Participants who meet the below inclusion criteria are encouraged to sign up for a screening call to determine if they would be eligible for our research studies:

Inclusion Criteria: Diagnosis of diabetes after 12 months of age and before 50 years of age AND at least one of the following criteria:

  • Presumed diagnosis of type 1 diabetes with one or more of these features atypical of type 1 diabetes
    • Negative autoantibodies (no antibodies to GAD 65, insulin, islet cell, or ICA-512/IA-2)
    • Detectable c-peptide >1 year after diagnosis
    • Adequate diabetes control on unusually small doses of insulin and/or no significant illness with missed insulin doses >1 year after diagnosis
  • Presumed diagnosis of type 2 diabetes with one or more of these features atypical of type 2 diabetes
    • Diagnosis before age 25 years, especially in ethnicities with a low prevalence of type 2 diabetes (non-Hispanic white, Asian, South-east Asian)
    • Not significantly overweight (body mass index <30 kg/m2)
    • No signs of insulin resistance on examination or blood tests
  • Incidental diagnosis of mild but persistent high blood sugar that does not worsen over time
  • Diabetes in 3 or more successive generations of family members with a pattern consistent with a mutated gene being passed from a parent to their children
  • Known genetic cause of diabetes in you or your family