Description
Thyroglobulin antibodies (TgAb) are proteins produced by the immune system that attack thyroglobulin, a protein found in the thyroid gland. The thyroid uses thyroglobulin to produce hormones that control metabolism and growth.
TgAb levels can increase in people with thyroid-related autoimmune conditions, such as Hashimoto's thyroiditis or Graves' disease. TgAb levels can also be elevated in people with other autoimmune disorders, like rheumatoid arthritis, Celiac disease, and type 1 diabetes.
Symptoms of high thyroglobulin antibodies include:
- Anxiety or nervousness
- Trouble sleeping
- Chronic fatigue
- Sensitivity to heat or cold
- Forgetfulness
- Poor concentration
- Weight gain or weight loss
- Muscle weakness or tremors
Fasting not required.
