Human parvovirus B19 infection in patients with systemic lupus erythematosus

Authors
Citation
Tc. Hsu et Gj. Tsay, Human parvovirus B19 infection in patients with systemic lupus erythematosus, RHEUMATOLOG, 40(2), 2001, pp. 152-157
Citations number
35
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Rheumatology
Journal title
RHEUMATOLOGY
ISSN journal
1462-0324 → ACNP
Volume
40
Issue
2
Year of publication
2001
Pages
152 - 157
Database
ISI
SICI code
1462-0324(200102)40:2<152:HPBIIP>2.0.ZU;2-U
Abstract
Objective. The clinical significance of the presence of B19 DNA in patients with SLE was studied. Methods. Sera from 72 patients with systemic lupus erythematosus (SLE), 23 patients with rheumatoid arthritis (RA), 18 patients with Sjogren's syndrom e (SS), eight patients with Raynaud's phenomenon (RP), five patients with p rimary biliary cirrhosis (PBC), five patients with polymyositis (PM), four patients with erythema infectiosum (EI) and 22 normal controls were examine d for parvovirus B19 (B19) infection by serological assays, nested PCR and Southern blotting. Results. Parvovirus B19 DNA was detected in 17 of 72 patients with SLE and in three of four patients with EI, but not in patients with other systemic rheumatic diseases. Of the 17 patients with B19 DNA, only one had IgG anti- B19 antibody and two had IgM anti-B19 antibodies, whereas IgG and IgM anti- B19 antibodies were detected in 27 (49.1%) and 21 (38.2%) of 55 SLE patient s without B19 DNA respectively. All sera from the patients with ET containe d both IgG and IgM anti-B19 antibodies. B19 DNA was found more commonly in sera from LE patients without anti-B19 antibodies than in those with anti-B 19 antibodies (P < 0.05). Conclusions. B19 infection in patients with SLE may be due to lack of anti- B19 antibodies because of either the immunocompromised nature of the host o r the use of immunosuppressive drugs. There was a higher prevalence of hypo complementaemia and RP in patients with parvovirus B19 viraemia than in tho se without parvovirus B19 viraemia.