Serum antibodies against the 70k polypeptides of the U1 ribonucleoprotein complex are associated with psychiatric syndromes in systemic lupus erythematosus: a retrospective study
Autor: | Yasushi Kawaguchi, Nozomi Yamaguchi, Hiroaki Hattori, Hisashi Yamanaka, Tadao Iwasaki, Yasuhiro Katsumata, Kinya Nagata, Seisuke Hattori, Koji Tahara, Sayumi Baba, Yuko Okamoto, Kaori Ito, Masako Hara |
---|---|
Rok vydání: | 2013 |
Předmět: |
Adult
Male medicine.medical_specialty Anti-nuclear antibody Adolescent Immunoglobulin G Ribonucleoprotein U1 Small Nuclear Young Adult Antigen Rheumatology Internal medicine medicine Humans skin and connective tissue diseases Psychiatry Pathological Aged Retrospective Studies biology business.industry Lupus Vasculitis Central Nervous System Autoantibody Syndrome Middle Aged Recombinant Proteins Molecular Weight Psychotic Disorders Antibodies Antinuclear Immunology biology.protein Female Antibody business Peptides Anti-SSA/Ro autoantibodies |
Zdroj: | Modern Rheumatology. 23:71-80 |
ISSN: | 1439-7609 1439-7595 |
Popis: | We assessed the association between serum autoantibodies against the 70-kDa polypeptide of the U1-ribonucleoprotein (RNP) complex (U1-70k) and the central nervous system (CNS) syndromes in systemic lupus erythematosus (SLE) patients. We studied 106 hospitalized patients with active SLE, comparing those with (n = 32) and without (n = 74) CNS syndromes. CNS syndromes were further classified into neurologic (n = 21) and psychiatric (n = 15) disorders. Immunoglobulin G (IgG) anti-U1-70k antibodies were measured by enzyme-linked immunosorbent assay (ELISA) using recombinant antigens. IgG antibodies against whole U1-RNP were measured using commercial ELISA kits. Although there was no significant difference in the levels of serum anti-U1-70k antibodies in SLE patients with or without CNS syndromes (p = 0.83), the levels were significantly elevated in SLE patients compared with patients without psychiatric syndromes (p = 0.030). In contrast, no significant difference was observed in the levels of serum anti-U1-RNP antibodies in SLE patients with or without psychiatric syndromes (p = 0.555). These results indicate that serum anti-U1-70k antibodies are associated with psychiatric syndromes in SLE but that they are not associated with CNS syndromes as a whole or with neurologic syndromes. The anti-U1-70k antibodies might be involved in the pathological mechanisms of psychiatric syndromes in SLE. |
Databáze: | OpenAIRE |
Externí odkaz: |