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Article
December 1967

Myasthenia Gravis: Serum Globulin Bound in Vivo to Skeletal Muscle Striations

Author Affiliations

Brooklyn, NY
From the Department of Medicine, Maimonides Medical Center, and State University of New York, Downstate Medical Center, Brooklyn, NY. Dr. Sato's present address is Department of Medicine, Okayama University Medical School, Okayama City, Japan.

Arch Neurol. 1967;17(6):637-644. doi:10.1001/archneur.1967.00470300079013
Abstract

GLOBULINS which bind in vitro to cross striations of skeletal muscle, as demonstrated by immunofluorescent techniques, were first reported in the serums of patients with myasthenia gravis by Strauss and associates.1 These globulins have been reported to bind to striations of skeletal muscle from experimental animals, normal humans, and myasthenic patients, including patients from whom serum was obtained.2-5 The presence of the striation binding globulin has been reported in the serum of 18% to 68% of patients with myasthenia gravis,1,4-10 and the binding activity of the globulin tends to be higher in myasthenic patients with more severe conditions4-7,9-11 and with thymoma.11-13

Serum globulin bound to cross striations was found in excised muscle in two of five myasthenic patients examined by Gordon and associates14 and in two of four patients examined by Beutner and associates.15 The serums of all of these patients

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