An ANA blood test is used to find antinuclear antibodies that can be linked to autoimmune diseases. The test shows a positive result if fluorescent cells are observed under a microscope. A positive ...

New research suggests breathing polluted air may trigger early immune changes, long before autoimmune disease is diagnosed.

A study links long-term PM2.5 air pollution to higher levels of anti-nuclear antibodies, early warning signs of autoimmune ...