25,149 results match your criteria: "GuangZhou Medical University[Affiliation]"

Exploring the mechanism of Radix Bupleuri in the treatment of depression combined with SARS-CoV-2 infection through bioinformatics, network pharmacology, molecular docking, and molecular dynamic simulation.

Metab Brain Dis

January 2025

State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510180, China.

Background: Radix Bupleuri is commonly used in treating depression and acute respiratory diseases such as SARS-CoV-2 infection in China. However, its underlying mechanism in treating major depressive disorder combined with SARS-CoV-2 infection remains unclear.

Aim: This study aims to elucidate the pharmacological mechanisms of Radix Bupleuri in treating major depressive disorder combined with SARS-CoV-2 infection, employing bioinformatics, network pharmacology, molecular docking, and dynamic simulation techniques.

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Adenosine, a critical molecule regulating cellular function both inside and outside cells, is controlled by two human adenosine deaminases: ADA1 and ADA2. While ADA1 primarily resides in the cytoplasm, ADA2 can be transported to lysosomes within cells or secreted outside the cell. Patients with ADA2 deficiency (DADA2) often suffer from systemic vasculitis due to elevated levels of TNF-α in their blood.

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Infectious diabetic wounds pose an arduous threat to contemporary healthcare. The combination of refractory biofilms, persistent inflammation, and retarded angiogenesis can procure non-unions and life-threatening complications, calling for advanced therapeutics potent to orchestrate anti-infective effectiveness, benign biocompatibility, pro-reparative immunomodulation, and angiogenic regeneration. Herein, embracing the emergent "living bacterial therapy" paradigm, a designer probiotic-in-hydrogel wound dressing platform is demonstrated.

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Background: Barrett's esophagus (BE) is a precancerous condition often associated with esophageal adenocarcinoma, influenced by both genetic and environmental factors. However, there is controversy regarding the causal relationship between cerebral cortical structures and BE, with recent studies suggesting a potential neurobiological component to its multifactorial etiology. This study aims to clarify this relationship by utilizing Mendelian randomization (MR) analysis to investigate the potential causal effects of cortical structure variations on BE risk.

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Background: Tyrosine kinase inhibitors (TKIs) are the first-line therapy for patients with non-small cell lung cancer (NSCLC) with sensitized mutations in the epidermal growth factor receptor (). However, resistance to TKIs is a major clinical issue that affects the survival and prognosis of the patients, with the mechanisms underlying this resistance remaining elusive. Circular RNAs (circRNAs) are a class of single-stranded, covalently closed RNA molecules, which are generated from pre-messenger RNAs (mRNAs) through back splicing.

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Objectives: This study aimed to assess the feasibility of an online compassion training program for nursing students and preliminarily investigate its effects on mindfulness, self-compassion, and stress reduction.

Methods: This study employed a randomized controlled trial design. Second-year students from a nursing college in Guangzhou, China, were recruited as research participants in August 2023.

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Background: The benefits of spontaneous ventilation (SV)-video-assisted thoracoscopic surgery (VATS) in octogenarian patients with non-small-cell lung cancer (NSCLC) have rarely been reported. This retrospective study was conducted to evaluate the safety and feasibility of SV-VATS in octogenarian patients with NSCLC.

Methods: Patients with NSCLC aged >80 years who underwent SV-VATS or mechanical ventilation (MV)-VATS between 2017 and 2022 were included in this study.

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Objectives: The purpose of this study was to investigate the effect of intestinal dysbiosis on the bioavailability of voriconazole and to explore any underlying mechanisms.

Method: Sprague-Dawley rats were randomly divided into two groups: a normal control group and a ceftriaxone-associated dysbiotic group. The composition of the intestinal flora was examined using 16S rRNA sequencing analysis.

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A novel non-invasive murine model for rapidly testing drug activity via inhalation administration against .

Front Pharmacol

January 2025

State Key Laboratory of Respiratory Disease, Joint School of Life Sciences, Guangzhou Chest Hospital, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China.

The efficacy of many compounds against is often limited when administered via conventional oral or injection routes due to suboptimal pharmacokinetic characteristics. Inhalation-based delivery methods have been investigated to achieve high local therapeutic doses in the lungs. However, previous models, typically employing wild-type strains, were intricate, time-consuming, labor-intensive, and with poor reproducibility.

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Differentiating Tangerine Peels from Other through GC-MS, UPLC-Q-Exactive Orbitrap-MS, and HPLC-PDA.

ACS Omega

January 2025

The Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, China.

The nonvolatile and volatile compounds in the peels of 13 cultivars (4 mandarins, 5 tangerines, and 4 hybrids) and 5 (sweet oranges) cultivars were analyzed. Initially, 66 volatile compounds were detected using gas chromatography-mass spectrometry (GC-MS). Tangerines were distinguished from other citrus cultivars (mandarins, sweet oranges, hybrids) by having higher volatile oil extraction rates and higher relative contents of o-Cymene, α-Terpinene, d-α-Pinene, Terpinolene, γ-Terpinene, l-β-Pinene, and 3-Thujene.

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Background: Compliance to highly restrictive diets is critical for children with Methylmalonic Acidemia (MMA), and their caregivers play a prominent role in children's dietary treatment from early childhood through to adulthood. Despite lots of efforts by the multidisciplinary medical team to ensure the smooth implementation of dietary treatment, restricting dietary protein remains particularly challenging for children with MMA. This study aimed to assess dietary treatment compliance in children with MMA and evaluate the impact of WeChat-based parent education on compliance.

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Preeclampsia (PE) is a pregnancy complication characterized by high blood pressure and organ damage. This study investigates the differences in the gut microbiota between preterm neonates born to mothers with PE and those born to mothers without PE (PR), aiming to understand how maternal health conditions like PE influence neonatal gut microbiota. The early gut microbiota plays a crucial role in neonatal health, and disturbances in its development can have long-term consequences.

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Due to the limited ability to self-repair, the regeneration of bone critical-sized defects (CSD) is a significant challenge. Bone tissue engineering scaffolds are considered promising candidates for CSD repair, but low cell infiltration efficiency and a lack of nutrients greatly restrict bone regeneration abilities. Herein, we developed a dynamic culturing of large biomimetic bone scaffolds, PCL/GelMA@cells that combining 3D printed polycaprolactone (PCL) multi-channel cylinder with gelatin methacryloyl (GelMA) encapsulated with bone marrow mesenchymal stem cells (BMSCs) and rat aortic endothelial cells (RAECs).

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IgA class switching enhances neutralizing potency against SARS-CoV-2 by increased antibody hinge flexibility.

Antiviral Res

January 2025

School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-Sen University, Shenzhen, China; Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education; Shenzhen Key Laboratory of Pathogenic Microbes and Biosafety. Electronic address:

IgA antibodies are critical components of the mucosal immune barrier, providing essential first-line defense against viral infections. In this study, we investigated the impact of antibody class switching on neutralization efficacy by engineering recombinant antibodies of different isotypes (IgA1, IgG1) with identical variable regions from SARS-CoV-2 convalescent patients. A potent, broad-spectrum neutralizing monoclonal antibody CAV-C65 exhibited a ten-fold increase in neutralization potency upon switching from IgG1 to IgA1 monomer.

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Deciphering the mechanisms of long non-coding RNAs in ferroptosis: insights into its clinical significance in cancer progression and immunology.

Cell Death Discov

January 2025

Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China.

A new type of nonapoptotic, iron-dependent cell death induced by lipid peroxidation is known as ferroptosis. Numerous pathological processes, including inflammation and cancer, have been demonstrated to be influenced by changes in the ferroptosis-regulating network. Long non-coding RNAs (LncRNAs) are a group of functional RNA molecules that are not translated into proteins, which can regulate gene expression in various manners.

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piR-26441 inhibits mitochondrial oxidative phosphorylation and tumorigenesis in ovarian cancer through m6A modification by interacting with YTHDC1.

Cell Death Dis

January 2025

Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office; Guangzhou Key Laboratory of Targeted Therapy for Gynecologic Oncology; Guangdong Provincial Key Laboratory of Major Obstetric Diseases; Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology; Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine; The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.

Ovarian cancer (OC) is a heterogeneous cancer. In contrast to other tumor cells, which rely primarily on aerobic glycolysis (Warburg effect) as their energy source, oxidative phosphorylation (OXPHOS) is also one of its major metabolic modes. Piwi-interacting RNAs (piRNAs) play a regulatory function in various biological processes in tumor cells.

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CDK14 regulates the development and repair of lung.

Cell Death Discov

January 2025

Institutes of physical science and information technology, Anhui University, Hefei, Anhui, 230601, China.

Cyclin-dependent kinases (CDK) 14 regulates cell cycle, tumor expansion by influencing the downstream targets of the canonical Wnt signaling pathway. However, the function of CDK14 during organ development and regeneration has not been investigated in genetically-modified animals. Here, we found that genetic ablation of Cdk14 influenced pulmonary vascular endothelial cells and alveolar epithelial cells during mice embryonic development as well as repair of lung after bleomycin or lipopolysaccharide induced injury.

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Benzo[a]pyrene exposure and incident risks of digestive system cancers: Insights from nested case-control studies and adverse outcome pathway network analysis.

J Hazard Mater

January 2025

Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd, Wuhan, China. Electronic address:

Benzo[a]pyrene (B[a]P) is a recognized carcinogen for lung cancer, but its associations with digestive system cancers (DSCs) remain unclear and the common carcinogenic mechanisms are not fully understood. We conducted five nested case-control studies within the Dongfeng-Tongji cohort, including esophageal (EC, n = 58), gastric (GC, n = 103), colorectal (CRC, n = 220), hepatic (HC, n = 117), and pancreatic cancers (PC, n = 45). For each case, two sex and age ( ± 5 years) matched healthy controls were selected.

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Mechanistic insights into HNRNPA2B1: A comprehensive pan-cancer analysis and functional characterization in lung cancer.

Biochim Biophys Acta Mol Basis Dis

January 2025

The Key Laboratory of Advanced Interdisciplinary Studies, Institute for Chemical Carcinogenesis, School of Public Health, Guangzhou Medical University, 1 Xinzao Road, Panyu District, Guangzhou 511436, PR China. Electronic address:

Heterogeneous nuclear ribonucleoprotein A2B1 (HNRNPA2B1), a member of the A/B subfamily of hnRNPs, plays a critical role in tumorigenesis, yet its expression patterns, molecular mechanisms, and prognostic significance remain inadequately characterized. In this study, we performed a comprehensive pan-cancer analysis utilizing multiple public databases, revealing that HNRNPA2B1 is consistently overexpressed in most tumor types and correlates with poor prognosis across several malignancies. Pathway enrichment analysis highlighted its involvement in RNA alternative splicing, transport, and stability, processes that contribute to tumor progression.

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Advanced oxidation protein products induce apoptosis in thyroid follicular epithelial cells through oxidative stress in Hashimoto's thyroiditis.

Int Immunopharmacol

January 2025

Department of General Surgery & Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China. Electronic address:

Hashimoto's thyroiditis (HT) is a chronic autoimmune disorder primarily driven by T cell. The apoptosis of the follicular thyroid cells plays an important role in HT apart from the lymphocyte-mediated cytotoxicity. Advanced oxidation protein products (AOPPs), resulting from oxidative stress, are known to be involved in various inflammatory diseases.

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PMN-MDSCs are responsible for immune suppression in anti-PD-1 treated TAP1 defective melanoma.

Clin Transl Oncol

January 2025

Department of General Surgery, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, 510013, Guangdong, China.

Introduction: The transporter associated with antigen processing (TAP) is a key component of the classical HLA I antigen presentation pathway. Our previous studies have demonstrated that the downregulation of TAP1 contributes to tumor progression and is associated with an increased presence of myeloid-derived suppressor cells (MDSCs) in the tumor microenvironment. However, it remains unclear whether the elevation of MDSCs leads to immune cell exhaustion in tumors lacking TAP1.

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IL-35 modulates Tfh2 and Tfr cell balance to alleviate allergic rhinitis.

Inflamm Res

January 2025

Department of Otolaryngology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China.

Background: Allergic rhinitis (AR) represents a persistent inflammatory condition affecting the upper respiratory tract, characterized by abnormal initiation of the immunoglobulin E (IgE)-mediated cascade. Follicular helper T (Tfh) cells and regulatory T (Tfr) cells are pivotal in orchestrating the development of IgE production in AR patients. IL-35, an anti-inflammatory cytokine, secreted by various cellular subpopulations.

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Background: Serum vitamin D deficiency is intricately linked to metabolic disorders, however, evidence on its association with continuous metabolic risk in children and adolescents remains insufficient. This study aims to elucidate the relationship between serum vitamin D levels and continuous metabolic risk.

Methods: The cross-sectional analysis involved 4490 participants aged 6 ~ 18, and the longitudinal investigation included 1398 individuals aged 6 ~ 12 years.

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