Surgical or Medical Treatment

Inclusion Criteria for the medical or surgical type 2 diabetes groups * Age 13-19.9 years of age at time of signing the consent * Type 2 diabetes by the American Diabetes Association criteria * Negative diabetes-associated antibodies Exclusion Criteria for the medical or surgical type 2 diabetes groups Known type 1 diabetes, maturity onset diabetes of the young (MODY), or secondary diabetes * Any chronic oral steroids use within 60 days of enrollment * Current pancreatotoxic drugs * Chronic kidney or liver disease (except NAFLD or DKD) * Pregnancy, breast-feeding or intension of becoming pregnant * Prior bariatric surgery * History of malignancy * Current participation in another clinical trial that may affect study outcomes * Other conditions, that in the determination of the study investigator, may interfere with study participation * Inclusion Criteria for the Obese control group * Age 13-19.9 years of age at time of signing the consent * Clinical indication to receive bariatric surgery Exclusion Criteria for the obese control group * Known diabetes * Any chronic oral steroids use within 60 days of enrollment * Current pancreatotoxic drugs * Chronic kidney or liver disease (except NAFLD or DKD) * Pregnancy, breast-feeding or intension of becoming pregnant * Prior bariatric surgery * History of malignancy * Current participation in another clinical trial that may affect study outcomes * Other conditions, that in the determination of the study investigator, may interfer…