Tissue Transglutaminase IgA LIS Code: tTG IgA

Understanding Tissue Transglutaminase (tTG) IgA

Tissue transglutaminase (tTG) IgA refers to the presence of immunoglobulin A (IgA) antibodies that target tissue transglutaminase, an enzyme found in various tissues throughout the body, including the lining of the small intestine. This antibody plays a crucial role in diagnosing autoimmune conditions, particularly celiac disease.

Role of tTG IgA in Celiac Disease Diagnosis

tTG IgA testing is one of the most sensitive and specific tests used to detect celiac disease—an autoimmune condition affecting genetically predisposed individuals who react adversely to gluten. Gluten is a protein commonly found in wheat, rye, and barley. In individuals with celiac disease, ingestion of gluten triggers the production of tTG IgA antibodies, which mistakenly attack the lining of the small intestine.

Symptoms and Intestinal Damage

The immune response causes inflammation and damage to the intestinal villi, leading to poor absorption of nutrients. This can result in a variety of gastrointestinal symptoms such as bloating, abdominal pain, diarrhoea, and constipation. Non-gastrointestinal symptoms may include fatigue, skin rashes, and nutritional deficiencies. If left undiagnosed, it can contribute to long-term complications such as anaemia and osteoporosis.

Additional Testing for Accurate Diagnosis

In Slough and surrounding areas, accurate diagnosis of celiac disease often involves a combination of serological tests. Alongside tTG IgA, endomysial IgA and gliadin IgA antibody tests may also be recommended. These tests help confirm the autoimmune response and assess the severity of the condition.

Monitoring Treatment and Gluten-Free Diet Response

For individuals following a gluten-free diet after a celiac diagnosis, tTG IgA levels are regularly monitored to assess treatment response. A decline in antibody levels indicates effective dietary adherence and intestinal healing.

Private Celiac Disease Testing in Slough

If you’re experiencing symptoms related to gluten intolerance or wish to get tested for celiac disease in Slough, private blood testing services are available. Testing for tTG IgA and related markers can help provide clarity and ensure early intervention, dietary adjustments, and symptom relief for individuals living in Slough and neighbouring areas like Langley, Maidenhead, Windsor, and Burnham.