Results 221 to 230 of about 19,974 (255)
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Histochemical Properties of Fast Twitch Muscle in the Rat
Anatomia, Histologia, Embryologia, 1981AbstractA histochemical study of muscle fibers comprising the extensor digitorum longus muscle of adult female Wistar rats was carried out in which Acid ATPase, Alkaline ATPase, Phosphorylase and SDHase determinations were used to classify muscle fibers.
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Long-term Stimulation of Cat Fast-twitch Skeletal Muscle
Nature, 1973THE recent demonstration by Sreter et al.1 that long-term stimulation of rabbit fast-twitch muscle induces the production, within the muscle, of myosin light chains characteristic of slow-twitch muscle has encouraged us to publish some of our own preliminary observations on the effects of long-term stimulation in the cat.
W S, al-Amood, A J, Buller, R, Pope
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Influence of aerobic metabolism on IMP accumulation in fast-twitch muscle
American Journal of Physiology-Cell Physiology, 1985Significant activation of AMP deaminase in fast-twitch muscle leads to a loss of ATP and accumulation of NH4 and IMP. Although this occurs during severe metabolic stress caused by intense contraction conditions, the process is probably influenced by the muscle's capacity for aerobic metabolism.
G A, Dudley, R L, Terjung
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The effect of hypothyroidism on sarcoplasmic reticulum in fast-twitch muscle of the rat
Biochimica et Biophysica Acta (BBA) - Molecular Cell Research, 1985The effects of hypothyroidism on the Ca2+-transport capabilities of fast-twitch muscle (m. gastrocnemius) of the rat were studied in whole-muscle homogenate and isolated sarcoplasmic reticulum. Hypothyroidism did not affect the percentage recovery and the vesicle composition of the sarcoplasmic reticulum fraction, the total lipid and phospholipid-to ...
W S, Simonides, C, van Hardeveld
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Junctional feet and particles in the triads of a fast-twitch muscle fibre
Journal of Muscle Research and Cell Motility, 1983Structural details of junctional feet in triads of fish muscle are described. These feet have a less dense central core and contact both sarcoplasmic reticulum and T-tubule membranes at tetragonally disposed sites. The distribution of intramembraneous particles differs at the junctional T-membrane, and the junction is asymmetric.
C, Franzini-Armstrong, G, Nunzi
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Reduced glycolytic metabolism in regenerated fast-twitch skeletal muscle
American Journal of Physiology-Cell Physiology, 1991Freely grafted rat extensor digitorum longus (EDL) muscles were subjected to low-frequency stimulation in an anaerobic environment to determine whether regenerating fast-twitch muscles regain normal glycolytic metabolic capacity. Regenerating muscles were tested at 28, 42, and 76 days after the graft procedure.
M A, Wineinger +4 more
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Myofibrillar ATPase activity in human muscle fast-twitch subtypes
Histochemistry, 1983Under local anesthesia, a muscle biopsy was removed from an individual with a high percentage of type II subtypes. The muscle sample was assayed for myofibrillar ATPase activity using various acid preincubation pH values. Subtle differences were found to exist in the acid-lability of ATPase activity among the type II fibers.
R S, Staron, R S, Hikida, F C, Hagerman
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Subgrouping of fast twitch fibres in skeletal muscles of man
Histochemistry, 1978Subgroups of fast twitch (FT) muscle fibres were identified by histochemical techniques on muscle samples of m. quadriceps femoris from six male and six female subjects, who had been assigned to three groups; untrained, active and well trained (endurance runners).
G, Sjøgaard +3 more
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Effect of creatine manipulation on fast‐twitch skeletal muscle of the mouse
Clinical and Experimental Pharmacology and Physiology, 2002Summary1. The effect of short‐term, reversible alteration of muscle total creatine content (Crtot) on force development was sought in fast‐twitch extensor digitorum longus (EDL) muscles of female mice.2. Three in vivo interventions were investigated: 1% creatine‐supplementation, treatment with the creatine‐uptake inhibitor β‐guanidino propionic acid (β‐
Dean M, Robinson, Denis S, Loiselle
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Ultrastructure of an iguana fast twitch denervated muscle.
Acta cientifica venezolana, 1994This ultrastructural study was undertaken to investigate the morphological changes which occur in the fast twitch gastrocnemius muscle of the reptile Iguana iguana after nerve section. It was found that initial degenerative alterations appeared in muscle fibers two weeks after denervation and progressed along the two months of the investigative period.
E, Velasco, H J, Finol, A, Márquez
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