Diabetes Mellitus · Pathology

Which HLA alleles are most strongly associated with an increased risk of Type 1 Diabetes?

  1. HLA-B27 and HLA-B51
  2. HLA-DR3 and HLA-DR4
  3. HLA-DR2 and HLA-DR7
  4. HLA-B5 and HLA-A3
Show answer and explanation

Correct answer: HLA-DR3 and HLA-DR4

Over 90% of Caucasians with Type 1 Diabetes carry HLA-DR3, DR4, or both. These MHC Class II molecules are involved in presenting autoantigens to T-helper cells during the autoimmune process.

Difficulty: Medium Question 15 of 20

Practice all 20 Diabetes Mellitus questions

Keep practicing

More Diabetes Mellitus questions