Exploring the Autoimmune Hypothesis of Type 1 Diabetes: Investigating the Potential Role of Peritoneal Membrane Defects in the Pancreatic Tail and Revisiting Alternative Theories of Disease Etiology

Type 1 Diabetes Mellitus (T1DM) has traditionally been understood through the lens of autoimmune destruction of pancreatic beta cells. However, emerging evidence suggests that defects in the peritoneal membrane, particularly in the pancreatic tail, may play a significant role in the disease's pathogenesis. This study explores the "Peritoneal Protection Hypothesis," which posits that the integrity of the peritoneal membrane is crucial in maintaining pancreatic beta cell function and preventing autoimmune-mediated destruction. We review the biochemical and immunological mechanisms through which peritoneal membrane defects could contribute to beta-cell dysfunction and T1DM onset. By integrating novel insights into peritoneal membrane biology with current autoimmune theories, we provide a comprehensive framework that may redefine the understanding of T1DM etiology and highlight potential therapeutic avenues.