139,990 results match your criteria: "Sichuan University; No.17 Block 3[Affiliation]"

Framework Nucleic Acid-Based and Neutrophil-Based Nanoplatform Loading Baicalin with Targeted Drug Delivery for Anti-Inflammation Treatment.

ACS Nano

January 2025

State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China.

Targeted drug delivery is a promising strategy for treating inflammatory diseases, with recent research focusing on the combination of neutrophils and nanomaterials. In this study, a targeted nanodrug delivery platform (Ac-PGP-tFNA, APT) was developed using tetrahedral framework nucleic acid (tFNA) along with a neutrophil hitchhiking mechanism to achieve precise delivery and anti-inflammatory effects. The tFNA structure, known for its excellent drug-loading capacity and cellular uptake efficiency, was used to carry a therapeutic agent─baicalin.

View Article and Find Full Text PDF

Plant-derived exosome-like nanoparticles in tissue repair and regeneration.

J Mater Chem B

January 2025

College of Biomedical Engineering, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.

This article reviews plant-derived exosome-like nanoparticles (ELNs), and highlights their potential in regenerative medicine. Various extraction techniques, including ultracentrifugation and ultrafiltration, and their impact on ELN purity and yield were discussed. Characterization methods such as microscopy and particle analysis are found to play crucial roles in defining ELN properties.

View Article and Find Full Text PDF

Modular organization of enhancer network provides transcriptional robustness in mammalian development.

Nucleic Acids Res

January 2025

State Key Laboratory of Cellular Stress Biology, Xiang'an Hospital, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, No. 4221, Xiang'an South Road, Xiamen, Fujian 361102, China.

Enhancer clusters, pivotal in mammalian development and diseases, can organize as enhancer networks to control cell identity and disease genes; however, the underlying mechanism remains largely unexplored. Here, we introduce eNet 2.0, a comprehensive tool for enhancer networks analysis during development and diseases based on single-cell chromatin accessibility data.

View Article and Find Full Text PDF

This case report describes a surgical treatment combined with interventional therapy for a patient with refractory hemodialysis access combined with catheter-related right atrial thrombosis (CRAT). During surgery, an artificial graft was established from the left brachiocephalic vein to the right atrium and the right atrial thrombus was removed. After the operation, the tunneled cuffed catheter (TCC) was replaced with digital subtraction angiography (DSA).

View Article and Find Full Text PDF

Background: Morphine, a mu-opioid receptor (MOR) agonist commonly utilized in clinical settings alongside chemotherapy to manage chronic pain in cancer patients, has exhibited contradictory effects on cancer, displaying specificity toward certain cancer types and doses.

Objective: The aim of this study was to conduct a systematic assessment and comparison of the impacts of morphine on three distinct cancer models in a preclinical setting.

Methods: Viability and apoptosis assays were conducted on a panel of cancer cell lines following treatment with morphine, chemotherapy drugs alone, or their combination.

View Article and Find Full Text PDF

The occurrence of off-flavor in osmanthus absolutes has emerged as a significant concern that could hinder its broad market acceptance and associated economic development. In this study, key off-flavor molecules in industrial osmanthus absolute were identified through sensomics and chemometric approaches. A group of 10 off-flavor (OF) samples, eliciting smoky/phenolic, sweaty/sour, and spicy odors, were compared with 10 pleasant aroma (PA) samples through various analyses, including overall aroma assessment, comprehensive chemical profiling, aroma extract dilution analysis (AEDA), and orthogonal partial least-squares-discriminant analysis (OPLS-DA).

View Article and Find Full Text PDF

Influence of gut bacteria on type 2 diabetes: Mechanisms and therapeutic strategy.

World J Diabetes

January 2025

College of Materials and Chemical Engineering, Southwest Forestry University, Kunming 650224, Yunnan Province, China.

The onset and progression of type 2 diabetes mellitus (T2DM) are strongly associated with imbalances in gut bacteria, making the gut microbiome a new potential therapeutic focus. This commentary examines the recent publication in . The article explores the association between T2DM and gut microbiota, with a focus on the pathophysiological changes related to dysbiosis.

View Article and Find Full Text PDF

A new species of Gray, 1827 (Squamata, Gekkonidae) from Yunnan Nangunhe National Nature Reserve, China.

Zookeys

January 2025

Kunming Natural History Museum of Zoology, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.

A new forest-dwelling species of the group is described from southwestern Yunnan Province, China. Phylogenetically, it was recovered as the sister species of , with a genetic distance of 9.2% in the ND2 gene.

View Article and Find Full Text PDF

Background: The relationship between autoimmune gastritis (AIG) and gastric polyps (GPs) is not well understood.

Aim: To explore the clinical characteristics and risk factors of AIG with GPs in patients.

Methods: This double center retrospective study included 530 patients diagnosed with AIG from July 2019 to July 2023.

View Article and Find Full Text PDF

Background: Transforming growth factor-β (TGF-β) superfamily plays an important role in tumor progression and metastasis. Activin A receptor type 1C (ACVR1C) is a TGF-β type I receptor that is involved in tumorigenesis through binding to different ligands.

Aim: To evaluate the correlation between single nucleotide polymorphisms (SNPs) of ACVR1C and susceptibility to esophageal squamous cell carcinoma (ESCC) in Chinese Han population.

View Article and Find Full Text PDF

Protective Effect of Rosmarinic Acid on Endotoxin-Induced Neuronal Damage Through Modulating GRP78/PERK/MANF Pathway.

Drug Des Devel Ther

January 2025

Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, 610041, People's Republic of China.

Objective: Neuronal damage is criminal to cognitive dysfunction, closely related to endoplasmic reticulum stress (ERS). However, due to the pathogenesis of endotoxin-induced long-term cognitive dysfunction is not fully clarified, there is still a lack of effective treatment. This study was conducted to explore the protective effects and mechanism of rosmarinic acid (RA) against ERS in endotoxin-induced cognitive dysfunction in mice and neuronal injury in cells.

View Article and Find Full Text PDF

Macrophage-based pathogenesis and theranostics of vulnerable plaques.

Theranostics

January 2025

Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China.

Vulnerable plaques, which are high-risk features of atherosclerosis, constitute critical elements in the disease's progression due to their formation and rupture. Macrophages and macrophage-derived foam cells are pivotal in inducing vulnerability within atherosclerotic plaques. Thus, understanding macrophage contributions to vulnerable plaques is essential for advancing the comprehension of atherosclerosis and devising novel therapeutic and diagnostic strategies.

View Article and Find Full Text PDF

Cardiomyocyte S1PR1 promotes cardiac regeneration via AKT/mTORC1 signaling pathway.

Theranostics

January 2025

State Key Laboratory of Cardiovascular Diseases and Medical Innovation Center, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China.

Lower vertebrates and some neonatal mammals are known to possess the ability to regenerate cardiomyocyte and fully recover after heart injuries within a limited period. Understanding the molecular mechanisms of heart regeneration and exploring new ways to enhance cardiac regeneration hold significant promise for therapeutic intervention of heart failure. Sphingosine 1-phospahte receptor 1 (S1PR1) is highly expressed in cardiomyocytes and plays a crucial role in heart development and pathological cardiac remodeling.

View Article and Find Full Text PDF

Background: Mecapegfilgrastim, a long-acting granulocyte colony-stimulating factor, is approved in China for neutropenia prevention. However, data on its safety and efficacy in patients with head and neck cancer remain limited. This study aimed to evaluate the safety and efficacy of mecapegfilgrastim in preventing neutropenia among these patients undergoing chemotherapy, particularly those receiving chemoradiotherapy or chemoimmunotherapy.

View Article and Find Full Text PDF

Objective: Our research has pinpointed the gut microbiome's role in the progression of various pathological types of non-small cell lung cancer (NSCLC). Nonetheless, the characteristics of the gut microbiome and its metabolites across different clinical stages of NSCLC are yet to be fully understood. The current study seeks to explore the distinctive gut flora and metabolite profiles of NSCLC patients across varying TNM stages.

View Article and Find Full Text PDF

Background: Breast cancer is a highly malignant disease worldwide, but there are currently no sufficient molecular biomarkers to predict patient prognosis and guide radiotherapy. The tumor microenvironment (TME) is an important factor affecting tumor biological function, and changes in its composition are equally relevant to tumor progression and prognosis during radiotherapy.

Methods: Here, we performed bioinformatic analyses using data obtained from The Cancer Genome Atlas (TCGA) and the Gene Expression Omnibus (GEO) databases to screen for molecular biomarkers related to the TME that may influence radiotherapy sensitivity.

View Article and Find Full Text PDF

Introduction: Compared to aortic dissection and isolated visceral artery dissection, multiple peripheral arterial dissections have not been formally reported to date. Currently, there is no well-established treatment for this condition, and large-scale studies with extensive sample data are lacking.

Case Presentation: A 56-year-old male, was provisionally diagnosed with " idiopathic multiple peripheral arterial dissections.

View Article and Find Full Text PDF

Urogenital Manifestations in Mpox (Monkeypox) Infection: A Comprehensive Review of Epidemiology, Pathogenesis, and Therapeutic Approaches.

Infect Drug Resist

January 2025

Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, People's Republic of China.

Monkeypox (mpox), caused by mpox virus (MPXV) infection, reemerged in 2022 and still raises concerns globally. Abundant clinical data indicate that mpox is a sexually transmitted infection and that the urogenital system is the most frequently involved system in mpox, which deserves more attention. Penile lesions are the most common presentation, followed by urethritis.

View Article and Find Full Text PDF

Background: The global prevalence of lower urinary tract symptoms suggestive of benign prostate hyperplasia (LUTS/BPH) escalates, with obesity recognized as a major contributing factor. However, the association between the relative fat mass (RFM) and LUTS/BPH remains unexplored. This 7-year follow-up study aimed to investigate the cross-sectional and longitudinal relationships between RFM and LUTS/BPH.

View Article and Find Full Text PDF

Background: Colorectal cancer (CRC) is among the most prevalent malignancies globally, with a rising incidence observed in younger demographics. Despite surgical resection remaining the cornerstone of treatment, metastatic CRC poses significant therapeutic challenges. Immunotherapy, a mode of treatment that leverages the patient's immune system, presents a promising frontier in CRC management, particularly for late-stage cases with limited treatment options.

View Article and Find Full Text PDF

Neurobiological fingerprints of negative symptoms in schizophrenia identified by connectome-based modeling.

Psychiatry Clin Neurosci

January 2025

Department of Radiology, and Functional and Molecular Imaging key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, China.

Aim: As a central component of schizophrenia psychopathology, negative symptoms result in detrimental effects on long-term functional prognosis. However, the neurobiological mechanism underlying negative symptoms remains poorly understood, which limits the development of novel treatment interventions. This study aimed to identify the specific neural fingerprints of negative symptoms in schizophrenia.

View Article and Find Full Text PDF

Concentration-Bias-Free Discrimination of Single Nucleotide Variants Using Isothermal Nucleic Acid Amplification and Mismatch-Guided DNA Assembly.

Anal Chem

January 2025

Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, China.

Isothermal nucleic acid amplification techniques are promising alternatives to polymerase chain reaction (PCR) for amplifying and detecting nucleic acids under resource-limited conditions. While many isothermal amplification strategies, such as recombinase polymerase amplification (RPA), offer comparable sensitivity to PCR, they often lack the specificity and robustness for discriminating single nucleotide variants (SNVs), mainly due to the uncontrolled production of massive amplicons. Herein, we introduce a mismatch-guided DNA assembly (MGDA) approach capable of discriminating SNVs in the presence of high concentrations of wild-type (WT) interferences.

View Article and Find Full Text PDF

Background: Glioblastoma multiforme (GBM) is a common and highly aggressive brain tumor with a poor prognosis. However, the prognostic value of ferroptosis-related genes (FRGs) and their classification remains insufficiently studied.

Objective: This study aims to explore the significance of ferroptosis classification and its risk model in GBM using multi-omics approaches and to evaluate its potential in prognostic assessment.

View Article and Find Full Text PDF

Assessment of Surgical Margin of Tongue Squamous Cell Carcinoma via Raman Mapping.

Oral Dis

January 2025

State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Head and Neck Oncology Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.

Objectives: This study introduces a novel classification approach that combines convolutional neural network (CNN) and Raman mapping to differentiate between tongue squamous cell carcinoma (TSCC) and non-tumorous tissue, as well as to identify different histological grades of TSCC.

Materials And Methods: In this study, 240 Raman mappings data from 30 tissue samples were collected from 15 patients who had undergone surgical resection for TSCC. A total of 18,000 sub-mappings extracted from Raman mappings were then used to train and test a CNN model, which extracted feature representations that were subsequently processed through a fully connected network to perform classification tasks based on the Raman mapping data.

View Article and Find Full Text PDF