title: [The Sharp syndrome (mixed connective tissue diseases) (author's transl)].
abstract: Sharp and coworkers (69) recently described a group of patients with over-lapping syndromes of lupus erythematosus, polymyositis and progressive systemic sclerosis. Since all these patients showed high titers of an antibody against RNP (ribonucleoproutein), a saline extractable constituent of nuclei, the disease was supposed to be a unique entity within the spectrum of collagen diseases (mixed connective tissue disease, overlapping syndrome). The nosological entity, however, remains to be further established since RNP-antibodies not infrequently occur in other collagenoses (LE, RA) and transition of MCTD in LE have been reported. The clinical syndromes and the serological features of MCTD are described.
mesh_terms: D000974:Antibodies, Antinuclear / Q000032:analysis; D001323:Autoantibodies / Q000032:analysis; D003080:Cold Temperature; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D008212:Lymphocyte Depletion; D008947:Mixed Connective Tissue Disease / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D000974:Antibodies, Antinuclear; D001323:Autoantibodies; D007074:Immunoglobulin G; D007075:Immunoglobulin M
vernacular_title: Das Sharp-Syndrom (Mischkollagenosen).