Which antibodies are considered to be markers of Sjögren syndrome?
A) Antinuclear antibody
B) Anti-double-stranded DNA
C) Anti-single-stranded DNA
D) Anti-topoisomerase
E) Anti-ribonucleoprotein antibody SS-A (Ro)

Question

Quizplus · Accepted Answer

Anti-ribonucleoprotein antibodies (RNP) are found in about 90% patients with Sjögren syndrome and are found in less than 5% of patients with other autoimmune diseases. Hence, these anti-RNP antibodies, called SS-A and SS-B, are very good markers for this disease.

Which Antibodies Are Considered to Be Markers of Sjögren Syndrome