Type 1 diabetes mellitus: retrospect and prospect

Abstract

Background Type 1 diabetes (T1D) is an autoimmune disease leading to destruction of insulin-producing pancreatic beta cells. Both genetic and environmental factors contribute to pathogenesis. The incidence of T1D is increasing worldwide, with significant geographic and ethnic variations. Patients present with symptoms of hyperglycemia and diabetes complications. Main body In T1D, autoreactive T cells and autoantibodies destroy beta cells, causing insulin deficiency. Exogenous insulin therapy is essential but cannot replicate normal physiology. Management requires intensive lifestyle education on diet, exercise, glucose monitoring and avoiding complications, in addition to insulin. Novel therapies like immunotherapy, cell transplantation, artificial pancreas devices and AI algorithms aim to improve care. Strategies for reversing T1D involve combination immunotherapies to block autoimmunity and regenerate beta cells via stem cells or xenotransplantation. Conclusion While type 1 diabetes remains challenging, ongoing research provides hope. Elucidating individualized disease mechanisms and translating findings into precision prevention and treatment approaches are critical to improving long-term outcomes. Innovative and multi-targeted therapies may fundamentally change the trajectory of T1D.