The detection and identification of antibodies to saline extractable nuclear antigens by counterimmunoelectrophoresis

Identification of antibodies to acidic antigens by counterimmunoelectrophoresis.

"Microgel diffusion blotting" for sensitive detection of antibodies to extractable nuclear antigens.

A fast immunoblotting procedure, termed "microgel diffusion blotting," is used to detect and identify antibodies to extractable nuclear antigens (i.e., to Sm, RNP, and SSB) in patients with rheumatic diseases. The method differs from the standard immunoblotting techniques by the use of ultra-thin microgels for polyacrylamide gel electrophoresis: the very thin gel layer allows transfer of protei...

a survey of antibodies for the extractable nuclear antigens and their role in the clinical diagnosis and prognosis of sle

fifty-seven patients suffering from systemic lupus erythematosus with different clinical features were studied from various aspects of immunological abnormalities, including anti-nuclear antibodies; anti-dna; anti-sm (smith's antigen); and, other extractable nuclear antigens. the tests employed were microhemagglutination, counter immunoelecterphoresis, and radio immunoassay (ria). the compariso...

Antibodies to the extractable nuclear antigens (ENA) in Pakistani patients with systemic rheumatic disease.

Autoantibodies to the saline extracts of cells are being used as diagnostic and prognostic markers in the investigation of patients with suspected systemic rheumatic disease. These are also called antibodies to the extractable nuclear antigens or anti ENA antibodies. We used saline extracts of human spleen cells and rabbit thymus extract to detect six subtypes of anti ENA antibodies, namely ant...

Clinical significance of antibodies to soluble extractable nuclear antigens (anti-ENA).

Clinical and biological manifestations have been studied in 134 patients whose serum had antibodies to soluble extractable nuclear antigens (ENA). 85 of the patients had anti-RNP antibodies, 18 had anti-Sm antibodies, and 31 had antibodies to one or more soluble nuclear antigen. In all groups, the predominant clinical manifestations were polyarthritis, Raynaud's phenomenon, fever, and skin invo...