Type 1 Diabetes and Other Autoimmune Diseases-Epidemiology, Pathophysiology and Screening

Area of Science:

• Endocrinology
• Immunology
• Genetics

Background:

• Type 1 diabetes (T1D) frequently co-occurs with other autoimmune diseases (AID), a phenomenon known as polyautoimmunity.
• Understanding the interplay between T1D and AID is critical for both clinical practice and scientific research.

Purpose of the Study:

• To review the epidemiological, pathophysiological, and practical aspects of polyautoimmunity, focusing on T1D.
• To provide insights relevant to clinical management and early detection strategies.

Main Methods:

• A comprehensive literature review was performed using PubMed.
• The search focused on recent peer-reviewed articles (March-May 2025) concerning T1D and associated AID.

Main Results:

• Individuals with T1D show a significantly higher prevalence of additional AID.
• Genetic, environmental, and epigenetic factors contribute to the development of autoimmunity.
• Coexistence of T1D and AID complicates management, requiring tailored therapies and monitoring.
• Early detection through autoantibody testing improves long-term outcomes.

Conclusions:

• Screening for T1D-associated autoantibodies in individuals with a history of AID (and vice versa) should be integrated into clinical practice.
• This approach facilitates early diagnosis and management of coexisting autoimmune conditions.