Parkinson’s may begin decades earlier — and your immune system might know first

For people with autoimmune disease, T cell reactivity is a big problem. Haywire T cell responses lead to autoimmune diseases such as type 1 diabetes, rheumatoid arthritis, and inflammatory bowel disease.

In recent years, scientists at La Jolla Institute for Immunology (LJI) have discovered that T cells may also contribute to the development of Parkinson’s…