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April 1975

Sarcoplasmic Masses: Enzyme Histochemistry and Autoradiography

Author Affiliations

From the laboratories of experimental neurology and pathological anatomy, Histochemical Section, Wilhelmina Gasthuis, Amsterdam.

Arch Neurol. 1975;32(4):247-249. doi:10.1001/archneur.1975.00490460063008

A comparative enzyme-histochemical study was made of the sarcoplasmic masses in a muscle biopsy specimen from a patient with myotonic dystrophy and those in the jaw-muscle of the Rana temporaria tadpole. The enzyme-histochemical patterns of the two models proved to be identical.

An autoradiographic study was made of the sarcoplasmic masses in the R temporaria tadpole with DL-thyroxine-2-14C and levomethionine 35S. The radioactively labeled compounds were found to be stored or incorporated mainly in the myofibrillae, and virtually not at all in the sarcoplasmic masses.

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