You're welcome! Be sure the patient eats at least ten grams of gluten per day for a minimum of two weeks prior to repeating antibody testing.   Some people unconsciously reduce the amount of gluten in their diet because the feel unwell.  Three grams of gluten per day is sufficient to produce symptoms.  Only at ten grams or more is the immune system provoked to raise the antibody production high enough so that the antibodies leave the digestive tract and enter the blood stream where they can be measured.   Read the comments below the article...  

Thanks for your response and thoughts. Total IgA is normal. HLA DQ2/DQ8 came as heterozygous and the interpretation of the lab that the risk of coeliac disease is mild to moderate. Thyroid function test is normal. I agree that the best way is to repeat tTG antibodies in 6 months time as the result was not massively high.  

Welcome to the forum, @Wamedh Taj-Aldeen, How is the patient's thyroid?   You could check for thiamine deficiency which can cause the thyroid to either become hyper or hypo.  TTg IgA can be high in both hyperthyroidism and hypothyroidism.  tTg IgA can also be high if patient is taking medications to stimulate the thyroid as in hypothyroidism.   Thanks for visiting!  Keep us posted!

Welcome to the forum, @Rejoicephd, I found the Autoimmune Protocol diet (Dr. Sarah Ballantyne) extremely helpful in getting my health back.  The AIP diet is very strict, removing any possibly irritating foods and allowing time for the digestive tract to heal, then other foods are added back in with less risk of reaction.   Keep us posted on your progress!

Hello, @Cat M, welcome to the forum! I noticed you are low in ferritin and thiamine as well as other nutritional deficiencies already.  Deficiencies in iron and thiamine affect your body's ability to make antibodies.  Since you do have symptoms, nutritional deficiencies evidence of malabsorption, MTHFR and one celiac gene,  I'm suspecting you do have Celiac disease.   Can you consult a gastroenterologist?  Or ask your doctor to do so.   Gluten Sensitivity can be a precursor of Celiac disease in people with Celiac genes.  Since you've already got symptoms of Celiac disease and evidence malabsorption, an endoscopy with biopsies would be beneficial.   It's can be so frustrating getting a diagnosis because doctors are not familiar with Celiac disease.  Sending you encouragement! Keep us posted on your progress!