All of us are aware that there are 2 types of diabetes. Type 1 Diabetes which develops at young age and Type 2 Diabetes which develops after 40 years of age.
There is yet one more type called LADA which behaves like Type 2 Diabetes initially and as Type 1 later. LADA is Latent Autoimmune Diabetes in Adults. It is also called as Type 1.5 Diabetes or Double Diabetes.

LADA develops at adult age, usually after 30 years. It may initially appear to be non obese Type 2 DM. 20 % of patients diagnosed as having non obesity related Type 2 DM may actually have LADA. It may initially be controlled with diet and exercise. The patients are usually free from insulin treatment for the first 6 months after diagnosis. They may require it after 6 months and gradually become dependent on insulin. These patients often do not have family history of Type 2 DM. They have autoantibodies in their blood and have low C-peptide levels in the

We have special blood tests to diagnose LADA. Performing a GAD antibody test is the most common method of diagnosing LADA. Islet cell antibodies (ICA) are also common.

The reason why we want to know about LADA is because of its relevance to metabolic surgery. Lot of people get rid of diabetes after metabolic surgery.They will not be required to take medicines for the control of blood sugar levels after metabolic surgery.Although LADA patients may have early satisfactory results after metabolic surgery there is presently lack of enough data supporting its long term benefit.Thus, it is appropriate to differentiate between type 1 and 2 diabetes in the adult when bariatric surgery is being considered, particularly in patients whose BMI is below that of severe obesity.

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