This test detects antibodies directed against ribosomal P proteins (P0, P1, and P2) located on ribosomes inside cells.
Diagnostic Value: Anti-Ribosomal P antibodies are considered highly specific for Systemic Lupus Erythematosus (SLE), even though they are not always present in all patients.
Clinical Significance: These antibodies are particularly associated with neuropsychiatric lupus, including symptoms such as depression, psychosis, and cognitive changes, as well as liver involvement in lupus.
Symptom Correlation: Patients may experience mood disturbances, memory problems, or other neurologic symptoms along with general lupus features such as joint pain and fatigue.
Because of its specificity, the Ribosomal P Antibody test supports diagnosis and deeper evaluation of lupus-related neurological symptoms.