Publications by authors named "Jian-Feng Chen"

Background: Primary focal hyperhidrosis (PFH) is a neurological dermatological disorder characterized by localized, excessive sweating. Current treatments have limitations, and postoperative compensatory hyperhidrosis remains a concern. Aquaporin 5 (AQP5) and neurologic factors such as Brain-Derived Neurotrophic Factor (BDNF) and Neuregulin-1 (NRG-1) are known to play key roles in sweat regulation.

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Low efficacy and frequent use of conventional pesticide formulations have led to various food safety and ecological concerns. Green and effective nanoformulation offers promising solutions to water-insoluble pesticides. Herein, we prepared a water-based nanoparticulate formulation of lambda-cyhalothrin (LC WBNF) using high-gravity rotating packed bed (RPB) combined with lyophilization.

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Enhancing the built-in electric field (BIEF) in heterojunctions remains a pivotal challenge for developing efficient photocatalysts. Herein, a high-gravity-assisted approach utilizing rotating packed bed (RPB) is proposed to instantaneously and continuously construct CsBiBr/TiO (CBB/TiO) heterojunctions with intensified BIEF, intimate interfacial contact, and accelerated charge-transfer kinetics, overcoming the constraints of traditional electrostatic self-assembly techniques. Compared to the counterpart of batch-type stirred tank (ST), the optimized heterojunction exhibits a 1.

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Objectives: Periodic quality control (QC) testing of ultrasound (US) imaging systems is essential to ensure and maintain image quality and safety. The study aims to analyze QC findings from medical physics annual surveys of modern clinical US systems in a multi-institutional survey.

Methods: QC results from annual surveys between 2018 and 2021 were retrospectively collected from 12 medical physicists from 11 institutions or consulting companies (hereafter referred to as sites).

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Background: Aorto-iliac calcification (AIC) is increasingly recognized as a prognostic marker in kidney transplantation, yet its relationship with long-term outcomes remains unclear.

Purpose: To evaluate whether pre-transplant AIC scores independently predict post-transplant mortality and renal function (eGFR trajectory) in kidney transplant recipients.

Methods: We retrospectively analyzed 150 renal transplant recipients ≥ 40 years old who underwent pre-transplant abdominopelvic CT within 3 years of surgery (2005-2018).

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Objective: To evaluate the influence of Gamma Knife stereotactic body radiotherapy (SBRT) on the hematological system in patients with advanced lung cancer and to assess its clinical outcomes.

Methods: A retrospective analysis was conducted on the clinical data of 192 patients with advanced lung cancer. 108 patients who received conventional radiotherapy were included in the control group, and the rest 84 patients who received Gamma Knife SBRT were included in the experimental group.

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The exposure of mRNA to water is likely to contribute to the instability of RNA vaccines upon storage under nonfrozen conditions. Using atomistic molecular dynamics (MD) simulations, we investigated the pH-dependent structural transition and water penetration behavior of mRNA-lipid nanoparticles (LNPs) with the compositions of Moderna and Pfizer vaccines against COVID-19 in an aqueous solution. It was revealed that the ionizable lipid (IL) membranes of LNPs were extremely sensitive to pH, and the increased acidity could cause a rapid membrane collapse and hydration swelling of LNP, confirming the high releasing efficiency of both LNP vaccines.

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Article Synopsis
  • ICAM-1 is often overexpressed in non-small cell lung cancer (NSCLC), which is linked to worse patient outcomes, but the reasons for its harmful effects are not fully understood.
  • Research shows that the survival of NSCLC cells relies on a signal from the interaction between fibrinogen γ chain (FGG) and ICAM-1, which activates survival pathways and prevents cell death.
  • By inhibiting the interaction between ICAM-1 and FGG with a developed monoclonal antibody, researchers were able to decrease NSCLC cell survival and tumor growth in experiments, suggesting a new targeted therapy approach for NSCLC.
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An intelligent delivery nanoformulation could enhance the utilization efficacy, uptake, and translocation of pesticides in plants. Herein, a redox/pH-triggered and fluorescent smart delivery nanoformulation was designed and constructed by using hollow mesoporous organosilica nanoparticles (HMONs) and ZnO quantum dots as the nanocarrier and capping agent, respectively. Boscalid was further loaded to generate Boscalid@HMONs@ZnO with a loading rate of 9.

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Immunotherapy elicits a systemic antitumour immune response in peripheral circulating T cells. However, the T cell trafficking circuit between organs and their contributions to antitumour immunity remain largely unknown. Here we show in multiple mouse leukaemia models that high infiltration of leukaemic cells in bone marrow (BM) stimulates the transition of CD8CD44CD62L central memory T cells into CD8CD44CD62L T cells, designated as inter-organ migratory T cells (T cells).

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Article Synopsis
  • The study investigates how integrins on lymphocytes are quickly activated to facilitate their immediate arrest in response to chemokines while they are rolling through blood vessels.
  • It shows that the chemokine CCL25 causes a rapid drop in extracellular calcium levels, triggering the activation of integrin αLβ2 in T cells before the traditional inside-out activation process takes place.
  • Moreover, blocking calcium influx impairs T cell movement and their ability to home to inflamed skin in a psoriasis mouse model, suggesting that this rapid activation is crucial for effective lymphocyte function and inflammation control.
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  • Migrasomes are specialized organelles formed by migrating neutrophils and play a crucial role in blood clotting (haemostasis).
  • They are abundant in both mouse and human blood and enhance coagulation by binding coagulation factors and adhesion molecules, especially at injury sites.
  • Reducing neutrophils or migrasomes impairs blood clot formation, but injecting purified migrasomes can restore it, suggesting their importance in coagulation disorders and potential for new treatments.
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has been identified as a participant in integrin-linked kinase signaling pathways, influencing epithelial-mesenchymal transition and thereby affecting tumor initiation, progression, and invasion. While the character of in the tumor microenvironment (TME) as well as its implications for immunotherapy remain unclear. Thus, we conducted a comprehensive analysis to assess the prognostic significance of using Kaplan-Meier analysis.

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Article Synopsis
  • Platinum-based alloys are gaining interest for their varied compositions and electrochemical properties, but achieving uniform element distribution at the nanoscale is challenging.
  • A novel method using high gravity technology successfully creates uniformly alloyed and adjustable-sized Pt-based nanoflowers under room temperature conditions.
  • The PtAg nanoflowers exhibit superior catalytic activity for methanol oxidation, outperforming traditional methods, with enhanced performance attributed to improved electronic properties from their high alloying level.
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Extremely inefficient utilization of pesticides has prompted a study of low-cost, sustainable, and smart application systems. Herein, as a promising pesticide nanocarrier, hollow mesoporous organosilica nanoparticles (HMONs) were first synthesized by using inexpensive CaCO nanoparticles as the hollow templates. A redox/near-infrared light dual-triggered pesticide release system was further achieved via loading avermectin (AVM) into the HMONs and coating a layer of polydopamine (PDA).

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Purpose: This study evaluated the effect of hot etching with two acid solutions on the surface topography and bond strength of zirconia.

Methods: Firstly, twenty-four pieces of zirconia with a size of 10 mm×10 mm×2 mm and 20 pieces of zirconia with a size of 3 mm×3 mm×2 mm were prepared. Then pieces were divided into four groups, and dealt with separately according to the following groups: no treatment (group A), sandblasting (group B), hot etching with HCl(group C), hot etching with HF(group D).

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Background: Treating complex cases of spinal tuberculosis (STB) that involve multiple vertebral bodies and cause destruction of the spinal structure, kyphotic deformity, and acute nerve injury can be challenging. This report describes the course of treatment and 5-year follow-up of a complex case of multisegmental STB.

Case Presentation: This report describes a case of tuberculosis affecting the vertebrae extending from thoracic 12 to lumbar 5 in a 60-year-old woman who suffered sudden paralysis in both lower extremities.

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Benefiting from high energy density (2,600 Wh kg) and low cost, lithium-sulfur (Li-S) batteries are considered promising candidates for advanced energy-storage systems. Despite tremendous efforts in suppressing the long-standing shuttle effect of lithium polysulfides, understanding of the interfacial reactions of lithium polysulfides at the nanoscale remains elusive. This is mainly because of the limitations of in situ characterization tools in tracing the liquid-solid conversion of unstable lithium polysulfides at high temporal-spatial resolution.

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Controlled pesticide delivery systems offer many distinctive advantages over conventional pesticide formulations. In this work, degradable poly(-isopropylacrylamide) (PNIPAM)-tannic acid (TA) microgels and multifunctional PDA@PNIPAM-TA nanocomposites were prepared in a high-gravity rotating packed bed reactor (RPB) for smart pesticide delivery and release. The as-prepared microgels and nanocomposites showed reversible temperature-dependent swelling/deswelling behavior and irreversible pH-induced degradation.

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The preservation and accessibility of pores are prerequisites to the application of metal-organic frameworks (MOFs). Activation is a key step to eliciting rich features of pores, but it needs a repeated solvent-exchange process which is tedious and time/cost-consuming. Herein, a facile strategy for highly-efficient activation of MOFs utilizing rotating packed bed is proposed.

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Background: Retinopathy is the most common microvascular disease of type 2 diabetes, and seriously threatens the life, health and quality of life of patients. It is worth noting that the development of diabetic retinopathy (DR) can be hidden, with few symptoms. Therefore, the preliminary screening of diabetic patients should identify DR as soon as possible, delay disease progression, and play a vital role in its diagnosis and treatment.

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Background: Primary focal hyperhidrosis (PFH) may be attributed to the up-regulation of the cholinergic receptor nicotinic alpha 1 subunit (CHRNA1) in eccrine glands. Plasminogen activator inhibitor-1 (PAI1, encoded by SERPINE1) is reported to inhibit the expression of CHRNA1, while the role of PAI1 in hyperhidrosis is unknown.

Methods: Serpine1 KO mice, Serpine1-Tg mice, and wild type BALB/c mice were intraperitoneally injected with pilocarpine hydrochloride to induce PFH.

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The value of CT-guided puncture with methylene blue mixed with autologous blood in preoperative localization of pulmonary nodules and masses was explored. A total of 113 patients with 146 nodules and masses were treated with methylene blue mixed with autologous blood for preoperative localization and thoracoscopic surgery in the Department of Thoracic Surgery, the First Affiliated Hospital of Fujian Medical University between October 2021 and October 2022. The localization effect, complications, and pathological conditions were observed.

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The pyrolysis of metal-organic frameworks (MOF) has been widely used approach to generate hierarchical structures with the corresponding metal, metal carbide, or metal oxide nanoparticles embedded in a porous carbon matrix with a high specific surface area for industrial catalysis, energy storage and transfer, etc. MOF-derived heterogeneous catalysts can be constructed by the encapsulation of carbon dots (CDs) with plenty of hydroxyl and amine groups to enhance the performance of the final product. Controlled formation of metallic carbon structures at the nanoscale, especially matter cycling and transformation on the nanoscale interface, is important for the production of industrial catalysts as well as the research of materials science and engineering progress.

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