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Overcoming β-Cell Dysfunction in Type 2 Diabetes Mellitus: CD36 Inhibition and Antioxidant System.
Diabetes Metab J
January 2025
Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea.
Type 2 diabetes mellitus (T2DM) is marked by chronic hyperglycemia, gradually worsening β-cell failure, and insulin resistance. Glucotoxicity and oxidative stress cause β-cell failure by increasing reactive oxygen species (ROS) production, impairing insulin secretion, and disrupting transcription factors such as pancreatic and duodenal homeobox 1 (PDX-1) and musculoaponeurotic fibrosarcoma oncogene family A (MafA). Cluster determinant 36 (CD36), an essential glycoprotein responsible for fatty acid uptake, exacerbates oxidative stress and induces the apoptosis of β-cells under hyperglycemic conditions through pathways involving ceramide, thioredoxin-interacting protein (TXNIP), and Rac1-nicotinamide adenine dinucleotide phosphate oxidase (NOX)-mediated redoxosome formation.
View Article and Find Full Text PDFMetformin as an immunomodulatory agent in enhancing head and neck squamous cell carcinoma therapies.
Biochim Biophys Acta Rev Cancer
January 2025
Department of Dental Materials, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, No. 117 Nanjing North Street, Heping District, Shenyang 110002, Liaoning, China. Electronic address:
Head and neck squamous cell carcinoma (HNSCC) remains a significant clinical challenge due to its aggressive behavior and poor prognosis, making the development of novel therapeutics with enhanced efficacy and minimal side effects critical. Metformin, a widely used antidiabetic agent, has recently emerged as a potential adjunctive therapy for HNSCC, exhibiting both direct anti-tumor and immunomodulatory effects. This review comprehensively explores the multifaceted role of metformin in shaping the tumor immune microenvironment within HNSCC.
View Article and Find Full Text PDFMetformin inhibits EV-A71 and CVA16 infections by regulating TRIB3-SCARB2 axis and activating AMPK.
Antiviral Res
January 2025
CAMS Key Laboratory of Antiviral Drug Research, Beijing Key Laboratory of Technology and Application for Anti-Infective New Drugs Research and Development, NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China. Electronic address:
Our previous study had found that cellular pseudokinase tribbles 3 (TRIB3) facilitates the infection of enterovirus A71 (EV-A71) via upregulating the protein level of EV-A71 receptor scavenger receptor class B member 2 (SCARB2). In the present study, we used metformin, which had been reported to down-regulate TRIB3 expression, to verify the potential of TRIB3 as an antiviral target. Here, we found that metformin can indeed impede the replication of EV-A71 and Coxsackievirus A16 (CVA16) through inhibiting the transcription of TRIB3 to indirectly down-regulate SCARB2 protein levels to block viral infection.
View Article and Find Full Text PDFMetformin-induced mitophagy suppresses auditory hair cell apoptosis via AMPK pathway.
Brain Res Bull
January 2025
Department of Otolaryngology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China. Electronic address:
Hearing loss is a pervasive issue affecting numerous individuals, and its etiology and categorization are multifaceted. Among these, sensorineural hearing loss (SNHL) emerges as the most prevalent variant among these. The primary causative factor underlying SNHL resides in the depletion of auditory hair cells within the cochlea, yet the pursuit of efficacious therapeutic interventions remains an ongoing challenge.
View Article and Find Full Text PDFPrediabetes and atrial fibrillation risk stratification, phenotyping, and possible reversal to normoglycemia.
World J Diabetes
January 2025
Department of Internal Medicine, University of Tabuk, Tabuk 51941, Tabuk, Saudi Arabia.
Patients admitted with prediabetes and atrial fibrillation are at high risk for major adverse cardiac or cerebrovascular events independent of confounding variables. The shared pathophysiology between these three serious but common diseases and their association with atherosclerotic cardiovascular risk factors establish a vicious circle culminating in high atherogenicity. Because of that, it is of paramount importance to perform risk stratification of patients with prediabetes to define phenotypes that benefit from various interventions.
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