Biochemical Abnormalities of Muscle Ribosomes During Attacks of Hyperkalemic Periodic Paralysis

Autor: Ionasescu, V., Zellweger, H., Schochet, S. S., Conway, T. W.
Zdroj: ETSU Faculty Works.
Druh dokumentu: Text
DOI: 10.1016/0022-510X(73)90036-1
Popis: Three familial cases (a mother and 2 sons) with hyperkalemic periodic paralysis are presented. Myotonia (orbicularis oculi and hands) was noted all 3 cases. Exposure to cold produced weakness in the 2 older patients. An oral KCl loading test induced paroxysmal weakness in all 3 cases. Ribosomes isolated in 2 cases from biopsied muscle during the induced attacks showed definite increases of protein synthesis in a group of rather heavy muscle polyribosomes. Electron microscopy revealed in both cases scattered small membrane-bound vacuoles, subsarcolemmal aggregates of myotubules, glycogen particles and occasional filamentous bodies.
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