent vertebral fractures in women with osteoporosis.

Methods: Data from 2,048 patients were extracted from three hospitals, of which 1,720 patients passed the inclusion and exclusion screen. The patients from Nanfang Hospital (NFH) were randomized at a 2:1 ratio to create a training cohort (n = 709) and an internal validation cohort (n = 355), with the patients from the other two hospitals (n = 656) used for external validation.

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  • Researchers found two strains of bacteria originally thought to be Providencia rettgeri, but genome analysis revealed they are distinct enough to be classified as a new species named Providencia xianensis.
  • The new strains demonstrate multidrug resistance and are resistant to last-resort antibiotics, indicating a serious public health threat.
  • Their discovery highlights the need for increased monitoring and proactive measures to combat the spread of these emerging, drug-resistant pathogens.
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Purpose: Since the introduction of ceftazidime-avibactam (CZA) in the Chinese market, accumulating clinical evidence has substantiated its efficacy in the treatment of infections caused by carbapenem-resistant gram-negative bacteria (CR-GNB). Nevertheless, an ongoing debate persists concerning the choice between monotherapy and combination therapy when devising clinical anti-infection protocols.

Patients And Methods: This retrospective, single-center observational study enrolled patients with CR-GNB infections who received CZA treatment between December 2019 and August 2023.

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Extracellular matrix (ECM) remodeling is accompanied by the continuous synthesis and degradation of the ECM components. This dynamic process plays an important role in guiding cell adhesion, migration, proliferation, and differentiation, as well as in tissue development, body repair, and maintenance of homeostasis. Nanomaterials, due to their photoelectric and catalytic properties and special structure, have garnered much attention in biomedical fields for use in processes such as tissue engineering and disease treatment.

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Enhancing the performance of traditional pesticide formulations by improving their leaf surface wetting capabilities is a crucial approach for maximizing the pesticide efficiency. This study develops an emulsifiable concentrate (EC) of 4.5% β-cypermethrin containing oil (BJO).

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Purpose: To analyze the risk factors and clinical outcomes of patients isolated with polymyxin B-resistant (PR) from various clinical specimens to prevent and control the spread of these strains.

Methods: This retrospective case-control study included 72 PR -positive cases and 144 polymyxin B-susceptible (PS) controls from 2018 to 2022. Patients with PR isolated in various clinical cultures were defined as cases.

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Objectives: To observe the effects of acupoint application with turmeric blistering moxibustion plaster on pain, shoulder range of motion (ROM) and upper limb motor function in the patients with post-stroke hemiplegic shoulder pain (PSHSP).

Methods: Eighty-two patients with PSHSP were randomly divided into an observation group (41 cases, 1 case was eliminated, 4 cases dropped out) and a control group (41 cases, 2 cases were eliminated and 2 cases dropped out). The routine treatment, nursing care and rehabilitation training were performed in the control group.

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Chlorfenapyr (CHL) is a pyrrole insecticide with a novel structure that is used to control resistant pests. However, its weak systemic activity limits its application to crop roots. Herein, a novel CHL formulation with improved effective utilization rates and suitability for root application is developed to avoid or reduce contamination caused by pesticide spraying.

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Background: Re-epithelialization is important in the process of wound healing. Various methods have been identified to expedite the process, but their clinical application remains limited. While parathyroid hormone (PTH) has shown promising results in wound healing due to its role in promoting collagen deposition and cell migration, application is limited by its potentially inhibitive effects when being continuously and locally administrated.

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Background: Monolepta hieroglyphica (Motschulsky) is an important agricultural pest that causes significant economic losses in terms of crop production. Conventional pesticide spraying treatments can result in pesticide drift, endanger nontarget organisms and cause pests to fly away, resulting in unsatisfactory prevention and control effects. To study the effect of thiamethoxam on the control of maize M.

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  • The extracellular matrix (ECM) regulates angiogenesis and changes due to aging can reduce blood vessel formation and increase the risk of tissue damage.
  • This can lead to significant health issues that negatively affect quality of life and imposes a heavy financial burden on healthcare systems.
  • The review discusses how age-related ECM changes impact angiogenesis, explores mechanisms behind these interactions, and suggests new therapeutic strategies to improve blood vessel formation in older adults.
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Purpose: To study the etiological characteristics and risk factors affecting the prognosis of patients with polymicrobial bloodstream infections.

Patients And Methods: Overall, 141 patients with polymicrobial bloodstream infections in Henan Provincial People's Hospital during 2021 were included. Laboratory test indexes, department of admission, sex, age, intensive care unit (ICU) admission, surgical history, and central venous catheter placement were collected.

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The extracellular matrix (ECM) plays a crucial part in regulating stem cell function through its distinctive mechanical and chemical effect. Therefore, it is worth studying how to activate the driving force of osteoblast cells by dynamic changing of ECM and accelerate the bone regeneration. In this research, a novel peptide MY-1 is designed and synthesized.

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Introduction: In China, the long-term immunogenicity and adverse effects of inactivated vaccines produced by different or the same manufacturer remain unclear. Therefore, the objective of this study was to evaluate the cellular immune responses and neutralizing antibody kinetics of homologous and heterologous administrations of an inactivated coronavirus disease 2019 (COVID-19) vaccine 240 days after the second vaccination.

Methods: This prospective, multicenter, observational, longitudinal study involved 595 participants with a negative SARS-CoV-2 polymerase chain reaction result who were serologically tested and followed for 8 months after vaccination.

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Purpose: To evaluate the performance of five widespread commercial products for colistin and polymyxin B susceptibility testing in China for -positive and -negative and .

Methods: A total of 132 and 83 strains (including 68 -positive and 28 -positive ) were collected. We analysed the performance of colistin susceptibility (with Vitek 2 and Phoenix M50) and the performance of polymyxin B susceptibility (with DL-96II, MA120, and a Polymyxin B Susceptibility Test strip; POL E-strip).

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