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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Lowered TSH Levels After Taking Thyroxine, Have Positive AMA And ATG. What Does That Indicate?

Pls note I just got my AMA report and it is 117 and the ATG is 328...what does this mean...my TSH was 9.7 in may but now after taking a 50 mg tablet of thyroxine it has come down to 2.57...but both the AMA and ATG are positive so what does this mean ?? I am a female - age 50 yrs.my emial is :- YYYY@YYYY Thx Regds Ritu
Mon, 27 Aug 2012
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Diabetologist 's  Response
Hi Ritu,

Having AMA or ATG positivity just indicates an autoimmune reason for your hypothyroidism. Because of these antibodies you have got dyshormonogenesis of hypothyroidism. You do not need to worry about these tests much nor you need to reapeat them anytime again to see whether their values are high or low. Because you'll just lose money. Clinically it doesn't make any difference later. Only couple of things you have to keep in mind that your dose of replacement of thyroid hormone might keep going up, so keep checking your thyroid every 3 months till your TSH is stabilized for more than 6 months. And if you have family members who have not tested their thyroid, ask them to get it done as antibody positivity and hence the thyroid disorders can run in families. Hope this helps. Do get back to me for any further queries.
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Lowered TSH Levels After Taking Thyroxine, Have Positive AMA And ATG. What Does That Indicate?

Hi Ritu, Having AMA or ATG positivity just indicates an autoimmune reason for your hypothyroidism. Because of these antibodies you have got dyshormonogenesis of hypothyroidism. You do not need to worry about these tests much nor you need to reapeat them anytime again to see whether their values are high or low. Because you ll just lose money. Clinically it doesn t make any difference later. Only couple of things you have to keep in mind that your dose of replacement of thyroid hormone might keep going up, so keep checking your thyroid every 3 months till your TSH is stabilized for more than 6 months. And if you have family members who have not tested their thyroid, ask them to get it done as antibody positivity and hence the thyroid disorders can run in families. Hope this helps. Do get back to me for any further queries.