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Cisplatin exposure dysregulates insulin secretion in male and female mice.
Diabetes
January 2025
Department of Biology & Institute of Biochemistry, Carleton University, Ottawa, ON, Canada.
Cancer survivors have an increased risk of developing Type 2 diabetes compared to the general population. Patients treated with cisplatin, a common chemotherapeutic agent, are more likely to develop metabolic syndrome and Type 2 diabetes than age- and sex-matched controls. Surprisingly, the impact of cisplatin on pancreatic islets has not been reported.
View Article and Find Full Text PDFThe role of B cells in the pathogenesis of type 1 diabetes.
Front Immunol
January 2025
Department of Immunology, School of Medicine, Yangtze University, Jingzhou, China.
Type 1 diabetes (T1D) is a metabolic disorder caused by a complete lack of insulin, primarily manifested by hyperglycemia. The mechanisms underlying the onset of T1D are complex, involving genetics, environment, and various unknown factors, leading to the infiltration of various immune components into the islets. Besides T cells, B cells are now considered important contributors to the pathogenesis of T1D, according to recent studies.
View Article and Find Full Text PDFSodium arsenite induces islets β-cells apoptosis and dysfunction via SET-Rac1-mediated cytoskeleton disturbance.
Ecotoxicol Environ Saf
January 2025
Department of Occupational and Environmental Health, School of Public Health, Dalian Medical University, No. 9 West Section Lvshun South Road, Dalian 116044, China; Global Health Research Center, Dalian Medical University, No. 9 West Section Lvshun South Road, Dalian 116044, China. Electronic address:
Sodium arsenite (NaAsO), the most common form of inorganic arsenic prevalent in the environment, has been closely linked to islet β-cell dysfunction, a critical pathological hallmark of type 2 diabetes (T2D). Even though apoptosis plays a pivotal role in arsenic-induced islet β-cell dysfunction, the explicit underlying mechanisms remain elusive. Here, we have identified that the SET-Rac1 signaling pathway is instrumental in the apoptosis and dysfunction of islet β-cells induced by NaAsO.
View Article and Find Full Text PDFBETA CELL DYSFUNCTION OCCURS INDEPENDENTLY OF INSULITIS IN TYPE 1 DIABETES PATHOGENESIS.
bioRxiv
December 2024
Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL, United States.
During type 1 diabetes (T1D) progression, beta cells become dysfunctional and exhibit reduced first-phase insulin release. While this period of beta cell dysfunction is well established, its cause and underlying mechanism remain unknown. To address this knowledge gap, live human pancreas tissue slices were prepared from autoantibody-negative organ donors without diabetes (ND), donors positive for one or more islet autoantibodies (AAb+), and donors with T1D within 0-4 years of diagnosis (T1D+).
View Article and Find Full Text PDFAssessment of photoreceptor recovery and visual function utilizing adaptive optics and microperimetry in patients with surgically closed macular holes.
Photodiagnosis Photodyn Ther
December 2024
Department of Ophthalmology, Tianjin Medical University General Hospital, Tianjin, China, Ministry of Education International Joint Laboratory of Ocular Diseases, Tianjin, China, Tianjin Key Laboratory of Ocular Trauma, Tianjin, China, Tianjin Institute of Eye Health and Eye Diseases, China-UK "Belt and Road" Ophthalmology, Tianjin, PR China. Electronic address:
Background: This study investigated the association between photoreceptor structural restoration and visual function outcomes in patients undergoing surgery for closed macular holes (MHs). Using adaptive optics scanning laser ophthalmoscopy (AOSLO) and microperimetry, we aimed to provide a more detailed understanding of photoreceptor recovery and visual improvement in closed MHs.
Methods: We conducted a retrospective observational study of 31 eyes of 28 patients who underwent vitrectomy with internal limiting membrane (ILM) peeling to treat idiopathic MHs.
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