HLA DQA1 is associated with: (A) SLE, (B) Sjogrens syndrome, (C) Scleroderma, (D) Ankylosing spondylosis
Answer is B. Molecular analysis of human leukocyte antigen (HLA) class II genes has revealed that Sjogren's syndrome, regardless of the patient's ethnic origin, is highly associated with the HLA DQA1*0501 allele. Reference: Harrison 19th edition PG: 2166