122,259 results match your criteria: "Guangzhou Medical University; zhengyx@gzhmu.edu.cn.[Affiliation]"

Input-output specific orchestration of aversive valence in lateral habenula during stress dynamics.

J Zhejiang Univ Sci B

April 2024

Department of Neurology and International Institutes of Medicine, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, China.

Stress has been considered as a major risk factor for depressive disorders, triggering depression onset via inducing persistent dysfunctions in specialized brain regions and neural circuits. Among various regions across the brain, the lateral habenula (LHb) serves as a critical hub for processing aversive information during the dynamic process of stress accumulation, thus having been implicated in the pathogenesis of depression. LHb neurons integrate aversive valence conveyed by distinct upstream inputs, many of which selectively innervate the medial part (LHbM) or lateral part (LHbL) of LHb.

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[Analysis of Genes Related to Platelet Activation in Essential Thrombocythemia Based on Transcriptomics].

Zhongguo Shi Yan Xue Ye Xue Za Zhi

December 2024

Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China.

Objective: To analyze the genes related to platelet activation in essential thrombocythemia (ET) based on transcriptome sequencing technology (RNA-seq), and to explore the potential targets related to ET thrombosis.

Methods: Blood samples from ET patients and healthy individuals were collected for RNA-seq, and differentially expressed lncRNAs, miRNAs, and mRNAs were selected to construct a lncRNA-miRNA-mRNA regulatory network. Differential mRNAs in the regulatory network were enriched and analyzed using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG).

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Objective: To investigate the effect of genetic polymorphism of (rs1801133) on methotrexate (MTX) related toxicity in pediatric mature B-cell lymphoma patients.

Methods: Fifty-eight intermediate and high risk patients under 18 years of age with mature B-cell lymphoma who received 5 g/m MTX (24 h intravenous infusion) in Sun Yat-sen University Cancer Center from August 2014 to December 2021 were included, and their toxicity of high-dose MTX (HD-MTX) were monitored and analyzed.

Results: Among the 58 pediatric patients, the number of CC, CT, and TT genotypes for was 33, 19 and 6, respectively.

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Multi-omics approach reveals TGF-β signaling-driven senescence in periodontium stem cells.

J Adv Res

December 2024

State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China. Electronic address:

Introduction: The periodontal ligament (PDL), a dynamic connective tissue that anchors teeth to the alveolar bone, enables tooth retention and facilitates continuous turnover. The integrity of the periodontium is maintained by periodontal ligament stem cells (PDLSCs), whose dysfunction and senescence with age can disrupt tissue homeostasis, hinder injury repair, and lead to tooth loss, ultimately impacting overall health. Transforming growth factor-β1 (TGF-β1) is known for its regenerative properties and as a functional paracrine factor in stem cell therapy, but its precise role in modulating PDLSC activity remains controversial and poorly understood.

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Anatomizing Causal Relationships Between Gut Microbiota, Plasma Metabolites, and Epilepsy: A Mendelian Randomization Study.

Neurochem Int

December 2024

The National Key Clinic Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China. Electronic address:

Article Synopsis
  • Epilepsy is significantly influenced by gut microbiota (GM) and plasma metabolites, but detailed causal relationships have not been fully explored.
  • Mendelian randomization analysis identified 19 gut microbial taxa and 21 plasma metabolites linked to epilepsy, with the Omnitrophota phylum showing the strongest association.
  • The study concluded that the Fournierella massiliensis species and a specific lipid ratio are causally related to epilepsy, highlighting the mediating role of the lipid ratio in this condition.
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Design, synthesis, and biological evaluation of novel 2'-deoxy-2'-spirooxetane-7-deazapurine nucleoside analogs as anti-SARS-CoV-2 agents.

Antiviral Res

December 2024

State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Science, Guangzhou, 510530, China; Guangzhou Henovcom Bioscience Inc, 11 Kaiyuan Rd, Guangzhou, Guangdong, China. Electronic address:

The COVID-19 pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has caused an unprecedented global public health crisis and continues to pose grave threats to human health. The efficacy of current vaccines and therapeutics is likely limited for future emerging strains due to the highly mutative nature of the virus, underscoring an urgent need for the development of new, potent antiviral agents. In this study, we report the design and synthesis of a series of novel 2'-deoxy-2'-spirooxetane-7-deazapurine nucleoside analogs as potential inhibitors of SARS-CoV-2 replication.

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Hepatocellular carcinoma (HCC) is a common cancer characterized by robustly proliferative and metastatic capabilities. Bromodomain-containing proteins are critical to the development of diverse diseases via regulating cell proliferation, differentiation, and death. However, the role of Bromodomain-containing protein 3 (BRD3) in HCC is elusive.

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Heterotopic Cornual and Tubal Ipsilateral Pregnancies Following Dual Embryo Transfer.

J Minim Invasive Gynecol

December 2024

Department of Gynecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China; State Key Laboratory of Traditional Chinese Medicine Syndrome,Guangzhou, China. Electronic address:

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Nanoparticle-mediated efficient up-regulation of GSDMD-N to induce pyroptosis and enhance NK cell-based cancer immunotherapy.

Acta Biomater

December 2024

Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, P. R. China; Guangzhou Key Laboratory of Medical Nanomaterials, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, P. R. China; Nanhai Translational Innovation Center of Precision Immunology, Sun Yat-Sen Memorial Hospital, Foshan 528200, P. R. China. Electronic address:

Natural killer (NK) cell-based immunotherapy has emerged as a safe and effective therapeutic modality for cancer treatment. However, therapeutic benefits can be only seen in hematological tumors (e.g.

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A self-forming bone membrane generated by periosteum-derived stem cell spheroids enhances the repair of bone defects.

Acta Biomater

December 2024

Department of Orthopedics, Shenzhen Hospital, Southern Medical University, Shenzhen 518000, PR China; The Third School of Clinical Medicine, Southern Medical University, Guangzhou 510000, PR China. Electronic address:

The periosteum, a highly specialized thin tissue, is instrumental in contributing to as much as 70% of early bone formation. Recognizing the periosteum's vital physiological roles, the fabrication of a biomimetic periosteum has risen as an auspicious strategy for addressing extensive bone defects. In the study, we obtained such biomimetic periosteum by utilizing periosteum-derived stem cells (PDSCs) spheroids.

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A highly sensitive and selective SERS sensors based on Au@PATP@Ag@ZIF-8 for the detection of phosphate in water.

Talanta

December 2024

MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, School of Optoelectronic Science and Engineering, South China Normal University, Guangzhou, 510631, China. Electronic address:

Rapid and sensitive detection of phosphate is of great significance for ensuring water safety and preventing eutrophication. In this study, we prepared Au@PATP@Ag NRs core-shell structures using 4-aminothiophenol (PATP) as an internal standard signal molecule to enhance the stability of the SERS signal. Based on the protective effect of ZIF-8 on the internal Au@PATP@Ag NRs and the phosphate-induced decomposition of ZIF-8, a phosphate SERS sensor (Au@PATP@Ag@ZIF-8) with high sensitivity, selectivity and stability was designed.

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Background: Clinical guidelines recommend nonpharmacological treatment (nPHT) as the primary intervention for subthreshold depression management. Counseling (CS) and electroacupuncture (EA) are two promising nonpharmacological approaches for improving both depression and sleep disturbance. However, the intrinsic neuroimaging mechanisms underlying the antidepressant effects of these nPHTs are not yet fully understood.

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Diagnostic value of SAT-TB in stool and urine samples for intestinal and urinary tuberculosis.

Diagn Microbiol Infect Dis

December 2024

State Key Laboratory of Respiratory Disease, Guangzhou Key Laboratory of Tuberculosis Research, Department of Tuberculosis, Guangzhou Chest Hospital, Institute of Tuberculosis, Guangzhou Medical University, Guangdong 510095, PR China. Electronic address:

Background: The simultaneous amplification/testing for tuberculosis (SAT-TB) targets specific 16s rRNA for detecting Mycobacterium tuberculosis in real-time.

Objective: To evaluate SAT-TB's performance in detecting intestinal and urinary TB using stool and urine samples.

Methods: Stool (94) and urine samples (69) (From 2021 to 2022), were collected from pulmonary combined with suspected intestinal or urinary tuberculosis.

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Corrigendum to "Drug content on anticancer efficacy of self-assembling ketal-linked dextran-paclitaxel conjugates" [Journal of Controlled Release 359 (2023) 175-187].

J Control Release

December 2024

Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China. Electronic address:

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Genome mining of nonenzymatic ortho-quinone methide-based pseudonatural products from ascidian-derived fungus Diaporthe sp.SYSU-MS4722.

Bioorg Chem

December 2024

School of Marine Sciences, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519000, China. Electronic address:

Ortho-quinone methides (o-QMs), generated by oxidative dehydration of clavatol, are highly reactive intermediates in biosynthesis that give rise to a variety of clavatol-containing pseudonatural products (PNPs) in fungi through intra- and intermolecular nonenzymatic cyclization/addition reaction, and some compounds have significant biological activities. Here we report our genome mining efforts on a cryptic clavatol biosynthetic gene cluster (BGC) from an ascidian-derived fungus Diaporthe sp. SYSU-MS4722.

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Natural products as Nrf2 modulators for ferroptosis inhibition in renal disease therapy: Recent progress and future prospects.

Phytomedicine

December 2024

State Key Laboratory of Quality Research in Chinese Medicine, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau 999078, China; State Key Laboratory of Traditional Chinese Medicine Syndrome, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Chinese Medicine Guangdong Laboratory (Hengqin Laboratory), Guangdong-Macao In-Depth Cooperation Zone in Hengqin, 519000, China. Electronic address:

Background: The transcription factor Nrf2 (nuclear factor erythroid 2-related factor 2, NFE2L2) is a pivotal regulator of redox balance, metabolism, protein homeostasis and inflammation. Nrf2 is critically involved in both ferroptosis and renal diseases, and may serve as a significant target for many natural products in the treatment of renal diseases. However, a comprehensive overview on this topic is still lacking.

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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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After RFA treatment in patients with liver cancer, the expression of /xCT and the proportion of DCs in the TME were significantly increased. /xCT is a poor prognostic marker for liver cancer and is mainly expressed in DCs in the TME. Targeting xCT in DCs combined with RFA significantly enhances anti-tumor immunity, suppressing tumor growth and offering a promising strategy for improved therapeutic outcomes in liver cancer.

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Immune dysregulation as a driver of bronchiolitis obliterans.

Front Immunol

January 2025

Department of Respiration, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, Guangdong, China.

Bronchiolitis obliterans (BO) is a disease characterized by airway obstruction and fibrosis that can occur in all age groups. Bronchiolitis obliterans syndrome (BOS) is a clinical manifestation of BO in patients who have undergone lung transplantation or hematopoietic stem cell transplantation. Persistent inflammation and fibrosis of small airways make the disease irreversible, eventually leading to lung failure.

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Background: Patients with rheumatic diseases who receive long-term treatment with steroids, immunosuppressants, or biologics are more susceptible to infection with pathogens than the general population. In order to explore the differences in clinical features and prognosis of Corona Virus Disease 2019 (COVID-19) infection between patients with rheumatic diseases and the general population (family members), a retrospective investigative study was used to analyze the differences between the two populations.

Methods: The study was conducted in 13 Grade A Tertiary hospitals in China to investigate the clinical symptoms and prognostic factors of patients with rheumatic diseases who were infected with COVID-19 for the first time and their families.

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Management Status of Myocarditis-Related Sudden Cardiac Death.

Rev Cardiovasc Med

December 2024

Department of Emergency, The Eighth Affiliated Hospital of Sun Yat-sen University, 518033 Shenzhen, Guangdong, China.

Myocarditis, a life-threatening disease that can result in cardiac arrest and sudden cardiac death, has garnered significant attention in recent years. This review provides a comprehensive overview of the management of myocarditis-related sudden cardiac death, encompassing its pathology, diagnostic methods, therapeutic strategies, preventive measures, prognostic factors, and risk stratification. Additionally, the review highlights current challenges and future directions in this field.

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Advancements in cancer therapy have increasingly focused on leveraging the synergistic effects of combining immunotherapy with other treatment modalities, facilitated by the use of innovative nanoplatforms. These strategies aim to augment the efficacy of standalone treatments while addressing their inherent limitations. Nanoplatforms enable precise delivery and controlled release of therapeutic agents, which enhances treatment specificity and reduces systemic toxicity.

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Background: The use of visceral obesity as an indicator for predicting female infertility risk has not been well established. The body roundness index (BRI) is a novel, non-invasive indicator of visceral fat; however, previous reports have not addressed the relationship between the BRI and female infertility. This study sought to fill this research gap by investigating the association between the BRI and the risk of female infertility.

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Shengmai San (SMS) is a traditional Chinese medicine formula used for supplementing and and can mitigate symptoms related to malignant arrhythmia and heart failure. This systematic review aimed at exploring the effectiveness and safety of SMS for viral myocarditis (VMC). Eight databases from their inception to June 2023 were searched to identified randomized controlled trials (RCTs) focusing on SMS for VMC.

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Thymidine phosphorylase (TYMP) promotes platelet activation and thrombosis while suppressing vascular smooth muscle cell (VSMC) proliferation. Both processes are central to the development and progression of abdominal aortic aneurysms (AAAs). We hypothesize that TYMP plays a role in AAA development.

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