751 results match your criteria: "Zhengzhou University Zhengzhou[Affiliation]"

This study investigates the association between prenatal exposure to dioxin-like polychlorinated biphenyls (DL-PCBs) and glucocorticoid and androgenic hormone levels in cord blood. We analyzed cord blood samples from 500 mother-infant pairs from China (2022-2023), focusing on hormones including cortisol, cortisone, dehydroepiandrosterone (DHEA), and androstenedione. The main analysis revealed significant reductions in cortisol levels with increased exposure to PCB-77 (β = -3.

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Primary cutaneous anaplastic large cell lymphoma (pcALCL) is a type of skin T-cell lymphoma with a favorable prognosis. Some patients may experience recurrence, but systemic involvement is rare. Some studies suggest that systemic progression is associated with poor prognosis.

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Background: Liver Hepatocellular Carcinoma (LIHC) is a prevalent and aggressive liver cancer with limited therapeutic options. Identifying key genes involved in LIHC can enhance our understanding of its molecular mechanisms and aid in the development of targeted therapies. This study aims to identify differentially expressed genes (DEGs) and key hub genes in LIHC using bioinformatics approaches and experimental validation.

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Cellular senescence is characterized by a stable cell cycle arrest and a hypersecretory, proinflammatory phenotype in response to various stress stimuli. Traditionally, this state has been viewed as a tumor-suppressing mechanism that prevents the proliferation of damaged cells while activating the immune response for their clearance. However, senescence is increasingly recognized as a contributing factor to tumor progression.

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An imbalance in the serum sodium to chloride ratio (Na/Cl) was linked to higher mortality among heart failure patients. Nonetheless, the prognostic significance of Na/Cl in individuals undergoing peritoneal dialysis (PD) remains unexplored. This study seeks to explore the association between initial Na/Cl levels and mortality in PD patients.

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Arachidonic acid synergizes with aspirin preventing myocardial ischemia-reperfusion injury and mitigates bleeding risk.

Cardiovasc Res

January 2025

State Key Laboratory of Cardiovascular Disease, Clinical Pharmacology Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.

Aims: The therapeutic efficacy of coronary revascularization is compromised by myocardial ischemia-reperfusion (MI/R) injury. Higher levels of circulating arachidonic acid (AA) are reportedly associated with lower risk of cardiovascular disease. The cyclooxygenase (COX) pathway metabolizes AA into prostaglandins (PGs) and the platelet-activating thromboxane A2 (TXA2), which is inhibited by aspirin.

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Objectives: To investigate the effects of suberoylanilide hydroxamic acid (SAHA) on lung fibroblast activation and to examine the role of p66Shc in this process.

Methods: An in vitro pulmonary fibrosis model was established using transforming growth factor-β (TGF-β)-induced MRC-5 lung fibroblasts. The proliferation and migration capacities of MRC-5 cells, along with the expression of fibrosis-related genes, were assessed following treatment with SAHA and/or silence of p66Shc.

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Direct conversion of CO with renewable H to produce methanol provides a promising way for CO utilization and H storage. Cu/ZnO catalysts are active, but their activities depend on the preparation methods. Here, we reported a facile mechanical grinding method for the fast synthesis of Cu@zeolitic imidazolate framework-8 (ZIF-8) derived Cu/ZnO catalysts applied in CO hydrogenation to methanol.

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The Conference 2024 provides a platform to promote the development of an innovative scientific research ecosystem for microbiome and One Health. The four key components - Technology, Research (Biology), Academic journals, and Social media - form a synergistic ecosystem. Advanced technologies drive biological research, which generates novel insights that are disseminated through academic journals.

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Harvesting ionic power from a neutralization reaction through a heterogeneous graphene oxide membrane.

Chem Sci

January 2025

Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 China

Nanofluidics is a system of fluid transport limited to a nano-confined space, including the transport of ions and molecules. The use of intelligent nanofluidics has shown great potential in energy conversion. However, ion transport is hindered by homogeneous membranes with uniform charge distribution and concentration polarization, which often leads to an undesirable power conversion performance.

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Background: Evidence has firmly established the association between superior cardiovascular health (CVH) and reduced susceptibility to cardiometabolic diseases (CMDs). In reality, CVH experiences dynamic fluctuations throughout individuals' lifespans. However, the association between changes in CVH and the impact on CMDs among individuals with different genetic risks remains unclear.

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Novel pressure- and temperature-controlled flexible ureteroscope system with a suction ureteral access sheath: a multicenter retrospective feasibility study.

World J Urol

December 2024

Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 33 Yingfeng Road, Haizhu District, Guangzhou, 510000, Guangdong, China.

Purpose: The purpose of this study was to assess the feasibility of a pressure-controlled and temperature-controlled flexible ureteroscope system (PT Scope™) during flexible ureteroscopy.

Materials And Methods: We developed the PT Scope™, a novel ureteroscope system with capabilities for monitoring and controlling intrarenal pressure and temperature to maintain them within set parameters. Data were retrospectively collected from 48 consecutive patients diagnosed with upper urinary tract stones who underwent flexible ureteroscopic lithotripsy using the PT Scope™ across five centers in China.

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Preparation of two-dimensional (2D) ferromagnetic nanomaterials and the study of their magnetic sources are crucial for the exploration of new materials with multiple applications. Herein, two-dimensional room-temperature ferromagnetic (FM) CaTiO nanosheets are successfully constructed with the assistance of supercritical carbon dioxide (SC CO). In this process, the SC CO-induced strain effect can lead to lattice expansion and introduction of O vacancies.

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Objective: To investigate the effects of high-intensity interval training on lipid metabolism and inflammatory factors in overweight children, and provide clinical guidance and recommendations for children's weight management.

Methods: A retrospective study was conducted to analyze 60 overweight children, who were randomly divided into an experimental group (high-intensity interval training) and a control group (health education as intervention). Baseline data, physical indicators, and biochemical indicators were analyzed.

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The naturally sluggish redox kinetics and limited utilization associated with the sulfur conversion in Zn/S electrochemistry hinder its real application. Herein, we report an phase reconstruction strategy that activates the catalytic activity of vanadium oxides for invoking redox-catalysis to manipulate reversible sulfur conversion. It was identified that the VO@C/S precursor derived from metal organic frameworks could be transformed into VO ·HO@C/S by a facile electrochemical induction process.

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Hydrogel electrolytes have received tremendous research interest in designing flexible zinc-ion secondary batteries, making them highly promising for flexible energy storage and wearable electronic devices. Herein, we report a composite hydrogel electrolyte (CHE) prepared using a fumed silica-doped gelatin hydrogel. This electrolyte is specifically designed for use in rechargeable aqueous Zn/MnO batteries (ReAZMBs).

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Article Synopsis
  • Dust particles carried by westerly winds are a major factor in high-altitude snow darkening and melting over the Tibetan Plateau.
  • A new algorithm for tracking airborne dust sources was developed, utilizing satellite data to enhance accuracy in tracing their origins.
  • The study reveals that significant dust contributions come from the Karakum, Taklimakan, and Thar deserts, each impacting snowmelt differently based on their geographical location.
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Phase transition induced hydrogen activation for enhanced furfural reductive amination over a CoCu bimetallic catalyst.

Chem Sci

December 2024

National Key Laboratory of Biobased Transportation Fuel Technology, School of Chemical Engineering, Henan Center for Outstanding Overseas Scientists, Zhengzhou University Zhengzhou 450001 China

The synthesis of primary amines from renewable biomass and its derivatives through reductive amination has garnered significant attention. How to construct efficient non-noble-metal catalysts that enable low-temperature catalysis still remains challenging. Herein, we report a Cu-doped Co@CoO heterostructure catalyst that features structural Co-CoCuO bifunctional sites, which enable room temperature reductive amination of various aldehydes with 1.

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Double enhancement of protonation and conjugation in donor-imine-donor covalent organic frameworks for photocatalytic hydrogen evolution.

Chem Sci

December 2024

Institute of Biomass Engineering, Key Laboratory of Energy Plants Resource and Utilization of Ministry of Agriculture and Rural Affairs, Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University Guangzhou 510642 China

Covalent organic frameworks (COFs) have emerged as highly promising platforms for photocatalytic water splitting. However, exploring the structure-activity relationships in different COF systems remains challenging. In this study, three donor-imine-donor (D-I-D) COFs as relatively pure model materials were carefully selected to investigate the effect of protonation and conjugation on the mechanism of photocatalytic H evolution.

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Article Synopsis
  • Hyperuricemia is a key aspect of metabolic syndrome, leading to issues like gout and kidney problems due to high uric acid levels caused by overproduction and poor excretion.
  • The production of uric acid mainly comes from the breakdown of purine nucleotides, with xanthine oxidase being the main enzyme involved; changes in uric acid transport proteins can also impact levels.
  • Natural plant compounds have shown potential in lowering uric acid by inhibiting xanthine oxidase, enhancing uric acid excretion, and reducing inflammation, making them important in research for treating hyperuricemia and its complications.
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Hydrogels are distinguished by their exceptional ability to absorb and retain large volumes of water within their complex three-dimensional polymer networks, which is advantageous for the development of intraocular lenses (IOLs). Their innate hydrophilicity offers an optimal substrate for the fabrication of IOLs that simulate the natural lens' accommodation, thereby reducing irritation and facilitating healing after surgery. The swelling and water retention characteristics of hydrogels contribute to their notable biocompatibility and versatile mechanical properties.

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Objective: To assess the therapeutic efficacy of abiraterone combined with prednisone in patients with castration-resistant prostate cancer (CRPC) and investigate its effects on miR-221/222 expression.

Methods: A retrospective cohort of 43 CRPC patients from Henan Provincial People's Hospital, People's Hospital of Zhengzhou University was divided into two groups: the treated group (n=22, treated with abiraterone and prednisone) and the control group (n=21, treated with prednisone acetate alone). Expression of miR-221/222 was quantified in CRPC cell lines using quantitative fluorescence polymerase chain reaction.

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Background And Aims: The optimal management strategy for newly diagnosed pulmonary ground-glass nodules (GGNs) with suspected inflammatory etiology remains controversial in clinical practice. Empirical anti-inflammatory therapy is commonly used, but its efficacy compared with that of follow-up observation lacks high-quality evidence. Therefore, this study aims to compare the effectiveness of empirical anti-infective therapy and follow-up observation for pulmonary GGNs in real-world settings.

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Article Synopsis
  • - Mitochondria are crucial for the health and functioning of retinal cells, and problems with mitochondria are linked to various retinal degenerative diseases, particularly in cases involving mutations.
  • - This study focused on how specific mutations related to ARL3 affect mitochondrial function in fibroblast cells from patients with ARL3-related rod-cone dystrophy, revealing decreased mitochondrial respiration and increased harmful reactive oxygen species (ROS).
  • - Comparative testing in another cell type (ARPE-19) indicated that ARL3 mutations lead to both decreased mitochondrial function and increased apoptosis, highlighting the complex relationship between these mutations and mitochondrial health.
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