Used in research settings to detect and quantify thyroid-stimulating immunoglobulins (TSI) in human serum. These antibodies are associated with Graves’ disease, an autoimmune disorder causing hyperthyroidism. The kit enables researchers and clinicians to assess autoimmune thyroid activity, monitor disease progression, and evaluate treatment efficacy. It is particularly valuable in diagnosing and differentiating Graves’ disease from other forms of thyroid dysfunction. Widely applied in endocrinology research, clinical laboratories, and drug development studies focused on autoimmune thyroid conditions.