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Article |

Immune Complexes in the Pericardial Fluid in Systemic Lupus Erythematosus

Francisco P. Quismorio Jr, MD
Arch Intern Med. 1980;140(1):112-114. doi:10.1001/archinte.1980.00330130114028.
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• Two patients with systemic lupus erythematosus (SLE) had pericardial tamponade. The pericardial fluid from both patients contained "mixed" type cryoglobulins consisting of IgG, IgM, and C1q. There was a selective concentration of antinuclear antibodies in the pericardial fluid cryoglobulin of one patient. Pericardial fluid from the same patient contained immune complexes. Anti-DNA antibodies were found in the serum, pericardial fluid, and pericardial fluid cryoprotein. Immune complexes isolated from the pericardial fluid by polyethylene glycol precipitation contained antinuclear antibodies including anti-DNA antibodies. Immune complexes may be important in the pathogenesis of pericarditis in SLE.

(Arch Intern Med 140:112-114, 1980)


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