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March 12, 2005

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Question from Thornton, Colorado, USA:

My 15 year old son was diagnosed with type 1 three years ago. He is in the SEARCH Trial (Search for Diabetes in Youth) and had blood drawn in January. We have received the test results for the GAD Antibody Index, IAA Index and the IA2 Index. His test results are showing these levels as being high. His GAD is.332, IAA.422 and the IA2 is.038. The normal reference ranges, provided by the lab are: GAD 0-.085, IAA 0-.010 and IA2 0-.017. Are these test results something that we should be informing our doctors about? Should we be concerned?

Answer:

Why not share this with your diabetologist? They are islet cell antibody tests and only indicate that he has typical type 1 autoimmune diabetes. Any more specific questions would be reasonable for you to contact the study staff and direct the questions to them since they would have the most specific information for you.

SB