Effects of sulphydryl inhibitors on frog sartorius muscle: N-ethylmaleimide
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چکیده
منابع مشابه
Local movement in stimulated frog sartorius muscle
Local movement was recorded in tetanically contracting frog sartorius muscle to estimate the nonuniformity in the distribution of compliance in the muscle preparation and the compliance that resides in the attachments of the preparation to the measuring apparatus. The stimulated muscle was also subjected to rapid length changes, and the local movements and tension responses were recorded. The r...
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Upon excitation of a muscle with two stimuli and variation of the interval between them up to the end of the period of full mechanical fusion, an increment of the isometric heat over that found in a single twitch is obtained. This is a good approximation to the activation heat, directly at 0 degrees C, or after certain corrections which become important at higher temperature. The activation hea...
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WEBB, GEORGE Il. Efects of surfactants on the twitch tension uf frog sartorius muscle. Am. J. Physiol. 207(2) : 397-401. 196+--Many types of cells show permeability increases to ions and to various uncharged molecules when exposed to surface-active agents (surfactants) . Nonionic surfactants are less effective than ionic surf’actants in increasing permeability and in depolarizing nerve and musc...
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1 mM caffeine, which produces only twitch potentiation and not contracture in frog sartorius muscle, increases both the uptake and release of (45)Ca in this muscle by about 50 %, thus acting like higher, contracture-producing concentrations but less intensely. Quinine increases the rate of release of (45)Ca from frog sartorius but not from the Achilles tendon. The thresholds for the quinine eff...
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Skeletal muscles which have been soaked for 1 hr in a glycerol-Ringer solution and then returned to normal Ringer solution have a disrupted sarcotubular system. The effect is associated with the return to Ringer's since muscles have normal fine structure while still in glycerol-Ringer's. Karnovsky's peroxidase method was found to be a very reliable marker of extracellular space, filling 98.5% o...
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ژورنال
عنوان ژورنال: British Journal of Pharmacology
سال: 1970
ISSN: 0007-1188
DOI: 10.1111/j.1476-5381.1970.tb10658.x