1,305 results match your criteria: "Second Affiliated Hospital of Zhengzhou University[Affiliation]"

Varicose veins of the lower extremities (VVs) is a common chronic vascular disease, with high prevalence rates in some countries; however, their pathogenesis remains unclear. Some studies have identified associations between changes in specific plasma lipid molecules, such as phosphatidylethanolamine (PE), phosphatidylcholine (PC), and sphingomyelin (SM), and the onset of VVs, but due to confounders and reverse causality, the causal relationship remains unclear. Meanwhile, studies on the potential link between other plasma lipids beyond PE, PC, and SM and the risk of VVs in the lower extremities are lacking.

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  • - Syncope is a common issue in emergency departments and can be caused by various factors, with carotid sinus hypersensitivity (CSS) being a significant one affecting quality of life.
  • - A 43-year-old man with recurrent syncope was diagnosed with CSS after thorough evaluation and treated with a stellate ganglion block over 12 days.
  • - Post-treatment, the patient showed symptom improvement and remained symptom-free during a 7-month follow-up, suggesting the need for more research on stellate ganglion block therapy as a potential treatment for CSS.
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  • Accurate detection of organophosphate pesticides (OPs) is essential for food safety, and the study utilizes dendritic mesoporous silica spheres to enhance the fluorescent properties of gold nanoclusters (AuNCs).
  • A new fluorescent method for detecting OPs was developed, based on the interaction of copper (Cu) and thiocholine, which affects fluorescence levels in the presence of OPs like paraoxon.
  • The study offers a portable testing solution using a smartphone-compatible device, enabling on-site monitoring of paraoxon with an impressive limit of detection, emphasizing the potential for more efficient food analysis.
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Background: Currently, tumor budding (TB) is defined as an important factor for a poor prognosis in various types of cancers. The authors identified a significant presence of TB-like structures at the tumor invasive front in giant cell tumor of bone (GCTB), which may have the same biologic function as TB. The objective of this report was to describe the distribution of TB in GCTB and investigate its correlation with clinicopathologic characteristics, the immune microenvironment, survival prognosis, and response to denosumab treatment.

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Increasing cohort studies have examined the link between mitochondrial DNA copy number (mtDNA-CN) and cardiovascular disease (CVD), with inconsistent findings. We searched PubMed, EMBASE, and Web of Science up to July 11, 2023 and used a random-effects model to calculate summary hazard ratios (HRs) and 95% confidence intervals (CIs). This systematic review and meta-analysis included 8 articles encompassing 29 studies with 646,398 participants.

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Discrete Macrocyclic Polymer Hosts-Induced Cascade Luminescence Enhancement and Application in Bioimaging.

Chemistry

December 2024

Institute for Sustainable Energy and Resources, College of Chemistry and Chemical Engineering, Qingdao University, 308 Ningxia Road, Qingdao, 266071, P. R. China.

The integration of polymers, supramolecular macrocycles and aggregation-induced emission (AIE) molecules provides numerous possibilities for constructing various functional supramolecular systems. Herein, we constructed supramolecular assembled systems based on discrete macrocyclic polymer hosts via the cooperation of hydra-headed macrocycles containing two or three pillar[5]arene units (defined as P2, P3), the block polymer F127 and AIE molecules (alkyl-cyano modified tetraphenylethene, alkyl-triazole-cyano modified 9,10-distyrylanthracene, defined as TPE-(CN) and DSA-(TACN)). Compared with the binary assembly between hydra-headed hosts or F127 and AIE molecules, cascaded supramolecular assembly-induced emission enhancement (SAIEE) in aqueous solution was achieved in discrete macrocyclic polymer-based supramolecular assembled systems.

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Identifying a Ubiquitinated Adaptor Protein by a Viral E3 Ligase Through Co-immunoprecipitation.

Methods Mol Biol

August 2024

Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada.

Co-immunoprecipitation is a technique widely utilized to isolate protein complexes and study protein-protein interactions. Ubiquitinated proteins could be identified by combining co-immunoprecipitation with SDS-PAGE followed by immunoblotting. In this chapter, we use Herpes Simplex Virus 1 immediate-early protein ICP0-mediated polyubiquitination of p50 as an example to describe the method to identify a ubiquitinated adaptor protein by a viral E3 ligase by co-immunoprecipitation.

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Identifying an Abnormal Phosphorylated Adaptor by Viral Kinase Using Mass Spectrometry.

Methods Mol Biol

August 2024

Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada.

Mass spectrometers are widely used to identify protein phosphorylation sites. The process usually involves selective isolation of phosphoproteins and subsequent fragmentation to identify both the peptide sequence and phosphorylation site. Immunoprecipitation could capture and purify the protein of interest, greatly reducing sample complexity before submitting it for mass spectrometry analysis.

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Movement disorders related to antidiabetic medications: a real-world pharmacovigilance study.

Prog Neuropsychopharmacol Biol Psychiatry

December 2024

Henan Provincial Key Laboratory of Pediatric Hematology, Children's Hospital Affiliated to Zhengzhou University, Henan Province 450053, China.

Background: Diabetic Mellitus (DM) has progressively emerged as a worldwide health problem, leading to the widespread deployment of antidiabetic drugs as the primary therapy in the global population. The incidence of diabetes medications-related movement disorders (drMD) is noteworthy but underestimated by clinical practitioners.

Research Design And Methods: In order to address the incidence of drMD in DM patients and realize the serious outcomes associated with drMD, we conducted a real-world pharmacovigilance study of 612,043 DM patients using the FDA Adverse Event Reporting System (FAERS) database from January 2004 to September 2023.

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Purpose: The prognostic value of lymphocyte infiltration score (LIS) and its nearest neighbor distance to tumor cells (NNDTC) in giant cell tumor of bone (GCTB) is currently not well established. This study aims to characterize LIS and NNDTC and examine their correlation with denosumab treatment responsiveness, clinicopathologic features, and patient prognosis.

Methods: Using multiplexed quantitative immunofluorescence, LIS was evaluated in 253 tumor specimens, whereas NNDTC was computed using HALO software.

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The purpose of the study was to explore the predictive value of preoperative quantitative NCCT analysis for proximal and middle ureteral stone impaction. Data of 128 patients who diagnosed with proximal and middle ureteral stones were analyzed. Stone size, upper diameter of the ureter(D1), lower diameter of the ureter (D2), CT attenuation of the ureter above the stone (HA, 'HU above'), CT attenuation of the ureter below the stone (HB, 'HU below'), CT attenuation values of the stone's proximal segments (C1), CT attenuation values of the stone's distal segments (C2), and ureteral wall thickness(UWT)were recorded.

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Ischemic stroke poses a significant global health burden, with rapid revascularization treatments being crucial but often insufficient to mitigate ischemia-reperfusion (I/R) injury. Dexmedetomidine (DEX) has shown promise in reducing cerebral I/R injury, but its potential molecular mechanism, particularly its interaction with non-coding RNAs (ncRNAs), remains unclear. This study investigates DEX's therapeutic effect and potential molecular mechanisms in reducing cerebral I/R injury.

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ERP29 regulates the proliferation of endometrial carcinoma via M6A modification.

Life Sci

October 2024

Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Zhengzhou University, 2nd, Jingba Road, Zhengzhou 450053, Henan Province, China. Electronic address:

Aims: Endoplasmic reticulum protein 29 (ERP29) is crucial for endoplasmic reticulum stress (ERS). M6A plays an important role in the progression of endometrial cancer (EC). The study investigated the role of ERS-related gene (ERP29) and m6A in EC.

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The MASS cohort comprises 2000 ICU patients with severe pneumonia, covering community-acquired pneumonia, hospital-acquired pneumonia, and ventilator-associated pneumonia, sourced from 19 hospitals across 10 cities in three provinces. A wide array of samples including bronchoalveolar lavage fluid, sputum, feces, and whole blood are longitudinally collected throughout patients' ICU stays. The cohort study seeks to uncover the dynamics of lung and gut microbiomes and their associations with severe pneumonia and host susceptibility, integrating deep metagenomics and transcriptomics with detailed clinical data.

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Background: Despite the potential demonstrated by targeted plasma metabolite modulators in halting the progression of chronic kidney disease (CKD), a lingering uncertainty persists concerning the causal relationship between distinct plasma metabolites and the onset and progression of CKD.

Methods: A genome-wide association study was conducted on 1,091 metabolites and 309 metabolite ratios derived from a cohort of 8,299 unrelated individuals of European descent. Employing a bidirectional two-sample Mendelian randomization (MR) analysis in conjunction with colocalization analysis, we systematically investigated the associations between these metabolites and three phenotypes: CKD, creatinine-estimated glomerular filtration rate (creatinine-eGFR), and urine albumin creatinine ratio (UACR).

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Targeting OGF/OGFR signal to mitigate doxorubicin-induced cardiotoxicity.

Free Radic Biol Med

October 2024

National Health Commission Key Laboratory of Cardiovascular Regenerative Medicine, Central China Fuwai Hospital of Zhengzhou University, Fuwai Central China Cardiovascular Hospital & Central China Branch of National Center for Cardiovascular Diseases, Zhengzhou, Henan, 451464, China; Zhengzhou Key Laboratory of Cardiovascular Aging, Fuwai Central China Cardiovascular Hospital, Zhengzhou, Henan, 451464, China; Henan Key Laboratory of Chronic Disease Management, Fuwai Central China Cardiovascular Hospital, Zhengzhou, Henan, 451464, China. Electronic address:

Enkephalins are reportedly correlated with heart function. However, their regulation in the heart remains unexplored. This study revealed a substantial increase in circulating levels of opioid growth factor (OGF) (also known as methionine enkephalin) and myocardial expression levels of both OGF and its receptor (OGFR) in subjects treated with doxorubicin (Dox).

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Objective: To analyse the global burden, trends and cross-country inequalities of female breast and gynaecologic cancers (FeBGCs).

Design: Population-Based Study.

Setting: Data sourced from the Global Burden of Disease Study 2019.

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Tumor microenvironment-responsive macrophage-mediated immunotherapeutic drug delivery.

Acta Biomater

September 2024

The Research and Application Center of Precision Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, China; Shenzhen Bay Laboratory, Shenzhen 518132, China. Electronic address:

Immunotherapy, as a promising treatment strategy for cancer, has been widely employed in clinics, while its efficiency is limited by the immunosuppression of tumor microenvironment (TME). Tumor-associate macrophages (TAMs) are the most abundant immune cells infiltrating the TME and play a crucial role in immune regulation. Herein, a M0-type macrophage-mediated drug delivery system (PR-M) was designed for carrying Toll-like receptors (TLRs) agonist-loaded nanoparticles.

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Principles and challenges of generative artificial intelligence detection.

Br J Anaesth

October 2024

Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Department of Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China. Electronic address:

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Background: Cadmium chloride (Cd) is a pervasive environmental heavy metal pollutant linked to mitochondrial dysfunction, memory loss, and genetic disorders, particularly in the context of neurodegenerative diseases like Alzheimer's disease (AD).

Methods: This study investigated the neurotherapeutic potential of vitamin B6 (Vit. B6) in mitigating Cd-induced oxidative stress and neuroinflammation-mediated synaptic and memory dysfunction.

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The crosstalk between DNA-damage responses and innate immunity.

Int Immunopharmacol

October 2024

College of Life Sciences, Hebei University, Baoding 071002, China. Electronic address:

DNA damage is typically caused during cell growth by DNA replication stress or exposure to endogenous or external toxins. The accumulation of damaged DNA causes genomic instability, which is the root cause of many serious disorders. Multiple cellular organisms utilize sophisticated signaling pathways against DNA damage, collectively known as DNA damage response (DDR) networks.

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Introduction: With the discovery of extracorporeal membrane oxygenation (ECMO), it is considered as a valuable tool for supporting the treatment of severe acute respiratory distress syndrome (ARDS). It has gained increasing attention, particularly during the COVID-19 epidemic. However, to date, no relevant bibliometric research on the association between ECMO and ARDS (ECMO-ARDS) has been reported.

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Purpose: To investigate the potential causal association between COVID-19 exposure and optic nerve and visual pathway disorders through a two-sample bidirectional Mendelian randomization (MR) analysis, and to provide empirical support for the lung-brain axis.

Methods: This MR analysis utilized publicly accessible summary-level data from genome-wide association studies on COVID-19 (n=158,783) and optic nerve and visual pathway diseases (n=412,181), primarily involving individuals of European descent. The random-effect inverse-variance weighted estimation was applied as the main analytical approach, complemented by MR-Egger, weighted median, and weighted mode methods.

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