Contractile Function as a Determinant of Muscle Growth

Radovan Zak
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Radovan Zak: The University of Chicago, Departments of Medicine and Phamacological and Physiological Sciences

Chapter 1 in Cell and Muscle Motility, 1981, pp 1-33 from Springer

Abstract: Abstract One of the characteristics of a muscle is its ability to adapt to the extent and type of work it is required to perform, both in health and in disease. The adaptive response of muscle to altered physiological demands can take several forms: (1) changes in size, such as hypertrophy of existing muscle cells secondary to elevated afterload in the myocardium; (2) changes in the relative amount of constituent proteins, such as an increase in the cytochrome C content produced by endurance training; (3) changes in the properties of constituent proteins, such as appearance of the “slow” myosin isozyme after stimulation of fast muscles with the frequency that normally occurs in nerves that supply slow muscles; and (4) a combination of the foregoing changes, such as the hyperthyroid state in the rabbit, in which the size of the heart and its cytochrome C content are increased and in which synthesis of a new molecular form of myosin is initiated.

Keywords: Light Chain; Satellite Cell; Myosin Light Chain; Contractile Function; Muscle Growth (search for similar items in EconPapers)
Date: 1981
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-1-4684-8196-9_1

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DOI: 10.1007/978-1-4684-8196-9_1

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